RecNo	KArRecNo	KArAge	KArErr	KArMin	KArAnalType	KArLabNo	KArDecCon	K2Opct	40ArRad	PctRadAr	SampSuit	AddRef	KArComm	KArSampCom	KArAnalCom	KArOthrCom
3	1	1843.47	90	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.82	315				age of metamorphic crystallization	RADIOGENIC ARGON GREATER THAN 85%		
4	1	2409.21	120	biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	6.94	505				minimum age of intrusion	RADIOGENIC ARGON GREATER THAN 85%		
5	1	1325.18	65	biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	240				minimum age of metamorphic crystallization	RADIOGENIC ARGON GREATER THAN 85%		
6	1	41.63	1.4	biotite	conventional K-Ar	G-B0506/AM-X17837	"4.72E-04, 0.585E-04, 1.19E-04*"	8.17	4.954	65			minimum age of intrusion	"SAMPLE CONTAINS 95% BIOTITE PLUS QUARTZ, FELDSPAR, ETC.  MESH SIZE -60+200."		
7	1	3.17		sanidine	37Ar-41Ar total fusion	21	"4.72E-04, 0.585E-04, 1.19E-04*"	9.2	0.42	17			age not evaluated	ERROR NOT QUOTED		
7	2	2.04		sanidine	37Ar-41Ar total fusion	21	"4.72E-04, 0.585E-04, 1.19E-04*"	9.2	0.27	20			age not evaluated	ANALYTICAL ERROR NOT QUOTED		
7	3	5.73		sanidine	37Ar-41Ar total fusion	21	"4.72E-04, 0.585E-04, 1.19E-04*"	9.2	0.76	19			age not evaluated	ANALYTICAL ERROR NOT QUOTED		
7	4	3.02		sanidine	37Ar-41Ar total fusion	21	"4.72E-04, 0.585E-04, 1.19E-04*"	9.2	0.4	15			age not evaluated	ANALYTICAL ERROR NOT QUOTED		
10	1	2863.09	90	biotite	conventional K-Ar	378	"4.72E-04, 0.585E-04, 1.19E-04*"	7.81	788.9	99			minimum age of intrusion			
11	1	2734.79	80	biotite	conventional K-Ar	3209	"4.72E-04, 0.585E-04, 1.19E-04*"	8.76	808.5	99			minimum age of intrusion			
12	1	2693.34	80	biotite	conventional K-Ar	3342	"4.72E-04, 0.585E-04, 1.19E-04*"	8.43	755.4	99			minimum age of intrusion			
13	1	2714.93	80	biotite	conventional K-Ar	351	"4.72E-04, 0.585E-04, 1.19E-04*"	8.6	782.6	99			minimum age of intrusion			
14	1	2709.07	80	biotite	conventional K-Ar	3296	"4.72E-04, 0.585E-04, 1.19E-04*"	7.73	700.5	99			minimum age of intrusion			
15	1	2704.06	80	biotite	conventional K-Ar	3201	"4.72E-04, 0.585E-04, 1.19E-04*"	8.4	758.5	99			minimum age of intrusion	AVERAGED ARGON CONTENT LISTED		
16	1	2732.76	80	biotite	conventional K-Ar	3160	"4.72E-04, 0.585E-04, 1.19E-04*"	9.16	844.2	99			minimum age of intrusion			
17	1	2671.76	80	biotite	conventional K-Ar	3117	"4.72E-04, 0.585E-04, 1.19E-04*"	8.89	784.4	99			minimum age of intrusion			
18	1	2721.12	80	biotite	conventional K-Ar	491	"4.72E-04, 0.585E-04, 1.19E-04*"	7.63	697.4	99			minimum age of intrusion			
19	1	2748.73	80	biotite	conventional K-Ar	466	"4.72E-04, 0.585E-04, 1.19E-04*"	8.53	795.1	99			minimum age of intrusion	AVERAGED ARGON CONTENT LISTED		
20	1	2736.68	80	biotite	conventional K-Ar	456	"4.72E-04, 0.585E-04, 1.19E-04*"	8.64	798.5	99			minimum age of intrusion	AVERAGED ARGON CONTENT LISTED		
21	1	2434.97	70	biotite	conventional K-Ar	496	"4.72E-04, 0.585E-04, 1.19E-04*"	6.76	501.5	98			minimum age of intrusion			
22	1	2472.26	70	biotite	conventional K-Ar	498	"4.72E-04, 0.585E-04, 1.19E-04*"	5.75	438.6	99			minimum age of intrusion			
23	1	2633.67	80	biotite	conventional K-Ar	3290	"4.72E-04, 0.585E-04, 1.19E-04*"	6.19	531.4	99			minimum age of intrusion			
24	1	2502.91	80	biotite	conventional K-Ar	3324	"4.72E-04, 0.585E-04, 1.19E-04*"	7.26	566.5	99			minimum age of intrusion	AVERAGED ARGON CONTENT LISTED		
25	1	2447.92	70	biotite	conventional K-Ar	3260	"4.72E-04, 0.585E-04, 1.19E-04*"	2.71	203	98			minimum age of intrusion	AVERAGED ARGON CONTENT LISTED		
26	1	2572.43	80	biotite	conventional K-Ar	3314	"4.72E-04, 0.585E-04, 1.19E-04*"	5.67	465.6	98			minimum age of intrusion	AVERAGED ARGON CONTENT LISTED		
27	1	2501.55	80	biotite	conventional K-Ar	4120	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	647	99			minimum age of metamorphic crystallization			
28	1	2498.04	80	biotite	conventional K-Ar	4102	"4.72E-04, 0.585E-04, 1.19E-04*"	7.11	552.8	99			minimum age of metamorphic crystallization			
29	1	2617.56	80	biotite	conventional K-Ar	4101	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	699.2	99			minimum age of metamorphic crystallization			
30	1	2510.65	80	biotite	conventional K-Ar	3397	"4.72E-04, 0.585E-04, 1.19E-04*"	7.88	618.4	99			minimum age of metamorphic crystallization			
31	1	2492.41	80	biotite	conventional K-Ar	4194	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	634.9	99			minimum age of metamorphic crystallization			
32	1	2505.41	80	biotite	conventional K-Ar	3421	"4.72E-04, 0.585E-04, 1.19E-04*"	3.67	286.9	98			minimum age of metamorphic crystallization			
33	1	2437.63	70	biotite	conventional K-Ar	4128	"4.72E-04, 0.585E-04, 1.19E-04*"	3.83	284.7	98			minimum age of metamorphic crystallization			
34	1	2479.2	70	biotite	conventional K-Ar	3375	"4.72E-04, 0.585E-04, 1.19E-04*"	6.25	479.2	99			minimum age of intrusion			
35	1	2372.53	70	biotite	conventional K-Ar	4181	"4.72E-04, 0.585E-04, 1.19E-04*"	7.19	508.9	99			minimum age of metamorphic crystallization	AVERAGED ARGON CONTENT LISTED		
36	1	2506.76	80	biotite	conventional K-Ar	3440	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	644.8	99			minimum age of metamorphic crystallization			
37	1	2464.1	70	biotite	conventional K-Ar	4220	"4.72E-04, 0.585E-04, 1.19E-04*"	8.08	612.6	99			minimum age of metamorphic crystallization			
38	1	2402.3	70	biotite	conventional K-Ar	4222	"4.72E-04, 0.585E-04, 1.19E-04*"	8.79	636.3	98			minimum age of metamorphic crystallization			
39	1	39.68	2.1	hornblende	conventional K-Ar	L-949	"4.72E-04, 0.585E-04, 1.19E-04*"	0.599	0.346	25			age meaning uncertain (analysis questionable and geologic factors	"ANALYZED MATERIAL CONSISTED OF HORNBLENDE PLUS AEGIRINE-AUGITE, -60+100 MESH"		
40	1	49.95	1.6	hornblende	conventional K-Ar	L-950	"4.72E-04, 0.585E-04, 1.19E-04*"	0.506	0.369	42			age of intrusion	ANALYZED MATERIAL CONTAINED HORNBLENDE PLUS AUGITE;     -60 +100 MESH		
41	1	55.51	2.2	augite-ferroaugite	conventional K-Ar	L-1018	"4.72E-04, 0.585E-04, 1.19E-04*"	0.207	0.168	30			age of intrusion	ANALYZED AUGITE CONTAINED 5% IMPURITIES.  AVERAGED     POTASSIUM CONTENT LISTED		
42	1	50.92	1.7	aegerine (acmite)	conventional K-Ar	L-1115	"4.72E-04, 0.585E-04, 1.19E-04*"	0.195	0.145	35			age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES		
43	1	1.11	0.4	phlogopite	conventional K-Ar	L-1019	"4.72E-04, 0.585E-04, 1.19E-04*"	10.19	0.163	5			age of intrusion			
44	1	1810	40	amphiboles	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	0.1658	0.7436	93			minimum age of intrusion			
45	1	1686	40	amphiboles	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	0.1915	0.7687	70			minimum age of intrusion			
46	1	1877	40	amphiboles	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	0.1643	7.81	80			minimum age of intrusion			
47	1	47.42	2.3	hornblende	conventional K-Ar	DKA1439	"4.72E-04, 0.584E-04, 1.19E-04*"	0.61	0.422	62			minimum age of volcanism	POTASSIUM CONTENT DETERMINED BY ISOTOPE   DILUTION IN REPLICATE		
48	1	47.2	1.8	hornblende	conventional K-Ar	DKA-1437	"4.72E-04, 0.584E-04, 1.19E-04*"	0.658	0.453	76			age of volcanism	"POTASSIUM CONTENT DETERMINED BY ISOTOPE DILUTION     ANALYSES, IN REPLICATE"		
49	1	75	1.5	biotite	conventional K-Ar	7	"4.72E-04, 0.584E-04, 1.19E-04*"	8.88	9.79	92			age of volcanism			
49	2	74.06	0.7	biotite	conventional K-Ar	7	"4.72E-04, 0.584E-04, 1.19E-04*"	8.48	9.23	94			age of volcanism			
50	1	1500.64	80	whole rock	conventional K-Ar	BT-21	"4.72E-04, 0.585E-04, 1.19E-04*"	1.13	38.08	85		Baadsgaard and Mueller (1973)		POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
51	1	1962.32	100	whole rock	conventional K-Ar	BT-29	"4.72E-04, 0.585E-04, 1.19E-04*"	1.67	85.34	98		Baadsgaard and Mueller (1973)		POTASSIUM DETERMINED BY X-RAY FLUORSCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER		
52	1	2157.82	110	whole rock	conventional K-Ar	BT-31	"4.72E-04, 0.585E-04, 1.19E-04*"	0.39	23.37	98		Baadsgaard and Mueller (1973)		POTASSIUM DETERMINED BY GRAVIMETRIC METHOD.  ARGON CONTENT CALCULCATED BY COMPILER.		
53	1	740.87	40	whole rock	conventional K-Ar	BT-33	"4.72E-04, 0.585E-04, 1.19E-04*"	1.16	15.3	95		Baadsgaard and Mueller (1973)		POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER		
54	1	1691.02	80	whole rock	conventional K-Ar	BT-37	"4.72E-04, 0.585E-04, 1.19E-04*"	1.38	55.67	98		Baadsgaard and Mueller (1973)		POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
55	1	1995.55	100	whole rock	conventional K-Ar	BT-39	"4.72E-04, 0.585E-04, 1.19E-04*"	0.58	30.47	98		Baadsgaard and Mueller (1973)		POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
56	1	1664.86	80	whole rock	conventional K-Ar	BG-2	"4.72E-04, 0.585E-04, 1.19E-04*"	0.57	22.45	96			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
57	1	2504.59	130	whole rock	conventional K-Ar	BG-3	"4.72E-04, 0.585E-04, 1.19E-04*"	0.55	42.97	98			minimum age of intrusion	POTASSIUM DETEMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
58	1	1634.36	80	whole rock	conventional K-Ar	BG-7	"4.72E-04, 0.585E-04, 1.19E-04*"	0.62	23.74	98			minimum age of intrusion	POTASSIUM DETERMINED BY GRAVIMETRIC ANALYSIS.  ARGON CONTENT CALCULATED BY COMPILER.		
59	1	2021.78	100	whole rock	conventional K-Ar	BG-11	"4.72E-04, 0.585E-04, 1.19E-04*"	0.57	30.6	97			minimum age of intrusion	POTASSIUM DETERMINED BY GRAVIMETRIC ANALYSIS.  ARGON CONTENT CALCULATED BY COMPILER.		
60	1	1880.07	90	whole rock	conventional K-Ar	BG-12	"4.72E-04, 0.585E-04, 1.19E-04*"	0.75	35.75	98			minimum age of intrusion	POTASSIUM DETERMINED BY GRAVIMETRIC ANALYSIS.  ARGON CONTENT CALCULATED BY COMPILER.		
61	1	1594.19	80	whole rock	conventional K-Ar	BG-13	"4.72E-04, 0.585E-04, 1.19E-04*"	0.64	23.6	95			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
62	1	2127.12	110	whole rock	conventional K-Ar	A-46	"4.72E-04, 0.585E-04, 1.19E-04*"	0.38	22.22	97			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORSCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
63	1	1400.92	70	whole rock	conventional K-Ar	A-89	"4.72E-04, 0.585E-04, 1.19E-04*"	0.31	9.452	87			minimum age of intrusion	POTASSIUM DETERMINED BY GRAVIMETRIC ANALYSIS.  ARGON CONTENT CALCULATED BY COMPILER.		
64	1	2107.62	110	whole rock	conventional K-Ar	OC-1	"4.72E-04, 0.585E-04, 1.19E-04*"	1.06	61.02	98			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
65	1	2089.47	100	whole rock	conventional K-Ar	OC-2	"4.72E-04, 0.585E-04, 1.19E-04*"	0.74	41.98	98			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
66	1	1912.44	100	whole rock	conventional K-Ar	OC-4	"4.72E-04, 0.585E-04, 1.19E-04*"	0.87	42.63	99			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
67	1	1946.81	100	whole rock	conventional K-Ar	OC-6	"4.72E-04, 0.585E-04, 1.19E-04*"	0.86	43.38	99			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
68	1	2019.87	100	whole rock	conventional K-Ar	OC-9	"4.72E-04, 0.585E-04, 1.19E-04*"	0.9	48.24	96			minimum age of intrusion	POTASSIUM DETERMINED BY GRAVIMETRIC ANALYSIS.  ARGON CONTENT CALCULATED BY COMPILER.		
69	1	1781.58	90	whole rock	conventional K-Ar	WRD-2	"4.72E-04, 0.585E-04, 1.19E-04*"	1.22	53.38	99			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
70	1	1791.38	90	whole rock	conventional K-Ar	WRD-7	"4.72E-04, 0.585E-04, 1.19E-04*"	0.97	42.81	99			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
71	1	909.59	45	whole rock	conventional K-Ar	WRD-36	"4.72E-04, 0.585E-04, 1.19E-04*"	0.69	11.75	99			age meaning uncertain (analysis questionable)	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
72	1	1419.48	70	whole rock	conventional K-Ar	WRD-37	"4.72E-04, 0.585E-04, 1.19E-04*"	1.08	33.56	99		Spall (1971)		POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
73	1	1482.29	70	whole rock	conventional K-Ar	WRD-38	"4.72E-04, 0.585E-04, 1.19E-04*"	0.84	27.8	99		Spall (1971)		POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
74	1	1308.94	60	whole rock	conventional K-Ar	WRD-40	"4.72E-04, 0.585E-04, 1.19E-04*"	0.98	27.13	99		Spall (1971)	age meaning uncertain (analysis questionable)	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
75	1	2058.98	100	whole rock	conventional K-Ar	WRD-43	"4.72E-04, 0.585E-04, 1.19E-04*"	0.96	53.13	98			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
76	1	1889.12	90	whole rock	conventional K-Ar	WRD-47	"4.72E-04, 0.585E-04, 1.19E-04*"	0.54	25.94	96			minimum age of intrusion	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE AND A GRAVIMETRIC METHOD. ARGON CONTENT CALCULATED BY COMPILER.		
90	1	780.71	31	whole rock	conventional K-Ar	WY13	"4.72E-04, 0.584E-04, 1.18E-04*"	1.09	15.33	96			age of intrusion	ARGON-40 DATA IS AVERAGE OF REPLICATE DETERMINATIONS; OTHER RADIOGENIC ARGON VALUE IS 85%.		
91	1	823.45	33	biotite	conventional K-Ar	WY12A	"4.72E-04, 0.584E-04, 1.18E-04*"	6.445	96.83	93	7		age of later metamorphism	THIS IS ONE OF TWO BIOTITE SPLITS OF DIFFERENT MESH SIZE.		
91	2	763.12	30	biotite	conventional K-Ar	WY12A'	"4.72E-04, 0.584E-04, 1.18E-04*"	4.47	61.13	90	7		age of later metamorphism	THIS IS ONE OF TWO BIOTITE SPLITS OF DIFFERENT MESH SIZE.  ARGON CONTENT DETERMINED IN REPLICATE.  THE OTHER RADIOGENIC ARGON VALUE IS 89%.		
91	3	1488.38	60	hornblende	conventional K-Ar	WY12A	"4.72E-04, 0.584E-04, 1.18E-04*"	0.78	25.97	93	7		age of later metamorphism	POTASSIUM AND ARGON CONTENT DETERMINED IN REPLICATE; AVERAGED VALUES GIVEN.  THE OTHER RADIOGENIC ARGON VALUE IS 83%.		
92	1	2416.17	90	hornblende	conventional K-Ar	WY12B	"4.72E-04, 0.584E-04, 1.18E-04*"	0.918	67.15	98	7		age of later metamorphism	ARGON CONTENT DETERMINED IN REPLICATE; AVERAGED VALUE GIVEN. OTHER RADIOGENIC ARGON VALUE IS 95%.		
93	1	1054.71	40	biotite	conventional K-Ar	WY12D	"4.72E-04, 0.584E-04, 1.18E-04*"	7.29	150.4	98	7		age of later metamorphism			
93	2	2481.4	100	hornblende	conventional K-Ar	WY12D	"4.72E-04, 0.584E-04, 1.18E-04*"	0.918	70.5	97	7		age of later metamorphism			
94	1	1250.57	50	biotite	conventional K-Ar	WY12E	"4.72E-04, 0.584E-04, 1.18E-04*"	6.51	169.1	98	7		age of later metamorphism	ARGON CONTENT DETERMINED IN REPLICATE; AVERAGED VALUE GIVEN.  OTHER RADIOGENIC ARGON VALUE IS 97%.		
95	1	2583.52	110	hornblende	conventional K-Ar	WY12F	"4.72E-04, 0.584E-04, 1.18E-04*"	0.884	73.18	96	7		age of metamorphic crystallization			
97	1	1936.69	80	biotite	conventional K-Ar	WY12H	"4.72E-04, 0.584E-04, 1.18E-04*"	6.87	343.6	97	7		age of later metamorphism			
98	1	2275.99	90	biotite	conventional K-Ar	WY12J	"4.72E-04, 0.584E-04, 1.18E-04*"	4.88	320.8	96	7		age of later metamorphism			
98	2	2587.32	100	hornblende	conventional K-Ar	WY12J	"4.72E-04, 0.584E-04, 1.18E-04*"	0.86	71.39	98	7		age of metamorphic crystallization	ARGON CONTENT DETERMINED THREE TIMES; AVERAGED VALUE GIVEN.  OTHER RADIOGENIC ARGON VALUES ARE 96% AND 96%.		
99	1	2581.05	100	biotite	conventional K-Ar	WY12N	"4.72E-04, 0.584E-04, 1.18E-04*"	7.29	602.4	98	7		age of metamorphic crystallization	ARGON CONTENT DETERMINED IN REPLICATE.  OTHER RADIOGENIC ARGON VALUE IS 96%.		
100	1	39		Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"					Black (1969)	minimum age of volcanism	ANALYTICAL DATA NOT GIVEN		
101	1	39		Unk	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"					Black (1969)	minimum age of volcanism	ANALYTICAL DATA NOT GIVEN		
102	1	34		Unk	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	ANALYTICAL DATA NOT GIVEN		
103	1	41.2		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"					Riedel (1969)	age of volcanism	ANALYTICAL DATA NOT GIVEN.		
104	1	34.4	1.4	glass	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"					Riedel (1969)	age of volcanism	ANALYTICAL DATA NOT GIVEN		
105	1	2725.87	140	biotite	conventional K-Ar	3389	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	718.1	99			minimum age of metamorphic crystallization			
106	1	2673.59	140	biotite	conventional K-Ar	3437	"4.72E-04, 0.585E-04, 1.19E-04*"	6.91	610.5	99			minimum age of metamorphic crystallization			
107	1	2655.32	140	biotite	conventional K-Ar	4166	"4.72E-04, 0.585E-04, 1.19E-04*"	7.46	650.5	99			minimum age of metamorphic crystallization			
108	1	2640.95	130	biotite	conventional K-Ar	4123	"4.72E-04, 0.585E-04, 1.19E-04*"	7.19	620.5	99			minimum age of metamorphic crystallization			
109	1	2503.26	130	biotite	conventional K-Ar	3217	"4.72E-04, 0.585E-04, 1.19E-04*"	7.95	620.5	99			minimum age of metamorphic crystallization			
110	1	2387.16	120	biotite	conventional K-Ar	4199	"4.72E-04, 0.585E-04, 1.19E-04*"	4.02	287.7	77			minimum age of metamorphic crystallization			
111	1	2273.44	120	biotite	conventional K-Ar	4212	"4.72E-04, 0.585E-04, 1.19E-04*"	7.97	522.9	99			minimum age of metamorphic crystallization			
112	1	1950	100	feldspar	conventional K-Ar	4111	"4.72E-04, 0.585E-04, 1.19E-04*"	0.99	50.04	98			age not evaluated			
113	1	1942.38	100	feldspar	conventional K-Ar	4177	"4.72E-04, 0.585E-04, 1.19E-04*"	1.18	59.3	97			age not evaluated			
114	1	1802.69	90	feldspar	conventional K-Ar	3406	"4.72E-04, 0.585E-04, 1.19E-04*"	2.47	110.1	98			age not evaluated			
115	1	1383.51	70	feldspar	conventional K-Ar	4143	"4.72E-04, 0.585E-04, 1.19E-04*"	3.85	115.3	98			age not evaluated			
116	1	2134.41	110	whole rock	conventional K-Ar	3429	"4.72E-04, 0.585E-04, 1.19E-04*"	2.28	134.1	98			age not evaluated			
117	1	2900.59	150	biotite	conventional K-Ar	3137	"4.72E-04, 0.585E-04, 1.19E-04*"	4.73	490.4	99			age of metamorphic crystallization			
118	1	3113.02	160	biotite	conventional K-Ar	4115	"4.72E-04, 0.585E-04, 1.19E-04*"	8.35	1001	99			maximum age of intrusion			
119	1	3037.91	160	biotite	conventional K-Ar	3153	"4.72E-04, 0.585E-04, 1.19E-04*"	7.73	880.7	99			maximum age of intrusion			
120	1	2792.39	140	biotite	conventional K-Ar	4142	"4.72E-04, 0.585E-04, 1.19E-04*"	7.73	743.1	87			age of intrusion			
121	1	2694.96	140	biotite	conventional K-Ar	3143	"4.72E-04, 0.585E-04, 1.19E-04*"	6.61	593	100			age of intrusion			
122	1	2778.92	140	biotite	conventional K-Ar	338	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	745.6	99			age of intrusion			
123	1	2743.66	140	biotite	conventional K-Ar	349	"4.72E-04, 0.585E-04, 1.19E-04*"	5.63	522.9	98			age of intrusion			
124	1	2662.54	140	biotite	conventional K-Ar	386	"4.72E-04, 0.585E-04, 1.19E-04*"	8.05	705.6	99			age of intrusion			
125	1	2999.69	150	biotite	conventional K-Ar	3115	"4.72E-04, 0.585E-04, 1.19E-04*"	7.1	788.1	99			maximum age of metamorphic crystallization			
126	1	2650.69	130	whole rock	conventional K-Ar	4149	"4.72E-04, 0.585E-04, 1.19E-04*"	7.6	660.5	87			age of intrusion	POTASSIUM CONTENT APPEARS TOO HIGH FOR WHOLE-ROCK SAMPLE; MORE LIKELY A BIOTITE WAS ANALYZED.		
127	1	2927.78	150	whole rock	conventional K-Ar	3225	"4.72E-04, 0.585E-04, 1.19E-04*"	0.54	57.05	96			maximum age of intrusion			
128	1	2008.55	100	feldspar	conventional K-Ar	39	"4.72E-04, 0.585E-04, 1.19E-04*"	1.47	78.06	96			age of intrusion			
174	1	1578	80	Unk	conventional K-Ar	M78-MU	"4.72E-04, 0.585E-04, 1.19E-04*"	10.42	0.3784				age of metamorphic crystallization			
177	1	1.25		phlogopite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion	NO ANALYTICAL DATA GIVEN.  PHLOGOPITE IS ASSUMED TO BE THE ANALYZED MATERIAL.		
178	1	1.25		phlogopite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion	NO ANALYTICAL DATA GIVEN.  PHLOGOPITE IS ASSUMED TO BE THE ANALYZED MATERIAL.		
179	1	3.72	1	whole rock	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04*"	2.85	0.1526	29			age of volcanism	-60+100 MESH SIZE		
180	1	94		biotite	conventional K-Ar	#4	"4.72E-04, 0.585E-04, 1.19E-04*"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE	"DECAY CONSTANTS:  LAMBDA-BETA=4.76 E-10/YR, LAMBDA-EPSILON=0.589 E-10/YR, 40K/K=1.181 E-04 ATOM PERCENT"	
180	2	97		sanidine	conventional K-Ar	#4	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE		
181	1	96		biotite	conventional K-Ar	#3	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE		
181	2	96		sanidine	conventional K-Ar	#3	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE		SEE RECORD 180 FOR DECAY CONSTANTS
182	1	90		biotite	conventional K-Ar	#2	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE.		
182	2	93		sanidine	conventional K-Ar	#2	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE.		DECAY CONSTANTS - SEE RECORD 180
183	1	90		biotite	conventional K-Ar	#1B	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE.		
183	2	94		sanidine	conventional K-Ar	#1B	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE.  LISTED AGE IS AVERAGE OF TWO DETERMINATIONS:  93.7 AND 94.8 M.Y.		DECAY CONSTANTS - SEE RECORD 180
184	1	86		biotite	conventional K-Ar	#1A	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE.		
184	2	94		sanidine	conventional K-Ar	#1A	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN IN ARTICLE.		DECAY CONSTANTS - SEE RECORD 180
185	1	35.2		sanidine	conventional K-Ar	KA895	"4.72E-04, 0.585E-04, 1.19E-04"	4.31		93			age of volcanism	ANALYZED MATERIAL CONSISTED OF SANIDINE (70%) AND PLAGIOCLASE (30%). NO ARGON CONTENT GIVEN.		
186	1	33.3		biotite	conventional K-Ar	KA897	"4.72E-04, 0.585E-04, 1.19E-04"	6.55		23			age of volcanism	ANALYZED MATERIAL CONSISTED OF BIOTITE WITH SEVERAL PERCENT OF HORNBLENDE.  NO ARGON CONTENT GIVEN.		
187	1	32.6		biotite	conventional K-Ar	KA898	"4.72E-04, 0.585E-04, 1.19E-04"	8.35		69			age of volcanism	NO ARGON CONTENT GIVEN		
188	1	33.7		biotite	conventional K-Ar	KA899	"4.72E-04, 0.585E-04, 1.19E-04"	8.01		59			age of volcanism	NO ARGON CONTENT GIVEN.		
189	1	35.7		sanidine	conventional K-Ar	KA900	"4.72E-04, 0.585E-04, 1.19E-04"	5.19		94			age of volcanism	ANALYZED MATERIAL CONSISTED OF SANIDINE (80%) AND PLAGIOCLASE (20%). NO ARGON CONTENT GIVEN.		
190	1	31.6		biotite	conventional K-Ar	KA1032	"4.72E-04, 0.585E-04, 1.19E-04"	8.16		72			age of volcanism	NO ARGON CONTENT GIVEN.		
191	1	9.2		glass	conventional K-Ar	KA929	"4.72E-04, 0.585E-04, 1.19E-04"	4.84		69			age of volcanism	NO ARGON CONTENT GIVEN.		
192	1	49.2		biotite	conventional K-Ar	KA1012	"4.72E-04, 0.585E-04, 1.19E-04"	5.51		44			age of volcanism	NO ARGON CONTENT GIVEN		
193	1	45.4		biotite	conventional K-Ar	KA1018	"4.72E-04, 0.585E-04, 1.19E-04"	8.31		94			age of volcanism	NO ARGON CONTENT GIVEN.		
194	1	49		biotite	conventional K-Ar	KA1021	"4.72E-04, 0.585E-04, 1.19E-04"	7.97		78			age of volcanism	NO ARGON CONTENT GIVEN.		
195	1	45		biotite	conventional K-Ar	KA1024	"4.72E-04, 0.585E-04, 1.19E-04"	7.77		30			age of volcanism	NO ARGON CONTENT GIVEN		
196	1	2410	100	muscovite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion	NO ANALYTICAL DATA GIVEN	"DECAY CONSTANTS:  LAMBDA-BETA=4.83 E-10/YR, LAMBDA EPSILON=0.585 E-10/YR"	
196	2	1570	60	K feldspar	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN		
196	3	1810	70	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN		
197	1	2410	100	muscovite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion	NO ANALYTICAL DATA GIVEN	"DECAY CONSTANTS:  LAMBDA-BETA=4.83 E-10/YR, LAMBDA-EPSILON=0.585 E-10/YR"	
198	1	2470	100	muscovite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion	NO ANALYTICAL DATA GIVEN		
198	2	1850	70	K feldspar	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN	SEE RECORD 196 FOR DECAY CONSTANTS	
199	1	2460	100	muscovite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion	NO ANALYTICAL DATA GIVEN		
199	2	2250	90	biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion	NO ANALYTICAL DATA GIVEN	SEE RECORD 196 FOR DECAY CONSTANTS	
200	1	1510	60	biotite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	ANALYZED MATERIAL CONSISTED OF BIOTITE AND CHLORITE.  NO ANALYTICAL DATA WAS GIVEN.		
200	2	2490	100	muscovite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion	NO ANALYTICAL DATA GIVEN	SEE RECORD 196 FOR DECAY CONSTANTS	
201	1	2100	80	biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN.	SEE RECORD 196 FOR DECAY CONSTANTS	
202	1	2050	80	biotite	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN.	SEE RECORD 196 FOR DECAY CONSTANTS	
203	1	1840	70	biotite	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN.	SEE RECORD 196 FOR DECAY CONSTANTS	
204	1	1770	70	biotite	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN	SEE RECORD 196 FOR DECAY CONSTANTS	
205	1	2200	90	biotite	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN	SEE RECORD 196 FOR DECAY CONSTANTS	
206	1	1328.99	70	biotite	conventional K-Ar	B-0270	"4.72E-04, 0.585E-04, 1.19E-04*"	6.67	188.65				age of intrusion			
207	1	1389.25	50	biotite	conventional K-Ar	B-0271	"4.72E-04, 0.585E-04, 1.19E-04*"	7.93	238.9				age of intrusion			
208	1	1431.28	70	biotite	conventional K-Ar	B-0272	"4.72E-04, 0.585E-04, 1.19E-04*"	2.14	67.3				maximum age of intrusion	ANALYZED MATERIAL CONTAINS CONSIDERABLE AMOUNT OF AMPHIBOLE AND TRACES OF PLAGIOCLASE.		
209	1	41	1.6	orthoclase	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	5.88	3.59				age of intrusion	SODA-RICH ORTHOCLASE	"DECAY CONSTANTS:  LAMBDA-BETA=4.83 E-10/YR, LAMBDA-EPSILON=0.585 E-10/YR"	
209	2	40.99	1.6	orthoclase	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.88	3.51				age of intrusion	SODA-RICH ORTHOCLASE		
212	1	1693		microcline	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04*"	10.46	422.6				initial age disturbed by later metamorphism	ARGON CONTENT CALCULATED BY COMPILER.		
213	1	2471	50	muscovite	conventional K-Ar	GMYB-11	"4.8E-04, 0.58E-04*"	10.11	770.6	99		Giletti (1968)	age of intrusion	A SINGLE BOOK ABOUT TWO INCHES ACROSS WAS ANALYZED.  LISTED DATA IS AVERAGE OF REPLICATE DETERMINATIONS.		
215	1	2530	50	muscovite	conventional K-Ar	GMYB-16	"4.8E-04, 0.58E-04*"	10.53	838.2	99		Giletti (1968)	age of intrusion	A SINGLE BOOK ABOUT 4.5 INCHES ACROSS AND 4 INCHES THICK.		
216	1	2353	50	biotite	conventional K-Ar	GSMYB-17	"4.8E-04, 0.58E-04*"	9.29	648	96		Giletti (1968)	minimum age of metamorphic crystallization	95% PURE CONCENTRATE		
218	1	2548	50	biotite	conventional K-Ar	GSMYB-20	"4.8E-04, 0.58E-04*"	6.67	537.9	94		Giletti (1968)	minimum age of metamorphic crystallization	BIOTITE CONCENTRATE CONTAINED LESS THAN 5% IMPURITIES.		
219	1	1497.85	60	biotite	conventional K-Ar	PUF-27B	"4.72E-04, 0.584E-04, 1.19E-04*"	9.26	311.2	97			minimum age of metamorphic crystallization			
220	1	1543.68	60	biotite	conventional K-Ar	PUF-25B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.79	238.6	98			minimum age of intrusion			
220	2	1535.84	60	biotite	conventional K-Ar	PUF-25B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.79	236.8	97			minimum age of intrusion			
221	1	1381.15	70	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.99	238.7	98			minimum age of intrusion			
222	1	1359.21	70	biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04*"	3	87.6	95			minimum age of intrusion			
223	1	412.47		glauconite	conventional K-Ar	KA191	"4.72E-04, 0.584E-04, 1.19E-04*"	6.28	41.9	88			age not evaluated	AGE APPEARS TO BE TOO YOUNG FOR A CAMBRIAN SAMPLE.		
224	1	655.05		illite	conventional K-Ar	KA258	"4.72E-04, 0.584E-04, 1.19E-04*"	7.37	83.8	95			age not evaluated			
224	2	715.83		illite	conventional K-Ar	KA259	"4.72E-04, 0.584E-04, 1.19E-04*"	7.51	95	88			age not evaluated	16 TO 150 MICRO SIZE GRAINS FROM DISAGGREGATED SHALE		
224	3	656.24		illite	conventional K-Ar	KA260	"4.72E-04, 0.584E-04, 1.19E-04*"	7.24	82.5	92			age not evaluated	8-16 MICRO SIZE GRAINS FROM DISAGGREGATED SHALE		
224	4	538.64		illite	conventional K-Ar	KA261	"4.72E-04, 0.584E-04, 1.19E-04*"	7.06	63.8	92			age of volcanism	LESS THAN 8 MICRO SIZE GRAINS FROM DISAGGREGATED SHALE		
239	1	2470	50	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"					Gast and others (1958)	minimum age of intrusion	NO ANALYTICAL DATA GIVEN		
241	1	2520	50	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"					Gast and others (1958)	age of intrusion	NO ANALYTICAL DATA GIVEN		
242	1	2340	50	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"					Gast and others (1958)	minimum age of metamorphic crystallization	NO ANALYTICAL DATA GIVEN		
244	1	2540	100	biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of metamorphic crystallization	NO ANALYTICAL DATA GIVEN		
245	1	1410		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN		
246	1	1970		muscovite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN		
247	1	2240		muscovite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of intrusion	NO ANALYTICAL DATA GIVEN		
248	1	1680		muscovite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	NO ANALYTICAL DATA GIVEN		
249	1	49.2	1.5	sanidine	conventional K-Ar	A	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
250	1	48	1.3	biotite	conventional K-Ar	C	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
251	1	47.9	1.3	sanidine	conventional K-Ar	E	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
251	2	48.5	1.3	biotite	conventional K-Ar	E	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
252	1	46.1	1.2	sanidine	conventional K-Ar	F	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
253	1	49.3	1.4	biotite	conventional K-Ar	G	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN; BIOTITE IS ALTERED.		
254	1	47.8	1.3	sanidine	conventional K-Ar	H	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
254	2	47.9	1.3	biotite	conventional K-Ar	H	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
255	1	46.2	1.8	hornblende	conventional K-Ar	I	"4.72E-04, 0.584E-04, 1.19E-04"					Rohrer and Obradavich (1969)	age of volcanism	NO ANALYTICAL DATA GIVEN		
256	1	46.5	2.3	hornblende	conventional K-Ar	J	"4.72E-04, 0.584E-04, 1.19E-04"					Rohrer and Obradavich (1969)	age of volcanism	NO ANALYTICAL DATA GIVEN		
257	1	44.4	1.4	hornblende	conventional K-Ar	K	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL  DATA GIVEN		
257	2	45.5	1.3	biotite	conventional K-Ar	K	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
258	1	47.1	1.3	biotite	conventional K-Ar	L	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
259	1	46.7	1.5	biotite	conventional K-Ar	M	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO   ANALYTICAL DATA GIVEN		
260	1	44.6	1.2	biotite	conventional K-Ar	N	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism	NO ANALYTICAL DATA GIVEN		
261	1	1305.47		whole rock	conventional K-Ar	MBT-17	"4.72E-04, 0.585E-04, 1.19E-04*"	0.62	17.1	97			initial age disturbed by later metamorphism	POTASSIUM VALUE IS AVERAGE OF REPLICATE DETERMINATION.		
262	1	1511.59		whole rock	conventional K-Ar	MBT-46	"4.72E-04, 0.585E-04, 1.19E-04*"	0.96	32.7	88			initial age disturbed by later metamorphism			
263	1	1713.73		whole rock	conventional K-Ar	MBT-47	"4.72E-04, 0.585E-04, 1.19E-04*"	1.44	59.3	100			initial age disturbed by later metamorphism			
264	1	1385.19		whole rock	conventional K-Ar	MBT-50A	"4.72E-04, 0.585E-04, 1.19E-04*"	1.27	38.1	100			initial age disturbed by later metamorphism			
265	1	1628.65		whole rock	conventional K-Ar	MBT-1	"4.72E-04, 0.585E-04, 1.19E-04*"	1.15	43.8	99			initial age disturbed by later metamorphism			
266	1	1710.67		whole rock	conventional K-Ar	MBT-2	"4.72E-04, 0.585E-04, 1.19E-04*"	1.5	61.6	100			initial age disturbed by later metamorphism			
267	1	1588.9		whole rock	conventional K-Ar	MBT-2B	"4.72E-04, 0.585E-04, 1.19E-04*"	1.36	49.9	99			initial age disturbed by later metamorphism			
268	1	2045.78		whole rock	conventional K-Ar	MBT-4	"4.72E-04, 0.585E-04, 1.19E-04*"	2.21	121	98			initial age disturbed by later metamorphism	POTASSIUM VALUE IS AVERAGE OF REPLICATE DETERMINATIONS.		
269	1	1559.16		whole rock	conventional K-Ar	MBT-16A	"4.72E-04, 0.585E-04, 1.19E-04*"	1.5	53.5	98			initial age disturbed by later metamorphism			
270	1	1677.28		whole rock	conventional K-Ar	MBT-21	"4.72E-04, 0.585E-04, 1.19E-04*"	1.23	49	99			initial age disturbed by later metamorphism			
271	1	1365.39		whole rock	conventional K-Ar	MBT-55	"4.72E-04, 0.585E-04, 1.19E-04*"	1.31	38.5	90			initial age disturbed by later metamorphism			
272	1	1337.03		whole rock	conventional K-Ar	MBT-25	"4.72E-04, 0.585E-04, 1.19E-04*"	1.56	44.5	95			initial age disturbed by later metamorphism			
273	1	1609.05		whole rock	conventional K-Ar	MBT-26	"4.72E-04, 0.585E-04, 1.19E-04*"	1.19	44.5	97			initial age disturbed by later metamorphism			
274	1	769.73		whole rock	conventional K-Ar	MBT-3	"4.72E-04, 0.585E-04, 1.19E-04*"	1.23	17	96			age of intrusion			
274	2	769.73	32	whole rock	40Ar-40K isochron	MBT-3	"4.72E-04, 0.585E-04, 1.19E-04*"	1.23	17		20		age of intrusion			
275	1	748.83		whole rock	conventional K-Ar	MBT-5	"4.72E-04, 0.585E-04, 1.19E-04*"	1.13	15.1	95			age of intrusion			
275	2	748.83	32	whole rock	40Ar-40K isochron	MBT-5	"4.72E-04, 0.585E-04, 1.19E-04*"	1.13	15.1		20		age of intrusion			
276	1	745.99		whole rock	conventional K-Ar	MBT-22	"4.72E-04, 0.585E-04, 1.19E-04*"	1.03	13.7	90			age of intrusion			
276	2	745.99	32	whole rock	40Ar-40K isochron	MBT-22	"4.72E-04, 0.585E-04, 1.19E-04*"	1.03	13.7		20		age of intrusion			
277	1	744.76		whole rock	conventional K-Ar	MBT-23	"4.72E-04, 0.585E-04, 1.19E-04*"	1.13	15	92			age of intrusion			
277	2	744.76	32	whole rock	40Ar-40K isochron	MBT-23	"4.72E-04, 0.585E-04, 1.19E-04*"	1.13	15		20		age of intrusion			
278	1	740.51		whole rock	conventional K-Ar	MBT-24	"4.72E-04, 0.585E-04, 1.19E-04*"	1.1	14.5	93			age of intrusion			
278	2	740.51	32	whole rock	40Ar-40K isochron	MBT-24	"4.72E-04, 0.585E-04, 1.19E-04*"	1.1	14.5		20		age of intrusion			
279	1	749.03		whole rock	conventional K-Ar	MBT-51	"4.72E-04, 0.585E-04, 1.19E-04*"	0.98	13.1	91			age of intrusion			
279	2	749.03	32	whole rock	40Ar-40K isochron	MBT-51	"4.72E-04, 0.585E-04, 1.19E-04*"	0.98	13.1		20		age of intrusion			
280	1	730		whole rock		BT-2	no decay constants given					Baadsgaard and Mueller (1973)	age of intrusion	N0 ANALYTICAL DATA GIVEN		
285	1	1500		whole rock		BT-7	no decay constants given					Baadsgaard and Mueller (1973)	age of intrusion	NO ANALYTICAL DATA GIVEN		
286	1	74.37	1.8	biotite	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	8.7	9.51	83			age of volcanism			
286	2	73.45	0.7	biotite	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	8.7	9.39	94			age of volcanism			
302	1	2629.87	25	hornblende	conventional K-Ar	987N-0.7	"4.72E-04, 0.584E-04, 1.19E-04*"	0.62	53.08	98	26		minimum age of metamorphic crystallization			
303	1	2577.63	80	hornblende	conventional K-Ar	987N-2	"4.72E-04, 0.584E-04, 1.19E-04*"	0.523	43.11	99	26		minimum age of metamorphic crystallization			
304	1	2658.21	90	hornblende	conventional K-Ar	987N-10	"4.72E-04, 0.584E-04, 1.19E-04*"	0.519	45.35	99	26		minimum age of metamorphic crystallization			
305	1	2763.63	80	hornblende	conventional K-Ar	987N-20	"4.72E-04, 0.584E-04, 1.19E-04*"	0.638	60.1	99	26		minimum age of metamorphic crystallization			
306	1	1455.64	90	biotite	conventional K-Ar	987D	"4.72E-04, 0.584E-04, 1.19E-04*"	0.96	30.94	75	26		initial age disturbed by later metamorphism	(VERY LOW POTASSIUM VALUE FOR BIOTITE SAMPLE)		
307	1	1331.37	50	biotite	conventional K-Ar	987G	"4.72E-04, 0.584E-04, 1.19E-04*"	6.2	175.8	99	26		initial age disturbed by later metamorphism			
308	1	1353.31	50	biotite	conventional K-Ar	987I	"4.72E-04, 0.584E-04, 1.19E-04*"	7.65	222	88	26		initial age disturbed by later metamorphism			
309	1	783.05	50	whole rock	conventional K-Ar	987C	"4.72E-04, 0.584E-04, 1.19E-04*"	0.809	11.42	90	27		minimum age of intrusion	PLAGIOCLASE AND PYROXENE ARE 0.5 TO 1.0 MM LONG.		
310	1	403.1	6	plagioclase	conventional K-Ar	987A	"4.72E-04, 0.584E-04, 1.19E-04*"	1.209	7.862	88	27		age not evaluated			
311	1	592.12	8	plagioclase	conventional K-Ar	575A	"4.72E-04, 0.584E-04, 1.19E-04*"	1.331	13.43	96			age not evaluated			
312	1	2557.73	25	hornblende	conventional K-Ar	984D	"4.72E-04, 0.584E-04, 1.19E-04*"	1.711	139	99			age of metamorphic crystallization			
313	1	45.05	2.6	oligoclase	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04*"	0.92	0.6042	82			age of volcanism	MESH SIZE -50+100		
314	1	44.67	1	sanidine	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.584E-04, 1.19E-04*"	10.705	6.97	54			age of volcanism	MESH SIZE -50+100		
315	1	180.45	5	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.88	21.53	99		Reed and Lanphere (1972)	age of intrusion			
315	2	176.52	5	hornblende	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.742	1.981	89		Reed and Lanphere (1972)	age of intrusion			
316	1	166.51	5	biotite	conventional K-Ar	2A	"4.72E-04, 0.585E-04, 1.19E-04*"	7.96	19.99	97		Reed and Lanphere (1972)	age of intrusion			
317	1	159.29	5	hornblende	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	0.591	1.417	80		Reed and Lanphere (1972)	age of intrusion			
318	1	165.93	5	biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.86	22.17	94		Reed and Lanphere (1972)	age of intrusion			
319	1	172.87	5	hornblende	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.226	0.5903	69		Reed and Lanphere (1972)	age of intrusion			
320	1	28.22	0.8	biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	8.16	3.341	86		Reed and Lanphere (1972)	age of intrusion			
320	2	25.96	0.8	hornblende	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	0.398	0.1498	50		Reed and Lanphere (1972)	age of intrusion			
321	1	27.33	0.8	biotite	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	8.08	3.203	77		Reed and Lanphere (1972)	age of intrusion			
322	1	35.59	1	biotite	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.1	4.191	89		Reed and Lanphere (1972)	age of intrusion			
322	2	37.01	1.1	hornblende	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	0.462	0.2487	48		Reed and Lanphere (1972)	age of intrusion			
323	1	183.33	5	hornblende	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	0.224	0.6223	73		Reed and Lanphere (1972)	age of intrusion			
324	1	166.69	5	biotite	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	9.18	23.08	93		Reed and Lanphere (1972)	age of intrusion			
325	1	161.39	5	biotite	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	5.62	13.66	90		Reed and Lanphere (1972)	age of intrusion			
325	2	158.87	5	hornblende	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	0.44	1.052	83		Reed and Lanphere (1972)	age of intrusion			
326	1	157.57	5	biotite	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	7.8	18.49	94		Reed and Lanphere (1972)	age of intrusion			
327	1	156.04	5	biotite	conventional K-Ar	13	"4.72E-04, 0.585E-04, 1.19E-04*"	7.1	16.66	49		Reed and Lanphere (1972)	age of intrusion			
327	2	164.15	5	muscovite	conventional K-Ar	13	"4.72E-04, 0.585E-04, 1.19E-04*"	9.3	23.01	71		Reed and Lanphere (1972)	age of intrusion			
328	1	160	5	hornblende	conventional K-Ar	14	"4.72E-04, 0.585E-04, 1.19E-04*"	0.27	0.6491	79		Reed and Lanphere (1972)	initial age disturbed by later metamorphism	AGE EFFECTED BY EMPLACEMENT OF CRETACEOUS PLUTON		
329	1	162.97	5	biotite	conventional K-Ar	15	"4.72E-04, 0.585E-04, 1.19E-04*"	8.78	21.56	96		Reed and Lanphere (1972)	age of intrusion	ARGON VALUE IS MEAN VALUE OF 9 ANALYSES; RADIOGENIC ARGON RANGED FROM 82% TO 96%		
329	2	171.7	5	hornblende	conventional K-Ar	15	"4.72E-04, 0.585E-04, 1.19E-04*"	0.952	2.469	77		Reed and Lanphere (1972)	age of intrusion			
330	1	160.65	5	biotite	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	8.09	19.57	97		Reed and Lanphere (1972)	age of intrusion			
330	2	160.14	5	hornblende	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	0.293	0.7064	85		Reed and Lanphere (1972)	age of intrusion	POTASSIUM VALUE IS THE MEAN VALUE OF 11 POTASSIUM ANALYSES		
331	1	87.09	2.6	biotite	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	7.8	10.02	91		Reed and Lanphere (1972)	initial age disturbed by later metamorphism	FIELD RELATIONS SUGGEST JURASSIC AGE		
331	2	92.29	2.7	hornblende	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	0.856	1.167	85		Reed and Lanphere (1972)	initial age disturbed by later metamorphism	FIELD RELATIONS SUGGEST JURASSIC AGE		
332	1	79.83	2.3	biotite	conventional K-Ar	18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	9.754	95		Reed and Lanphere (1972)	initial age disturbed by later metamorphism	FIELD RELATIONS SUGGEST JURASSIC AGE		
333	1	78.03	2.3	biotite	conventional K-Ar	19	"4.72E-04, 0.585E-04, 1.19E-04*"	7.6	8.725	93		Reed and Lanphere (1972)	initial age disturbed by later metamorphism	FIELD RELATIONS SUGGEST JURASSIC AGE		
333	2	90.08	2.6	hornblende	conventional K-Ar	19	"4.72E-04, 0.585E-04, 1.19E-04*"	0.855	1.137	81		Reed and Lanphere (1972)	initial age disturbed by later metamorphism	FIELD RELATIONS SUGGEST JURASSIC AGE		
334	1	148	4	muscovite	conventional K-Ar	20	"4.72E-04, 0.585E-04, 1.19E-04*"	9.84	21.85	85		Reed and Lanphere (1972)	initial age disturbed by later metamorphism	FIELD RELATIONS SUGGEST JURASSIC AGE		
335	1	173.96	5	biotite	conventional K-Ar	21	"4.72E-04, 0.585E-04, 1.19E-04*"	5.61	14.75	68		Reed and Lanphere (1972)	age of intrusion			
335	2	171.66	5	hornblende	conventional K-Ar	21	"4.72E-04, 0.585E-04, 1.19E-04*"	0.474	1.229	58		Reed and Lanphere (1972)	age of intrusion			
336	1	75.62	2.2	hornblende	conventional K-Ar	22	"4.72E-04, 0.585E-04, 1.19E-04*"	1.1	1.223	82		Reed and Lanphere (1972)	age of intrusion			
337	1	82.72	2.4	biotite	conventional K-Ar	23	"4.72E-04, 0.585E-04, 1.19E-04*"	6.76	8.238	94		Reed and Lanphere (1972)	age of intrusion			
337	2	85.47	2.5	hornblende	conventional K-Ar	23	"4.72E-04, 0.585E-04, 1.19E-04*"	0.965	1.216	81		Reed and Lanphere (1972)	age of intrusion			
338	1	44.61	1.3	biotite	conventional K-Ar	24	"4.72E-04, 0.585E-04, 1.19E-04*"	5.03	3.271	83		Reed and Lanphere (1972)	age of intrusion			
339	1	62.84	1.8	biotite	conventional K-Ar	25	"4.72E-04, 0.585E-04, 1.19E-04*"	8.1	7.457	80		Reed and Lanphere (1972)	age of intrusion			
339	2	61.01	1.8	hornblende	conventional K-Ar	25	"4.72E-04, 0.585E-04, 1.19E-04*"	0.472	0.4217	48		Reed and Lanphere (1972)	age of intrusion			
340	1	39.62	1.2	biotite	conventional K-Ar	26	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	4.741	84		Reed and Lanphere (1972)	age of intrusion			
341	1	169.7	5	hornblende	conventional K-Ar	26	"4.72E-04, 0.585E-04, 1.19E-04*"	0.262	0.6712	42		Reed and Lanphere (1972)	age of intrusion			
342	1	69.48	2	biotite	conventional K-Ar	27	"4.72E-04, 0.585E-04, 1.19E-04*"	8.48	8.648	87		Reed and Lanphere (1972)	age of intrusion			
343	1	50.45	1.5	biotite	conventional K-Ar	28	"4.72E-04, 0.585E-04, 1.19E-04*"	8.65	6.372	88		Reed and Lanphere (1972)	initial age disturbed by later metamorphism			FIELD RELATIONS SUGGEST JURASSIC AGE
343	2	51.07	1.5	biotite	conventional K-Ar	28	"4.72E-04, 0.585E-04, 1.19E-04*"	8.65	6.451	86		Reed and Lanphere (1972)	initial age disturbed by later metamorphism			FIELD RELATIONS SUGGEST JURASSIC AGE
343	3	63.01	1.8	hornblende	conventional K-Ar	28	"4.72E-04, 0.585E-04, 1.19E-04*"	0.978	0.9029	66		Reed and Lanphere (1972)	initial age disturbed by later metamorphism			
344	1	59.67	1.7	biotite	conventional K-Ar	29	"4.72E-04, 0.585E-04, 1.19E-04*"	8.04	7.022	91		Reed and Lanphere (1972)	age of intrusion			
345	1	72.61	2.1	biotite	conventional K-Ar	30	"4.72E-04, 0.585E-04, 1.19E-04*"	8.89	9.483	96		Reed and Lanphere (1972)	age of intrusion			
345	2	73.88	2.2	hornblende	conventional K-Ar	30	"4.72E-04, 0.585E-04, 1.19E-04*"	0.676	0.734	75		Reed and Lanphere (1972)	age of intrusion			
346	1	158.65	5	biotite	conventional K-Ar	31	"4.72E-04, 0.585E-04, 1.19E-04*"	7.82	18.67	88		Reed and Lanphere (1972)	age of intrusion			
347	1	166.94	5	biotite	conventional K-Ar	32	"4.72E-04, 0.585E-04, 1.19E-04*"	7.45	18.76	95		Reed and Lanphere (1972)	age of intrusion			
347	2	166.27	5	hornblende	conventional K-Ar	32	"4.72E-04, 0.585E-04, 1.19E-04*"	0.66	1.655	86		Reed and Lanphere (1972)	age of intrusion			
348	1	73.46	2.2	hornblende	conventional K-Ar	33	"4.72E-04, 0.585E-04, 1.19E-04*"	1.12	1.209	84		Reed and Lanphere (1972)	age of intrusion			
349	1	27.82	0.6	biotite	conventional K-Ar	34	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	3.512	81		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion	OTHER RADIOGENIC VALUE IS 65 %		
349	2	26.13	1	hornblende	conventional K-Ar	34	"4.72E-04, 0.585E-04, 1.19E-04*"	0.37	0.1402	36		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
350	1	26.65	0.9	hornblende	conventional K-Ar	35	"4.72E-04, 0.585E-04, 1.19E-04*"	0.358	0.1384	28		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
351	1	29.11	0.9	biotite	conventional K-Ar	36	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	3.465	81		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
352	1	26.83	0.8	biotite	conventional K-Ar	37	"4.72E-04, 0.585E-04, 1.19E-04*"	8.16	3.176	81		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
352	2	25.63	1	hornblende	conventional K-Ar	37	"4.72E-04, 0.585E-04, 1.19E-04*"	0.338	0.1256	27		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
353	1	174.22	8.6	hornblende	conventional K-Ar	38	"4.72E-04, 0.585E-04, 1.19E-04*"	0.162	0.4266	64		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
354	1	135.34	5	biotite	conventional K-Ar	39	"4.72E-04, 0.585E-04, 1.19E-04*"	6.4	12.95	94		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			EMPLACEMENT AGE THOUGHT TO BE BETWEEN 154 TO 176 M.Y. (MIDDLE TO EARLY JURASSIC)
354	2	150.85	4.5	hornblende	conventional K-Ar	39	"4.72E-04, 0.585E-04, 1.19E-04*"	0.992	2.247	84		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			EMPLACEMENT AGE THOUGHT TO BE BETWEEN 154 TO 176 M.Y. (MIDDLE TO EARLY JURASSIC)
355	1	155.98	4.6	biotite	conventional K-Ar	40	"4.72E-04, 0.585E-04, 1.19E-04*"	6.8	15.95	90		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
355	2	157.24	4.6	hornblende	conventional K-Ar	40	"4.72E-04, 0.585E-04, 1.19E-04*"	0.706	1.67	85		Reed and Lanphere (1972)	age of intrusion			
356	1	158.36	4.6	biotite	conventional K-Ar	41	"4.72E-04, 0.585E-04, 1.19E-04*"	6.45	15.37	91		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
356	2	160.33	4.7	muscovite	conventional K-Ar	41	"4.72E-04, 0.585E-04, 1.19E-04*"	9.3	22.45	93		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
357	1	97.75	2.8	biotite	conventional K-Ar	42	"4.72E-04, 0.585E-04, 1.19E-04*"	8.92	12.9	87		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMISTRY AND PETROLOGY SUGGEST JURASSIC AGE.
358	1	162.85	4.7	biotite	conventional K-Ar	43	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	21.69	92		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
358	2	161.33	4.7	hornblende	conventional K-Ar	43	"4.72E-04, 0.585E-04, 1.19E-04*"	0.938	2.279	83		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
359	1	164.55	4.8	biotite	conventional K-Ar	44	"4.72E-04, 0.585E-04, 1.19E-04*"	7.39	18.33	90		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
359	2	162.28	4.8	hornblende	conventional K-Ar	44	"4.72E-04, 0.585E-04, 1.19E-04*"	0.632	1.545	85		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
360	1	63.12	1.8	biotite	conventional K-Ar	45	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	7.805	89		Reed and Lanphere (1972); Reed and Lanphere (1969)				A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN THE BIOTITE AND HORNBLENDE AGES
360	2	69.04	2	hornblende	conventional K-Ar	45	"4.72E-04, 0.585E-04, 1.19E-04*"	0.984	0.997	73		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES.
361	1	65.59	1.8	biotite	conventional K-Ar	46	"4.72E-04, 0.585E-04, 1.19E-04*"	9.21	8.857	93		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
361	2	68.75	2	hornblende	conventional K-Ar	46	"4.72E-04, 0.585E-04, 1.19E-04*"	0.826	0.8333	84		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
362	1	39.37	1.1	biotite	conventional K-Ar	47	"4.72E-04, 0.585E-04, 1.19E-04*"	8.88	5.088	73		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
362	2	41.85	1.3	hornblende	conventional K-Ar	47	"4.72E-04, 0.585E-04, 1.19E-04*"	0.667	0.4066	52		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
363	1	34.79	1	biotite	conventional K-Ar	48	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	4.187	82		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
364	1	38.6	1.1	biotite	conventional K-Ar	49	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	4.954	88		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
364	2	39.31	1.9	hornblende	conventional K-Ar	49	"4.72E-04, 0.585E-04, 1.19E-04*"	0.295	0.1688	29		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
365	1	72.4	2	biotite	conventional K-Ar	50	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	9.253	89		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST JURASSIC AGE
365	2	95.81	2.8	hornblende	conventional K-Ar	50	"4.72E-04, 0.585E-04, 1.19E-04*"	0.852	1.207	84		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism	HORNBLENDE AGE DISCORDANT WITH BIOTITE AGE.  CHEMISTRY AND PETROLOGY SIMILAR TO JURASSIC ROCKS IN AREA.		CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST JURASSIC AGE
366	1	68.16	1.9	biotite	conventional K-Ar	51	"4.72E-04, 0.585E-04, 1.19E-04*"	8.94	8.94	90		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
367	1	67.21	1.9	biotite	conventional K-Ar	52	"4.72E-04, 0.585E-04, 1.19E-04*"	8.74	8.616	89		Reed and Lanphere (1972); Reed and Lanphere (1969)				A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN THE BIOTITE AND HORNBLENDE AGES.
367	2	71.48	2.1	hornblende	conventional K-Ar	52	"4.72E-04, 0.585E-04, 1.19E-04*"	0.732	0.7684	72		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES.
368	1	70.03	2	biotite	conventional K-Ar	53	"4.72E-04, 0.585E-04, 1.19E-04*"	9.42	9.684	87		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
368	2	74.36	2.2	hornblende	conventional K-Ar	53	"4.72E-04, 0.585E-04, 1.19E-04*"	1.033	1.129	78		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
369	1	145.68	4.3	hornblende	conventional K-Ar	54	"4.72E-04, 0.585E-04, 1.19E-04*"	0.537	1.173	85		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST JURASSIC AGE.
370	1	65.35	1.8	biotite	conventional K-Ar	55	"4.72E-04, 0.585E-04, 1.19E-04*"	8.88	8.508	88		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
370	2	67.58	2	hornblende	conventional K-Ar	55	"4.72E-04, 0.585E-04, 1.19E-04*"	0.838	0.8308	65		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
371	1	65.12	1.9	biotite	conventional K-Ar	56	"4.72E-04, 0.585E-04, 1.19E-04*"	9.14	8.726	96		Reed and Lanphere (1972); Reed and Lanphere (1969)				A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN THE BIOTITE AND HORNBLENDE AGES.
371	2	70.52	2	hornblende	conventional K-Ar	56	"4.72E-04, 0.585E-04, 1.19E-04*"	0.784	0.8117	80		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES.
372	1	58.79	1.7	biotite	conventional K-Ar	57	"4.72E-04, 0.585E-04, 1.19E-04*"	9.18	7.898	83		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST JURASSIC AGE.
372	2	97.47	3.8	hornblende	conventional K-Ar	57	"4.72E-04, 0.585E-04, 1.19E-04*"	0.731	1.054	67		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST JURASSIC AGE.
373	1	37.48	1	biotite	conventional K-Ar	58	"4.72E-04, 0.585E-04, 1.19E-04*"	8.72	4.754	85		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
374	1	38.58	1.1	biotite	conventional K-Ar	59	"4.72E-04, 0.585E-04, 1.19E-04*"	8.8	4.941	63		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
375	1	31.89	0.9	biotite	conventional K-Ar	60	"4.72E-04, 0.585E-04, 1.19E-04*"	9.02	4.178	80		Reed and Lanphere (1972); Reed and Lanphere (1969)				A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES
375	2	36.31	1.8	hornblende	conventional K-Ar	60	"4.72E-04, 0.585E-04, 1.19E-04*"	0.475	0.2508	35		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES.
376	1	34.55	1.3	biotite	conventional K-Ar	61	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	4.309	37		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
377	1	36.97	1	biotite	conventional K-Ar	62	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	4.705	81		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
378	1	60.04	1.7	biotite	conventional K-Ar	63	"4.72E-04, 0.585E-04, 1.19E-04*"	9.23	8.113	74		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST JURASSIC AGE
378	2	80.74	2.3	hornblende	conventional K-Ar	63	"4.72E-04, 0.585E-04, 1.19E-04*"	0.895	1.064	76		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST JURASSIC AGE
379	1	64.23	1.8	biotite	conventional K-Ar	64	"4.72E-04, 0.585E-04, 1.19E-04*"	6.88	6.477	83		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
379	2	66.45	1.9	hornblende	conventional K-Ar	64	"4.72E-04, 0.585E-04, 1.19E-04*"	0.874	0.8517	75		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
380	1	71.31	2	biotite	conventional K-Ar	65	"4.72E-04, 0.585E-04, 1.19E-04*"	9.18	9.613	86		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion	SUMMIT LAKE ROCKS		
380	2	70.62	2.1	hornblende	conventional K-Ar	65	"4.72E-04, 0.585E-04, 1.19E-04*"	0.926	0.9602	76		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
381	1	62.34	1.8	biotite	conventional K-Ar	66	"4.72E-04, 0.585E-04, 1.19E-04*"	9.54	8.712	79		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
381	2	63.47	1.9	hornblende	conventional K-Ar	66	"4.72E-04, 0.585E-04, 1.19E-04*"	0.694	0.6454	68		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
382	1	64.43	1.8	biotite	conventional K-Ar	67	"4.72E-04, 0.585E-04, 1.19E-04*"	8.64	8.159	86		Reed and Lanphere (1972); Reed and Lanphere (1969)				A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES
382	2	70.37	2.1	hornblende	conventional K-Ar	67	"4.72E-04, 0.585E-04, 1.19E-04*"	0.688	0.7108	64		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES.
383	1	58.39	1.7	biotite	conventional K-Ar	68	"4.72E-04, 0.585E-04, 1.19E-04*"	5.42	4.631	91		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
384	1	54.44	1.6	biotite	conventional K-Ar	69	"4.72E-04, 0.585E-04, 1.19E-04*"	9.01	7.169	78		Reed and Lanphere (1972); Reed and Lanphere (1969)	minimum age of intrusion			
384	2	65.19	1.9	hornblende	conventional K-Ar	69	"4.72E-04, 0.585E-04, 1.19E-04*"	0.569	0.5438	73		Reed and Lanphere (1972); Reed and Lanphere (1969)	maximum age of intrusion			
385	1	57.03	1.6	biotite	conventional K-Ar	70	"4.72E-04, 0.585E-04, 1.19E-04*"	8.68	7.241	95		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
386	1	97.88	3.7	hornblende	conventional K-Ar	71	"4.72E-04, 0.585E-04, 1.19E-04*"	0.799	1.157	81		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST A JURASSIC AGE
387	1	59.58	1.7	biotite	conventional K-Ar	72	"4.72E-04, 0.585E-04, 1.19E-04*"	8.9	7.761	91		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST A JURASSIC AGE
387	2	59.08	1.7	hornblende	conventional K-Ar	72	"4.72E-04, 0.585E-04, 1.19E-04*"	0.946	0.8179	72		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST A JURASSIC AGE
388	1	54.7	2.1	biotite	conventional K-Ar	73	"4.72E-04, 0.585E-04, 1.19E-04*"	8.94	7.148	36		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST A JURASSIC AGE
388	2	60.68	2.3	hornblende	conventional K-Ar	73	"4.72E-04, 0.585E-04, 1.19E-04*"	0.854	0.7588	71		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST A JURASSIC AGE
389	1	53.88	1.5	biotite	conventional K-Ar	74	"4.72E-04, 0.585E-04, 1.19E-04*"	8.77	6.905	88		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			
390	1	35.56	1.1	biotite	conventional K-Ar	75	"4.72E-04, 0.585E-04, 1.19E-04*"	8.5	4.395	57		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
391	1	36.52	1	biotite	conventional K-Ar	76	"4.72E-04, 0.585E-04, 1.19E-04*"	8.6	4.568	73		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
392	1	64	1.8	biotite	conventional K-Ar	77	"4.72E-04, 0.585E-04, 1.19E-04*"	8.88	8.329	85		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
393	1	58.51	1.6	biotite	conventional K-Ar	78	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	7.491	78		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
394	1	57.07	1.1	biotite	conventional K-Ar	79	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	7.046	85		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
395	1	40.89	1.1	biotite	conventional K-Ar	80	"4.72E-04, 0.585E-04, 1.19E-04*"	9.3	5.537	74		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
396	1	34.88	1	biotite	conventional K-Ar	81	"4.72E-04, 0.585E-04, 1.19E-04*"	8.42	4.269	52		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
397	1	41.44	1.1	biotite	conventional K-Ar	82	"4.72E-04, 0.585E-04, 1.19E-04*"	8.98	5.42	80		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			
398	1	36.93	1	biotite	conventional K-Ar	83	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	4.458	75		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
399	1	37.66	1.1	biotite	conventional K-Ar	84	"4.72E-04, 0.585E-04, 1.19E-04*"	7.98	4.372	70		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
400	1	60.62	1.8	biotite	conventional K-Ar	85	"4.72E-04, 0.585E-04, 1.19E-04*"	7.36	6.533	59		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
400	2	61.34	1.9	hornblende	conventional K-Ar	85	"4.72E-04, 0.585E-04, 1.19E-04*"	0.639	0.574	60		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
401	1	61.98	1.6	biotite	conventional K-Ar	86	"4.72E-04, 0.585E-04, 1.19E-04*"	7.99	7.253	88		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
402	1	61.72	1.8	biotite	conventional K-Ar	87	"4.72E-04, 0.585E-04, 1.19E-04*"	7.16	6.472	73		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
402	2	56.92	1.7	hornblende	conventional K-Ar	87	"4.72E-04, 0.585E-04, 1.19E-04*"	0.943	0.7851	81		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
403	1	57.43	1.6	biotite	conventional K-Ar	88	"4.72E-04, 0.585E-04, 1.19E-04*"	8.25	6.931	93		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
404	1	109.43	3.2	hornblende	conventional K-Ar	89	"4.72E-04, 0.585E-04, 1.19E-04*"	0.7	1.137	74		Reed and Lanphere (1972); Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMICAL AND PETROLOGICAL RELATIONS SUGGEST A JURASSIC AGE
405	1	57.96	1.6	biotite	conventional K-Ar	90	"4.72E-04, 0.585E-04, 1.19E-04*"	6.06	5.139	86		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
405	2	60.16	1.8	hornblende	conventional K-Ar	90	"4.72E-04, 0.585E-04, 1.19E-04*"	0.807	0.7107	63		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
406	1	59.75	1.7	biotite	conventional K-Ar	91	"4.72E-04, 0.585E-04, 1.19E-04*"	6.51	5.694	89		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
407	1	60.47	2.4	biotite	conventional K-Ar	92	"4.72E-04, 0.585E-04, 1.19E-04*"	3.54	3.134	81		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
408	1	62.14	1.8	biotite	conventional K-Ar	93	"4.72E-04, 0.585E-04, 1.19E-04*"	6.8	6.189	81		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
408	2	64.2	2.5	hornblende	conventional K-Ar	93	"4.72E-04, 0.585E-04, 1.19E-04*"	0.344	0.3237	43		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
409	1	64.13	1.8	biotite	conventional K-Ar	94	"4.72E-04, 0.585E-04, 1.19E-04*"	8.01	7.528	86		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
409	2	62.12	1.9	hornblende	conventional K-Ar	94	"4.72E-04, 0.585E-04, 1.19E-04*"	0.402	0.3658	65		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
410	1	59.96	1.7	biotite	conventional K-Ar	95	"4.72E-04, 0.585E-04, 1.19E-04*"	7.67	6.732	89		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
410	2	60.01	2.9	hornblende	conventional K-Ar	95	"4.72E-04, 0.585E-04, 1.19E-04*"	1.1	0.9664	79		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
411	1	71.44	2	biotite	conventional K-Ar	96	"4.72E-04, 0.585E-04, 1.19E-04*"	9.03	9.474	93		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
412	1	75.96	2.2	hornblende	conventional K-Ar	97	"4.72E-04, 0.585E-04, 1.19E-04*"	1.061	1.185	77		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
413	1	59.14	1.6	biotite	conventional K-Ar	98	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	7.374	76		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
414	1	40.08	1.1	biotite	conventional K-Ar	99	"4.72E-04, 0.585E-04, 1.19E-04*"	8.8	5.135	79		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
415	1	56.69	1.6	biotite	conventional K-Ar	100	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	6.998	74		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
416	1	26.5	0.8	biotite	conventional K-Ar	101	"4.72E-04, 0.585E-04, 1.19E-04*"	8.88	3.413	77		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
416	2	26.63	0.9	hornblende	conventional K-Ar	101	"4.72E-04, 0.585E-04, 1.19E-04*"	0.906	0.3499	59		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
417	1	25.77	0.8	biotite	conventional K-Ar	102	"4.72E-04, 0.585E-04, 1.19E-04*"	8.69	3.247	83		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
418	1	25.46	0.7	biotite	conventional K-Ar	103	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	3.042	63		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
419	1	63.57	1.9	biotite	conventional K-Ar	104	"4.72E-04, 0.585E-04, 1.19E-04*"	8.71	8.114	78		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
420	1	36.78	0.7	biotite	conventional K-Ar	105	"4.72E-04, 0.585E-04, 1.19E-04*"	9.2	4.922	80		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion	OTHER RADIOGENIC ARGON VALUE IS 77%		
421	1	66.78	1.9	biotite	conventional K-Ar	106	"4.72E-04, 0.585E-04, 1.19E-04*"	8.72	8.541	89		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
422	1	69.16	2	biotite	conventional K-Ar	107	"4.72E-04, 0.585E-04, 1.19E-04*"	8.94	9.074	60		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
423	1	67.49	1.9	biotite	conventional K-Ar	108	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	8.613	66		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
424	1	29.35	0.8	biotite	conventional K-Ar	109	"4.72E-04, 0.585E-04, 1.19E-04*"	8.62	3.672	78		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
425	1	30.87	0.9	biotite	conventional K-Ar	110	"4.72E-04, 0.585E-04, 1.19E-04*"	8.26	3.703	79		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
426	1	29.71	0.9	hornblende	conventional K-Ar	111	"4.72E-04, 0.585E-04, 1.19E-04*"	0.972	0.4192	57		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
427	1	57.42	1.6	biotite	conventional K-Ar	112	"4.72E-04, 0.585E-04, 1.19E-04*"	8.25	6.93	84		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
428	1	59.75	1.6	biotite	conventional K-Ar	113	"4.72E-04, 0.585E-04, 1.19E-04*"	8.51	7.443	89		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
429	1	39.31	1.9	hornblende	conventional K-Ar	114	"4.72E-04, 0.585E-04, 1.19E-04*"	0.428	0.2449	33		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
430	1	66.2	1.9	biotite	conventional K-Ar	115	"4.72E-04, 0.585E-04, 1.19E-04*"	8.54	8.29	91		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
431	1	57.61	1.6	biotite	conventional K-Ar	116	"4.72E-04, 0.585E-04, 1.19E-04*"	8.91	7.509	84		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
432	1	66.22	1.8	biotite	conventional K-Ar	117	"4.72E-04, 0.585E-04, 1.19E-04*"	8.8	8.545	92		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
433	1	56.57	1.6	biotite	conventional K-Ar	118	"4.72E-04, 0.585E-04, 1.19E-04*"	8.91	7.371	89		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
434	1	57.14	1.6	biotite	conventional K-Ar	119	"4.72E-04, 0.585E-04, 1.19E-04*"	8.68	7.255	84		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
434	2	53.57	1.6	muscovite	conventional K-Ar	119	"4.72E-04, 0.585E-04, 1.19E-04*"	10.51	8.228	77		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
435	1	57.86	1.6	biotite	conventional K-Ar	120	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	7.009	88		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
436	1	57.56	1.5	biotite	conventional K-Ar	121	"4.72E-04, 0.585E-04, 1.19E-04*"	8.37	7.048	94		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
437	1	57.06	1.5	biotite	conventional K-Ar	122	"4.72E-04, 0.585E-04, 1.19E-04*"	8.27	6.902	88		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
438	1	56.65	1.6	biotite	conventional K-Ar	123	"4.72E-04, 0.585E-04, 1.19E-04*"	9.34	7.739	89		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
439	1	33.61	1	biotite	conventional K-Ar	124	"4.72E-04, 0.585E-04, 1.19E-04*"	9.14	4.464	87		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
439	2	36.14	1.4	hornblende	conventional K-Ar	124	"4.72E-04, 0.585E-04, 1.19E-04*"	0.626	0.329	55		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
440	1	33.25	0.9	biotite	conventional K-Ar	125	"4.72E-04, 0.585E-04, 1.19E-04*"	9.23	4.459	88		Reed and Lanphere (1972); Reed and Lanphere (1969)				A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES
440	2	36.27	1.6	hornblende	conventional K-Ar	125	"4.72E-04, 0.585E-04, 1.19E-04*"	0.401	0.2115	55		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES.
441	1	35.22	0.9	biotite	conventional K-Ar	126	"4.72E-04, 0.585E-04, 1.19E-04*"	8.64	4.424	81		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
441	2	36.6	1.4	hornblende	conventional K-Ar	126	"4.72E-04, 0.585E-04, 1.19E-04*"	0.312	0.1661	34		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
442	1	35.35	1	biotite	conventional K-Ar	127	"4.72E-04, 0.585E-04, 1.19E-04*"	8.99	4.62	88		Reed and Lanphere (1972); Reed and Lanphere (1969)				A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCES BETWEEN BIOTITE AND HORNBLENDE AGES
442	2	40.1	1.4	hornblende	conventional K-Ar	127	"4.72E-04, 0.585E-04, 1.19E-04*"	0.308	0.18	46		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES.
443	1	37.08	1.1	biotite	conventional K-Ar	128	"4.72E-04, 0.585E-04, 1.19E-04*"	6.36	3.43	84		Reed and Lanphere (1972); Reed and Lanphere (1969)				A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCES BETWEEN THE BIOTITE AND HORNBLENDE AGES
443	2	39.82	1.6	hornblende	conventional K-Ar	128	"4.72E-04, 0.585E-04, 1.19E-04*"	0.365	0.2116	44		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			A VERY GRADUAL COOLING OF THE PLUTON MAY EXPLAIN THE DIFFERENCE BETWEEN BIOTITE AND HORNBLENDE AGES.
444	1	57.39	1.6	biotite	conventional K-Ar	129	"4.72E-04, 0.585E-04, 1.19E-04*"	8.87	7.446	89		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
445	1	57.52	1.6	biotite	conventional K-Ar	130	"4.72E-04, 0.585E-04, 1.19E-04*"	8.19	6.892	92		Reed and Lanphere (1972); Reed and Lanphere (1969)	age of intrusion			
446	1	27.82	0.6	biotite	conventional K-Ar	34	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	3.512	81		Reed and Lanphere (1969)	age of intrusion		OTHER RADIOGENIC VALUE IS 65%	
446	2	26.13	1	hornblende	conventional K-Ar	34	"4.72E-04, 0.585E-04, 1.19E-04*"	0.37	0.1402	36		Reed and Lanphere (1969)	age of intrusion			
447	1	26.65	0.9	hornblende	conventional K-Ar	35	"4.72E-04, 0.585E-04, 1.19E-04*"	0.358	0.1384	28		Reed and Lanphere (1969)	age of intrusion			
448	1	29.11	0.9	biotite	conventional K-Ar	36	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	3.465	81		Reed and Lanphere (1969)	age of intrusion			
449	1	26.83	0.8	biotite	conventional K-Ar	37	"4.72E-04, 0.585E-04, 1.19E-04*"	8.16	3.176	81		Reed and Lanphere (1969)	age of intrusion			
449	2	25.63	1	hornblende	conventional K-Ar	37	"4.72E-04, 0.585E-04, 1.19E-04*"	0.338	0.1256	27		Reed and Lanphere (1969)	age of intrusion			
450	1	174.22	8.6	hornblende	conventional K-Ar	38	"4.72E-04, 0.585E-04, 1.19E-04*"	0.162	0.4266	64		Reed and Lanphere (1969)	age of intrusion			
451	1	135.34	5	biotite	conventional K-Ar	39	"4.72E-04, 0.585E-04, 1.19E-04*"	6.4	12.95	94		Reed and Lanphere (1969)	initial age disturbed by later metamorphism			
451	2	150.85	4.5	hornblende	conventional K-Ar	39	"4.72E-04, 0.585E-04, 1.19E-04*"	0.992	2.247	84		Reed and Lanphere (1969)	age of intrusion			
452	1	155.98	4.6	biotite	conventional K-Ar	40	"4.72E-04, 0.585E-04, 1.19E-04*"	6.8	15.95	90		Reed and Lanphere (1969)	age of intrusion			
452	2	157.24	4.6	hornblende	conventional K-Ar	40	"4.72E-04, 0.585E-04, 1.19E-04*"	0.706	1.67	85		Reed and Lanphere (1969)	age of intrusion			
453	1	158.36	4.6	biotite	conventional K-Ar	41	"4.72E-04, 0.585E-04, 1.19E-04*"	6.45	15.37	91		Reed and Lanphere (1969)	age of intrusion			
453	2	160.33	4.7	muscovite	conventional K-Ar	41	"4.72E-04, 0.585E-04, 1.19E-04*"	9.3	22.45	93		Reed and Lanphere (1969)	age of intrusion			
454	1	97.75	2.8	biotite	conventional K-Ar	42	"4.72E-04, 0.585E-04, 1.19E-04*"	8.92	12.9	87		Reed and Lanphere (1969)	initial age disturbed by later metamorphism			CHEMISTRY AND PETROLOGY SUGGEST SIMILARITY TO JURASSIC ROCKS IN THE AREA
455	1	162.85	4.7	biotite	conventional K-Ar	43	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	21.69	92		Reed and Lanphere (1969)	age of intrusion			
455	2	161.33	4.7	hornblende	conventional K-Ar	43	"4.72E-04, 0.585E-04, 1.19E-04*"	0.938	2.279	83		Reed and Lanphere (1969)	age of intrusion			
456	1	0.29	0.03	glass	conventional K-Ar	S17	"4.72E-04, 0.585E-04, 1.19E-04*"	4.85	0.0201	14			age of volcanism	OBSIDIAN	REPLICATE K ANALYSES	
457	1	1.68	0.05	whole rock	conventional K-Ar	S19	"4.72E-04, 0.585E-04, 1.19E-04*"	2.296	0.0555	40			age of volcanism		REPLICATE K ANALYSES	
458	1	2.52	0.07	whole rock	conventional K-Ar	S20	"4.72E-04, 0.585E-04, 1.19E-04*"	2.811	0.102	67			age of volcanism		REPLICATE K ANALYSES	
459	1	24.61		biotite	37Ar-41Ar total fusion	158	"4.72E-04, 0.585E-04, 1.19E-04*"	6.56	2.34	77			minimum age of volcanism	MIXTURE OF BIOTITE-HORNBLENDE (NO CHLORITE).	ANALYTICAL ERROR IS +4 AND -2 M.Y.	
460	1	3.11	0.09	whole rock	conventional K-Ar	S21	"4.72E-04, 0.585E-04, 1.19E-04*"	2.496	0.1119	60			age of volcanism		REPLICATE K ANALYSES	
461	1	2.82	0.07	whole rock	conventional K-Ar	S22	"4.72E-04, 0.585E-04, 1.19E-04*"	3	0.1219				age of volcanism		POTASSIUM AND ARGON VALUES ARE AVERAGES OF 14 AND 7 ANALYSES RESPECTIVELY	
462	1	3.54	0.1	whole rock	conventional K-Ar	S28	"4.72E-04, 0.585E-04, 1.19E-04*"	2.161	0.1103	65			age of volcanism		REPLICATE K ANALYSES	
462	2	3.6	0.11	whole rock	conventional K-Ar	S28	"4.72E-04, 0.585E-04, 1.19E-04*"	2.175	0.1129	67			age of volcanism		REPLICATE K ANALYSES	
463	1	126.28	4	muscovite	conventional K-Ar	1(S-EPR4088B/C27)	"4.72E-04, 0.584E-04, 1.19E-04*"	6.42	12.09	42			age of metamorphic crystallization	CHROMIAN MUSCOVITE (FUCHSITE)		
464	1	13.34	5	orthoclase	conventional K-Ar	23(S-EPR5011A)	"4.72E-04, 0.584E-04, 1.19E-04*"	15.1	2.91	18			minimum age of volcanism			
465	1	104.78		biotite	37Ar-41Ar total fusion	53	"4.72E-04, 0.585E-04, 1.19E-04*"	3.85	5.98	41			minimum age of intrusion	"BIOTITE PLUS 30% CHLORITE AND 10% QUARTZ, FELDSPAR, AND HORNBLENDE."	ANALYTICAL ERROR IS +17 AND -2 M.Y.	
466	1	18.14	1	orthoclase	conventional K-Ar	24(S-EPR5011B)	"4.72E-04, 0.584E-04, 1.19E-04*"	14.1	3.7	27			minimum age of volcanism			
467	1	22.58	1	orthoclase	conventional K-Ar	25(S-EPR5011C)	"4.72E-04, 0.584E-04, 1.19E-04*"	9.78	3.2	34			minimum age of intrusion			
468	1	66.67	2	biotite	conventional K-Ar	26(S-EPR5011D)	"4.72E-04, 0.584E-04, 1.19E-04*"	6.75	6.6	45			age of intrusion			
469	1	92.31	1.8	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	11.29	88			age of intrusion			
470	1	13.6	0.4	hornblende	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.643	0.1264	38			age of volcanism			
471	1	22.73		biotite	37Ar-41Ar total fusion	94	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	2.7	63			initial age disturbed by later metamorphism	BIOTITE PLUS 2% CHLORITE.	ANALYTICAL ERROR IS +3 AND -2 M.Y.	
472	1	11.6	0.9	whole rock	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	1.58	0.2655	11			age of volcanism			
473	1	64.91		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.583E-04*"	8.16	7.764							AGE OF MINERALIZATION
474	1	9.43	0.28	biotite	conventional K-Ar	W24	"4.72E-04, 0.585E-04, 1.19E-04*"	8	1.089	70			age of volcanism		"7.98%, 8.02% K2O"	
475	1	9.59	0.37	biotite	conventional K-Ar	W25-NO.1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.915	1.096	64			age of volcanism		"7.91%, 7.92% K2O"	
475	2	9.25	0.27	biotite	conventional K-Ar	W25-NO.2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.835	1.046	73			age of volcanism		"7.81%, 7.86% K2O"	
476	1	13.6	0.33	plagioclase	conventional K-Ar	W26	"4.72E-04, 0.585E-04, 1.19E-04*"	0.4985	0.098	2939			age of volcanism		"0.496%, 0.501% K2O; 0.0983 X E-10, O.0977 X E-10 MOL/GM AR-40"	
477	1	11.1	0.54	plagioclase	conventional K-Ar	W27	"4.72E-04, 0.585E-04, 1.19E-04*"	0.1735	0.0278	16			age of intrusion		"0.173%, 0.174% K2O"	
478	1	14.08	0.41	whole rock	conventional K-Ar	W28	"4.72E-04, 0.585E-04, 1.19E-04*"	0.5605	0.1141	72			age of volcanism		"0.558%, 0.563% K2O"	
479	1	9.56	0.42	whole rock	conventional K-Ar	W29	"4.72E-04, 0.585E-04, 1.19E-04*"	1.72	0.2374	26			age of volcanism		"1.72%, 1.72% K2O"	
480	1	39.33		biotite	37Ar-41Ar total fusion	145	"4.72E-04, 0.585E-04, 1.19E-04*"	4.35	2.49	61			minimum age of intrusion	A MIXTURE OF BIOTITE AND HORNBLENDE WITH 5% CHLORITE.	ANALYTICAL ERROR IS +6 AND -2 M.Y.	
481	1	22.46		biotite	37Ar-41Ar total fusion	146	"4.72E-04, 0.585E-04, 1.19E-04*"	7.1	2.31	53			minimum age of intrusion	BIOTITE PLUS 4% CHLORITE AND 5% HORNBLENDE.	ANALYTICAL ERROR IS +3 AND -2 M.Y.	
482	1	9	0.4	whole rock	conventional K-Ar	UNDER W29	"4.72E-04, 0.585E-04, 1.19E-04*"	1.995	0.2592	29			age of volcanism		"1.99%, 2.00% K2O"	"AGE RECALCULATED FROM DATA GIVEN IN DALRYMPLE, G.B, 1964, CALIF. UNIV. PUBL. GEOL. SCI. 47"
483	1	6.28	0.18	whole rock	conventional K-Ar	A1	"4.72E-04, 0.585E-04, 1.19E-04*"	1.52	0.1377	55			age of volcanism		"1.51%, 1.53% K2O"	
484	1	23.97		biotite	37Ar-41Ar total fusion	161	"4.72E-04, 0.585E-04, 1.19E-04*"	5.47	1.9	36			minimum age of intrusion	BIOTITE (NO CHLORITE) PLUS 5% HORNBLENDE.	ANALYTICAL ERROR IS +4 AND -2 M.Y.	
485	1	19.16		biotite	37Ar-41Ar total fusion	175	"4.72E-04, 0.585E-04, 1.19E-04*"	8.87	2.46	65			minimum age of intrusion	BIOTITE PLUS 1% MONTMORILLONITE.	ANALYTICAL ERROR IS +3 AND -2 M.Y.	
486	1	127.62		biotite	37Ar-41Ar total fusion	180	"4.72E-04, 0.585E-04, 1.19E-04*"	5.41	10.3	19			age meaning uncertain (geologic factors)	BIOTITE PLUS 30% CHLORITE.	ANALYTICAL ERROR IS +19 AND-6 M.Y.	
486	2	107.29		biotite	37Ar-41Ar total fusion	180	"4.72E-04, 0.585E-04, 1.19E-04*"	5.41	8.61	35			age meaning uncertain (geologic factors)	BIOTITE PLUS 30% CHLORITE.	ANALYTICAL ERROR IS +16 AND -5 M.Y.	
487	1	4.25	0.12	whole rock	conventional K-Ar	A2	"4.72E-04, 0.585E-04, 1.19E-04*"	1.085	0.0664	45			age of volcanism		"1.08%, 1.09% K2O"	
488	1	50.14		biotite	37Ar-41Ar total fusion	206	"4.72E-04, 0.585E-04, 1.19E-04*"	6.83	5	24			minimum age of intrusion	BIOTITE (NO CHLORITE) PLUS 15% HORNBLENDE.	ANALYTICAL ERROR IS +7 AND -2 M.Y.	
488	2	40.82		biotite	37Ar-41Ar total fusion	206	"4.72E-04, 0.585E-04, 1.19E-04*"	6.83	4.06	71			age not evaluated	BIOTITE (NO CHLORITE) PLUS 15% HORNBLENDE.	ANALYTICAL ERROR IS +6 AND -2 M.Y.	
489	1	4.14	0.12	whole rock	conventional K-Ar	A3	"4.72E-04, 0.585E-04, 1.19E-04*"	0.975	0.0582	42			age of volcanism		"0.973%, 0.977% K2O"	
492	1	2303	60	biotite	conventional K-Ar	GMYB-5	"4.8E-04, 0.58E-04*"	7.64	512.9	92		Giletti (1968)	minimum age of intrusion	SMALL BOOKS OF BIOTITE INTERGROWN WITH PLAGIOCLASE; MINOR CHLORITIZATION	LISTED DATA ARE AVERAGES OF REPLICATE DETERMINATIONS	DISPARITY WITH RB-SR AGE PROBABLY DUE TO ARGON LOSS DURING ALTERATION
493	1	278	14	feldspar	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	12.43						PROBABLY MICROCLINE		ANALYZED MINERAL DOES NOT QUANTITATIVELY RETAIN ARGON
493	2	332	17	mica grop	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	10.47					minimum age of intrusion	PROBABLY MUSCOVITE		
494	1	231	12	microcline	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	13.01								MICROCLINE DOES NOT QUANTITATIVELY RETAIN ARGON
494	2	242	12	microcline	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	13.01								MICROCLINE DOES NOT QUANTITATIVELY RETAIN ARGON
494	3	329	16	mica grop	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	9.93					age not evaluated	PROBABLY MUSCOVITE		
494	4	346	17	mica grop	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	9.93					minimum age of intrusion	PROBABLY MUSCOVITE)		
495	1	248	12	feldspar	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	12.72						PROBABLY MICROCLINE		ANALYZED MINERAL DOES NOT QUANTITATIVELY RETAIN ARGON
495	2	338	17	mica grop	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	10.81					minimum age of intrusion	PROBABLY MUSCOVITE		
496	1	290	14	feldspar	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	13.97						PROBABLY MICROCLINE		ANALYZED MINERAL DOES NOT QUANTITATIVELY RETAIN ARGON
496	2	293	15	feldspar	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	13.97						PROBABLY MICROCLINE		ANALYZED MATERIAL DOES NOT QUANTITATIVELY RETAIN ARGON
497	1	402	20	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	4.2					initial age disturbed by later metamorphism			
498	1	378	19	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	5.26					initial age disturbed by later metamorphism			
499	1	378	19	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	2.78					initial age disturbed by later metamorphism			
500	1	368	18	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	1.63					initial age disturbed by later metamorphism			
501	1	260	13	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	5.91					initial age disturbed by later metamorphism			
502	1	413	21	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	4.78					initial age disturbed by later metamorphism			
502	2	394	20	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	4.78					initial age disturbed by later metamorphism			
503	1	287	14	feldspar	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	12.95						PROBABLY MICROCLINE		ANALYZED MINERAL DOES NOT QUANTITATIVELY RETAIN ARGON
503	2	296	15	feldspar	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	12.95						PROBABLY MICROCLINE		ANALYZED MINERAL DOES NOT QUANTITATIVELY RETAIN ARGON
503	3	555	28	mica grop	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	3.75					minimum age of intrusion			
503	4	535	26	mica grop	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	3.75					minimum age of intrusion			
504	1	535	27	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	5.16					minimum age of intrusion	MAINLY FELDSPAR AND QUARTZ		
505	1	535	27	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	8.9					minimum age of intrusion	PROBABLY FELDSPAR		
506	1	1110	56	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	1.58					age of metamorphic crystallization			
507	1	655	33	whole rock	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	4.89					age meaning uncertain (geologic factors)	PROBABLY FELDSPAR AND QUARTZ		
508	1	1360	68	lepidolite	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	9.93					minimum age of intrusion			
508	2	1390	70	lepidolite	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	9.93					minimum age of intrusion			
508	3	980	49	microcline	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	14.24								MICROCLINE DOES NOT QUANTITATIVELY RETAIN ARGON
509	1	1430	72	microcline	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	11.4								MICROCLINE DOES NOT QUANTITATIVELY RETAIN ARGON
510	1	835	42	feldspar	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	12.48						PROBABLY MICROCLINE		ANALYZED MINERAL DOES NOT QUANTITATIVELY RETAIN ARGON
510	2	855	43	feldspar	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	12.48						PROBABLY MICROCLINE		ANALYZED MINERAL DOES NOT QUANTITATIVELY RETAIN ARGON
510	3	1360	68	lepidolite	conventional K-Ar	(NOT GIVEN)	"4.76E-04, 0.586E-04"	9.3					minimum age of intrusion			
511	1	95.7		sanidine	conventional K-Ar	(NOT GIVEN)	no decay constants given*						age of volcanism		NO ANALYTICAL DATA GIVEN; CALCULATED AGE IS THE AVERAGE OF 95.3 AND 96.1 M.Y.	
512	1	61		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of volcanism		SEE RECORD 511 FOR DECAY CONSTANTS	
512	2	62.7		sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism			
513	1	1010		whole rock	conventional K-Ar	BT-1	no decay constants given					Baadsgaard and Mueller (1973)	initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	SAMPLE TAKEN WITHIN A FEW METERS OF TERTIARY STOCK
514	1	1500		whole rock	conventional K-Ar	BT-8	no decay constants given					Baadsgaard and Mueller (1973)	age of intrusion		NO ANALYTICAL DATA GIVEN	
515	1	128	4	biotite	conventional K-Ar	KA81	"4.72E-04, 0.584E-04, 1.19E-04"	7.53		91		Curtis and others (1958)	age of intrusion			
516	1	136	4	biotite	conventional K-Ar	KA-97	"4.72E-04, 0.584E-04, 1.19E-04"	8.48		94		Curtis and others (1958)	age of intrusion			
517	1	10.7	0.3	biotite	conventional K-Ar	KA-132	"4.72E-04, 0.584E-04, 1.19E-04"	7.37		34			age of volcanism			
518	1	15.2	0.5	biotite	conventional K-Ar	KA 161	"4.72E-04, 0.584E-04, 1.19E-04"	5.06		9		Evernden and others (1964)	age of volcanism			
519	1	32	1	biotite	conventional K-Ar	KA-175	"4.72E-04, 0.584E-04, 1.19E-04"	7.69		50			age of volcanism			
520	1	59	2	biotite	conventional K-Ar	KA-176	"4.72E-04, 0.584E-04, 1.19E-04"	3.05		47			age of volcanism			
521	1	81	2	biotite	conventional K-Ar	KA-177	"4.72E-04, 0.584E-04, 1.19E-04"	8.38		89			"sample contains excess radiogenic argon, age is too old"			
522	1	96	3	biotite	conventional K-Ar	KA-404	"4.72E-04, 0.584E-04, 1.19E-04"	7.41		91		Curtis and others (1958)	age of volcanism			
523	1	12	0.4	biotite	conventional K-Ar	KA-414	"4.72E-04, 0.584E-04, 1.19E-04"	7.67		44		Evernden and others (1964)	age of volcanism			
524	1	15.2	0.5	biotite	conventional K-Ar	KA-449	"4.72E-04, 0.584E-04, 1.19E-04"	5.82		60		Evernden and others (1964)	age of volcanism			
525	1	169	5	biotite	conventional K-Ar	KA-431	"4.72E-04, 0.584E-04, 1.19E-04"	4.37		81			age of intrusion	A BIOTITE-HORNBLENDE CONCENTRATE	"LOW POTASSIUM VALUE DUE TO PRESENCE OF HORNBLENDE IN SAMPLE, NOT TO CHLORITIZED MICA"	
526	1	33.1	1	sanidine	conventional K-Ar	KA-483	"4.72E-04, 0.584E-04, 1.19E-04"	5.7		79		Evernden and others (1964)	age of volcanism			
527	1	421	12	biotite	conventional K-Ar	KA-462	"4.72E-04, 0.584E-04, 1.19E-04"	7.51		77			age of volcanism			"H. FAUL, DONOR OF THE BIOTITE SEPARATE, OBTAINED A K-AR AGE OF 420 M.Y. FOR THIS SAMPLE"
528	1	31.5	0.9	glauconite	conventional K-Ar	KA-147	"4.72E-04, 0.584E-04, 1.19E-04"	6.55		51						"AGE TOO YOUNG, PROBABLY DUE TO GEOTHERMAL AND/OR DIAGENETIC FACTORS"
529	1	70	2	glauconite	conventional K-Ar	KA-152	"4.72E-04, 0.584E-04, 1.19E-04"	5.31		35			age of volcanism			
529	2	69	2	glauconite	conventional K-Ar	KA-152	"4.72E-04, 0.584E-04, 1.19E-04"	6.67		73			age of volcanism			
530	1	70	2	glauconite	conventional K-Ar	KA-152	"4.72E-04, 0.584E-04, 1.19E-04"	5.31		35			age of volcanism			
530	2	69	2	glauconite	conventional K-Ar	KA-152	"4.72E-04, 0.584E-04, 1.19E-04"	6.67		73			age of volcanism			
531	1	42	1	glauconite	conventional K-Ar	KA-153	"4.72E-04, 0.584E-04, 1.19E-04"	7.01		82			minimum age of volcanism			
532	1	36	1	glauconite	conventional K-Ar	KA-154	"4.72E-04, 0.584E-04, 1.19E-04"	6.02		42						"AGE IS TOO YOUNG, PROBABLY DUE TO GEOTHERMAL AND/OR DIAGENETIC FACTORS"
533	1	25	1	glauconite	conventional K-Ar	KA-160	"4.72E-04, 0.584E-04, 1.19E-04"	6.48		48						"AGE IS TOOYOUNG, PROBABLY DUE TO GEOTHERMAL AND/OR DIAGENETIC FACTORS"
534	1	38	1	glauconite	conventional K-Ar	KA-162	"4.72E-04, 0.584E-04, 1.19E-04"	5.58		75						AGE IS TOO YOUNG
535	1	39	1	glauconite	conventional K-Ar	KA-165	"4.72E-04, 0.584E-04, 1.19E-04"	7.49		73						AGE IS TOO YOUNG
536	1	39	1	glauconite	conventional K-Ar	KA-166	"4.72E-04, 0.584E-04, 1.19E-04"	4.64		61						AGE IS TOO YOUNG
537	1	39	1	glauconite	conventional K-Ar	KA-166	"4.72E-04, 0.584E-04, 1.19E-04"	4.64		61						AGE IS TOO YOUNG
538	1	46	1	glauconite	conventional K-Ar	KA-170	"4.72E-04, 0.584E-04, 1.19E-04"	4.64		53						"AGE IS TOO YOUNG, PROBABLY DUE TO GEOTHERMAL AND/OR DIAGENETIC FACTORS"
539	1	23		glauconite	conventional K-Ar	KA-171	"4.72E-04, 0.584E-04, 1.19E-04"	6.13		34			minimum age of volcanism			
540	1	58	2	glauconite	conventional K-Ar	KA-172	"4.72E-04, 0.584E-04, 1.19E-04"	4.76		61			age of volcanism			
541	1	46	1	glauconite	conventional K-Ar	KA-178	"4.72E-04, 0.584E-04, 1.19E-04"	5.95		30						"AGE IS TOO YOUNG, PROBABLY DUE TO GEOTHERMAL AND/OR DIAGENETIC FACTORS"
542	1	43	1	glauconite	conventional K-Ar	KA-189	"4.72E-04, 0.584E-04, 1.19E-04"	6.53		63			age of volcanism			
543	1	5.2	0.2	glauconite	conventional K-Ar	KA-192	"4.72E-04, 0.584E-04, 1.19E-04"	6.02		7			age of volcanism			
544	1	246	7	whole rock	conventional K-Ar	KA-262	"4.72E-04, 0.584E-04, 1.19E-04"	6.11		68			age meaning uncertain (analysis questionable and geologic factors			
545	1	27	1	glauconite	conventional K-Ar	KA-265	"4.72E-04, 0.584E-04, 1.19E-04"	6.22		67						"AGE IS TOO YOUNG, PROBABLY DUE TO GEOTHERMAL AND/OR DIAGENETIC FACTORS"
546	1	18	1	glauconite	conventional K-Ar	KA-267	"4.72E-04, 0.584E-04, 1.19E-04"	6.3		55						"AGE IS TOO YOUNG, PROBABLY DUE TO DIAGENETIC AND/OR GEOTHERMAL FACTORS"
547	1	33	1	glauconite	conventional K-Ar	KA-285	"4.72E-04, 0.584E-04, 1.19E-04"	5.51		61						"AGE IS TOO YOUNG, PROBABLY DUE TO GEOTHERMAL AND/OR DIAGENETIC FACTORS"
548	1	295	9	whole rock	conventional K-Ar	KA-337	"4.72E-04, 0.584E-04, 1.19E-04"	3.45		68			age of volcanism			
549	1	305	9	whole rock	conventional K-Ar	KA-338	"4.72E-04, 0.584E-04, 1.19E-04"	2.48		66						AGE IS TOO YOUNG.
550	1	363	11	whole rock	conventional K-Ar	KA-339	"4.72E-04, 0.584E-04, 1.19E-04"	6.38		72						AGE IS TOO YOUNG
551	1	347	10	whole rock	conventional K-Ar	KA-340	"4.72E-04, 0.584E-04, 1.19E-04"	5.05		72						AGE IS TOO YOUNG
552	1	284	9	whole rock	conventional K-Ar	KA-341	"4.72E-04, 0.584E-04, 1.19E-04"	6.79		63						AGE IS TOO YOUNG
553	1	267	8	whole rock	conventional K-Ar	KA-342	"4.72E-04, 0.584E-04, 1.19E-04"	6.83		47						AGE IS TOO YOUNG
554	1	485	15	whole rock	conventional K-Ar	KA-343	"4.72E-04, 0.584E-04, 1.19E-04"	3.36		46			"sample contains inherited material, age is too old"			
554	2	490	15	illite	conventional K-Ar	KA-343A	"4.72E-04, 0.584E-04, 1.19E-04"	3.4		77			"sample contains inherited material, age is too old"	MATERIAL LESS THAT 74 MICRON  DIAMETER WAS ANALYZED		
555	1	457	14	whole rock	conventional K-Ar	KA-344	"4.72E-04, 0.584E-04, 1.19E-04"	7.04		87						AGE IS TOO YOUNG
556	1	52	2	glauconite	conventional K-Ar	KA-438	"4.72E-04, 0.584E-04, 1.19E-04"	5.37		77			age of volcanism			
557	1	52	2	glauconite	conventional K-Ar	KA-438	"4.72E-04, 0.584E-04, 1.19E-04"	5.37		77			age of volcanism			
558	1	340.77	17	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.75	58.05	97			minimum age of intrusion	"FRESH, OBTAINED WHERE NO URANINITE OCCURS"		
559	1	1552.1	80	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.1	357.8	99			age of intrusion			
559	2	1388.74	70	lepidolite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.97	300.2	98			minimum age of intrusion			
560	1	1302.75	65	lepidolite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.28	255.2	98			age not evaluated		VALUES SHOWN ARE AVERAGE OF 5 ANALYSES	
561	1	1257.52	60	muscovite	conventional K-Ar	C	"4.72E-04, 0.585E-04, 1.19E-04*"	10.8	282.7	100			age not evaluated			
561	2	1267.37	60	muscovite	conventional K-Ar	D	"4.72E-04, 0.585E-04, 1.19E-04*"	10.4	275.2	100			age not evaluated			
562	1	1368.79	70	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.86	320.3	99			minimum age of intrusion	PRIMARY		
563	1	1291.85	60	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.39	255.2	69			minimum age of intrusion	BIOTITE SLIGHTLY LEACHED AND CONTAINS ROD-LIKE INCLUSIONS		
564	1	1066.76	50	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.42	92.57	94			minimum age of intrusion	NOT CHLORITIZED		
565	1	984.82	50	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.58	124.1	95			minimum age of intrusion			
566	1	178.39	8	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.62	20.57	95			age not evaluated			
567	1	140.02	7	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.9	16.56	84			age not evaluated	"RAGGED GRAINS, PARTIALLY CHLORITIZED, BUT GOOD SAMPLE OBTAINED BY MAGNETIC SEPARATION"		
568	1	469.19	20	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.8	37.03	81			minimum age of intrusion			
570	1	2237.43	110	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.53	608	99			age not evaluated	PURPLE		
571	1	1387.11	70	lepidolite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.07	302.7	99			minimum age of intrusion			
572	1	1125.99	60	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.76	242.2	99			age not evaluated	PURPLE		
573	1	1289.97	60	lepidolite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.87	267.7	94			age not evaluated			
574	1	91.57	4	lepidolite	conventional K-Ar	A170	"4.72E-04, 0.585E-04, 1.19E-04*"	10.36	14.01	86			minimum age of intrusion			
575	1	1303.13	65	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	243.2	97			age of intrusion			
576	1	1310.18	65	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.16	226.2	99			age of intrusion			
577	1	1344.09	70	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.33	239.4	97			age of intrusion	BIOTITE IS CURVED AND HAS A RUSTY APPEARANCE		
578	1	1175.15	60	biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04*"	9.38	223.7	95			minimum age of intrusion	MODERATELY CHLORITIZED		
578	2	1218.19	60	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.8	195.4	92			minimum age of intrusion			
579	1	1066.11	50	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.34	153.6	98			age of intrusion	PARTIALLY CHLORITIZED		
580	1	676.05	35	biotite	conventional K-Ar	ND1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.48	88.32				initial age disturbed by weathering		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
581	1	1750.03	85	biotite	conventional K-Ar	ND4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	376.1				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
585	1	1650.94	80	muscovite	conventional K-Ar	SD4	"4.72E-04, 0.585E-04, 1.19E-04*"	9.94	386.5				age of intrusion	RADIOGENIC ARGON WAS BETWEEN 85-100%		
586	1	1687.42	85	muscovite	conventional K-Ar	SD5	"4.72E-04, 0.585E-04, 1.19E-04*"	10.08	405.3				age of intrusion		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
589	1	1467.02	75	whole rock	conventional K-Ar	SD9	"4.72E-04, 0.585E-04, 1.19E-04*"	2.41	78.56				"minimum age of metamorphic crystallization, initial age disturbed by later metamorphism"	RADIOGENIC ARGON WAS BETWEEN 85-100%	RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
593	1	2392.28	120	biotite	conventional K-Ar	SD13	"4.72E-04, 0.585E-04, 1.19E-04*"	8.08	580.5				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
597	1	1687.45	85	whole rock	conventional K-Ar	SD17	"4.72E-04, 0.585E-04, 1.19E-04*"	3.82	153.6				age of intrusion		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
600	1	1401.34	70	biotite	conventional K-Ar	CO2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.94	272.7				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
604	1	1376.5	70	biotite	conventional K-Ar	NR1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.3	276.5				initial age disturbed by later metamorphism			
605	1	1192.05	60	whole rock	conventional K-Ar	NR3	"4.72E-04, 0.585E-04, 1.19E-04*"	3.56	86.57				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
607	1	1229	60	whole rock	conventional K-Ar	NR5	"4.72E-04, 0.585E-04, 1.19E-04*"	2.96	75.06				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
611	1	891.17	45	biotite	conventional K-Ar	NR9	"4.72E-04, 0.585E-04, 1.19E-04*"	2.82	46.79				initial age disturbed by weathering		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
612	1	996.41	50	whole rock	conventional K-Ar	NR10	"4.72E-04, 0.585E-04, 1.19E-04*"	0.49	9.383				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
613	1	1185.2	60	biotite	conventional K-Ar	NR12	"4.72E-04, 0.585E-04, 1.19E-04*"	8.99	216.9				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
615	1	1183.28	60	biotite	conventional K-Ar	NR14	"4.72E-04, 0.585E-04, 1.19E-04*"	8.96	215.7				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
616	1	1314	65	whole rock	conventional K-Ar	NR15	"4.72E-04, 0.585E-04, 1.19E-04*"	1.51	42.03				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
617	1	1291.39	65	whole rock	conventional K-Ar	NR16	"4.72E-04, 0.585E-04, 1.19E-04*"	0.7	19.015				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
618	1	1287.04	65	whole rock	conventional K-Ar	NR17	"4.72E-04, 0.585E-04, 1.19E-04*"	2.48	67.05				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
619	1	1186.67	60	biotite	conventional K-Ar	NR18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.83	213.4				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
620	1	672.23	35	whole rock	conventional K-Ar	NR19	"4.72E-04, 0.585E-04, 1.19E-04*"	2.24	26.27				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
622	1	1363.46	70	biotite	conventional K-Ar	NR22	"4.72E-04, 0.585E-04, 1.19E-04*"	5.97	175.1				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
626	1	993.57	50	whole rock	conventional K-Ar	NR26	"4.72E-04, 0.585E-04, 1.19E-04*"	0.32	6.105				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
627	1	1170.13	60	biotite	conventional K-Ar	NR27	"4.72E-04, 0.585E-04, 1.19E-04*"	8.76	207.7				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
628	1	1166.46	60	biotite	conventional K-Ar	WI1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	205.4				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
631	1	1424.62	70	muscovite	conventional K-Ar	WI4	"4.72E-04, 0.585E-04, 1.19E-04*"	10.51	328.3				age meaning uncertain (geologic factors)		RADIOGENIC ARGON WAS BETWEEN 85 AND 100%	
632	1	1510.49	75	biotite	conventional K-Ar	MO1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.34	317.8				minimum age of intrusion	RADIOGENIC-ARGON WAS BETWEEN 69-99%	RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
634	1	1244.69	60	whole rock	conventional K-Ar	MO3	"4.72E-04, 0.585E-04, 1.19E-04*"	1.91	49.29				"minimum age of intrusion, initial age disturbed by later metamorphism"		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
635	1	1403.24	70	muscovite	conventional K-Ar	MO4	"4.72E-04, 0.585E-04, 1.19E-04*"	10.48	320.3				minimum age of intrusion		RADIOGONIC ARGON WAS BETWEEN 69 AND 99%	
636	1	1416.07	70	biotite	conventional K-Ar	MO5	"4.72E-04, 0.585E-04, 1.19E-04*"	9.21	285.2				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
641	1	1244.04	60	biotite	conventional K-Ar	MO10	"4.72E-04, 0.585E-04, 1.19E-04*"	9.14	235.7				minimum age of intrusion		RADIOGENIC-ARGON WAS BETWEEN 69 AND 99%	
642	1	1265.54	60	muscovite	conventional K-Ar	MO11	"4.72E-04, 0.585E-04, 1.19E-04*"	10.97	289.7				age of intrusion		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
647	1	1340.62	65	biotite	conventional K-Ar	MO16	"4.72E-04, 0.585E-04, 1.19E-04*"	8.64	247.4				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%.	
648	1	1284.73	65	biotite	conventional K-Ar	MO17	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	238.4				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%.	
649	1	1360.25	70	muscovite	conventional K-Ar	MO18	"4.72E-04, 0.585E-04, 1.19E-04*"	10.28	300.5				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%.	
650	1	1092.56	60	whole rock	conventional K-Ar	KA1	"4.72E-04, 0.585E-04, 1.19E-04*"	1.47	31.78						RADIOGENIC ARGON WAS BETWEEN 69 AND 99%.	
654	1	1211.83	60	biotite	conventional K-Ar	KA5	"4.72E-04, 0.585E-04, 1.19E-04*"	8.19	203.7				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
663	1	1261.99	65	whole rock	conventional K-Ar	KA21	"4.72E-04, 0.585E-04, 1.19E-04*"	0.37	9.733				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%.	
691	1	508.33	25	biotite	conventional K-Ar	OK20	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	74.56				age of intrusion		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
693	1	1240.98	60	hornblende	conventional K-Ar	TX2	"4.72E-04, 0.585E-04, 1.19E-04*"	0.7	17.99						RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
698	1	1209.58	60	plagioclase	conventional K-Ar	TX9	"4.72E-04, 0.585E-04, 1.19E-04*"	0.12	2.977				age of intrusion		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
701	1	1010	50	biotite	conventional K-Ar	TX15	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	160.6				age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
704	1	371.75	20	biotite	conventional K-Ar	TX22	"4.72E-04, 0.585E-04, 1.19E-04*"	7.24	43.03				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
707	1	1332.94	65	muscovite	conventional K-Ar	NM2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.95	254.2				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
708	1	1357.2	70	biotite	conventional K-Ar	NM3	"4.72E-04, 0.585E-04, 1.19E-04*"	6.5	189.4				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
710	1	1357.65	70	biotite	conventional K-Ar	NM5	"4.72E-04, 0.585E-04, 1.19E-04*"	6.84	199.4				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
711	1	1376.15	70	muscovite	conventional K-Ar	NM6	"4.72E-04, 0.585E-04, 1.19E-04*"	8.94	265.7				age of intrusion		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
713	1	1406.69	70	biotite	conventional K-Ar	NM8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.94	274.2				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
715	1	1376.55	70	biotite	conventional K-Ar	NM10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.98	267				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
716	1	1386.7	70	biotite	conventional K-Ar	NM11	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	256				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
718	1	1348.29	65	muscovite	conventional K-Ar	NM15	"4.72E-04, 0.585E-04, 1.19E-04*"	8.65	249.7				age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
720	1	1196.55	60	biotite	conventional K-Ar	NM19	"4.72E-04, 0.585E-04, 1.19E-04*"	7.72	188.7				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
725	1	1275.78	65	biotite	conventional K-Ar	CO9	"4.72E-04, 0.585E-04, 1.19E-04*"	9.2	245.7				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
729	1	1374.15	70	biotite	conventional K-Ar	UT2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	243.2				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
730	1	297.77	15	biotite	conventional K-Ar	AL1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.91	41.53				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
731	1	491.02	25	whole rock	conventional K-Ar	FL1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.93	7.556				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 69 AND 99%	
734	1	997.27	50	biotite	conventional K-Ar	IA3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.68	166.4				initial age disturbed by later metamorphism		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	REHEATED BY KEWEENAWAN IGNEOUS ACTIVITY
735	1	736.33	35	biotite	conventional K-Ar	IA4	"4.72E-04, 0.585E-04, 1.19E-04*"	6.25	81.82				"age meaning uncertain (geologic factors), initial age disturbed by later metamorphism"		RADIOGENIC ARGON WAS BETWEEN 93 AAD 99%	REHEATED BY KEWEENAWAN IGNEOUS ACTIVITY
736	1	1296.22	65	biotite	conventional K-Ar	IA5	"4.72E-04, 0.585E-04, 1.19E-04*"	8.54	233.2				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
737	1	1416	70	biotite	conventional K-Ar	IA6	"4.72E-04, 0.585E-04, 1.19E-04*"	7.57	234.4				age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AAD 99%	
738	1	1291.8	65	biotite	conventional K-Ar	IA7	"4.72E-04, 0.585E-04, 1.19E-04*"	9.42	256				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
739	1	1295.54	65	muscovite	conventional K-Ar	IA8	"4.72E-04, 0.585E-04, 1.19E-04*"	9.84	268.5				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
739	2	1226.8	60	biotite	conventional K-Ar	IA8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.97	226.9				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
741	1	1385.53	70	biotite	conventional K-Ar	IL1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.27	278.2				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
742	1	1215.59	60	biotite	conventional K-Ar	IL2	"4.72E-04, 0.585E-04, 1.19E-04*"	6.77	169.1				age not evaluated		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
743	1	654.67	30	biotite	conventional K-Ar	IL3	"4.72E-04, 0.585E-04, 1.19E-04*"	6.76	76.81				age meaning uncertain (geologic factors)		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
745	1	1307.73	65	biotite	conventional K-Ar	IL5	"4.72E-04, 0.585E-04, 1.19E-04*"	7.61	210.4				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
746	1	1404.11	70	biotite	conventional K-Ar	IL6	"4.72E-04, 0.585E-04, 1.19E-04*"	8.98	274.7				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
747	1	1354.69	70	biotite	conventional K-Ar	IL7	"4.72E-04, 0.585E-04, 1.19E-04*"	8.42	244.7				minimum age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%.	
752	1	1102.27	55	biotite	conventional K-Ar	MI1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.57	165.6				age of intrusion		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	PROBABLY EQUIVALENT TO DULUTH GABBRO COMPLEX
753	1	985.16	50	biotite	conventional K-Ar	MI2	"4.72E-04, 0.585E-04, 1.19E-04*"	9.28	175.1				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
756	1	974.58	50	biotite	conventional K-Ar	OH1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.97	166.9				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
757	1	947.6	45	biotite	conventional K-Ar	OM2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.66	155.4				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
758	1	947.52	45	biotite	conventional K-Ar	OH3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.02	143.9				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
762	1	954.72	45	biotite	conventional K-Ar	OH8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.45	153.1				age of metamorphic crystallization	BIOTITE FROM 4190-4215 FOOT INTERVAL	RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
762	2	893.4	45	muscovite	conventional K-Ar	OH8	"4.72E-04, 0.585E-04, 1.19E-04*"	10.73	178.6				minimum age of metamorphic crystallization	MUSCOVITE FROM 4190-4210 AND 4280-4285 FOOT INTERVALS	RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
763	1	989.3	50	biotite	conventional K-Ar	OH9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.07	153.1				age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
763	2	942.8	45	muscovite	conventional K-Ar	OH9	"4.72E-04, 0.585E-04, 1.19E-04*"	9.99	178.1				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
764	1	999	50	biotite	conventional K-Ar	OH10	"4.72E-04, 0.585E-04, 1.19E-04*"	7.76	149.1				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
765	1	864.19	45	biotite	conventional K-Ar	WV1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.06	144.6				minimum age of metamorphic crystallization		RADIOGENIC ARGON WAS BETWEEN 93 AND 99%	
766	1	75.14		biotite	conventional K-Ar	KA-137	"4.72E-04, 0.577E-04*"	8.5	9.39	64		Evernden and others (1957)	age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
767	1	81.4		biotite	conventional K-Ar	KA-177	"4.72E-04, 0.577E-04*"	8.2	9.83	53		Evernden and others (1957)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
768	1	80.27		biotite	conventional K-Ar	KA-133	"4.72E-04, 0.577E-04*"	7.1	8.39	59		Evernden and others (1957)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
769	1	81.92		biotite	conventional K-Ar	KA-135	"4.72E-04, 0.577E-04*"	6.73	8.12	37		Evernden and others (1957)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
770	1	82.14		biotite	conventional K-Ar	KA-73	"4.72E-04, 0.577E-04*"	7.72	9.34	62		Evernden and others (1957)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
771	1	85.36		biotite	conventional K-Ar	KA-100	"4.72E-04, 0.577E-04*"	9.79	12.32	79		Evernden and others (1957)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
772	1	86.38		biotite	conventional K-Ar	KA-68	"4.72E-04, 0.577E-04*"	7.96	10.14	91		Evernden and others (1957)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
773	1	89.98		biotite	conventional K-Ar	KA-72	"4.72E-04, 0.577E-04*"	9.14	12.14	83		Evernden and others (1957)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
774	1	90.65		biotite	conventional K-Ar	KA-71	"4.72E-04, 0.577E-04*"	9.1	12.18	92		Evernden and others (1957)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
775	1	93.04		biotite	conventional K-Ar	KA-67	"4.72E-04, 0.577E-04*"	8.54	11.74	87		Evernden and others (1957)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
776	1	82.23		biotite	conventional K-Ar	KA-185	"4.72E-04, 0.577E-04*"	6.53	7.91	64			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
777	1	81.88		biotite	conventional K-Ar	KA-184	"4.72E-04, 0.577E-04*"	7.96	9.6	92			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
778	1	81.6		biotite	conventional K-Ar	KA-94	"4.72E-04, 0.577E-04"	8.91	9.6	44			age of intrusion		(*)	AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
779	1	90.04		biotite	conventional K-Ar	KA-92	"4.72E-04, 0.577E-04*"	6.41	8.52	35			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
780	1	139.59		biotite	conventional K-Ar	KA-120	"4.72E-04, 0.577E-04*"	8.38	17.51	89			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
781	1	127.41		muscovite	conventional K-Ar	KA-102	"4.72E-04, 0.577E-04*"	9.36	17.79	67			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
781	2	128.2		biotite	conventional K-Ar	KA-103	"4.72E-04, 0.577E-04*"	7.58	14.5	87			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
782	1	131.22		biotite	conventional K-Ar	KA-98	"4.72E-04, 0.577E-04*"	7.43	14.56	84			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
783	1	81.33		biotite	conventional K-Ar	KA-93	"4.72E-04, 0.577E-04*"	7.99	9.57	70			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
784	1	88.38		biotite	conventional K-Ar	KA-78	"4.72E-04, 0.577E-04*"	3.42	4.46	37				"DETRITAL BIOTITE, PROBABLY CHLORITIC"		AGE IS MEAN AGE OF SOURCE ROCKS FOR THE SEDIMENTS. AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
785	1	103.81		biotite	conventional K-Ar	KA-204	"4.72E-04, 0.577E-04*"	2.6	4	55				"DETRITAL BIOTITE, PROBABLY CHLORITIC"		AGE IS MEAN AGE OF SOURCE ROCKS FOR THE SEDIMENTS. AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
786	1	140.82	12	biotite	conventional K-Ar	KA-199	"4.72E-04, 0.577E-04*"	1.75	3.69	56				"DETRITAL BIOTITE, PROBABLY CHLORITIC"		AGE IS MEAN AGE OF SOURCE ROCKS FOR THE SEDIMENTS. AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
787	1	88.27		biotite	conventional K-Ar	KA-74	"4.72E-04, 0.577E-04*"	7.01	9.13	84			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
788	1	139.22		biotite	conventional K-Ar	KA-97	"4.72E-04, 0.577E-04*"	8.48	17.67	94		Curtis and others (1958)	age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
789	1	130.49		biotite	conventional K-Ar	KA-81	"4.72E-04, 0.577E-04*"	7.53	14.67	92		Evernden and others (1961)	age of intrusion	BIOTITE SOMEWHAT CHLORITIZED		AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
790	1	75.14	1.5	biotite	conventional K-Ar	KA-137	"4.72E-04, 0.577E-04*"	8.5	9.39	64		Curtis and others (1958)	age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
791	1	81.4	1.7	biotite	conventional K-Ar	KA-177	"4.72E-04, 0.577E-04*"	8.2	9.83	53		Curtis and others (1958)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
792	1	80.27	1.6	biotite	conventional K-Ar	KA-133	"4.72E-04, 0.577E-04*"	7.1	8.39	59		Curtis and others (1958)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
793	1	81.92	1.7	biotite	conventional K-Ar	KA-135	"4.72E-04, 0.577E-04*"	6.73	8.12	37		Curtis and others (1958)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
794	1	82.14	1.7	biotite	conventional K-Ar	KA-73	"4.72E-04, 0.577E-04*"	7.72	9.34	62		Curtis and others (1958)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
794	2	81.97	1.7	biotite	conventional K-Ar	KA-73R	"4.72E-04, 0.577E-04*"	7.71	9.309	68			age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
795	1	85.36	1.7	biotite	conventional K-Ar	KA-100	"4.72E-04, 0.577E-04*"	9.79	12.32	79		Curtis and others (1958)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
796	1	86.38	1.7	biotite	conventional K-Ar	KA-68	"4.72E-04, 0.577E-04*"	7.96	10.14	91		Curtis and others (1958)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
797	1	89.98	1.8	biotite	conventional K-Ar	KA-72	"4.72E-04, 0.577E-04*"	9.14	12.14	83		Curtis and others (1958)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
798	1	90.65	1.9	biotite	conventional K-Ar	KA-71	"4.72E-04, 0.577E-04*"	9.1	12.18	92		Curtis and others (1958)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
799	1	93.04	1.9	biotite	conventional K-Ar	KA-67	"4.72E-04, 0.577E-04*"	8.54	11.74	87		Curtis and others (1958)	age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
800	1	83.06	1.7	biotite	conventional K-Ar	KA-149	"4.72E-04, 0.577E-04*"	8.02	9.815	87			age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
801	1	77.39	1.7	biotite	conventional K-Ar	KA-155	"4.72E-04, 0.577E-04*"	8.48	9.654	78			age not evaluated			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
802	1	1.52	0.24	biotite	conventional K-Ar	KA-101	"4.72E-04, 0.577E-04*"	4.87	0.1066	5			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
803	1	1.64	0.1	biotite	conventional K-Ar	KA-65	"4.72E-04, 0.577E-04*"	7.96	0.1884	21			age of intrusion			AGE CALCULATED WITH OBSOLETE DECAY CONSTANTS FOR POTASSIUM-40
808	1	63.88	1.9	biotite	conventional K-Ar	L-843	"4.72E-04, 0.585E-04, 1.19E-04*"	4.23	3.96	82			age of intrusion	"ANALYZED SEPARATE WAS 95% BIOTITE, 5% CHLORITE, QUARTZ, AND FELDSPAR"	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
808	2	65.15	1.9	biotite	conventional K-Ar	L-843	"4.72E-04, 0.585E-04, 1.19E-04*"	4.23	4.04	78			age of intrusion	"ANALYZED SEPARATE WAS 95% BIOTITE, 5% CHLORITE, QUARTZ, AND FELDSPAR"	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
808	3	63.56	1.9	biotite	conventional K-Ar	L-843	"4.72E-04, 0.585E-04, 1.19E-04*"	4.23	3.94	78			age of intrusion	"ANALYZED SEPARATE WAS 95% BIOTITE, 5% CHLORITE, QUARTZ, AND FELDSPAR"	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
809	1	19.6	1.3	biotite	conventional K-Ar	L-844	"4.72E-04, 0.585E-04, 1.19E-04*"	5.71	1.62	21				BIOTITE PLUS 12% CHLORITE AND 5% HORNBLENDE		AGE MAY INDICATE TIME OF ALTERATION
809	2	20.07	3.5	hornblende	conventional K-Ar	L-844	"4.72E-04, 0.585E-04, 1.19E-04*"	0.475	0.138	9				"HORNBLENDE PLUS 4% CHLORITE, BIOTITE, AND EPIDOTE"		AGE MAY INDICATE TIME OF ALTERATION
810	1	58.83	1.7	biotite	conventional K-Ar	L-846	"4.72E-04, 0.585E-04, 1.19E-04*"	8.41	7.24	90			age of intrusion	BIOTITE PLUS 2% IMPURITIES		
811	1	60.81	1.8	biotite	conventional K-Ar	L-850	"4.72E-04, 0.585E-04, 1.19E-04*"	8.49	7.56	94			age of intrusion	100% BIOTITE SEPARATE		
812	1	62.94	2.3	hornblende	conventional K-Ar	L-847	"4.72E-04, 0.585E-04, 1.19E-04*"	0.475	0.438	33			age of intrusion	ANALYZED SEPARATE CONTAINED 10% CHLORITE AND OTHER IMPURITIES	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES.	
812	2	64.63	6.3	hornblende	conventional K-Ar	L-847	"4.72E-04, 0.585E-04, 1.19E-04*"	0.475	0.45	15			age of intrusion	ANALYZED SEPARATE CONTAINED 10% CHLORITE AND OTHER IMPURITIES	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES.	
813	1	56.5	1.7	biotite	conventional K-Ar	L-976	"4.72E-04, 0.585E-04, 1.19E-04*"	7.54	6.23	86			age of intrusion	ANALYZED SEPARATE CONTAINED 5% CHLORITE		
814	1	24.76	0.8	hornblende	conventional K-Ar	L-942	"4.72E-04, 0.585E-04, 1.19E-04*"	1.07	0.384	40			age of intrusion	"ANALYZED SEPARATE CONTAINED 12% CHLORITE, 5% BIOTITE AND OTHER IMPURITIES"		
815	1	27.09	0.8	biotite	conventional K-Ar	L-1126	"4.72E-04, 0.585E-04, 1.19E-04*"	8.17	3.21	69			age of intrusion	SAMPLE IS 100% BIOTITE	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES.	
816	1	25.92	0.8	biotite	conventional K-Ar	L-1036	"4.72E-04, 0.585E-04, 1.19E-04*"	5.72	2.15	55			age of intrusion	80-100 MESH ANALYZED SEPARATE CONTAINED 40% CHLORITE		
817	1	122.01	4	hornblende	conventional K-Ar	L-1037	"4.72E-04, 0.585E-04, 1.19E-04*"	1.04	1.89	88			age meaning uncertain (geologic factors)	ANALYZED SEPARATE CONTAINS ABOUT 40% CHLORITE		
818	1	34.19	1	aegerine (acmite)	conventional K-Ar	L-945	"4.72E-04, 0.585E-04, 1.19E-04*"	0.664	0.33	56			age of intrusion	ANALYZED SEPARATE CONTAINED 2% BIOTITE AND OTHER IMPURITIES		
818	2	34.5	1.3	aegerine (acmite)	conventional K-Ar	L-945	"4.72E-04, 0.585E-04, 1.19E-04*"	0.664	0.333	44			age of intrusion	ANALYZED SEPARATE CONTAINED 2% BIOTITE AND OTHER IMPURITIES.		
819	1	9.77	0.3	biotite	conventional K-Ar	L-1030	"4.72E-04, 0.585E-04, 1.19E-04*"	7.37	1.04	43			age of intrusion	ANALYZED SEPARATE CONTAINED 10% IMPURITIES		
820	1	78.61	2.3	hornblende	conventional K-Ar	L-1031	"4.72E-04, 0.585E-04, 1.19E-04*"	0.657	0.76	71			age meaning uncertain (analysis questionable)	ANALYZED SEPARATE CONTAINED 2% EPIDOTE AND FELDSPAR	"POTASSIUM DETERMINATIONS ARE 0.664, 0.640, AND 0.665% K20; AVERAGE IS 0.657% K20."	
820	2	73.24	2.2	hornblende	conventional K-Ar	L-1031	"4.72E-04, 0.585E-04, 1.19E-04*"	0.657	0.707	56			age of intrusion	ANALYZED SEPARATE CONTAINED 2% EPIDOTE AND FELDSPAR	"POTASSIUM DETERMINATIONS ARE 0.664, 0.640, 0.665% K20; AVERAGE IS 0.657% K20"	
821	1	39.44	1.2	biotite	conventional K-Ar	L-1032	"4.72E-04, 0.585E-04, 1.19E-04*"	6.55	3.76	77			age of intrusion	80-100 MESH ANALYZED SEPARATE CONTAINED 2% IMPURITIES		
822	1	71.96	2.1	biotite	conventional K-Ar	L-1035	"4.72E-04, 0.585E-04, 1.19E-04*"	8.25	8.72	96			age of intrusion	"80-100 MESH, HORNBLENDE PLUS 2% IMPURITIES (BIOTITE, ETC.)"		
822	2	71.5	2.1	hornblende	conventional K-Ar	L-1035	"4.72E-04, 0.585E-04, 1.19E-04*"	1	1.05	86			age of intrusion			
823	1	60.35	1.8	biotite	conventional K-Ar	L-1124	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	7.28	94			age of intrusion	60-100 MESH ANALYZED SEPARATE CONTAINED 5% IMPURITIES		
824	1	66.03	1.9	biotite	conventional K-Ar	L-1125	"4.72E-04, 0.585E-04, 1.19E-04*"	6.94	6.72	92			age of intrusion	ANALYZED SEPARATE CONTAINS 25% CHLORITE		
825	1	23.28	0.7	Unk	conventional K-Ar	L-1039	"4.72E-04, 0.585E-04, 1.19E-04*"	8.48	2.86	79			age of intrusion	"80-100 MESH, PURE BIOTITE SEPARATE"		
825	2	25.05	0.7	muscovite	conventional K-Ar	L-1039	"4.72E-04, 0.585E-04, 1.19E-04*"	9.94	3.61	81			age of intrusion	"80-100 MESH, MUSCOVITE SEPARATE WITH 2% IMPURITIES"		
826	1	131.35	4	hornblende	conventional K-Ar	L-955	"4.72E-04, 0.585E-04, 1.19E-04*"	1.3	2.55	75			minimum age of intrusion	ANALYZED SEPARATE CONTAINED 5% IMPURITIES		
826	2	137.3	4	hornblende	conventional K-Ar	L-955	"4.72E-04, 0.585E-04, 1.19E-04*"	1.3	2.67	84			age of intrusion	ANALYZED SEPARATE CONTAINED 5% IMPURITIES		
827	1	51.95	1.5	biotite	conventional K-Ar	L-1048	"4.72E-04, 0.585E-04, 1.19E-04*"	6.84	5.19	82			age of intrusion	SEPARATE CONTAINED 2% IMPURITIES		
827	2	68.77	2	hornblende	conventional K-Ar	L-1048	"4.72E-04, 0.585E-04, 1.19E-04*"	0.875	0.883	78			"sample contains excess radiogenic argon, age is too old"	SEPARATE CONTAINED 2% BIOTITE		
827	3	60.73	1.8	hornblende	conventional K-Ar	L-1048	"4.72E-04, 0.585E-04, 1.19E-04*"	0.875	0.778	36			"sample contains excess radiogenic argon, age is too old"	SEPARATE CONTAINED 2% BIOTITE		
827	4	52.49	1.5	hornblende	conventional K-Ar	L-1048	"4.72E-04, 0.585E-04, 1.19E-04*"	0.875	0.671	60			age of intrusion	SEPARATE CONTAINED 2% BIOTITE		
827	5	50.72	1.5	hornblende	conventional K-Ar	L-1048	"4.72E-04, 0.585E-04, 1.19E-04*"	0.875	0.648	56			age of intrusion	SEPARATE CONTAINED 2% BIOTITE		
828	1	1310	40	hornblende	conventional K-Ar	L-1049	"4.72E-04, 0.585E-04, 1.19E-04*"	0.302	8.37	86			age of intrusion	80-100 MESH ANALYZED SEPARATE CONTAINED AUGITE AND CHLORITE		
829	1	69.79	2	biotite	conventional K-Ar	L-956	"4.72E-04, 0.585E-04, 1.19E-04*"	8.59	8.8	93			age of intrusion	60-100 MESH SEPARATE OF PURE BIOTITE	POTASSIUM VALUE GIVEN IN ARTICLE AS 7.13% K	
829	2	67.24	2	muscovite	conventional K-Ar	L-956	"4.72E-04, 0.585E-04, 1.19E-04*"	10.24	10.1	71			age of intrusion	60-100 MESH SEPARATE OF PURE MUSCOVITE	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES (8.49% AND 8.52% K).	
829	3	69.2	2	muscovite	conventional K-Ar	L-956	"4.72E-04, 0.585E-04, 1.19E-04*"	10.24	10.4	89			age of intrusion	60-100 MESH SEPARATE OF PURE MUSCOVITE	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES (8.49% AND 8.52% K).	
830	1	74.74	2.2	biotite	conventional K-Ar	L-957	"4.72E-04, 0.585E-04, 1.19E-04*"	8.72	9.58	79		McDowell and Kulp (1969)	age not evaluated	100% BIOTITE SEPARATE		
831	1	117.69	3	biotite	conventional K-Ar	L-1027	"4.72E-04, 0.585E-04, 1.19E-04*"	8.11	14.2	93		McDowell and Kulp (1969)	age not evaluated	80-100 MESH SEPARATE CONTAINS 25% CHLORITE		
831	2	128.73	4	hornblende	conventional K-Ar	L-1027	"4.72E-04, 0.585E-04, 1.19E-04*"	1.14	2.19	81		McDowell and Kulp (1969)	age not evaluated	80-100 MESH SEPARATE CONTAINS 5% BIOTITE AND 2% CHLORITE		
831	3	124.75	4	hornblende	conventional K-Ar	L-1027	"4.72E-04, 0.585E-04, 1.19E-04*"	1.14	2.12	86			age not evaluated	80-100 MESH SEPARATE CONTAINS 5% BIOTITE AND 2% CHLORITE		
832	1	78.58	2.3	biotite	conventional K-Ar	L-1028	"4.72E-04, 0.585E-04, 1.19E-04*"	8.57	9.91	89		McDowell and Kulp (1969)	age not evaluated			
833	1	44.07	1.3	biotite	conventional K-Ar	L-1029	"4.72E-04, 0.585E-04, 1.19E-04*"	8.05	5.17	85		McDowell and Kulp (1969)	age not evaluated	ANALYZED SEPARATE CONTAINED 3% CHLORITE		
834	1	50.36	1.5	biotite	conventional K-Ar	L-1121	"4.72E-04, 0.585E-04, 1.19E-04*"	8.31	6.11	87		McDowell and Kulp (1969)	age not evaluated	ANALYZED SEPARATE CONTAINED 10% CHLORITE		
835	1	163.6	5	hornblende	conventional K-Ar	L-1122	"4.72E-04, 0.585E-04, 1.19E-04*"	0.434	1.07	78		McDowell and Kulp (1969)	age not evaluated	ANALYZED SEPARATE CONTAINED 5% IMPURITIES		
835	2	154.81	7	hornblende	conventional K-Ar	L-1122	"4.72E-04, 0.585E-04, 1.19E-04*"	0.434	1.01	53		Zartman and Wasserburg (1969)	age not evaluated	ANZLYZED SEPARATE CONTAINED 5% IMPURITIES		
836	1	44.62	1.3	biotite	conventional K-Ar	L-1123	"4.72E-04, 0.585E-04, 1.19E-04*"	7.58	4.93	79		McDowell and Kulp (1969)	age not evaluated			
837	1	39.18	1.1	biotite	conventional K-Ar	L-953	"4.72E-04, 0.585E-04, 1.19E-04*"	8.26	4.71	84		McDowell and Kulp (1969)	age not evaluated	60-100 MESH ANALYZED SEPARATE CONTAINED 15% CHLORITE		
838	1	42	1.3	biotite	conventional K-Ar	L-954	"4.72E-04, 0.585E-04, 1.19E-04"	8.89		6		McDowell and Kulp (1969)	age not evaluated	60-100 MESH ANALYZED SEPARATE CONTAINED 7% CHLORITE		
839	1	63.45	1.9	biotite	conventional K-Ar	L-1026	"4.72E-04, 0.585E-04, 1.19E-04*"	9.54	8.87	88		McDowell and Kulp (1969)	age not evaluated	80-100 MESH ANALYZED SEPARATE CONTAINED 5% QUARTZ AND FELDSPAR		
839	2	60.36	1.8	biotite	conventional K-Ar	L-1026	"4.72E-04, 0.585E-04, 1.19E-04*"	9.54	8.43	86		McDowell and Kulp (1969)	age not evaluated	80-100 MESH ANALYZED SEPARATE CONTAINED 5% QUARTZ AND FELDSPAR		
840	1	56.05	1.6	muscovite	conventional K-Ar	L-1120	"4.72E-04, 0.585E-04, 1.19E-04*"	10.37	8.5	88		McDowell and Kulp (1969)	age not evaluated	ANALYZED SEPARATE CONTAINED 2% FELDSPAR		
841	1	78.51	2.3	biotite	conventional K-Ar	L-951	"4.72E-04, 0.585E-04, 1.19E-04*"	6.89	7.96	79		Tilling and others (1968)	age of intrusion	ANALYZED SEPARATE CONTAINED 5% IMPURITIES		
841	2	78.53	2.3	hornblende	conventional K-Ar	L-951	"4.72E-04, 0.585E-04, 1.19E-04*"	0.836	0.966	46		Tilling and others (1968)	age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES INCLUDING BIOTITE		
842	1	72.09	2.1	biotite	conventional K-Ar	L-952	"4.72E-04, 0.585E-04, 1.19E-04*"	7.64	8.09	87		Tilling and others (1968)	age of intrusion	+20 MESH  BIOTITE PLUS 15% CHLORITE		
842	2	71.95	2.1	biotite	conventional K-Ar	L-952	"4.72E-04, 0.585E-04, 1.19E-04*"	5.99	6.33	57		Tilling and others (1968)	age of intrusion	80-100 MESH BIOTITE PLUS 5% HORNBLENDE		
842	3	82.29	2.4	hornblende	conventional K-Ar	L-952	"4.72E-04, 0.585E-04, 1.19E-04*"	0.575	0.697	78		Tilling and others (1968)	"sample contains excess radiogenic argon, age is too old"	80-100 MESH HORNBLENDE PLUS 2% BIOTITE		
842	4	80.1	9.2	hornblende	conventional K-Ar	L-952	"4.72E-04, 0.585E-04, 1.19E-04*"	0.575	0.678	13		Tilling and others (1968)	"sample contains excess radiogenic argon, age is too old"	80-100 MESH HORNBLENDE PLUS 2% BIOTITE		
843	1	78.98	2.3	biotite	conventional K-Ar	L-1023	"4.72E-04, 0.585E-04, 1.19E-04*"	7.02	8.16	57		Tilling and others (1968)	age of intrusion	60-100 MESH BIOTITE SEPARATE PLUS 12% CHLORITE		
843	2	78.99	2.3	hornblende	conventional K-Ar	L-1023	"4.72E-04, 0.585E-04, 1.19E-04*"	0.548	0.637	56		Tilling and others (1968)	age of intrusion	60-100 MESH HORNBLENDE SEPARATE PLUS 2% BIOTITE-CHLORITE	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES.	
844	1	69.6	2	biotite	conventional K-Ar	L-1024	"4.72E-04, 0.585E-04, 1.19E-04*"	8.32	8.5	82		Tilling and others (1968)	age of intrusion	BIOTITE SEPARATE PLUS 3% CHLORITE		
844	2	70.75	2.1	hornblende	conventional K-Ar	L-1024	"4.72E-04, 0.585E-04, 1.19E-04*"	1.29	1.34	69		Tilling and others (1968)	age of intrusion	HORNBLENDE PLUS 2% BIOTITE		
845	1	74.71	2.2	biotite	conventional K-Ar	L-1025	"4.72E-04, 0.585E-04, 1.19E-04*"	8.55	9.39	78		Tilling and others (1968)	age of intrusion			
845	2	73.7	2.2	biotite	conventional K-Ar	L-1025	"4.72E-04, 0.585E-04, 1.19E-04*"	8.55	9.26	83		Tilling and others (1968)	age of intrusion			
846	1	76.84	2.3	biotite	conventional K-Ar	L-1116	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	9.38	79		Tilling and others (1968)	age of intrusion	BIOTITE CONCENTRATE WITH 18% CHLORITE AND ABOUT 5% HORNBLENDE		
846	2	76.75	2.3	hornblende	conventional K-Ar	L-1116	"4.72E-04, 0.585E-04, 1.19E-04*"	0.52	0.587	53		Tilling and others (1968)	age of intrusion	60-100 MESH SEPARATE OF 100% HORNBLENDE		
847	1	77.47	2.3	biotite	conventional K-Ar	L-1117	"4.72E-04, 0.585E-04, 1.19E-04*"	8.95	10.2	89		Tilling and others (1968)	age of intrusion	100% BIOTITE CONCENTRATE		
847	2	74.79	2.2	biotite	conventional K-Ar	L-1117	"4.72E-04, 0.585E-04, 1.19E-04*"	8.95	9.84	93		Tilling and others (1968)	age of intrusion	100% BIOTITE CONCENTRATE		
847	3	83.5	2.7	hornblende	conventional K-Ar	L-1117	"4.72E-04, 0.585E-04, 1.19E-04*"	0.625	0.769	39		Tilling and others (1968)	"sample contains excess radiogenic argon, age is too old"	100% HORNBLENDE SEPARATE		
848	1	50.38	2.2	hornblende	conventional K-Ar	L-1020	"4.72E-04, 0.585E-04, 1.19E-04*"	0.59	0.434	28			age of intrusion	100% HORNBLENDE SEPARATE		
849	1	42.1	1.2	biotite	conventional K-Ar	L-1021	"4.72E-04, 0.585E-04, 1.19E-04*"	8.35	5.12	74			minimum age of intrusion	"60-100 MESH, 100% BIOTITE SEPARATE"		
849	2	44.32	1.3	hornblende	conventional K-Ar	L-1021	"4.72E-04, 0.585E-04, 1.19E-04*"	0.743	0.48	45			maximum age of intrusion	60-100 MESH HORNBLENDE SEPARATE WITH 5% IMPURITIES		
850	1	73.41	2.2	biotite	conventional K-Ar	L-1118	"4.72E-04, 0.585E-04, 1.19E-04*"	7.62	8.22	90			age of intrusion	ANALYZED SEPARATE CONTAINS 20% CHLORITE	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES.	
850	2	74.99	2.2	biotite	conventional K-Ar	L-1118	"4.72E-04, 0.585E-04, 1.19E-04*"	7.62	8.4	74			age of intrusion	ANALYZED SEPARATE CONTAINS 20% CHLORITE	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES.	
850	3	121.16	4	hornblende	conventional K-Ar	L-1118	"4.72E-04, 0.585E-04, 1.19E-04*"	0.848	1.53	72			age not evaluated	"HORNBLENDE SEPARATE INCLUDES 2% IMPURITIES (BIOTITE, ETC.)"		
850	4	121.16	4	hornblende	conventional K-Ar	L-1118	"4.72E-04, 0.585E-04, 1.19E-04*"	0.848	1.53	78			age not evaluated	"HORNBLENDE SEPARATE  INCLUDES 2% IMPURITIES (BIOTITE, ETC.)"	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES.	
851	1	246.24	7	augite-ferroaugite	conventional K-Ar	L-1119	"4.72E-04, 0.585E-04, 1.19E-04*"	0.129	0.49	63			age not evaluated	ANALYZED SEPARATE CONTAINED 2% IMPURITIES	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
852	1	37.81	1.1	biotite	conventional K-Ar	L-969	"4.72E-04, 0.585E-04, 1.19E-04*"	8.89	4.89	86			age of intrusion	80-100 MESH SEPARATE OF 100% BIOTITE		THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967)
853	1	105.12	3	hornblende	conventional K-Ar	L-958	"4.72E-04, 0.585E-04, 1.19E-04*"	1.54	2.4	87			age of intrusion	ANALYZED SEPARATE CONTAINED 2% FELDSPAR		THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967)
854	1	111.55	3	hornblende	conventional K-Ar	L-959	"4.72E-04, 0.585E-04, 1.19E-04*"	1.34	2.22	63			age of intrusion	ANALYZED SEPARATE CONTAINED 5% IMPURITIES		THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967)
854	2	110.09	3	hornblende	conventional K-Ar	L-959	"4.72E-04, 0.585E-04, 1.19E-04*"	1.34	2.19	61			age of intrusion	ANALYZED SEPARATE CONTAINED 5% IMPURITIES.		
855	1	111.28	3	hornblende	conventional K-Ar	L-961	"4.72E-04, 0.585E-04, 1.19E-04*"	0.829	1.37	89			age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES		THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967)
856	1	109.35	4	hornblende	conventional K-Ar	L-960	"4.72E-04, 0.585E-04, 1.19E-04*"	1.22	1.98	38			age of intrusion	60-100 MESH ANALYZED SEPARATE CONTAINED 5% IMPURITIES		THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967)
857	1	116.84	3	biotite	conventional K-Ar	L-962	"4.72E-04, 0.585E-04, 1.19E-04*"	6.445	11.2	91			age of intrusion	BIOTITE SEPARATE WITH 5% HORNBLENDE		THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967)
857	2	109.4	3	hornblende	conventional K-Ar	L-962	"4.72E-04, 0.585E-04, 1.19E-04*"	1.01	1.64	90			age of intrusion	100% HORNBLENDE SEPARATE		THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967)
858	1	113.42	3	biotite	conventional K-Ar	L-1013	"4.72E-04, 0.585E-04, 1.19E-04*"	8.9	15	90			age of intrusion	80-100 MESH ANALYZED SEPARATE CONTAINED 2% IMPURITIES		THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967)
859	1	111.12	3	biotite	conventional K-Ar	L-1014	"4.72E-04, 0.585E-04, 1.19E-04*"	10.06	16.6	96			age of intrusion	80-100 MESH AND ANALYZED SEPARATE CONTAINED 5% IMPURITIES		THIS ANALYSIS ALSO REPORTED IN MCDOWELL AND KULP (1967)
860	1	149.59	4	biotite	conventional K-Ar	L-1040	"4.72E-04, 0.585E-04, 1.19E-04*"	7.66	17.2	85			age of intrusion	BIOTITE SEPARATE WITH 1% CHLORITE AND 5-10% HORNBLENDE		
860	2	142.94	5	hornblende	conventional K-Ar	L-1040	"4.72E-04, 0.585E-04, 1.19E-04*"	0.593	1.27	42			minimum age of intrusion	HORNBLENDE SEPARATE PLUS 2% BIOTITE		
861	1	22.3	0.7	biotite	conventional K-Ar	L-1041	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	2.53	66			age of intrusion	100% BIOTITE SEPARATE		
862	1	126.56	5	biotite	conventional K-Ar	L-1042	"4.72E-04, 0.585E-04, 1.19E-04*"	7.47	14.1	86			age of intrusion	ANALYZED SEPARATE CONTAINED 24% CHLORITE AND 10% HORNBLENDE		
863	1	60.15	1.8	biotite	conventional K-Ar	L-849	"4.72E-04, 0.585E-04, 1.19E-04*"	5.53	4.87	62			age of intrusion	ANALYZED SEPARATE CONTAINED 25% CHLORITE AND MINOR HORNBLENDE		
863	2	57.72	1.7	hornblende	conventional K-Ar	L-849	"4.72E-04, 0.585E-04, 1.19E-04*"	0.913	0.771	74			age of intrusion	ANALYZED SEPARATE CONTAINED 5% IMPURITIES	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES.	
864	1	57.14	1.7	biotite	conventional K-Ar	L-852	"4.72E-04, 0.585E-04, 1.19E-04*"	7.19	6.01	72			minimum age of intrusion	20-40 MESH ANALYZED SEPARATE CONTAINED 15% CHLORITE	"POTASSIUM DETERMINATIONS ARE 7.25, 7.10, AND 7.24% K20; AVERAGE IS LISTED AS 7.19%."	
864	2	59.48	1.7	biotite	conventional K-Ar	L-852	"4.72E-04, 0.585E-04, 1.19E-04*"	7.19	6.26	66			age of intrusion	20-40 MESH ANALYZED SEPARATE CONTAINED 15% CHLORITE	"POTASSIUM DETERMINATIONS ARE 7.25, 7.10, AND 7.24%."	
865	1	71.95	2.1	hornblende	conventional K-Ar	L-851A	"4.72E-04, 0.585E-04, 1.19E-04*"	0.669	0.707	60			age not evaluated	ANALYZED SEPARATE CONTAINED LESS THAN 1% BIOTITE BUT 5% OTHER IMPURITIES.		
866	1	52.62	2	biotite	conventional K-Ar	L-851B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.17	6.28	69			age not evaluated	100% BIOTITE SEPARATE		
866	2	68.58	2.9	hornblende	conventional K-Ar	L-851B	"4.72E-04, 0.585E-04, 1.19E-04*"	0.47	0.473	29			age not evaluated	ANALYZED SEPARATE CONTAINED 2% QUARTZ-BIOTITE		
867	1	59.2	1.8	biotite	conventional K-Ar	L-1017	"4.72E-04, 0.585E-04, 1.19E-04*"	5.99	5.19	65			age not evaluated	ANALYZED SEPARATE CONTAINED 10% IMPURITIES.		
867	2	59.6	1.8	hornblende	conventional K-Ar	L-1017	"4.72E-04, 0.585E-04, 1.19E-04*"	1	0.873	63			age not evaluated	ANALYZED SEPARATE CONTAINED 5% IMPURITITES INCLUDING BIOTITE		
868	1	57.43	1.7	biotite	conventional K-Ar	L-1015	"4.72E-04, 0.585E-04, 1.19E-04*"	7.63	6.41	80			age of intrusion	100% BIOTITE SEPARATE		
869	1	59.85	1.8	hornblende	conventional K-Ar	L-1016	"4.72E-04, 0.585E-04, 1.19E-04*"	0.928	0.813	50			age of intrusion	60-100 MESH ANALYZED SEPARATE CONTAINED ABUNDANT FELDSPAR		
870	1	73.08	2.2	hornblende	conventional K-Ar	L-1052	"4.72E-04, 0.585E-04, 1.19E-04*"	0.61	0.655	65			age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES INCLUDING BIOTITE		
870	2	70.57	2.1	hornblende	conventional K-Ar	L-1052	"4.72E-04, 0.585E-04, 1.19E-04*"	0.61	0.632	57			age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES INCLUDING BIOTITE		
870	3	81.59	2.4	hornblende	conventional K-Ar	L-1052	"4.72E-04, 0.585E-04, 1.19E-04*"	0.61	0.733	44			age meaning uncertain (analysis questionable)	ANALYZED SEPARATE CONTAINED 2% IMPURITIES INCLUDING BIOTITE		
871	1	34.16	1	biotite	conventional K-Ar	L-1111	"4.72E-04, 0.585E-04, 1.19E-04*"	8.5	4.22	73			age of volcanism	100% BIOTITE CONCENTRATE		
872	1	27.24	0.8	biotite	conventional K-Ar	L-1051	"4.72E-04, 0.585E-04, 1.19E-04*"	8.96	3.54	75			age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES		
873	1	58.02	1.7	biotite	conventional K-Ar	L-946	"4.72E-04, 0.585E-04, 1.19E-04*"	8.67	7.36	81			age of intrusion	ANALYZED SEPARATE CONTAINED 5% AEGIRINE-AUGITE		
873	2	56.81	1.7	aegerine (acmite)	conventional K-Ar	L-946	"4.72E-04, 0.585E-04, 1.19E-04*"	0.42	0.349	39			age of intrusion	AEGIRINE-AUGITE CONCENTRATE PLUS 2% BIOTITE	POTASSIUM VALUE IS THE AVERAGE OF REPLICATE ANALYSES.	
874	1	36.1	1.5	biotite	conventional K-Ar	L-948	"4.72E-04, 0.585E-04, 1.19E-04*"	9.6	5.04	80			age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES.	Reported age of 49.4 Ma is inconsistent with analytical data.	
875	1	60.24	1.8	biotite	conventional K-Ar	L-1053	"4.72E-04, 0.585E-04, 1.19E-04*"	8.05	7.1	66			age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES		
876	1	51.82	1.5	biotite	conventional K-Ar	L-1112	"4.72E-04, 0.585E-04, 1.19E-04*"	8.02	6.07	54			age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES		
877	1	57.14	1.7	biotite	conventional K-Ar	L-1113	"4.72E-04, 0.585E-04, 1.19E-04*"	7.43	6.21	62			age of intrusion	60-100 MESH ANALYZED SEPARATE CONTAINED 10% IMPURITITES		
878	1	58.35	4.3	aegerine (acmite)	conventional K-Ar	L-1114	"4.72E-04, 0.585E-04, 1.19E-04*"	0.718	0.613	19			age of intrusion	"60-100 MESH, 100% AEGIRINE CONCENTRATE"		
879	1	22.28	0.7	biotite	conventional K-Ar	L-970	"4.72E-04, 0.585E-04, 1.19E-04*"	9.08	2.93	73			age of intrusion	ANALYZED SEPARATE CONTAINED 2% CHLORITE		
880	1	30.66	3	hornblende	conventional K-Ar	L-972	"4.72E-04, 0.585E-04, 1.19E-04*"	0.73	0.325	15			age of intrusion	60-100 MESH ANALYZED SEPARATE CONTAINED 5% IMPURITIES		
881	1	37.71	1.1	biotite	conventional K-Ar	L-973	"4.72E-04, 0.585E-04, 1.19E-04*"	9.68	5.31	64			minimum age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES	POTASSIUM VALUE IS AVERAGE OF 9.79 AND 9.57%	AGE MAY REFLECT INFLUENCE OF POST-HYDROTHERMAL EVENT.
882	1	37.71	1.1	biotite	conventional K-Ar	L-974	"4.72E-04, 0.585E-04, 1.19E-04*"	9.37	5.14	73			minimum age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES		AGE MAY REFLECT INFLUENCE OF POST-HYDROTHERMAL EVENT.
883	1	41.36	1.3	biotite	conventional K-Ar	L-975	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	5.27	37			age of intrusion	ANALYZED SEPARATE CONTAINED 2% IMPURITIES.		AGE MAY REFLECT THERMAL EFFECTS FROM EMPLACEMENT OF NEARBY BINGHAM-STOCK-DIKE-ORE SYSTEM.
884	1	27.28	0.8	biotite	conventional K-Ar	L-1038	"4.72E-04, 0.585E-04, 1.19E-04*"	7.43	2.94	62			age of intrusion	ANALYZED SEPARATE CONTAINED 37% CHLORITE		
896	1	1623.73		whole rock	conventional K-Ar	MBT-6	"4.72E-04, 0.585E-04, 1.19E-04*"	1.83	69.38	98					1.77 K20 DETERMINATION BY X-RAY FLUORESCENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	"PROBABLE LOSS OF ARGON-40 BY DIFFUSION AND MINERAL RECRYSTALLIZATION, CAUSING LOWER AGE"
897	1	2384.98		whole rock	conventional K-Ar	MBT-7	"4.72E-04, 0.585E-04, 1.19E-04*"	0.138	9.86	95			age of intrusion		POTASSIUM CONTENT IS AVERAGE OF REPLICATE GRAVIMETRIC DETERMINATIONS.	
897	2	2384.98	110	whole rock	40Ar-40K isochron	MBT-7	"4.72E-04, 0.585E-04, 1.19E-04*"	0.138	9.86	95	30		age of intrusion		POTASSIUM CONTENT IS AVERAGE OF REPLICATE GRAVIMETRIC DETERMINATIONS.	
898	1	2032.41		non-mineral substance	conventional K-Ar	MBT-18	"4.72E-04, 0.585E-04, 1.19E-04*"	0.84	45.49	98			age not evaluated		POTASSIUM DETERMINED BY GRAVIMETRIC METHOD	
899	1	1629.5		whole rock	conventional K-Ar	MBT-19	"4.72E-04, 0.585E-04, 1.19E-04*"	1.28	48.79	100			age not evaluated		1.29% K20 BY X-RAY FLUORESCENCE; OTHER VALUE DETERMINED BY GRAVIMETRIC METHOD.	
900	1	1407.01		whole rock	conventional K-Ar	MBT-20	"4.72E-04, 0.585E-04, 1.19E-04*"	1.6	49.09	99					1.68% K20 BY X-RAY FLUORESCENSE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD	PROBABLE LOSS OF ARGON-40 BY DIFFUSION AND MINERAL RECRYSTALLIZATION HAS LOWER K-AR AGE
901	1	2051.06		whole rock	conventional K-Ar	MBT-26	"4.72E-04, 0.585E-04, 1.19E-04*"	0.81	44.54	100			age not evaluated		0.83% K20 DETERMINED BY ISOTOPIC DILUTION; OTHER VALUE DETERMINED BY GRAVIMETRIC METHOD.	
902	1	1238.82		whole rock	conventional K-Ar	MBT-27	"4.72E-04, 0.585E-04, 1.19E-04*"	1.05	26.92	87			age of intrusion		POTASSIUM DETERMINED BY GRAVIMETRIC METHOD	
903	1	1241.01		whole rock	conventional K-Ar	MBT-28	"4.72E-04, 0.585E-04, 1.19E-04*"	1.17	30.07	98			age of intrusion		POTASSIUM VALUE IS AVERAGE OF REPLICATE GRAVIMETRIC ANALYSES	
904	1	1624.43		whole rock	conventional K-Ar	MBT-29	"4.72E-04, 0.585E-04, 1.19E-04*"	1.28	48.56	99			age not evaluated		POTASSIUM VALUE IS AVERAGE OF REPLICATE GRAVIMETRIC ANALYSES.	
905	1	738.3		whole rock	conventional K-Ar	MBT-30	"4.72E-04, 0.585E-04, 1.19E-04*"	0.97	12.74	96			age of intrusion		RUBIDIUM AND STRONTIUM VALUES DETERMINED BY X-RAY FLUORESENCE. 87SR/86SR DETERMINED BY UNSPIKED RUN.	
905	2	738.3	32	whole rock	40Ar-40K isochron	MBT-30	"4.72E-04, 0.585E-04, 1.19E-04*"	0.97	12.74	96	20		age of intrusion		1.01% K20 BY X-RAY FLUORESCENCE;OTHER VALUE DETERMINED BY GRAVIMETRIC METHOD.	
906	1	1698.17		whole rock	conventional K-Ar	MBT-31	"4.72E-04, 0.585E-04, 1.19E-04*"	2.02	82.02	99			age not evaluated		POTASSIUM DETERMINED BY GRAVIMETRIC METHOD.	
907	1	1473.35		whole rock	conventional K-Ar	MBT-32	"4.72E-04, 0.585E-04, 1.19E-04*"	1.17	38.38	91			maximum age of intrusion		POTASSIUM DETERMINED BY GRAVIMETRIC METHOD	
908	1	1862.83		whole rock	conventional K-Ar	MBT-33	"4.72E-04, 0.585E-04, 1.19E-04*"	1.19	55.89	99			age not evaluated		1.15% K20 BY X-RAY FLUORESENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
909	1	1775.05		whole rock	conventional K-Ar	MBT-34	"4.72E-04, 0.585E-04, 1.19E-04*"	0.414	18.01	98					0.348% K2O BY X-RAY FLUORESCENCE; OTHER VALUE DETERMINED BY GRAVIMETRIC METHOD.	PROBABLE LOSS OF ARGON-40 BY DIFFUSION AND MINERAL RECRYSTALLIZATION CAUSED LOWER K-AR AGE.
910	1	2045.85		whole rock	conventional K-Ar	MBT-35	"4.72E-04, 0.585E-04, 1.19E-04*"	0.61	33.4	100			age not evaluated		0.61% K20 BY X-RAY FLURESCENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
911	1	2293.39		whole rock	conventional K-Ar	MBT-36	"4.72E-04, 0.585E-04, 1.19E-04*"	0.332	22.12	100			age not evaluated		0.305% K20 BY X-RAY FLUORESCENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD	
912	1	1436.28		whole rock	conventional K-Ar	MBT-37A	"4.72E-04, 0.585E-04, 1.19E-04*"	1.25	39.51	96			age not evaluated		1.21% K20 BY X-RAY FLUORESCENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
913	1	1601.28		whole rock	conventional K-Ar	MBT-38	"4.72E-04, 0.585E-04, 1.19E-04*"	1.199	44.51	96			age not evaluated		POTASSIUM VALUE IS AVERAGE OF REPLICATE GRAVIMETRIC ANALYSES	
914	1	1880.34		whole rock	conventional K-Ar	MBT-39	"4.72E-04, 0.585E-04, 1.19E-04*"	0.9	42.91	75			age not evaluated		POTASSIUM VALUE IS AVERAGE OF REPLICATE GRAVIMETRIC ANALYSES.	
915	1	1157.09		whole rock	conventional K-Ar	MBT-40	"4.72E-04, 0.585E-04, 1.19E-04*"	1.05	24.52	98			age not evaluated		POTASSIUM DETERMINED BY ISOTOPIC DILUTION	
916	1	2507.18		whole rock	conventional K-Ar	MBT-41	"4.72E-04, 0.585E-04, 1.19E-04*"	0.499	39.06	74			age of intrusion		0.50% K20 BY ISOTOPIC DILUTION; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
916	2	2507.18	110	whole rock	40Ar-40K isochron	MBT-41	"4.72E-04, 0.585E-04, 1.19E-04*"	0.499	39.06	74	30		age of intrusion		0.50% K20 BY ISOTOPIC DILUTION; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
917	1	2598.83		whole rock	conventional K-Ar	MBT-42	"4.72E-04, 0.585E-04, 1.19E-04*"	1.24	103.8	100			age of intrusion		POTASSIUM DETERMINED BY GRAVIMETRIC METHOD	
917	2	2598.83	110	whole rock	40Ar-40K isochron	MBT-42	"4.72E-04, 0.585E-04, 1.19E-04*"	1.24	103.8	100	30		age of intrusion		POTASSIUM DETERMINED BY GRAVIMETRIC METHOD.	
918	1	1468.64		non-mineral substance	conventional K-Ar	MBT-43A	"4.72E-04, 0.585E-04, 1.19E-04*"	0.8	26.12	94			age not evaluated		0.749% K20 BY X-RAY FLUORESCENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
919	1	1205.41		whole rock	conventional K-Ar	MBT-44	"4.72E-04, 0.585E-04, 1.19E-04*"	1.36	33.58	99			age not evaluated		1.36% K20 BY X-RAY FLUORESENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
920	1	1816.73		whole rock	conventional K-Ar	MBT-45	"4.72E-04, 0.585E-04, 1.19E-04*"	1.43	64.53	81			age not evaluated		1.35% K2O BY X-RAY FLUORESCENCE; THE OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
921	1	2535.34		whole rock	conventional K-Ar	MBT-48	"4.72E-04, 0.585E-04, 1.19E-04*"	0.48	38.36	97			age of intrusion		0.459% K20 BY X-RAY FLUORESCENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
921	2	2535.34	110	whole rock	40Ar-40K isochron	MBT-48	"4.72E-04, 0.585E-04, 1.19E-04*"	0.48	38.36	97	30		age of intrusion		0.459% BY X-RAY FLUORESCENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
922	1	1629.69		whole rock	conventional K-Ar	MBT-49	"4.72E-04, 0.585E-04, 1.19E-04*"	1.13	43.08	85			age not evaluated		POTASSIUM DETERMINED BY A GRAVIMETRIC METHOD.	
923	1	1091.64		whole rock	conventional K-Ar	MBT-52A	"4.72E-04, 0.585E-04, 1.19E-04*"	1.16	25.05	98			age not evaluated		POTASSIUM DETERMINED BY A GRAVIMETRIC METHOD.	
923	2	1093.13		whole rock	conventional K-Ar	MBT-52B	"4.72E-04, 0.585E-04, 1.19E-04*"	0.82	17.74	97			age not evaluated		POTASSIUM DETERMINED BY GRAVIMETRIC METHOD.	
924	1	2030		whole rock	conventional K-Ar	MBT-53	"4.72E-04, 0.585E-04, 1.19E-04"	1.09		98			age not evaluated		POTASSIUM VALUE IS AVERAGE OF REPLICATE GRAVIMETRIC ANALYSES.	
925	1	2068.58		whole rock	conventional K-Ar	MBT-54	"4.72E-04, 0.585E-04, 1.19E-04*"	0.54	30.12	98			age not evaluated		POTASSIUM VALUE IS AVERAGE OF REPLICATE GRAVIMETRIC ANALYSES.	
926	1	2541.78		whole rock	conventional K-Ar	MBT-57	"4.72E-04, 0.585E-04, 1.19E-04*"	0.44	35.33	95			age of intrusion		0.40% K20 BY X-RAY FLUORESCENCE; OTHER VALUE OBTAINED BY GRAVIMETRIC METHOD.	
926	2	2541.78	110	whole rock	40Ar-40K isochron	MBT-57	"4.72E-04, 0.585E-04, 1.19E-04*"	0.44	35.33	95	30		age of intrusion		0.40% K20 BY X-RAY FLUORESCENCE; OTHER VALUE OBTAINED BY A GRAVIMETRIC METHOD.	
934	1	991.72	40	biotite	conventional K-Ar	PUF-9B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.23	137.6	89			age of intrusion		ARGON-40 VALUE CALCULATED BY COMPILER	
935	1	1035.62	40	biotite	conventional K-Ar	PUF-10B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.41	129.1	93			age of intrusion		ARGON-40 VALUE CALCULATED BY COMPILER	
936	1	1031.54	40	biotite	conventional K-Ar	PUF-16B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.26	165.5	80			age of intrusion		ARGON-40 VALUE WAS CALCULATED BY COMPILER	
937	1	1015.4	40	biotite	conventional K-Ar	PUF-17B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.57	168.2	97			age of intrusion		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
937	2	1043.35	40	biotite	conventional K-Ar	PUF-17B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.57	174.3	91			age of intrusion		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
938	1	1298.1	60	muscovite	conventional K-Ar	PUF-7M	"4.72E-04, 0.584E-04, 1.19E-04*"	10.16	278	90			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER	
938	2	1315	60	muscovite	conventional K-Ar	PUF-7M	"4.72E-04, 0.584E-04, 1.19E-04*"	10.16	283.1	99			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
939	1	1478.27	60	biotite	conventional K-Ar	PUF-8B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.49	246.9	99			age of intrusion		ARGON-40 VALUE WAS CALCULATED BY COMPILER	
940	1	1546.92	60	biotite	conventional K-Ar	PUF-29B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.61	233	96			age of intrusion		ARGON-40 VALUE DETERMINED BY COMPILER	
941	1	993.91	40	biotite	conventional K-Ar	PUF-13B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.54	163	62			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER	
942	1	1151.32	60	biotite	conventional K-Ar	PUF-14B	"4.72E-04, 0.584E-04, 1.19E-04*"	9.14	212	98			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
943	1	1341.25	60	biotite	conventional K-Ar	PUF-34B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.91	255.3	99			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
944	1	1439.04	60	biotite	conventional K-Ar	PUF-24B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.55	271	98			age of intrusion		ARGON-40 VALUE WAS CALCULATED BY COMPILER	
945	1	1398.89	60	biotite	conventional K-Ar	PUF-32B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.67	263.8	99			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMP1LER.	
946	1	1462.74	60	biotite	conventional K-Ar	PUF-35B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.85	254.8	97			age of intrusion		ARGON-40 VALUE WAS CALCULATED BY COMPILER	
947	1	1207.5	60	biotite	conventional K-Ar	PUF-37B	"4.72E-04, 0.584E-04, 1.19E-04*"	9.2	227.7	98			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
948	1	1222.08	60	biotite	conventional K-Ar	PUF-19B	"4.72E-04, 0.584E-04, 1.19E-04*"	9.28	233.5	96			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
949	1	1228.02	60	biotite	conventional K-Ar	PUF-23B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.63	218.6	99			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
950	1	1064.06	40	biotite	conventional K-Ar	PUF-21B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.1	148.2	99			age not evaluated	SEPARATE CONTAINED 18% CHLORITE	ARGON-40 VALUE CALCULATED BY COMPILER.	
951	1	1349.39	60	biotite	conventional K-Ar	PUF-22B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.82	226	95			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
952	1	1246.49	60	biotite	conventional K-Ar	PUF-26B	"4.72E-04, 0.584E-04, 1.19E-04*"	9.73	251.6	69			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
953	1	1389.8	60	biotite	conventional K-Ar	PUF-18B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.98	210.4	98			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER.	
954	1	1185.79	60	biotite	conventional K-Ar	PUF-30B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.93	215.6	86			age not evaluated		ARGON-40 VALUE WAS CALCULATED BY COMPILER	
955	1	1.6		biotite	conventional K-Ar	KA-65	"4.72E-04, 0.585E-04, 1.19E-04"	7.96		21		Evernden and others (1957)	age of intrusion		POTASSIUM VALUE PUBLISHED AS 6.61% K; NO ANALYTICAL ERROR LISTED.	
956	1	1.5		biotite	conventional K-Ar	KA-101	"4.72E-04, 0.585E-04, 1.19E-04"	4.87		8		Evernden and others (1957)	minimum age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.04% K; NO ANALYTICAL ERROR LISTED.	
957	1	32.8		biotite	conventional K-Ar	KA-145	"4.72E-04, 0.585E-04, 1.19E-04"	7.35		71			age of volcanism		POTASSIUM VALUE PUBLISHED AS 6.1% K; NO ANALYTICAL ERROR LISTED.	
958	1	15.2		biotite	conventional K-Ar	KA-161	"4.72E-04, 0.585E-04, 1.19E-04"	5.06		9			age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.20% K; NO ANALYTICAL ERROR LISTED.	
959	1	33.4		biotite	conventional K-Ar	KA-175	"4.72E-04, 0.585E-04, 1.19E-04"	7.69		50			age of volcanism		POTASSIUM VALUE PUBLISHED AS 6.38% K; NO ANALYTICAL ERROR LISTED	EVERNDEN AND OTHERS (1961) REPORT AN AGE OF 32+/-1 FOR THIS SAMPLE BUT USED DECAY CONSTANT OF 0.584 E-10/YR
960	1	0.98		sanidine	conventional K-Ar	KA-305	"4.72E-04, 0.585E-04, 1.19E-04"	10.25		43			age of volcanism	SANIDINE GRAIN SIZE WAS GREATER THAN 420 MICRONS.	POTASSIUM VALUE PUBLISHED AS 8.51% K; NO ANALYTICAL ERROR LISTED	
960	2	0.98		sanidine	conventional K-Ar	KA-320	"4.72E-04, 0.585E-04, 1.19E-04"	10.35		47			age of volcanism	SANIDINE GRAIN SIZE WAS BETWEEN 250 AND 420 MICRONS	POTASSIUM VALUE PUBLISHED AS 8.59% K; NO ANAYLYTICAL ERROR LISTED	
960	3	0.91		sanidine	conventional K-Ar	KA-321	"4.72E-04, 0.585E-04, 1.19E-04"	10.75		47			age of volcanism	SANIDINE GRAIN SIZE WAS BETWEEN 250 AND 150 MICRONS	POTASSIUM VALUE WAS PUBLISHED AS 8.92% K; NO ANALYTICAL ERROR LISTED	
960	4	0.92		sanidine	conventional K-Ar	KA-328	"4.72E-04, 0.585E-04, 1.19E-04"	10.42		28			age of volcanism	SANIDINE GRAIN SIZE WAS BETWEEN 105 AND 150 MICRONS	POTASSIUM VALUE PUBLISHED AS 8.65% K; NO ANALYTICAL ERROR LISTED	
961	1	11.2		biotite	conventional K-Ar	KA-414	"4.72E-04, 0.585E-04, 1.19E-04"	7.67		48			age of volcanism		POTASSIUM VALUE PUBLISHED AS 6.37% K; NO ANALYTICAL ERROR LISTED.	
962	1	15.1		biotite	conventional K-Ar	KA-449	"4.72E-04, 0.585E-04, 1.19E-04"	5.82		59			age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.83% K; NO ANALYTICAL ERROR LISTED.	
963	1	2.2		biotite	conventional K-Ar	KA-451	"4.72E-04, 0.585E-04, 1.19E-04"	3.87		4			minimum age of volcanism		POTASSIUM VALUE PUBLISHED AS 3.21% K; NO ANALYTICAL ERROR LISTED	
964	1	10		biotite	conventional K-Ar	KA-453	"4.72E-04, 0.585E-04, 1.19E-04"	7.9		29			age of volcanism		POTASSIUM VALUE PUBLISHED AS 6.56% K; NO ANALYTICAL ERROR LISTED	
965	1	17.1		biotite	conventional K-Ar	KA-478	"4.72E-04, 0.585E-04, 1.19E-04"	6.24		66			age of volcanism		POTASSIUM VALUE PUBLISHED AS 5.18% K; NO ANALYTICAL ERROR LISTED	
966	1	11.1		biotite	conventional K-Ar	KA-480	"4.72E-04, 0.585E-04, 1.19E-04"	5.59		64			age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.64% K; NO ANALYTICAL ERROR LISTED	
967	1	21.3		biotite	conventional K-Ar	KA-481	"4.72E-04, 0.585E-04, 1.19E-04"	6.25		16			age of volcanism		POTASSIUM VALUE PUBLISHED AS 5.19% K; NO ANALYTICAL ERROR LISTED	
968	1	10.5		biotite	conventional K-Ar	KA-482	"4.72E-04, 0.585E-04, 1.19E-04"	8.14		11			minimum age of volcanism		POTASSIUM VALUE PUBLISHED AS 6.76% K; NO ANALYTICAL ERROR LISTED	
968	2	11.2		biotite	conventional K-Ar	KA-482II	"4.72E-04, 0.585E-04, 1.19E-04"	8.14		10			age of volcanism		CONVERTED FROM 6.76% K; NO ANALYTICAL ERROR LISTED	
969	1	33		sanidine	conventional K-Ar	KA-483	"4.72E-04, 0.585E-04, 1.19E-04"	5.7		79			age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.73% K; NO ANALYTICAL ERROR LISTED	
970	1	9.3		biotite	conventional K-Ar	KA-485	"4.72E-04, 0.585E-04, 1.19E-04"	5.38		36			age of volcanism		GIVEN AS 4.47% K; NO ANALYTICAL ERROR GIVEN	
971	1	31.1		sanidine	conventional K-Ar	KA-489	"4.72E-04, 0.585E-04, 1.19E-04"	6.88		46			age of volcanism		GIVEN AS 5.71% K; NO ANALYTICAL ERROR LISTED	
972	1	1.9		biotite	conventional K-Ar	KA-490	"4.72E-04, 0.585E-04, 1.19E-04"	8.94		25			age of volcanism		GIVEN AS 7.42% K; NO ANALYTICAL ERROR LISTED	
973	1	11.4		biotite	conventional K-Ar	KA-499	"4.72E-04, 0.585E-04, 1.19E-04"	7.37		69			age of volcanism		GIVEN AS 6.12% K; NO ANALYTICAL ERROR LISTED	
974	1	10.6		glass	conventional K-Ar	KA-500	"4.72E-04, 0.585E-04, 1.19E-04"	6.47		33			minimum age of volcanism		GIVEN AS 5.37% K; NO ERROR GIVEN	
975	1	10.8		biotite	conventional K-Ar	KA-551	"4.72E-04, 0.585E-04, 1.19E-04"	7.88		64			age of volcanism		POTASSIUM VALUE PUBLISHED AS 7.88% K; NO ANALYTICAL ERROR GIVEN	
976	1	11		biotite	conventional K-Ar	KA-552	"4.72E-04, 0.585E-04, 1.19E-04"	8.01		9			age of volcanism		POTASSIUM VALUE PUBLISHED AS 6.65% K; NO ANALYTICAL ERROR GIVEN	
977	1	8.9		sanidine	conventional K-Ar	KA-559	"4.72E-04, 0.585E-04, 1.19E-04"	8.79		34			age of volcanism		POTASSIUM VALUE PUBLISHED AS 7.30% K; NO ANALYTICAL ERROR GIVEN	
978	1	11.5		sanidine	conventional K-Ar	KA-577	"4.72E-04, 0.585E-04, 1.19E-04"	7.16		67			age of volcanism		POTASSIUM VALUE PUBLISHED AS 5.94% K; NO ANALYTICAL ERROR GIVEN	
979	1	3.3		plagioclase	conventional K-Ar	KA-587	"4.72E-04, 0.585E-04, 1.19E-04"	3.9		9			age of volcanism		POTASSIUM VALUE PUBLISHED AS 3.24% K; NO ANALYTICAL ERROR GIVEN	
980	1	21.6		adularia	conventional K-Ar	KA-646	"4.72E-04, 0.585E-04, 1.19E-04"	14.2		69			minimum age of volcanism	"AUTHIGENIC ADULARIA, POST-DEPOSITIONAL"	POTASSIUM VALUE PPUBLISHED AS 11.8% K; NO ANALYTICAL ERROR GIVEN	AGE INDICATES TIME OF FORMATION FOR THE ADULARIA
981	1	23.3		sanidine	conventional K-Ar	KA-647A	"4.72E-04, 0.585E-04, 1.19E-04"	6.85		56			age of volcanism		POTASSIUM VALUE PUBLISHED AS 5.69% K; NO ANALYTICAL ERROR GIVEN	
982	1	25.3		glass	conventional K-Ar	KA-648	"4.72E-04, 0.585E-04, 1.19E-04"	5.43		42			age of volcanism	ONLY INTERIOR FRAGMENTS OF LAPILLI USED IN ANALYSIS	POTASSIUM VALUE PUBLISHED AS 4.51% K; NO ANALYTICAL ERROR GIVEN	
983	1	24.9		albite	conventional K-Ar	KA-649A	"4.72E-04, 0.585E-04, 1.19E-04"	1.72		30			age of volcanism		POTASSIUM VALUE PUBLISHED AS 1.43% K; NO ANALYTICAL ERROR GIVEN	
984	1	9.8		whole rock	conventional K-Ar	KA-814	"4.72E-04, 0.585E-04, 1.19E-04"	1.48		9			minimum age of intrusion		POTASSIUM VALUE PUBLISHED AS 1.23% K; NO ANALYTICAL ERROR GIVEN	
985	1	9.8		whole rock	conventional K-Ar	KA-816	"4.72E-04, 0.585E-04, 1.19E-04"	1.45		14			age of volcanism		POTASSIUM VALUE PUBLISHED AS 1.45% K; NO ANALYTICAL ERROR GIVEN	
986	1	37.5		whole rock	conventional K-Ar	KA-818	"4.72E-04, 0.585E-04, 1.19E-04"	1.171		46			age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.972% K; NO ANALYTICAL ERROR GIVEN	
987	1	37.4		sanidine	conventional K-Ar	KA-825	"4.72E-04, 0.585E-04, 1.19E-04"	9.79		46			age of volcanism		POTASSIUM VALUE PUBLISHED AS 8.13% K; NO ANALYTICAL ERROR GIVEN	
987	2	37.5		biotite	conventional K-Ar	KA-826	"4.72E-04, 0.585E-04, 1.19E-04"	6.67		26			age of volcanism		GIVEN AS 5.54% K; NO ANALYTICAL ERROR GIVEN	
987	3	36		glass	conventional K-Ar	KA-827	"4.72E-04, 0.585E-04, 1.19E-04"	5.76		81			minimum age of volcanism		GIVEN AS 4.78% K; NO ANALYTICAL ERROR GIVEN	
988	1	10		glass	conventional K-Ar	KA-830	"4.72E-04, 0.585E-04, 1.19E-04"	5.69		48			age of volcanism	GLASS IN THE FORM OF COARSE ASH	POTASSIUM VALUE PUBLISHED AS 4.72% K; NO ANALYTICAL ERROR GIVEN	
989	1	3.3		glass	conventional K-Ar	KA-831	"4.72E-04, 0.585E-04, 1.19E-04"	4.6		23			minimum age of volcanism	HYDRATED AND NON-HYDRATED GLASS IN THE FORM OF ASH	POTASSIUM VALUE PUBLISHED AS 3.82% K; NO ANALYTICAL ERROR GIVEN	
990	1	3.2		glass	conventional K-Ar	KA-832	"4.72E-04, 0.585E-04, 1.19E-04"	3.85		19			minimum age of volcanism	HYDRATED AND NON-HYDRATED GLASS IN THE FORM OF ASH	POTASSIUM VALUE PUBLISHED AS 3.20% K; NO ANALYTICAL ERROR GIVEN	
991	1	31.5		whole rock	conventional K-Ar	KA-845	"4.72E-04, 0.585E-04, 1.19E-04"	1.45		45			age of volcanism		POTASSIUM VALUE PUBLISHED AS 1.20% K; NO ANALYTICAL ERROR GIVEN	
992	1	14.7		glass	conventional K-Ar	KA-891	"4.72E-04, 0.585E-04, 1.19E-04"	5.76		42			age of volcanism	GLASS IN THE FORM OF ASH SHARDS	POTASSIUM VALUE PUBLISHED AS 4.78% K; NO ANALTICAL ERROR GIVEN	
993	1	58.7		whole rock	conventional K-Ar	KA-978	"4.72E-04, 0.585E-04, 1.19E-04"	4.47		97					POTASSIUM VALUE PUBLISHED AS 3.71% K; NO ANALYTICAL ERROR GIVEN	"AGE IS APPARENTLY TOO YOUNG, SHOULD BE ABOUT 65 M.Y."
994	1	46		glass	conventional K-Ar	KA-979	"4.72E-04, 0.585E-04, 1.19E-04"	5.96		90					POTASSIUM VALUE PUBLISHED AS 4.95% K; NO ANALYTICAL ERROR GIVEN	AGE IS MUCH TOO OLD; SAMPLE CONTAMINATED
995	1	29.5		glass	conventional K-Ar	KA-981	"4.72E-04, 0.585E-04, 1.19E-04"	6.07		64			maximum age of volcanism		POTASSIUM VALUE PUBLISHED AS 5.04% K; NO ANALYTICAL ERROR GIVEN	SAMPLE MAY HAVE BEEN CONTAMINATED WITH OLDER MATERIAL
996	1	25.6		glass	conventional K-Ar	KA-985	"4.72E-04, 0.585E-04, 1.19E-04"	3.2		34			age of volcanism	GLASS ASH	POTASSIUM VALUE PUBLISHED AS 2.66% K; NO ANALYTICAL ERROR GIVEN	
997	1	64.8		plagioclase	conventional K-Ar	KA-992	"4.72E-04, 0.585E-04, 1.19E-04"	7.26		61			age of volcanism		POTASSIUM VALUE PUBLISHED AS 6.03% K (THIS APPEARS TOO LARGE A VALUE FOR PLAGIOCLASE); NO ANALYTICAL ERROR GIVEN	
998	1	9.89		plagioclase	conventional K-Ar	KA-829	"4.72E-04, 0.585E-04, 1.19E-04"	0.336		17			age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.279% K; NO ANALYTICAL ERROR GIVEN	
999	1	11.7		whole rock	conventional K-Ar	KA-993	"4.72E-04, 0.585E-04, 1.19E-04"	0.749		30			age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.622% K; NO ANALYTICAL ERROR GIVEN	
1000	1	29.7		K feldspar	conventional K-Ar	KA-1000	"4.72E-04, 0.585E-04, 1.19E-04"	5.55		95			age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.61% K; NO ANALYTICAL ERROR GIVEN	
1001	1	11.4		whole rock	conventional K-Ar	KA-1001	"4.72E-04, 0.585E-04, 1.19E-04"	0.496		14			age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.412% K; NO ANALYTICAL ERROR GIVEN	
1002	1	7.7		whole rock	conventional K-Ar	KA-1003	"4.72E-04, 0.585E-04, 1.19E-04"	0.439		12			minimum age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.364% K; NO ANALYTICAL ERROR GIVEN	
1003	1	5.2		K feldspar	conventional K-Ar	KA-1005	"4.72E-04, 0.585E-04, 1.19E-04"	10.08		43			age of volcanism		POTASSIUM VALUE PUBLISHED AS 8.37% K; NO ANALYTICAL ERROR GIVEN	
1004	1	36.8		K feldspar	conventional K-Ar	KA-1010	"4.72E-04, 0.585E-04, 1.19E-04"	6.06		96			age of volcanism		POTASSIUM VALUE PUBLISHED AS 5.03% K; NO ANALYTICAL ERROR GIVEN	
1005	1	15.6		sanidine	conventional K-Ar	KA-1017	"4.72E-04, 0.585E-04, 1.19E-04"	5.69		90			age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.72% K; NO ANALYTICAL ERROR GIVEN	
1006	1	2		biotite	conventional K-Ar	KA-1026	"4.72E-04, 0.585E-04, 1.19E-04"	7.23		24			age of volcanism		POTASSIUM VALUE PUBLISHED AS 6.00% K; NO ANALYTICAL ERROR GIVEN	
1007	1	4.1		whole rock	conventional K-Ar	KA-1027	"4.72E-04, 0.585E-04, 1.19E-04"	1.71		12			minimum age of volcanism		POTASSIUM VALUE PUBLISHED AS 1.42% K; NO ANALYTICAL ERROR GIVEN	
1008	1	15.1		sanidine	conventional K-Ar	KA-1029	"4.72E-04, 0.585E-04, 1.19E-04"	4.76		91			age of volcanism		POTASSIUM VALUE PUBLISHED AS 3.95% K; NO ANALYTICAL ERROR GIVEN	
1009	1	14.5		whole rock	conventional K-Ar	KA-1165	"4.72E-04, 0.585E-04, 1.19E-04"	1.643		40			age of volcanism		POTASSIUM VALUE PUBLISHED AS 1.364% K; NO ANALYTICAL ERROR GIVEN	
1010	1	3.48		whole rock	conventional K-Ar	KA-1173	"4.72E-04, 0.585E-04, 1.19E-04"	0.279		8			minimum age of volcanism	CRUSHED BASALT SIZED TO -60 +100 MESH AND THEN LEACHED WITH 5% HF FOR 20 MINUTES TO REMOVE DEVITRIFIED AND ALTERED GROUNDMASS	POTASSIUM VALUE PUBLISHED AS 0.232% K; NO ANALYTICAL ERROR GIVEN	
1011	1	1.36		whole rock	conventional K-Ar	KA-1188	"4.72E-04, 0.585E-04, 1.19E-04"	0.75		44			age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.62% K; NO ANALYTICAL ERROR GIVEN	
1012	1	15.4		whole rock	conventional K-Ar	KA-1203	"4.72E-04, 0.585E-04, 1.19E-04"	0.778		8			age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.646% K; NO ANALYTICAL ERROR GIVEN	
1013	1	6.4		sanidine	conventional K-Ar	KA-1206	"4.72E-04, 0.585E-04, 1.19E-04"	4.643		84			age of volcanism		POTASSIUM VALUE PUBLISHED AS 3.854% K; NO ANALYTICAL ERROR GIVEN	
1014	1	8.9		sanidine	conventional K-Ar	KA-1225	"4.72E-04, 0.585E-04, 1.19E-04"	6.992		98			age of volcanism		POTASSIUM VALUE PUBLISHED AS 5.804% K; NO ANALYTICAL ERROR GIVEN	
1015	1	14.7		plagioclase	conventional K-Ar	KA-1251	"4.72E-04, 0.585E-04, 1.19E-04"	0.367		58			age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.305% K; NO ANALYTICAL ERROR GIVEN	
1016	1	8.1		plagioclase	conventional K-Ar	KA-1262	"4.72E-04, 0.585E-04, 1.19E-04"	0.401		14			age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.333% K; NO ANALYTICAL ERROR GIVEN.	
1017	1	42.7		plagioclase	conventional K-Ar	KA-1274	"4.72E-04, 0.585E-04, 1.19E-04"	1.706		86			age of volcanism		POTASSIUM VALUE PUBLISHED AS 1.416% K; NO ANALYTICAL ERROR GIVEN.	
1018	1	10.7		sanidine	conventional K-Ar	KA-1275	"4.72E-04, 0.585E-04, 1.19E-04"	5.378		31			age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.464% K; NO ANALYTICAL ERROR GIVEN.	
1019	1	11		sanidine	conventional K-Ar	KA-1365	"4.72E-04, 0.585E-04, 1.19E-04"	5.473		94			age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.543% K; NO ANALYTICAL ERROR GIVEN.	
1020	1	12.3		biotite	conventional K-Ar	KA-1368	"4.72E-04, 0.585E-04, 1.19E-04"	3.86		30			age of volcanism		POTASSIUM VALUE PUBLISHED AS 3.204% K; NO ANALYTICAL ERROR GIVEN.	
1020	2	11.5		plagioclase	conventional K-Ar	KA-1372	"4.72E-04, 0.585E-04, 1.19E-04"	0.432		64			age of volcanism		POTASSIUM VALUE PUBLISHED AS 0.359% K;  NO ANALYTICAL ERROR GIVEN.	
1021	1	15.4		sanidine	conventional K-Ar	KA-1380	"4.72E-04, 0.585E-04, 1.19E-04"	10.343		97			age of volcanism		POTASSIUM VALUE PUBLISHED AS 8.586% K; NO ANALYTICAL ERROR GIVEN	
1022	1	10.7		biotite	conventional K-Ar	KA-452	"4.72E-04, 0.585E-04, 1.19E-04"	8.49		36			age of volcanism		POTASSIUM VALUE PUBLISHED AS 7.05% K; NO ANALYTICAL ERROR GIVEN	
1023	1	36.5		andesine	conventional K-Ar	KA-824A	"4.72E-04, 0.585E-04, 1.19E-04"	5.53		86			age of volcanism		POTASSIUM VALUE PUBLISHED AS 4.59% K; NO ANALYTICAL ERROR GIVEN	
1030	1	2431.3	49	muscovite	conventional K-Ar	KD-5	"4.72E-04, 0.584E-04, 1.19E-04*"	10.47	774.6	99			age of intrusion	VERY COARSE MUSCOVITE	POTASSIUM VALUE IS CONVERTED AVERAGE OF 8.61% AND 8.77%; ARGON VALUE IS CONVERTED FROM 0.001736 CC STP	
1030	2	2527.96	51	muscovite	conventional K-Ar	KD-5	"4.72E-04, 0.584E-04, 1.19E-04*"	10.47	832.2	98			age of intrusion	VERY COARSE MUSCOVITE	POTASSIUM VALUE IS CONVERTED AVERAGE OF 8.61% AND 8.77% K; ARGON VALUE IS CONVERTED FROM 0.001865 CC STP	
1031	1	1352.66	27	hornblende	conventional K-Ar	L9	"4.72E-04, 0.584E-04, 1.19E-04*"	1.54	44.66	98			age of intrusion	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 1.28% AND 1.28% K; ARGON VALUE IS CONVERTED FROM 0.0001001 CC	
1032	1	1378.71	28	biotite	conventional K-Ar	L10A	"4.72E-04, 0.584E-04, 1.19E-04*"	6.98	208	97			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM 5.79% K; ARGON VALUE IS CONVERTED FROM 0.000466 CC	
1033	1	1656.96	32	hornblende	conventional K-Ar	L11	"4.72E-04, 0.584E-04, 1.19E-04*"	0.289	11.3	84			age of later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.243% AND 0.236% K; ARGON VALUE IS CONVERTED FROM 0.0000253 CC	
1033	2	1656.96	32	hornblende	conventional K-Ar	L11	"4.72E-04, 0.584E-04, 1.19E-04*"	0.289	11.3	74			age of later metamorphism	-40 +60 MESH	POTASSIUM VALUE IS CONVERTED FROM AVERAGE OF 0.243% AND 0.236% K; ARGON VALUE IS CONVERTED FROM 0.0000253 CC STP	
1035	1	1515.04	30	biotite	conventional K-Ar	L13	"4.72E-04, 0.584E-04, 1.19E-04*"	8.69	297	95			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.19% AND 7.24% K; ARGON VALUE IS CONVERTED FROM 0.000666 CC	
1039	1	1563.35	31	biotite	conventional K-Ar	L27	"4.72E-04, 0.584E-04, 1.19E-04*"	6.73	241	97			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS THE CONVERTED AVERAGE OF 5.62% AND 5.55% K; ARGON VALUE IS CONVERTED FROM 0.000541 CC	
1041	1	1514.19	30	biotite	conventional K-Ar	L29	"4.72E-04, 0.584E-04, 1.19E-04*"	2.28	77.86	96			initial age disturbed by later metamorphism	MOSTLY CHLORITE IN -40 +60 MESH ANALYTICAL MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 1.91% AND 1.88% K; ARGON VALUE IS CONVERTED FROM 0.0001745 CC	
1042	1	1440.68	29	biotite	conventional K-Ar	L32	"4.72E-04, 0.584E-04, 1.19E-04*"	6.52	207	96			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGE OF 5.40% AND 5.43% K; ARGON VALUE IS CONVERTED FROM 0.000464 CC	
1042	2	1654.32	33	muscovite	conventional K-Ar	L32	"4.72E-04, 0.584E-04, 1.19E-04*"	10.05	392	98			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 8.30% AND 8.39% K; ARGON VALUE IS CONVERTED FROM 0.000879 CC STP	
1043	1	1370.18	27	biotite	conventional K-Ar	L16	"4.72E-04, 0.584E-04, 1.19E-04*"	1.79	52.87	87			initial age disturbed by later metamorphism	MOSTLY CHLORITE IN THE -40 +60 MESH ANALYZED MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 1.49% AND 1.49% K; ARGON VALUE IS CONVERTED FROM 0.0001185 CC	
1044	1	1402.55	28	biotite	conventional K-Ar	L18A	"4.72E-04, 0.584E-04, 1.19E-04*"	7.76	237	97			minimum age of intrusion	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 6.48% AND 6.41% K; ARGON VALUE IS CONVERTED FROM 0.000531 CC	
1044	2	1401	28	biotite	conventional K-Ar	L18A	"4.72E-04, 0.584E-04, 1.19E-04*"	7.87	240	97			minimum age of intrusion	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 6.48% AND 6.41% K; ARGON VALUE IS CONVERTED FROM 0.000537 CC STP	
1044	3	1519	30	hornblende	conventional K-Ar	L18A	"4.72E-04, 0.584E-04, 1.19E-04"		27.2				maximum age of intrusion	-40 +60 MESH MATERIAL	"POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.655%, 0.646%, AND 0.660% K; ARGON VALUE IS CONVERTED FROM 0.0000609 CC STP"	
1044	4	1503.66	30	hornblende	conventional K-Ar	L18A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.787	26.6	96			maximum age of intrusion	-40 +60 MESH MATERIAL	"POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.655%, 0.646%, AND 0.660% K; ARGON VALUE IS CONVERTED FROM 0.0000596 CC STP"	
1045	1	1369.03	27	biotite	conventional K-Ar	L19	"4.72E-04, 0.584E-04, 1.19E-04*"	9.22	272	97			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.69% AND 7.61% K; ARGON VALUE IS CONVERTED FROM 0.000609 CC	
1046	1	1819.57	36	hornblende	conventional K-Ar	L23	"4.72E-04, 0.584E-04, 1.19E-04*"	0.294	13.3	93			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.246% AND 0.242% K; ARGON VALUE IS CONVERTED FROM 0.0000299 CC	
1046	2	1819.57	36	hornblende	conventional K-Ar	L23	"4.72E-04, 0.584E-04, 1.19E-04*"	0.294	13.3	69			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.246% AND 0.242% K; ARGON VALUE IS CONVERTED FROM 0.0000299 CC STP	
1047	1	1766.71	35	hornblende	conventional K-Ar	L25	"4.72E-04, 0.584E-04, 1.19E-04*"	0.396	17.1	91			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	"POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.330%, 0.329% AND 0.327% K; ARGON VALUE IS CONVERTED FROM 0.0000384 CC"	
1047	2	1773.29	35	hornblende	conventional K-Ar	L25	"4.72E-04, 0.584E-04, 1.19E-04*"	0.396	17.2	91			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	"POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.330%, 0.329%, AND 0.327% K; ARGON VALUE IS CONVERTED FROM 0.0000386 CC STP"	
1048	1	1479.51	29	biotite	conventional K-Ar	L30	"4.72E-04, 0.584E-04, 1.19E-04*"	0.709	23.4	78			initial age disturbed by later metamorphism	MAINLY CHLORITE IN -40 +60 MESH ANALYZED MATERIAL	POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.589% AND 0.588 K; ARGON VALUE IS CONVERTED FROM 0.0000524 CC	
1048	2	1440.25	29	biotite	conventional K-Ar	L30	"4.72E-04, 0.584E-04, 1.19E-04*"	0.709	22.5	86			initial age disturbed by later metamorphism	MAINLY CHLORITE IN -40 +60 MESH ANALYZED MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGE OF 0.589% AND 0.588% K; ARGON VALUE IS CONVERTED FROM 0.0000504 CC STP	
1049	1	1824.45	36	biotite	conventional K-Ar	L33	"4.72E-04, 0.584E-04, 1.19E-04*"	7.66	348	99			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 6.35% AND 6.37% K; ARGON VALUE IS CONVERTED FROM 0.000779 CC	
1049	2	1804.55	36	biotite	conventional K-Ar	L33	"4.72E-04, 0.584E-04, 1.19E-04*"	7.66	342	92			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 6.35% AND 6.37% K; ARGON VALUE IS CONVERTED FROM 0.000766 CC STP	
1050	1	2228.64	45	biotite	conventional K-Ar	L36	"4.72E-04, 0.584E-04, 1.19E-04*"	6.96	441	98			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 5.84% AND 5.72% K; ARGON VALUE IS CONVERTED FROM 0.000989 CC	
1051	1	1266.2	25	biotite	conventional K-Ar	L37	"4.72E-04, 0.584E-04, 1.19E-04*"	6.13	162	95			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 5.06% AND 5.12% K; ARGON VALUE IS CONVERTED FROM 0.000362 CC	
1052	1	1346.26	27	biotite	conventional K-Ar	L39	"4.72E-04, 0.584E-04, 1.19E-04*"	6.11	176	97			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUUE IS CONVERTED FROM AVERAGED 5.05% AND 5.09% K; ARGON VALUE IS CONVERTED FROM 0.000394 CC	
1053	1	1374.71	27	biotite	conventional K-Ar	L62	"4.72E-04, 0.584E-04, 1.19E-04*"	8.02	238	97			age of intrusion	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 6.64% AND 6.67% K; ARGON VALUE IS CONVERTED FROM 0.000534 CC	
1054	1	1324.39	26	biotite	conventional K-Ar	L63	"4.72E-04, 0.584E-04, 1.19E-04*"	7.71	217	98			age of intrusion	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 6.41% AND 6.39% K; ARGON VALUE IS CONVERTED FROM 0.000486 CC	
1054	2	1388.11	28	biotite	conventional K-Ar	L63	"4.72E-04, 0.584E-04, 1.19E-04*"	7.71	232	90			age of intrusion	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 6.41% AND 6.39% K; ARGON VALUE IS CONVERTED FROM 0.000520 CC STP	
1055	1	926.93	18	biotite	conventional K-Ar	L64	"4.72E-04, 0.584E-04, 1.19E-04*"	0.986	17.2	76			age not evaluated	MAINLY CHLORITE IN THE -40 +60 MESH ANALYZED MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.825% AND 0.812% K; ARGON VALUE IS CONVERTED FROM 0.0000385 CC STP	
1055	2	926.93	18	biotite	conventional K-Ar	L64	"4.72E-04, 0.584E-04, 1.19E-04*"	0.986	17.2	74			age not evaluated	MAINLY CHLORITE IN -40 TO +60 MESH ANALYZED MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.825% AND 0.812% K; ARGON VALUE IS CONVERTED FROM 0.0000386 CC STP	
1056	1	1747.47	35	hornblende	conventional K-Ar	L73	"4.72E-04, 0.584E-04, 1.19E-04*"	1.013	43	93			age of later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.844% AND 0.838% K; ARGON VALUE IS CONVERTED FROM 0.0000964 CC	
1056	2	1757.85	35	hornblende	conventional K-Ar	L73	"4.72E-04, 0.584E-04, 1.19E-04*"	1.013	43.4	96			age of later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FORM AVERAGED 0.844% AND 0.838% K; ARGON VALUE IS CONVERTED FROM 0.0000973 CC STP	
1056	3	1755.26	35	hornblende	conventional K-Ar	L73	"4.72E-04, 0.584E-04, 1.19E-04*"	1.013	43.3	92			age of later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.844% AND 0.838% K; ARGON VALUE IS CONVERTED FROM 0.0000971 CC STP	
1057	1	1716.76	34	hornblende	conventional K-Ar	L74	"4.72E-04, 0.584E-04, 1.19E-04*"	0.402	16.6	90			age of later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.328% AND 0.339% K; ARGON VALUE IS CONVERTED FROM 0.0000372 CC	
1057	2	1703.37	34	hornblende	conventional K-Ar	L74	"4.72E-04, 0.584E-04, 1.19E-04*"	0.402	16.4	75			age of later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.328% AND 0.339% K; ARGON VALUE IS CONVERTED FROM 0.0000367 CC STP	
1058	1	1742.99	35	hornblende	conventional K-Ar	L75	"4.72E-04, 0.584E-04, 1.19E-04*"	0.395	16.7	88			age of later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.328% AND 0.327% K; ARGON VALUE IS CONVERTED FROM 0.0000374 CC	
1058	2	1762.95	35	hornblende	conventional K-Ar	L75	"4.72E-04, 0.584E-04, 1.19E-04*"	0.395	17	95			age of later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.328% AND 0.327% K; ARGON VALUE IS CONVERTED FROM 0.0000380 CC STP	
1059	1	1706.42	34	hornblende	conventional K-Ar	L76	"4.72E-04, 0.584E-04, 1.19E-04*"	0.396	16.2	94			age of later metamorphism	-40 +60 MESH MATERIAL	"POTASSIUM VALUE IS CONVERTED FROM 0.333%, 0.325%, AND 0.328% K; ARGON VALUE IS CONVERTED FROM 0.0000362 CC"	
1059	2	1685.87	34	hornblende	conventional K-Ar	L76	"4.72E-04, 0.584E-04, 1.19E-04*"	0.396	15.9	71			age of later metamorphism	-40 +60 MESH MATERIAL	"POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.333%, 0.325%, AND 0.328% K; ARGON VALUE IS CONVERTED FROM 0.0000357 CC STP"	
1060	1	1358.31	27	hornblende	conventional K-Ar	L80	"4.72E-04, 0.584E-04, 1.19E-04*"	1.45	42.3	98			age of intrusion	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGE OF 1.21% AND 1.19% K; ARGON VALUE IS CONVERTED FROM 0.0000948 CC	
1061	1	1353.25	27	biotite	conventional K-Ar	L82	"4.72E-04, 0.584E-04, 1.19E-04*"	6.72	195	98			age of intrusion	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 5.55% AND 5.61% K; ARGON VALUE IS CONVERTED FROM 0.000436 CC	
1062	1	1374.89	27	hornblende	conventional K-Ar	L82	"4.72E-04, 0.584E-04, 1.19E-04*"	1.57	46.6	97			age of intrusion	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 1.30% AND 1.31% K; ARGON VALUE IS CONVERTED FROM 0.0001045 CC	
1063	1	1380.6	27	biotite	conventional K-Ar	M40A	"4.72E-04, 0.584E-04, 1.19E-04*"	8.44	252	96			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 6.95% AND 7.07% K; ARGON IS CONVERTED FROM 0.000564 CC	
1064	1	1329.06	26	biotite	conventional K-Ar	M45	"4.72E-04, 0.584E-04, 1.19E-04*"	7.99	226	97			initial age disturbed by later metamorphism	40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 6.65% AND 6.62% K; ARGON VALUE IS CONVERTED FROM 0.000506 CC	
1065	1	1301.68	26	biotite	conventional K-Ar	M48	"4.72E-04, 0.584E-04, 1.19E-04*"	2.05	56.31	85			minimum age of intrusion	MAINLY CHLORITE IN THE -40 +60 MESH ANALYZED MATERIAL	"POTASSIUM VALUE IS CONVERTED FROM AVERAGED 1.72%, 1.68% AND 1.70% K; ARGON VALUE IS CONVERTED FROM 0.0001262 CC"	
1065	2	1265.25	25	biotite	conventional K-Ar	M48	"4.72E-04, 0.584E-04, 1.19E-04*"	2.05	54.12	95			minimum age of intrusion	MAINLY CHLORITE IN THE -40 +60 MESH ANALYZED MATERIAL	"POTASSIUM VALUE IS CONVERTED FROM AVERAGED 1.72%, 1.68%, AND 1.70% K; ARGON VALUE IS CONVERTED FROM 0.0001213 CC STP"	
1066	1	1401.95	28	biotite	conventional K-Ar	M61D	"4.72E-04, 0.584E-04, 1.19E-04*"	8.42	257	97			initial age disturbed by later metamorphism	-40 +60 MESH MATERIAL	POTASSIUM VALUE IS CONVERTED FROM AVERAGED 6.99% AND 6.99% K; ARGON VALUE IS CONVERTED FROM 0.000575 CC	
1067	1	1689.64	34	hornblende	conventional K-Ar	M80	"4.72E-04, 0.584E-04, 1.19E-04*"	0.345	13.9	86			age of later metamorphism	-40 +60 MESH MATERIAL	"POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.289%, 0.269% AND 0.300% K; ARGON VALUE IS CONVERTED FROM 0.0000312 CC"	
1067	2	1705.36	34	hornblende	conventional K-Ar	M80	"4.72E-04, 0.584E-04, 1.19E-04*"	0.345	14.1	97			age of later metamorphism	-40 +60 MESH MATERIAL	"POTASSIUM VALUE IS CONVERTED FROM AVERAGED 0.289%, 0.269%, AND 0.300% K; ARGON VALUE IS CONVERTED FROM 0.0000315"	
1068	1	1627.62	32	hornblende	conventional K-Ar	M81	"4.72E-04, 0.584E-04, 1.19E-04*"	2.37	90.18	96			age of later metamorphism	-40 +60 MESH MATERIAL CONTAINED TRACES OF BIOTITE AND CHLORITE	"POTASSIUM VALUE IS CONVERTED FROM AVERAGED 1.99%, 1.92% AND 2.00% K; ARGON VALUE IS CONVERTED FROM 0.0002021 CC"	
1073	1	58		glauconite	conventional K-Ar	G-3221	"4.72E-04, 0.585E-04, 1.19E-04"	7.48		68			maximum age of volcanism		AR-40/K-40 RATIO EQUALS 0.00346; NO ANALYTICAL ERROR GIVEN; POTASSIUM VALUE IS CONVERTED 6.21% K	
1074	1	393		glauconite	conventional K-Ar	G-3222	"4.72E-04, 0.585E-04, 1.19E-04"	6.69		95					AR-40/K-40 RATIO EQUALS 0.0256; NO ANALYTICAL ERROR GIVEN; POTASSIUM VALUE IS CONVERTED 5.78% K	AGE IS TOO YOUNG
1075	1	451		glauconite	conventional K-Ar	G-3223	"4.72E-04, 0.584E-04, 1.19E-04"	6.48		95					AR-40/K-40 RATIO EQUALS 0.0298; NO ANALYTICAL ERROR GIVEN; POTASSIUM VALUE IS CONVERTED 5.38% K.	AGE IS TOO YOUNG
1076	1	439		glauconite	conventional K-Ar	G-3227	"4.72E-04, 0.585E-04, 1.19E-04"	7		97					AR-40/K-40 RATIO EQUALS 0.0289; NO ANALYTICAL ERROR GIVEN; POTASSIUM VALUE IS CONVERTED 5.81% K	AGE IS TOO YOUNG
1077	1	90	10	glauconite	conventional K-Ar	G-3242	"4.72E-04, 0.585E-04, 1.19E-04"	7.05		80			age of volcanism		AR-40/K-40 RATIO EQUALS 0.0055; POTASSIUM VALUE IS CONVERTED 5.85% K.	
1078	1	50		glauconite	conventional K-Ar	G-3261	"4.72E-04, 0.585E-04, 1.19E-04"	4.36					age of volcanism		AR-40/K-40 RATIO IS 0.0029; NO ANALYTICAL ERROR GIVEN; POTASSIUM VALUE IS CONVERTED 3.62% K.	
1078	2			Unk			"4.72E-04, 0.585E-04, 1.19E-04"			74						
1079	1	459		glauconite	conventional K-Ar	G-6267	"4.72E-04, 0.585E-04, 1.19E-04"	6.9		94					AR-40/K-40 RATIO EQUALS 0.0304; NO ANALYTICAL ERROR GIVEN; POTASSIUM VALUE IS CONVERTED 5.73% K	AGE IS TOO YOUNG
1080	1	330		glauconite	conventional K-Ar	G-3268	"4.72E-04, 0.585E-04, 1.19E-04"	5.83		93					POTASSIUM VALUE IS CONVERTED 4.84% K; AR-40/K-40 RATIO IS 0.211; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1081	1	247		glauconite	conventional K-Ar	G-3277	"4.72E-04, 0.585E-04, 1.19E-04"	4.26		79					AR-40/K-40 RATIO IS 0.0155; NO ANALYTICAL ERROR GIVEN; POTASSIUM VALUE IS CONVERTED 3.54% K	AGE IS TOO YOUNG
1082	1	421		glauconite	conventional K-Ar	G-3280	"4.72E-04, 0.585E-04, 1.19E-04"	8.1		98				99% GLAUCONITE	AR-40/K-40 RATIO EQUALS 0.276; NO ANALYTICAL ERROR GIVEN; POTASSIUM VALUE CONVERTED FROM 6.72% K	AGE IS TOO YOUNG
1082	2	435		glauconite	conventional K-Ar	G-3280 (2)	"4.72E-04, 0.585E-04, 1.19E-04"	8.11		91				GLAUCONITE LEACHED WITH 25% ACETIC ACID FOR 24 HOURS BEFORE ANALYSIS	POTASSIUM VALUE CONVERTED FROM 6.73% K; AR-40/K-40 RATIO IS 0.0286; NO ANALYTICAL ERROR GIVEN.	AGE IS TOO YOUNG
1082	3	432		glauconite	conventional K-Ar	G-3280 (4)	"4.72E-04, 0.585E-04, 1.19E-04"	8.05		96				GLAUCONITE HEATED AT 100 DEGREES C IN AIR FOR 24 HOURS BEFORE ANALYSIS	POTASSIUM VALUE IS CONVERTED 6.68% K; AR-40/K-40 RATIO IS 0.0284; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1082	4	433		glauconite	conventional K-Ar	G-3280 (4)	"4.72E-04, 0.585E-04, 1.19E-04"	8.05		95				GLAUCONITE HEATED AT 100 DEGREES C IN AIR FOR 24 HOURS BEFORE ANALYSIS	POTASSIUM VALUE IS CONVERTED 6.68% K; AR-40/K-40 RATIO IS 0.0285; NO ANALYTICAL ERROR GIVEN.	AGE IS TOO YOUNG
1082	5	420		glauconite	conventional K-Ar	G-3280 (4)	"4.72E-04, 0.585E-04, 1.19E-04"	8.05		97				GLAUCONITE HEATED AT 100 DEGREES C IN AIR FOR 24 HOURS BEFORE ANALYSIS	POTASSIUM VALUE IS CONVERTED 6.68% K; AR-40/K-40 RATIO IS 0.0274; NO ANALYTICAL ERROR GIVEN.	AGE IS TOO YOUNG; SEE RECORD 1186 FOR SIXTH K-AR AGE
1083	1	436		glauconite	conventional K-Ar	G-3281	"4.72E-04, 0.585E-04, 1.19E-04"	8.18		98					POTASSIUM VALUE IS CONVERTED 6.79% K; AR-40/K-40 RATIO IS 0.0287; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1084	1	422		glauconite	conventional K-Ar	G-3282	"4.72E-04, 0.585E-04, 1.19E-04"	7.58		96					POTASSIUM VALUE IS CONVERTED 6.29% K; AR-40/K-40 RATIO IS 0.0277; NO ANALYTICAL ERROR GIVEN.	AGE IS TOO YOUNG
1085	1	411	15	glauconite	conventional K-Ar	G-3283	"4.72E-04, 0.585E-04, 1.19E-04"	7.58		97					POTASSIUM VALUE IS CONVERTED 6.29% K; AR-40/K-40 RATIO IS 0.0269	AGE &S TOO 0OU-G
1086	1	434		glauconite	conventional K-Ar	G-3286	"4.72E-04, 0.585E-04, 1.19E-04"	7.37		95					POTASSIUM VALUE IS CONVERTED 6.12% K; AR-40/K-40 RATIO IS 0.0285; NO ANALYTICAL ERROR GIVEN	AGE TOO YOUNG
1087	1	455		glauconite	conventional K-Ar	G-3287	"4.72E-04, 0.585E-04, 1.19E-04"	7.11		96					POTASSIUM VALUE IS CONVERTED 5.90% K; AR-40/K-40 RATIO IS 0.300; NO ANALYTICAL ERROR GIVEN	AGE TOO YOUNG
1087	2	447		glauconite	conventional K-Ar	G-3287	"4.72E-04, 0.585E-04, 1.19E-04"	7.11		91					POTASSIUM VALUE IS CONVERTED 5.90% K; AR-40/K-40 RATIO IS 0.0295; NO ANALYTICAL ERROR GIVEN	AGE TOO YOUNG
1088	1	423		glauconite	conventional K-Ar	G-3288	"4.72E-04, 0.585E-04, 1.19E-04"	5.69		96					POTASSIUM  VALUE IS CONVERTED 4.72% K; AR-40/K-40 RATIO IS 0.0277; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1089	1	423		glauconite	conventional K-Ar	G-3578	"4.72E-04, 0.585E-04, 1.19E-04"	5.69		97					POTASSIUM VALUE IS CONVERTED 4.72% K; AR-40/K-40 RATIO IS 0.0277; NO ANALYTICAL ERROR GIVEN	AGE TOO YOUNG
1090	1	448		glauconite	conventional K-Ar	G-3580	"4.72E-04, 0.585E-04, 1.19E-04"	6.73		96					POTASSIUM VALUE IS CONVERTED 5.59% K; AR-40/K-40 RATIO IS 0.0296; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1091	1	427		glauconite	conventional K-Ar	G-8532	"4.72E-04, 0.585E-04, 1.19E-04"	7.32		98					POTASSIUM VALUE IS CONVERTED 6.08% K; AR40/K-40 RATIO IS 0.0280; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1092	1	417		glauconite	conventional K-Ar	G-3583	"4.72E-04, 0.585E-04, 1.19E-04"	4.16		83					POTASSIUM VALUE IS CONVERTED 3.45% K; AR-40/K-40 RATIO IS 0.0273; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1093	1	284	30	glauconite	conventional K-Ar	G-3585	"4.72E-04, 0.585E-04, 1.19E-04"	5.83		34					POTASSIUM VALUE IS CONVERTED 4.84% K; AR-40/K-40 RATIO IS 0.0180	AGE IS TOO YOUNG
1094	1	278	12	glauconite	conventional K-Ar	G-3586	"4.72E-04, 0.585E-04, 1.19E-04"	5.4		81					POTASSIUM VALUE IS CONVERTED 4.48% K; AR-40/K-40 RATIO IS 0.0176	AGE IS TOO YOUNG
1094	2	250		glauconite	conventional K-Ar	G-3586	"4.72E-04, 0.585E-04, 1.19E-04"	5.4		88					POTASSIUM VALUE IS CONVERTED 4.48% K; AR-40/K-40 RATIO IS 0.0157; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1094	3	260		glauconite	conventional K-Ar	G-3586	"4.72E-04, 0.585E-04, 1.19E-04"	5.4		85					POTASSIUM VALUE IS CONVERTED 4.48% K; AR-40/K-40 RATIO IS 0.0164; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1095	1	60		glauconite	conventional K-Ar	G-3694	"4.72E-04, 0.585E-04, 1.19E-04"	6.41		45			minimum age of intrusion		POTASSIUM VALUE IS CONVERTED 5.32% K; AR-40/K-40 RATIO IS 0.00346; NO ANALYTICAL ERROR GIVEN	
1096	1	410		glauconite	conventional K-Ar	G-3347	"4.72E-04, 0.585E-04, 1.19E-04"	3.63		100					POTASSIUM VALUE IS CONVERTED 3.01% K; AR-40/K-40 RATIO IS 0.0272; NO ANALYTICAL ERROR GIVEN	AGE IS TOO YOUNG
1108	1	2098.79	80	biotite	conventional K-Ar	M 5238A	"4.72E-04, 0.584E-04, 1.18E-04*"	9.36	535	91			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.34 MM	POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.88% AND 7.66% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.0012 AND 0.0012 CC; OTHER RADIOGENIC ARGON VALUE IS 97%.	SAMPLE COLLECTED 3.0 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1108	2	1159.22	50	K feldspar	conventional K-Ar	M 5238A	"4.72E-04, 0.584E-04, 1.18E-04*"	10.38	243	93			initial age disturbed by later metamorphism		ARGON VALUE IS CONVERTED AVERAGE OF 0.000532 AND 0.000558 CC; OTHER RADIOGENIC ARGON VALUE IS 97%; POTASSIUM VALUE IS CONVERTED 8.62% K	SAMPLE COLLECTED 3.0 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1109	1	2058.49	80	biotite	conventional K-Ar	M 5240A	"4.72E-04, 0.584E-04, 1.18E-04*"	8.55	473	97			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 1.8 MM	POTASSIUM VALUE IS CONVERTED 7.10% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00103 AND 0.0010 CC; OTHER RADIOGENIC VALUE IS 98%	SAMPLE COLLECTED 2.9 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1109	2	2083.76	80	biotite	conventional K-Ar	M 5240A	"4.72E-04, 0.584E-04, 1.18E-04*"	10.59	598	98			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.95 MM	ARGON VALUE IS CONVERTED AVERAGE OF 0.00137 AND 0.00131 CC; POTASSIUM VALUE IS CONVERTED 8.79% K (THIS IS A VERY HIGH VALUE FOR PATASSIUM CONTENT FOR BIOTITE--COMPILER.)	SAMPLE COLLECTED 2.9 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1109	3	1887.79	80	biotite	conventional K-Ar	M 5240A	"4.72E-04, 0.584E-04, 1.18E-04*"	9.17	440	49			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.41 MM	POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.85% AND 7.38% K; ARGON VALUE IS CONVERTED 0.000987 CC	SAMPLE COLLECTED 2.9 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1109	4	1512.2	60	biotite	conventional K-Ar	M 5240A	"4.72E-04, 0.584E-04, 1.18E-04*"	8.45	288	96			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.17 MM	"POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.00% AND 7.03% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.000624, 0.000662, AND 0.000653 CC; OTHER RADIOGENIC ARGON VALUES ARE 97% AND 97%."	SAMPLE COLLECTED 2.9 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT.
1109	5	1910	80	biotite	conventional K-Ar	M 5240A	"4.72E-04, 0.584E-04, 1.18E-04"						initial age disturbed by later metamorphism	BIOTITE GROUND FROM A MEAN GRAIN DIAMETER OF 0.41 MM TO 0.18 MM	NO ANALYTICAL DATA GIVEN	SAMPLE COLLECTED 2.9 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1110	1	2381.18	100	biotite	conventional K-Ar	M 5243	"4.72E-04, 0.584E-04, 1.18E-04*"	8.52	607	99			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.53 MM	"POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.05%, 7.07%, AND 7.09% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00141 AND 0.00132 CC; THE OTHER RADIOGENIC ARGON VALUE IS 99%."	SAMPLE COLLECTED 3.5 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1114	1	1166.61	50	biotite	conventional K-Ar	M 5252	"4.72E-04, 0.584E-04, 1.18E-04*"	6.31	149	89			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.40 MM	POTASSIUM VALUE IS CONVERTED AVERAGE OF 5.37% AND 5.11% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.000325; 0.000331; AND 0.000345 CC; OTHER RADIOGENIC ARGON VALUES ARE 92% AND 92%	SAMPLE COLLECTED 2.1 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1114	2	1222.58	50	K feldspar	conventional K-Ar	M 5252	"4.72E-04, 0.584E-04, 1.18E-04*"	14.22	358	90			initial age disturbed by later metamorphism		ARGON VALUE IS CONVERTED AVERAGE OF 0.000786 AND 0.000817 CC; OTHER RADIOGENIC ARGON VALUE IS 97%; POTASSIUM VALUE IS CONVERTED 11.80% K	SAMPLE COLLECTED 2.1 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1115	1	1117.21	40	biotite	conventional K-Ar	M5254	"4.72E-04, 0.584E-04, 1.18E-04*"	8.62	192	98			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.36 MM	POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.03% AND 7.28% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.000426 AND 0.000433 CC	SAMPLE COLLECTED 0.06 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1116	1	1674.14	70	biotite	conventional K-Ar	M5299	"4.72E-04, 0.584E-04, 1.18E-04*"	8.66	344	97			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.26 MM	POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.21% AND 7.17% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.000770 AND 0.000771 CC; OTHER RADIOGEN ARGON VALUE IS 98%	SAMPLE COLLECTED 2.7 KM FROM INFERRED DULUTH GABBRO-KNIFE LAKE METASEDIMENT CONTACT
1116	2	1320.66	50	biotite	conventional K-Ar	M5299G	"4.72E-04, 0.584E-04, 1.18E-04*"	7.17	201	99			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.12 MM	ARGON VALUE IS CONVERTED 0.000450 CC; POTASSIUM VALUE IS CONVERTED 5.95% K	SAMPLE COLLECTED 2.7 KM FROM INFERRED DULUTH GABBRO-KNIFE LAKE METASEDIMENT CONTACT
1117	1	1775.22	70	biotite	conventional K-Ar	M7001	"4.72E-04, 0.584E-04, 1.18E-04*"	8.55	372	97			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.80 MM	POTASSIUM VALUE IS CONVERTED 7.10% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.000851 AND 0.000816 CC; OTHER RADIOGENIC ARGON VALUE IS 95%	SAMPLE COLLECTED 2.4 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1118	1	1281.4	50	biotite	conventional K-Ar	M7003	"4.72E-04, 0.584E-04, 1.18E-04*"	8.82	237	93			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.80 MM	ARGON VALUE IS CONVERTED 0.000531 CC; POTASSIUM VALUE IS CONVERTED 7.32% K	SAMPLE COLLECTED 2.2 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1119	1	1615.52	60	biotite	conventional K-Ar	M7007	"4.72E-04, 0.584E-04, 1.18E-04*"	7.15	269	98			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.38 MM	POTASSIUM VALUE IS CONVERTED AVERAGE OF 6.00% AND 5.87% K; ARGON VALUE IS CONVERTED 0.000603 CC	SAMPLE COLLECTED 2.3 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1120	1	1909.89	80	biotite	conventional K-Ar	M7011	"4.72E-04, 0.584E-04, 1.18E-04*"	9.04	442	97			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.55 MM	POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.54% AND 7.47% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.000990 AND 0.000992 CC; OTHER RADIOGENIC ARGON VALUE IS 99%	SAMPLE COLLECTED 2.6 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1120	2	1392.24	60	K feldspar	conventional K-Ar	M7011	"4.72E-04, 0.584E-04, 1.18E-04*"	10.49	317	93			initial age disturbed by later metamorphism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 8.40% AND 9.02% K;  ARGON VALUE IS CONVERTED AVERAGE OF 0.000703 AND 0.000718 CC; OTHER RADIOGENIC ARGON VALUE IS 98%	SAMPLE COLLECTED 2.6 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1121	1	1133.08	50	biotite	conventional K-Ar	M7018	"4.72E-04, 0.584E-04, 1.18E-04*"	8.37	190	92			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.54 MM	"POTASSIUM VALUE IS CONVERTED 6.95% K; ARGON VALUE IS CONVERTED AVERAGED 0.000430, 0.000423, AND 0.000427 CC; OTHER RADIOGENIC ARGON VALUES ARE 98% AND 97%"	SAMPLE COLLECTED 2.1 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1123	1	1077.35	40	biotite	conventional K-Ar	M7030	"4.72E-04, 0.584E-04, 1.18E-04*"	8.2	174	97			initial age disturbed by later metamorphism	MEAN GRAIN DIAMETER IS 0.31  MM	ARGON VALUE IS CONVERTED 0.000391 CC;  POTASSIUM VALUE IS CONVERTED 6.81% K	AGE IS PROBABLY SAME AS AGE OF DULUTH GABBRO; SAMPLE COLLECTED 1.7 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1124	1	2524.14	100	hornblende	conventional K-Ar	M7032	"4.72E-04, 0.584E-04, 1.18E-04*"	0.704	55.8	94			minimum age of intrusion		ARGON VALUE IS CONVERTED 0.000125 CC; POTASSIUM VALUE IS CONVERTED 0.584% K	SAMPLE COLLECTED 2.1 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1125	1	2595.42	100	biotite	conventional K-Ar	M7041B	"4.72E-04, 0.584E-04, 1.18E-04*"	7.88	658	99			age of intrusion	MEAN GRAIN DIAMETER IS 3.16 MM	POTASSIUM VALUE IS CONVERTED 6.54% K;  ARGON VALUE IS CONVERTED AVERAGED 0.00151 AND 0.00144 CC; OTHER RADIOGENIC ARGON VALUE IS 99%; RUBIDIUM CONTENT IS 453 PPM	SAMPLE COLLECTED 4.7 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1126	1	2565.48	100	biotite	conventional K-Ar	M7058	"4.72E-04, 0.584E-04, 1.18E-04*"	9.29	759	99			age of intrusion	MEAN GRAIN DIAMETER IS 0.34 MM	POTASSIUM VALUE IS CONVERTED 7.71% K; ARGON VALUE IS CONVERTED AVERAGED 0.00172 AND 0.00168 CC;  OTHER RADIOGENIC ARGON VALUE IS 99%	SAMPLE COLLECTED 5.0 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1126	2	1564.59	60	K feldspar	conventional K-Ar	M7058	"4.72E-04, 0.584E-04, 1.18E-04*"	11.91	427	98					ARGON VALUE IS CONVERTED 0.000958 CC; RUBIDIUM CONTENT IS 178 PPM; POTASSIUM VALUE IS CONVERTED 9.89% K	K-FELDSPAR DOES NOT QUANTITATIVELY RETAIN RADIOGENIC ARGON; SAMPLE COLLECTED 5.0 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1127	1	2425.81	100	muscovite	conventional K-Ar	M7031B	"4.72E-04, 0.584E-04, 1.18E-04*"	10.41	767	99			initial age disturbed by later metamorphism		POTASSIUM VALUE IS CONVERTED 8.64% K;  ARGON VALUE IS CONVERTED AVERAGED 0.00171 AND 0.00173 CC; ANOTHER RADIOGENIC ARGON VALUE IS 98%	SAMPLE COLLECTED 1.75 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1128	1	2594.54	100	muscovite	conventional K-Ar	M7045A	"4.72E-04, 0.584E-04, 1.18E-04*"	8.64	721	98			age of intrusion		POTASSIUM VALUE IS CONVERTED 7.17% K; ARGON VALUE IS CONVERTED AVERAGED 0.00162 AND 0.00161 CC; ANOTHER RADIOGENIC ARGON VALUE IS 99%	SAMPLE COLLECTED 5.0 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1129	1	1543.03	60	K feldspar	conventional K-Ar	M7046	"4.72E-04, 0.584E-04, 1.18E-04*"	4.67	164	95					POTASSIUM VALUE IS CONVERTED 3.88% K; ARGON VALUE IS CONVERTED AVERAGED 0.000364 AND 0.000373 CC; ANOTHER RADIOGENIC ARGON VALUE IS 97%	AGE TOO YOUNG; SAMPLE COLLECTED 4.3 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1130	1	2462.01	100	muscovite	conventional K-Ar	M7047	"4.72E-04, 0.584E-04, 1.18E-04*"	10.37	785	99			initial age disturbed by later metamorphism		ARGON VALUE IS CONVERTED 0.00176 CC; POTASSIUM VALUE IS CONVERTED 8.61% K	SAMPLE COLLECTED 3.25 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1131	1	1854.04	70	muscovite	conventional K-Ar	M7061	"4.72E-04, 0.584E-04, 1.18E-04*"	9.74	454	98			initial age disturbed by later metamorphism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 7.99% AND 8.18% K; ARGON VALUE IS CONVERTED AVERAGED 0.000985 AND 0.00105 CC;  ANOTHER RADIOGENIC ARGON VALUE IS 99%	SAMPLE COLLECTED 1.25 KM FROM INFERRED DULUTH GABBRO OVERHEAD CONTACT
1132	1	2776.33	110	hornblende	conventional K-Ar	M5287	"4.72E-04, 0.584E-04, 1.18E-04*"	0.606	57.6	96			maximum age of intrusion		ARGON VALUE IS CONVERTED 0.000129 CC; POTASSIUM VALUE IS CONVERTED 0.503% K	SAMPLE COLLECTED 1.8 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1133	1	1755.3	70	hornblende	conventional K-Ar	M7028	"4.72E-04, 0.584E-04, 1.18E-04*"	0.641	27.4	94			initial age disturbed by later metamorphism		ARGON VALUE IS CONVERTED 0.0000614 CC; POTASSIUM VALUE IS CONVERTED 0.532% K	SAMPLE COLLECTED 0.35 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1134	1	1444.56	60	hornblende	conventional K-Ar	M7069	"4.72E-04, 0.584E-04, 1.18E-04*"	0.299	9.53	76			initial age disturbed by later metamorphism	10% PYROXENE IMPURITY	POTASSIUM VALUE IS CONVERTED 0.248% K; ARGON VALUE IS CONVERTED AVERAGED 0.0000224 AND 0.0000203 CC; ANOTHER RADIOGENIC ARGON VALUE IS 82%; AGE CORRECTED FOR 10% PYROXENE IMPURITY--AGE IS 1450 M.Y. UNCORECTED	SAMPLE COLLECTED AT DULUTH-SNOWBANK STOCK CONTACT
1134	2	1064.74	40	K feldspar	conventional K-Ar	M7069	"4.72E-04, 0.584E-04, 1.18E-04*"	3.48	72.7	96			initial age disturbed by later metamorphism		ARGON VALUE IS CONVERTED 0.000163 CC; POTASSIUM VALUE IS CONVERTED 2.89% K	SAMPLE COLLECTED AT DULUTH GABBRO-SNOWBANK STOCK CONTACT
1134	3	2955.88	120	pyroxenes	conventional K-Ar	M7069	"4.72E-04, 0.584E-04, 1.18E-04*"	0.07	7.54	88			"sample contains excess radiogenic argon, age is too old"		ARGON VALUE IS CONVERTED 0.0000169 CC; POTASSIUM VALUE IS CONVERTED 0.058% K	SAMPLE COLLECTED AT DULUTH GABBRO-SNOWBANK STOCK CONTACT
1135	1	1762.69	70	hornblende	conventional K-Ar	M7080	"4.72E-04, 0.584E-04, 1.18E-04*"	0.251	10.8	92			initial age disturbed by later metamorphism		POTASSIUM VALUE IS CONVERTED 0.208% K; ARGON VALUE IS CONVERTED AVERAGED 0.0000237 AND 0.0000245 CC; ANOTHER RADIOGENIC ARGON VALUE IS 96%	SAMPLE COLLECTED 0.12 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1136	1	1062.91	40	K feldspar	conventional K-Ar	M5284	"4.72E-04, 0.584E-04, 1.18E-04*"	8.3	173	94			initial age disturbed by later metamorphism		ARGON VALUE IS CONVERTED 0.000387 CC; POTASSIUM VALUE IS CONVERTED 6.89% K	AGE IS PROBABLY THE SAME AS AGE OF DULUTH GABBRO; SAMPLE COLLECTED 0.9 KM FROM INFERRED DULUTH GABBRO-SNOWBANK STOCK CONTACT
1137	1	37.81	1	biotite	conventional K-Ar	L-969	"4.72E-04, 0.585E-04, 1.19E-04*"	8.89	4.89	86		McDowell (1971)	age of intrusion		POTASSIUM VALUE IS CONVERTED 7.38% K	
1138	1	105.12	3	hornblende	conventional K-Ar	L-958	"4.72E-04, 0.585E-04, 1.19E-04*"	1.54	2.4	87		McDowell (1971)	age of intrusion		POTASSIUM VALUE IS CONVERTED 1.28% K	
1139	1	111.07	3	hornblende	conventional K-Ar	L-959	"4.72E-04, 0.585E-04, 1.19E-04*"	1.34	2.21	62		McDowell (1971)	age of intrusion		POTASSIUM VALUE IS CONVERTED 1.11% K	
1140	1	111.28	3	hornblende	conventional K-Ar	L-961	"4.72E-04, 0.585E-04, 1.19E-04*"	0.829	1.37	89		McDowell (1971)	age of intrusion		POTASSIUM VALUE IS CONVERTED 0.688% K	
1141	1	109.35	4	hornblende	conventional K-Ar	L-960	"4.72E-04, 0.585E-04, 1.19E-04*"	1.22	1.98	38		McDowell (1971)	age of intrusion		POTASSIUM VALUE IS CONVERTED 1.01% K	
1142	1	116.84	3	biotite	conventional K-Ar	L-962	"4.72E-04, 0.585E-04, 1.19E-04*"	6.445	11.2	91		McDowell (1971)	age of intrusion		POTASSIUM VALUE IS CONVERTED 5.35% K	
1142	2	109.4	3	hornblende	conventional K-Ar	L-962	"4.72E-04, 0.585E-04, 1.19E-04*"	1.01	1.64	90		McDowell (1971)	age of intrusion		POTASSIUM VALUE IS CONVERTED 0.836% K	
1143	1	113.42	3	biotite	conventional K-Ar	L-1013	"4.72E-04, 0.585E-04, 1.19E-04*"	8.9	15	90		McDowell (1971)			POTASSIUM VALUE IS CONVERTED 7.39% K	AGE OF HYDROTHERMAL ALTERATION
1144	1	111.12	3	biotite	conventional K-Ar	L-1014	"4.72E-04, 0.585E-04, 1.19E-04*"	10.06	16.6	96		McDowell (1971)			POTASSIUM VALUE IS CONVERTED 8.35% K	AGE OF HYDROTHERMAL ALTERATION
1145	1	74.74	2	biotite	conventional K-Ar	L-957	"4.72E-04, 0.585E-04, 1.19E-04*"	8.72	9.58	79		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 7.24% K	
1146	1	117.69	3	biotite	conventional K-Ar	L-1027	"4.72E-04, 0.585E-04, 1.19E-04*"	8.11	14.2	93		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 6.73% K	
1146	2	126.46	4	hornblende	conventional K-Ar	L-1027	"4.72E-04, 0.585E-04, 1.19E-04*"	1.14	2.15	83		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 0.947% K	
1147	1	78.58	3	biotite	conventional K-Ar	L-1028	"4.72E-04, 0.585E-04, 1.19E-04*"	8.57	9.91	89		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 7.11% K	
1148	1	44.07	2	biotite	conventional K-Ar	L-1029	"4.72E-04, 0.585E-04, 1.19E-04*"	8.05	5.17	85		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 6.68% K	
1149	1	50.36	2	biotite	conventional K-Ar	L-1121	"4.72E-04, 0.585E-04, 1.19E-04*"	8.31	6.11	87		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 6.90% K	
1150	1	159.21	6	hornblende	conventional K-Ar	L-1122	"4.72E-04, 0.585E-04, 1.19E-04*"	0.434	1.04	66		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 0.360% K	
1151	1	44.62	2	biotite	conventional K-Ar	L-1123	"4.72E-04, 0.585E-04, 1.19E-04*"	7.58	4.93	79		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 6.29% K	
1152	1	39.18	2	biotite	conventional K-Ar	L-953	"4.72E-04, 0.585E-04, 1.19E-04*"	8.26	4.71	84		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 6.86% K	
1153	1	42.85	2	biotite	conventional K-Ar	L-954	"4.72E-04, 0.585E-04, 1.19E-04*"	8.89	5.55	72		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 7.38% K	
1154	1	61.9	2	biotite	conventional K-Ar	L-1026	"4.72E-04, 0.585E-04, 1.19E-04*"	9.54	8.65	87		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 7.92% K	
1155	1	56.05	2	muscovite	conventional K-Ar	L-1120	"4.72E-04, 0.585E-04, 1.19E-04*"	10.37	8.5	88		McDowell (1971)	age not evaluated		POTASSIUM VALUE IS CONVERTED 8.61% K	
1156	1	1720		hornblende	conventional K-Ar	3798	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of metamorphic crystallization		NO ANALYTICAL DATA GIVEN	"AGE TAKEN FROM ARTICLE BY BURWASH, BAADSGAARD, AND PETERMAN, 1962"
1156	2	1770		hornblende	conventional K-Ar	3798	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of metamorphic crystallization		NO ANALYTICAL DATA GIVEN	"AGE TAKEN FROM ARTICLE BY BURWASH, BAADSGARRD, AND PETERMAN, 1962"
1160	1	2200		hypersthene	conventional K-Ar	4678	"4.72E-04, 0.585E-04, 1.19E-04"						age not evaluated		NO ANALYTICAL DATA GIVEN	"AGE TAKEN FROM ARTICLE BY BURWASH, BAADSGAARD, AND PETERMAN, 1962"
1162	1	79.43	2.4	hornblende	conventional K-Ar	D1564	"4.72E-04, 0.584E-04, 1.19E-04*"	0.988	1.155	90			age of volcanism		POTASSIUM DETERMINED BY REPLICATE ISOTOPE-DILUTION ANALYSES	
1163	1	79.9	2.4	hornblende	conventional K-Ar	D1567	"4.72E-04, 0.584E-04, 1.19E-04*"	0.829	0.975	94			age of volcanism		POTASSIUM DETERMINED BY REPLICATE ISOTOPE-DILUTION ANALYSES	
1163	2	80.14	2.4	hornblende	conventional K-Ar	D1567	"4.72E-04, 0.584E-04, 1.19E-04*"	0.834	0.984	95			age of volcanism		POTASSIUM DETERMINED BY REPLICATE ISOTOPE-DILUTION ANALYSES	
1164	1	77.53	3.8	biotite	conventional K-Ar	S1419	"4.72E-04, 0.584E-04, 1.19E-04*"	9.54	10.88	93			age of intrusion			
1164	2	79.2	3.1	biotite	conventional K-Ar	S1419	"4.72E-04, 0.584E-04, 1.19E-04*"	9.24	10.77	91			age of intrusion		REPLICATE POTASSIUM ANALYSES	
1165	1	75.27	2.9	biotite	conventional K-Ar	605-599	"4.72E-04, 0.584E-04, 1.19E-04*"	8.82	9.76	91			age of intrusion		REPLICATE POTASSIUM ANALYSES	
1166	1	80.04	3.1	biotite	conventional K-Ar	63K-350	"4.72E-04, 0.584E-04, 1.19E-04*"	8.75	10.31	89			age of intrusion		REPLICATE POTASSIUM ANALYSES	"THIS AGE ALSO REPORTED BY PROSTKA, 1966, USGS BULL. 1221F"
1167	1	74.5	3.6	biotite	conventional K-Ar	61K-661	"4.72E-04, 0.584E-04, 1.19E-04*"	8.84	9.68	92			age of intrusion			
1168	1	75.63	3.7	biotite	conventional K-Ar	61K-647	"4.72E-04, 0.584E-04, 1.19E-04*"	6.79	7.55	82			age of intrusion			"THIS AGE ALSO REPORTED BY PROSTKA, 1966, USGS BULL. 1221F"
1168	2	76.43	3	hornblende	conventional K-Ar	61K-647	"4.72E-04, 0.584E-04, 1.19E-04*"	0.476	0.535	60			age of intrusion		REPLICATE POTASSIUM ANALYSES	"THIS AGE ALSO REPORTED BY PROSTKA, 1966, USGS BULL. 1221F"
1169	1	73.35	2.3	biotite	conventional K-Ar	63T-273	"4.72E-04, 0.584E-04, 1.19E-04*"	8.74	9.42	96			age of intrusion		REPLICATE POTASSIUM AND ARGON ANALYSES	
1169	2	73.58	2.2	biotite	conventional K-Ar	63T-273	"4.72E-04, 0.584E-04, 1.19E-04*"	8.74	9.45	96			age of intrusion		REPLICATE POTASSIUM ANALYSES	
1169	3	75.04	2.5	hornblende	conventional K-Ar	63T-273	"4.72E-04, 0.584E-04, 1.19E-04*"	0.456	0.503	84			age of intrusion		POTASSIUM DETERMINED BY REPLICATE ISOTOPE-DILUTION ANALYSES	
1169	4	72.96	2.5	hornblende	conventional K-Ar	63T-273	"4.72E-04, 0.584E-04, 1.19E-04*"	0.459	0.492	70			age of intrusion		POTASSIUM DETERMINED BY REPLICATE ISOTOPE-DILUTION ANALYSES	
1170	1	74.99	3.6	biotite	conventional K-Ar	63K-306	"4.72E-04, 0.584E-04, 1.19E-04*"	7.33	8.08	86			age of intrusion			
1170	2	72.89	3.6	hornblende	conventional K-Ar	63K-306	"4.72E-04, 0.584E-04, 1.19E-04*"	0.55	0.589	69			age of intrusion		REPLICATE POTASSIUM ANALYSES	
1171	1	74.39	3	biotite	conventional K-Ar	D1566	"4.72E-04, 0.584E-04, 1.19E-04*"	9	9.84	74			age of intrusion		REPLICATE POTASSIUM ANALYSES	
1171	2	78.27	2.4	hornblende	conventional K-Ar	D1566	"4.72E-04, 0.584E-04, 1.19E-04*"	0.6	0.691	57			age of intrusion		POTASSIUM DETERMINED BY REPLICATE ISOTOPE-DILUTION ANALYSES	
1171	3	76.8	3.4	hornblende	conventional K-Ar	D1566	"4.72E-04, 0.584E-04, 1.19E-04*"	0.602	0.68	72			age of intrusion		POTASSIUM DETERMINED BY REPLICATE ISOTOPE DILUTION ANALYSES	
1172	1	73.59	3.6	biotite	conventional K-Ar	52C-45	"4.72E-04, 0.584E-04, 1.19E-04*"	9.1	9.84	89			age of intrusion			
1172	2	71.75	3.5	biotite	conventional K-Ar	52C-45	"4.72E-04, 0.584E-04, 1.19E-04*"	9.1	9.59	87			age of intrusion		REPLICATE ARGON ANALYSES	
1173	1	76.83	3.7	biotite	conventional K-Ar	62K00	"4.72E-04, 0.584E-04, 1.19E-04*"	8.61	9.73	86			age of intrusion			
1174	1	72.19	3.5	biotite	conventional K-Ar	1K-241	"4.72E-04, 0.584E-04, 1.19E-04*"	8.61	9.13	90			age of intrusion			
1174	2	73.35	3.3	biotite	conventional K-Ar	1K-241	"4.72E-04, 0.584E-04, 1.19E-04*"	8.61	9.28	91			age of intrusion		REPLICATE ARGON ANALYSES	
1174	3	76.52	2.6	hornblende	conventional K-Ar	1K-241	"4.72E-04, 0.584E-04, 1.19E-04*"	0.399	0.449	63			age of intrusion		POTASSIUM DETERMINED BY REPLICATE ISOTOPE-DILUTION ANALYSES	
1175	1	71.7	3.5	biotite	conventional K-Ar	60S-C3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.92	8.34	85			age of intrusion			
1176	1	71.87	3.5	biotite	conventional K-Ar	W-21	"4.72E-04, 0.584E-04, 1.19E-04*"	7.91	8.35	86			age of intrusion		REPLICATE POTASSIUM ANALYSES	
1176	2	75.66	3	biotite	conventional K-Ar	W-21	"4.72E-04, 0.584E-04, 1.19E-04*"	7.91	8.8	93			age of intrusion		REPLICATE POTASSIUM AND ARGON ANALYSES	
1176	3	74.88	2.5	hornblende	conventional K-Ar	W-21	"4.72E-04, 0.584E-04, 1.19E-04*"	0.417	0.459	79			age of intrusion		POTASSIUM DETERMINED BY REPLICATE ISOTOPE-DILUTION ANALYSES	
1177	1	71.74	3.5	biotite	conventional K-Ar	61K-633	"4.72E-04, 0.584E-04, 1.19E-04*"	8.21	8.65	90			age of intrusion			"THIS AGE ALSO REPORTED BY PROSTKA, 1966, USGS BULL. 1221F"
1177	2	75.57	3	hornblende	conventional K-Ar	61K-633	"4.72E-04, 0.584E-04, 1.19E-04*"	0.486	0.54	71			age of intrusion		POTASSIUM DETERMINED BY REPLICATE ISOTOPE-DILUTION ANALYSES	"THIS AGE ALSO REPORTED BY PROSTKA, 1966, USGS BULL. 1221F"
1178	1	72.4		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of intrusion	SAMPLE IS IDENTIFIED AS NO. 6 ON SAMPLE-LOCATION MAP		
1179	1	74.71	2.9	biotite	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	8.55	9.39	78		McDowell (1971)	age of intrusion			
1179	2	72.87	2.8	biotite	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	8.65	9.26	83		McDowell (1971)	age of intrusion			
1180	1	78.98	3.1	biotite	conventional K-Ar	25	"4.72E-04, 0.584E-04, 1.19E-04*"	7.02	8.16	57		McDowell (1971)	age of intrusion			
1180	2	78.99	3.1	hornblende	conventional K-Ar	25	"4.72E-04, 0.584E-04, 1.19E-04*"	0.548	0.637	56		McDowell (1971)	age of intrusion			
1181	1	78.51	3.1	biotite	conventional K-Ar	22	"4.72E-04, 0.584E-04, 1.19E-04*"	6.89	7.96	79		McDowell (1971)	age of intrusion			
1181	2	78.53	3.1	hornblende	conventional K-Ar	22	"4.72E-04, 0.584E-04, 1.19E-04*"	0.836	0.966	46		McDowell (1971)	age of intrusion			
1182	1	77.62	3	biotite	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	8.95	10.22	89		McDowell (1971)	age of intrusion			
1182	2	74.79	2.9	biotite	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	8.95	9.84	93		McDowell (1971)	minimum age of intrusion		REPLICATE ARGON ANALYSES	
1182	3	83.5	3.3	hornblende	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	0.625	0.769	39		McDowell (1971)	maximum age of intrusion			
1183	1	76.84	3	biotite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	8.3	9.38	79		McDowell (1971)	age of intrusion			
1183	2	76.75	3	hornblende	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	0.52	0.587	53		McDowell (1971)	age of intrusion			
1184	1	72.09	2.8	biotite	conventional K-Ar	18A	"4.72E-04, 0.584E-04, 1.19E-04*"	7.64	8.09	87		McDowell (1971)	minimum age of intrusion	GRAIN SIZE GREATER THAN 20 MESH		
1184	2	71.95	2.8	biotite	conventional K-Ar	18A	"4.72E-04, 0.584E-04, 1.19E-04*"	5.99	6.33	57		McDowell (1971)	minimum age of intrusion	GRAIN SIZE BETWEEN 20-80 MESH		
1184	3	82.29	3.2	hornblende	conventional K-Ar	18A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.575	0.697	78		McDowell (1971)	maximum age of intrusion			
1184	4	80.1	3.1	hornblende	conventional K-Ar	18A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.575	0.678	13		McDowell (1971)	maximum age of intrusion			
1185	1	69.52	2.7	biotite	conventional K-Ar	19	"4.72E-04, 0.584E-04, 1.19E-04*"	8.33	8.5	82		McDowell (1971)	age of intrusion			
1185	2	70.59	2.8	hornblende	conventional K-Ar	19	"4.72E-04, 0.584E-04, 1.19E-04*"	1.29	1.337	69		McDowell (1971)	age of intrusion			
1186	1	435		glauconite	conventional K-Ar	G-3280 (5)	"4.72E-04, 0.585E-04, 1.19E-04"	8.06		98				99% GLAUCONITE	"DATA GIVEN AS 6.69% K, 40AR/40K = 0.0286; NO ERROR LISTED"	AGE TOO YOUNG; THIS IS THE SIXTH K-AR AGE FOR THE SAME SAMPLE; SEE RECORD #1082
1187	1	156.93	5	biotite	conventional K-Ar	32	"4.72E-04, 0.585E-04, 1.19E-04*"	7.96	18.79	90			age of intrusion		POTASSIUM VALUE CONVERTED FROM 6.61% K; ARGON VALUE CONVERTED FROM 0.0751 PPM.	
1188	1	155	8	biotite	conventional K-Ar	33	"4.72E-04, 0.584E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
1189	1	12.7		biotite	conventional K-Ar	KA-1268	"4.72E-04, 0.585E-04, 1.19E-04"	8.256		69			age of volcanism		POTASSIUM VALUE IS CONVERTED 6.853% K; ARGON VALUE AND ANALYTICAL ERROR ARE NOT GIVEN	
1190	1	206.74	3	hornblende	conventional K-Ar	YU-N1500	"4.72E-04, 0.584E-04, 1.19E-04*"	0.501	1.58	60			age of intrusion	99% HORNBLENDE HAVING A +100 MESH GRAIN SIZE	POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.414% AND 0.418% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00630 AND 0.00635 PPM; OTHER RADIOGENIC ARGON VALUE IS 59%	
1191	1	61.76	7	biotite	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	5.13	4.64	32			age of intrusion	SAMPLE ALSO DESIGNATED S-EPR40850/1010	POTASSIUM VALUE IS CONVERTED 4.26% K; ARGON VALUE IS CONVERTED 0.0000104 CC/G	
1192	1	176.54	6	biotite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.64	20.4	68		Ashley (1973)	age of intrusion	SAMPLE ALSO DESIGNATED S-EPR4085A/875	POTASSIUM VALUE IS CONVERTED 6.34% K; ARGON VALUE IS CONVERTED 0.0000457 CC/G	
1193	1	60.91	2	biotite	conventional K-Ar	20	"4.72E-04, 0.584E-04, 1.19E-04*"	7.4	6.6	57			age not evaluated	SAMPLE ALSO DESIGNATED S-EPR4083B/SCE637	POTASSIUM VALUE IS CONVERTED 6.14% K; ARGON VALUE IS CONVERTED 0.0000148 CC/G	
1194	1	7.83	1.7	whole rock	conventional K-Ar	Y-B1-14	"4.72E-04, 0.584E-04, 1.19E-04*"	1.16	0.131	4			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.963% AND 0.967% K; ARGON VALUE IS CONVERTED 0.000000294 CC/G	
1195	1	8.09	2	whole rock	conventional K-Ar	Y-B1-17	"4.72E-04, 0.584E-04, 1.19E-04*"	1.2	0.14	1			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.993% AND 1.00% K;  ARGON VALUE IS CONVERTED AVERAGE OF 0.000000265 AND 0.000000361 CC; OTHER RADIOGENIC ARGON VALUE IS 5%	
1196	1	6.99	1.5	whole rock	conventional K-Ar	Y-B1-2	"4.72E-04, 0.584E-04, 1.19E-04*"	1.23	0.124	4			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 1.04% AND 1.01% K; ARGON VALUE IS CONVERTED 0.000000278 CC/G	
1197	1	8.91	1.5	whole rock	conventional K-Ar	Y-B1-1	"4.72E-04, 0.584E-04, 1.19E-04*"	1.19	0.153	5			maximum age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.999% AND 0.977% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.000000325 AND 0.000000363 CC/G; OTHER RADIOGENIC ARGON VALUE IS 5%	POSSIBLE EXCESS RADIOGENIC ARGON PRESENT; AGE IS GREATER THAN AGE OF UNDERLYING FLOW
1198	1	6.84	0.1	sanidine	conventional K-Ar	Y-TSP	"4.72E-04, 0.584E-04, 1.19E-04*"	6.76	0.667	56			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 5.60% AND 5.62% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00000151 AND 0.00000148 CC/G; OTHER RADIOGENIC ARGON VALUE IS 69%.	
1198	2	7	0.14	whole rock	conventional K-Ar	Y-TSP	"4.72E-04, 0.584E-04, 1.19E-04*"	5.04	0.509	62			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 4.15% AND 4.22% K; ARGON VALUE IS CONVERTED 0.00000114 CC/G	
1199	1	7.36	0.5	whole rock	conventional K-Ar	Y-58N264	"4.72E-04, 0.584E-04, 1.19E-04*"	4.88	0.518	13			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 4.02% AND 4.08% K; ARGON VALUE IS CONVERTED 0.00000116 CC/G	
1200	1	12.11	0.4	whole rock	conventional K-Ar	Y-B2-7	"4.72E-04, 0.584E-04, 1.19E-04*"	1.56	0.273	27			age of volcanism		"POTASSIUM VALUE IS CONVERTED AVERAGE OF 1.30%, 1.28%, AND 1.31% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.000000633 AND 0.000000589 CC/G; OTHER RADIOGENIC ARGON VALUE IS 36%; INITIAL SR-87/SR-86 RATIO IS 0.7043 +/- 0.0007"	
1201	1	13.31	1.2	whole rock	conventional K-Ar	Y-B2-3	"4.72E-04, 0.584E-04, 1.19E-04*"	1.68	0.323	8			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 1.40% AND 1.39% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00000067 AND 0.00000078 CC/G; OTHER RADIOGENIC ARGON VALUE IS 6%	
1202	1	13.8	3	whole rock	conventional K-Ar	Y-5813	"4.72E-04, 0.584E-04, 1.19E-04*"	0.752	0.15	2			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.617% AND 0.632% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00000026 AND 0.00000042 CC/G; OTHER RADIOGENIC ARGON VALUE IS 3%.	
1203	1	12.25	0.5	whole rock	conventional K-Ar	Y-58441	"4.72E-04, 0.584E-04, 1.19E-04*"	2.09	0.37	16			age of volcanism		"POTASSIUM VALUE IS CONVERTED AVERAGE OF 1.74%, 1.72%, AND 1.74% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00000083 AND 0.00000085 CC/G; OTHER RADIOGENIC ARGON VALUE IS 8%."	
1204	1	16.25	2	whole rock	conventional K-Ar	Y-5780	"4.72E-04, 0.584E-04, 1.19E-04*"	2.43	0.571	5			age of volcanism		"POTASSIUM VALUE IS CONVERTED AVERAGE OF 2.03%, 2.00%, AND 2.02% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00000124 AND 0.00000132 CC/G; OTHER RADIOGENIC ARGON VALUE IS 5%."	
1205	1	18.48	3	whole rock	conventional K-Ar	Y-57233	"4.72E-04, 0.584E-04, 1.19E-04*"	2.46	0.658	6			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 2.06% AND 2.03% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00000146 AND 0.00000149 CC/G; OTHER RADIOGENIC ARGON VALUE IS 3%.	
1206	1	19.41	1.5	whole rock	conventional K-Ar	Y-B3-13	"4.72E-04, 0.584E-04, 1.19E-04*"	1.89	0.531	8			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 1.56% AND 1.58% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00000115 AND 0.00000123 CC/G; OTHER RADIOGENIC ARGON VALUE IS 9%; INITIAL SR-87/SR-86 RATIO IS 0.7052 +/- 0.0007	
1207	1	22.4	1.1	plagioclase	conventional K-Ar	Y-58N260	"4.72E-04, 0.584E-04, 1.19E-04*"	0.789	0.256	20			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 0.650% AND 0.660% K; ARGON VALUE IS CONVERTED 0.000000574 CC/G	
1207	2	22.35	0.3	biotite	conventional K-Ar	Y-58N260	"4.72E-04, 0.584E-04, 1.19E-04*"	8.31	2.69	54			age of volcanism		POTASSIUM VALUE IS CONVERTED AVERAGE OF 6.90% AND 6.90% K; ARGON VALUE IS CONVERTED AVERAGE OF 0.00000612 AND 0.00000592 CC/G;  OTHER RADIOGENIC ARGON VALUE IS 63%.	
1208	1	19.57	0.4	adularia	conventional K-Ar	USGS(M)-TV-1	"4.72E-04, 0.585E-04, 1.19E-04*"	12.07	3.419	83						AGE OF MINERALIZATION
1209	1	20.95	0.6	biotite	conventional K-Ar	USGS(M)-T219	"4.72E-04, 0.585E-04, 1.19E-04*"	7.71	2.339	69			age of volcanism			
1218	1	7.17	0.2	glass	conventional K-Ar	BLACK BALLS	"4.72E-04, 0.585E-04, 1.19E-04*"	4.52	0.4672	37			minimum age of volcanism	NONHYDRATED OBSIDIAN		
1219	1	8.05	0.2	adularia	conventional K-Ar	GLA-1	"4.72E-04, 0.585E-04, 1.19E-04*"	12.09	1.405	69				"X-RAY DIFFRACTION ANALYSIS ACCORDING TO THE THREE-REFLECTION METHOD (WRIGHT, 1968) INDICATED A SANIDINE STRUCTURE FOR THE FELDSPAR."		AGE OF MINERALIZATION
1220	1	15.53	0.5	biotite	conventional K-Ar	GL-2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.39	1.884	66		Silberman and McKee (1972)	age of volcanism			"AGE IS TOO YOUNG, SEE BIOTITE AGE"
1220	2	14	0.4	plagioclase	conventional K-Ar	GL-2	"4.72E-04, 0.585E-04, 1.19E-04*"	0.81	0.1639	63		Silberman and McKee (1972)		PLAGIOCLASE HAS THIN COATING OF IRON OXIDE ON FRACTURES AND PARTINGS AND HAS GLASS INCLUSIONS.		
1221	1	198	4	sericite	conventional K-Ar	GL-15	"4.72E-04, 0.585E-04, 1.19E-04*"	6.75	20.37	98			age not evaluated			
1222	1	80.2	2.3	muscovite	conventional K-Ar	REDLICH	"4.72E-04, 0.585E-04, 1.19E-04*"	10.94	12.92	85			minimum age of intrusion			
1223	1	79.22	2.3	biotite	conventional K-Ar	HALL-B	"4.72E-04, 0.585E-04, 1.19E-04*"	6.95	8.103	95			age of intrusion			ALSO THE TIME OF MINERALIZATION
1224	1	10.8	0.3	sanidine	conventional K-Ar	K-1	"4.72E-04, 0.585E-04, 1.19E-04*"	11.66	1.818	79			age of volcanism			
1225	1	106.79	2	muscovite	conventional K-Ar	MG-1	"4.72E-04, 0.585E-04, 1.19E-04*"	10.26	16.25	88			age of intrusion			
1226	1	115.77	3	hornblende	conventional K-Ar	GB-1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.84	1.446	85			age not evaluated			
1227	1	72.81	1.4	muscovite	conventional K-Ar	SPR-1	"4.72E-04, 0.585E-04, 1.19E-04*"	11.06	11.83	80			age of intrusion			
1228	1	70.99	1.4	biotite	conventional K-Ar	SPR-1A	"4.72E-04, 0.585E-04, 1.19E-04*"	9.16	9.548	82			age of intrusion			
1229	1	15.09	0.3	sanidine	conventional K-Ar	MILLER-1	"4.72E-04, 0.585E-04, 1.19E-04*"	11.6	2.53	8378			age of volcanism		ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
1230	1	17.16	0.5	biotite	conventional K-Ar	USGS(M)-12789-75	"4.72E-04, 0.585E-04, 1.19E-04*"	8.41	2.088	79			age of volcanism	MAP LOCATION NO. 79		
1230	2	17.21	0.5	hornblende	conventional K-Ar	USGS(M)-12789-75	"4.72E-04, 0.585E-04, 1.19E-04*"	0.815	0.2029	43			age of volcanism	MAP LOCATION NO. 79	ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES; OTHER RADIOGENIC ARGON VALUE IS 42%	
1231	1	17.57	0.3	biotite	conventional K-Ar	USGS(M)-11549-1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.74	2.222	62		Bonham and others (1972)	age of volcanism	MAP LOCATION NO. 84		
1231	2	17.31	0.3	sanidine	conventional K-Ar	USGS(M)-11549-1	"4.72E-04, 0.585E-04, 1.19E-04*"	11.11	2.782	54			age of volcanism	MAP LOCATION NO. 84		
1232	1	15.86	1.6	biotite	conventional K-Ar	AD-34	"4.72E-04, 0.585E-04, 1.19E-04*"	7.05	1.617	10			age of volcanism	MAP LOCATION NO. 85	ARGON VALUE IS AVERAGE OF 3 ANALYSES; OTHER RADIOGENIC ARGON VALUES ARE 11% AND 7%	
1233	1	14.59	0.3	biotite	conventional K-Ar	USGS(M)-164-69	"4.72E-04, 0.585E-04, 1.19E-04*"	8.57	1.807	63			age of volcanism	MAP LOCATION NO. 97		"AGE OF 14.6+/-2.4 M.Y. ON PLAGIOCLASE REPORTED FOR THIS SAMPLE IN ASHLEY AND SILBERMAN, 1976"
1234	1	18.26	0.4	biotite	conventional K-Ar	USGS(M)-164-15	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	2.069	38			age of volcanism	MAP LOCATION NO. 98		
1235	1	4.56	0.2	biotite	conventional K-Ar	SAMPLE PIGEON SPRING	"4.72E-04, 0.585E-04, 1.19E-04*"	5.79	0.381	42			age of volcanism			"AGE WAS FIRST PUBLISHED BY MCKEE, E.H., 1968, GEOLOGY OF THE MAGRUDER MOUNTAIN AREA, NEVADA-CALIFORNIA:  U. S. GEOL. SURVEY BULL. 1251-H, ON PAGE H26, BUT NO LOCATION OR ANALYTICAL DATA GIVEN."
1236	1	15.47	0.6	biotite	conventional K-Ar	GILBERT	"4.72E-04, 0.585E-04, 1.19E-04*"	8.12	1.816	66		Silberman and others (1975)	age of volcanism	MAP LOCATION NO. 67		"AGE ALSO PUBLISHED BY ALBERS, J.P., AND STEWART, J.H., 1972, GEOLOGY AND MINERAL DEPOSITS OF ESMERALDA COUNTY, NEVADA:  NEVADA BUR. MINES AND GEOLOGY BULL., NO. 78."
1237	1	16.6	0.4	sanidine	conventional K-Ar	659-66	"4.72E-04, 0.585E-04, 1.19E-04*"	10.9	2.617	94			age of volcanism	MAP LOCATION NO. 86		"AGE ALSO PUBLISHED BY ALBERS, J.P., AND STEWART, J.H., 1972, GEOLOGY AND MINERAL DEPOSITS OF ESMERALDA COUNTY, NEVADA:  NEVADA BUR. MINES AND GEOLOGY BULL., NO. 78."
1237	2	16.66	0.4	biotite	conventional K-Ar	659-66	"4.72E-04, 0.585E-04, 1.19E-04*"	7.77	1.872	62			age of volcanism	MAP LOCATION NO. 86		"AGE ALSO PUBLISHED BY ALBERS, J.P., AND STEWART, J.H., 1972, GEOLOGY AND MINERAL DEPOSITS OF ESMERALDA COUNTY, NEVADA:  NEVADA BUR. MINES AND GEOLOGY BULL., NO. 78."
1238	1	22.15	0.5	biotite	conventional K-Ar	97VV-5	"4.72E-04, 0.585E-04, 1.19E-04*"	5.65	1.813	75			age of volcanism	MAP LOCATION NO. 102		"AGE ALSO PUBLISHED BY ALBERS, J.P., AND STEWART, J.H., 1972, GEOLOGY AND MINERAL DEPOSITS OF ESMERALDA COUNTY, NEVADA:  NEVADA BUR. MINES AND GEOLOGY BULL. NO. 78."
1238	2	21.3	0.7	augite-ferroaugite	conventional K-Ar	97VV-5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.962	0.2967	54			age of volcanism	MAP LOCATION NO. 102		"AGE ALSO PUBLISHED BY ALBERS, J.P., AND STEWART, J.H., 1972, GEOLOGY AND MINERAL DEPOSITS OF ESMERALDA COUNTY, NEVADA:  NEVADA BUR. MINES AND GEOLOGY BULL. NO. 78."
1239	1	22.01	0.5	augite-ferroaugite	conventional K-Ar	97VV-299	"4.72E-04, 0.585E-04, 1.19E-04*"	0.853	0.272	58			age of volcanism			"AGE ALSO PUBLISHED BY ALBERS, J.P., AND STEWART, J.H., 1972, GEOLOGY AND MINERAL DEPOSITS OF ESMERALDA COUNTY, NEVADA:  NEVADA BUR. MINES AND GEOLOGY BULL. NO. 78."
1240	1	21.1	0.4	biotite	conventional K-Ar	228-1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.465	2.587	53			age of volcanism		POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES.	
1240	2	21.17	0.4	sanidine	conventional K-Ar	228-1	"4.72E-04, 0.585E-04, 1.19E-04*"	12.3	3.771	89			age of volcanism		REPLICATE POTASSIUM ANALYSES	
1241	1	21.73	0.4	biotite	conventional K-Ar	Y-47	"4.72E-04, 0.585E-04, 1.19E-04*"	8.23	2.59	76		Ashley (1973)	age of volcanism		POTASSIUM VALUE IS AVERAGE OF FOUR DETERMINATIONS	
1242	1	21.89	0.4	biotite	conventional K-Ar	203-11	"4.72E-04, 0.585E-04, 1.19E-04*"	8.42	2.67	74		Ashley (1973)	age of volcanism		POTASSIUM VALUE IS AVERAGE OF FOUR ANALYSES	
1243	1	21.27	0.4	alunite	conventional K-Ar	199-127	"4.72E-04, 0.585E-04, 1.19E-04*"	7.97	2.455	49					REPLICATE POTASSIUM ANALYSES	"AGE OF MINERALIZATION; AGE OF 21.0 +/- 0.4 REPORTED FOR THIS SAMPLE BASED ON SECOND ARGON ANALYSIS BY ASHLEY AND SILBERMAN, 1976"
1244	1	21.6	0.3	biotite	conventional K-Ar	644-3-B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.69	2.718	70			age of volcanism	MAP LOCATION NO. 29	POTASSIUM VALUE IS CONVERTED 7.21% K; ARGON VALUE COMPUTED BY COMPILER	
1245	1	6.27	0.3	biotite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	8.6	0.778	41			age of volcanism		REPLICATE POTASSIUM ANALYSES	
1246	1	6.2	0.5	biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	8.48	0.758	28			age of volcanism		REPLICATE POTASSIUM ANALYSES	
1247	1	4.95	0.6	whole rock	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	2.55	0.182	8			age of volcanism		REPLICATE POTASSIUM ANALYSES	
1248	1	6.09	0.2	biotite	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.29	0.728	50			age of volcanism		REPLICATE POTASSIUM ANALYSES	
1249	1	21.5	1	biotite	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1250	1	6.9	0.3	biotite	conventional K-Ar	13	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1251	1	23.34	1	biotite	conventional K-Ar	14	"4.72E-04, 0.585E-04, 1.19E-04*"	7.88	2.665	63			age of volcanism		REPLICATE POTASSIUM ANALYSES	
1304	1	0.18	0.01	glass	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism			
1305	1	10.7	0.5	whole rock	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		"ANALYICAL DATA NOT PUBLISHED.  IT IS GIVEN IN--BUFFLER, R.T., 1967, THE BROWNS PARK FORMATION AND ITS RELATIONSHIP TO THE LATE TERTIARY GEOLOGIC HISTORY OF THE ELKHEAD REGION, NORTHWESTERN COLORADO-SOUTH-CENTRAL WYOMING (PH. D. THESIS):  UNIV. CALIFORNIA,"	
1306	1	69.02	0.7	biotite	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	8.48	8.59	93			age of volcanism		POTASSIUM CONTENT CONVERTED TO POTASSIUM OXIDE--COMPILER	
1307	1	70.12	0.7	biotite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	8.18	8.42	87			age of volcanism		POTASSIUM CONTENT CONVERTED TO POTASSIUM OXIDE--COMPILER	
1308	1	96.59	2.6	biotite	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.19E-04*"	5.81	8.3	96			age of volcanism		POTASSIUM CONTENT CONVERTED TO POTASSIUM OXIDE--COMPILER	
1308	2	93.61	0.9	biotite	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.19E-04*"	5.87	8.12	96			age of volcanism		POTASSIUM CONTENT CONVERTED TO POTASSIUM OXIDE--COMPILER	
1308	3	92.78	0.9	biotite	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.19E-04*"	5.88	8.06	94			age of volcanism		POTASSIUM CONTENT CONVERTED TO POTASSIUM OXIDE--COMPILER	
1309	1	94.34	0.9	biotite	conventional K-Ar	16	"4.72E-04, 0.584E-04, 1.19E-04*"	5.25	7.32	90			age of volcanism		POTASSIUM CONTENT CONVERTED TO POTASSIUM OXIDE--COMPILER	
1310	1	2206.86	110	biotite	conventional K-Ar	WIND RIVER NO. 1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.52	593	100			minimum age of intrusion		2.37 PPM RADIOGENIC ARGON	
1310	2	2629.52	130	hornblende	conventional K-Ar	WIND RIVER NO. 1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.93	79.6	100			age of intrusion	SOME BIOTITE PRESENT IN HORNBLENDE CONCENTRATE	0.318 PPM RADIOGENIC  ARGON	
1311	1	1425.03	70	biotite	conventional K-Ar	WIND RIVER NO. 2	"4.72E-04, 0.585E-04, 1.19E-04*"	5.12	160	99			age not evaluated		0.641 PPM RADIOGENIC ARGON	
1312	1	2.5		Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		ANALYTICAL DATA NOT GIVEN	
1313	1	32.2	2	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		ANALYTICAL DATA NOT GIVEN	
1314	1	33.9	3.4	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		ANALYTICAL DATA NOT GIVEN	
1315	1	46.2	1.5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		ANALYTICAL DATA NOT GIVEN	
1316	1	35.8	0.8	biotite	conventional K-Ar	71-0-14	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1317	1	43.1	1.1	Unk	conventional K-Ar	71-0-12	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1318	1	49.2	0.5	biotite	conventional K-Ar	L72-132	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1320	1	32	0.9	Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age meaning uncertain (geologic factors)	PROBABLY BIOTITE CONCENTRATE	NO ANALYTICAL DATA GIVEN	
1338	1	0.11	0	glass	conventional K-Ar	OCB-66-09	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN; ANALYTICAL ERROR LISTED AS +/- 0.0026 M.Y.	BEST WEIGHTED AGE IS 0.1145 M.Y.
1338	2	0.12		sanidine	conventional K-Ar	OCB-66-09	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN; ANALYTICAL ERROR LISTED AS +/- 0.0024 M.Y.	BEST WEIGHTED AGE IS 0.1145 M.Y.
1338	3	0.13	0.06	sanidine	conventional K-Ar	OCB-66-09	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN; ANALYTICAL ERROR LISTED AS +/- 0.059 M.Y.	BEST WEIGHTED AGE IS 0.1145 M.Y.
1339	1	0.12		sanidine	conventional K-Ar	YG-72-5	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN; ANALYTICAL ERROR LISTED AS +/- 0.0059 M.Y.	BEST WEIGHTED AGE IS 0.1145 M.Y.
1339	2	0.12		glass	conventional K-Ar	YG-72-5	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN; ANALYTICAL ERROR LISTED AS +/- 0.0036 M.Y.	BEST WEIGHTED AGE IS 0.1145 M.Y.
1340	1	0.18	0	glass	conventional K-Ar	OCB-66-06	"4.72E-04, 0.584E-04, 1.19E-04"					Friedman and others (1973)	age of volcanism		NO ANALYTICAL DATA GIVEN	
1341	1	2		sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1342	1	1.2		sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1343	1	0.6		sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1344	1	1.6		sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1345	1	0.79		sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1346	1	0.64		sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1347	1			Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given*							"SANIDINE, PLAGIOCLASE, AND NONHYDRATED GLASS WERE DATED"	NO ANALYTICAL DATA GIVEN	AN AGE RANGE OF 0.6 TO 0.53 M.Y. WAS OBTAINED.  ONE SAMPLE GAVE AN AGE OF 0.26 M.Y.
1348	1			sanidine	conventional K-Ar	(NOT GIVEN)	no decay constants given*								NO ANALYTICAL DATA GIVEN	AGES RANGE FROM 0.2 TO 0.07 M.Y.
1349	1	0.18		sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1350	1	0.16		glass	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1351	1	0.07		glass	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1352	1	0.4		glass	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
1353	1	0.29		sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						maximum age of volcanism		NO ANALYTICAL DATA GIVEN	
1401	1	2310	55	biotite	conventional K-Ar	GM-98-68	"4.962E-04, 0.581E-04, 1.1167E-04"	8.99	604.7	99			initial age disturbed by later metamorphism			
1405	1	2680	160	hornblende	conventional K-Ar	FCA-R-1	"4.962E-04, 0.581E-04, 1.1167E-04"	0.895	79.18	96			minimum age of metamorphic crystallization			
1407	1	1570	50	biotite	conventional K-Ar	GM-56	"4.962E-04, 0.581E-04, 1.1167E-04"	8.36	301.2	99						"AGE INDICATES THAT ROCK REMAINED UNDER OPEN-STATE CONDITIONS FOR MILLIONS OF YEARS, PROBABLY DUE TO HIGH THERMAL CONDITIONS DEEP IN THE CRUST"
1417	1	1780	40	biotite	conventional K-Ar	D1686	"4.962E-04, 0.581E-04, 1.1167E-04"	5.4	236.1	99			initial age disturbed by later metamorphism			
1428	1	2460	45	actinolite	39Ar-40Ar total fusion	D1784	"4.962E-04, 0.581E-04, 1.1167E-04"						maximum age of intrusion	NEPHRITE IS A VARIETY OF ACTINOLITE	SEE ARTICLE FOR ANALYTICAL DATA	
1428	2	2560	45	actinolite	39Ar-40Ar total fusion	D1784	"4.962E-04, 0.581E-04, 1.1167E-04"						age of intrusion	NEPHRITE IS A VARIETY OF ACTINOLITE		
1429	1	2650	130	labrodorite	39Ar-40Ar total fusion	GM-106-69	"4.962E-04, 0.581E-04, 1.1167E-04"						age of intrusion		SEE ARTICLE FOR ANALYTICAL DATA	
1430	1	65.85	0.7	biotite	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	8.43	8.14	97			age of volcanism			
1431	1	73.19	0.7	biotite	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	5.31	5.71	94			age of volcanism			
1432	1	74.43	2.2	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	8.3	9.08	96			age of volcanism			
1432	2	74.31	0.7	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	8.24	9	96			age of volcanism			
1432	3	72.93	0.7	sanidine	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	11.46	12.28	80			age of volcanism			SAMPLE GAVE AN INITIAL AGE OF 75.2 +/- 2.3 M.Y. BUT THIS AGE WAS DUE TO EXTRANEOUS GRAINS OF K-FELDSPAR
1433	1	79.95	1.6	biotite	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.19E-04*"	8.08	9.51	97			age of volcanism			
1433	2	79.79	0.8	biotite	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.19E-04*"	8.08	9.49	94			age of volcanism			
1434	1	79.26	0.8	biotite	conventional K-Ar	9	"4.72E-04, 0.584E-04, 1.19E-04*"	8.53	9.95	95			age of volcanism			
1435	1	80.05	0.8	biotite	conventional K-Ar	10	"4.72E-04, 0.584E-04, 1.19E-04*"	8.35	9.84	96			age of volcanism			
1436	1	84.44	0.8	biotite	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.19E-04*"	7.77	9.67	97			age of volcanism			
1437	1	79.82	0.8	biotite	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	5.43	6.38	92			age of volcanism			AGE MAY BE LOW
1438	1	89.1	1.7	biotite	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	6.73	8.85	92			age of volcanism			
1438	2	88.81	0.9	biotite	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	6.73	8.82	93			age of volcanism			
1439	1	91.09	0.9	biotite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	4.55	6.12	92			age of volcanism			
1440	1	97.46	1	biotite	conventional K-Ar	17	"4.72E-04, 0.584E-04, 1.19E-04*"	7.47	10.77	96			age of volcanism			
1440	2	97.49	1	sanidine	conventional K-Ar	17	"4.72E-04, 0.584E-04, 1.19E-04*"	11.42	16.47	97			age of volcanism			
1441	1	124.08	10	hornblende	conventional K-Ar	K-1H	"4.72E-04, 0.584E-04, 1.19E-04*"	3.45	6.38	43			"sample contains inherited material, age is too old"			"SUBSEQUENT K-AR DATING INDICATES THAT THE DIKE IS EOCENE IN AGE (SEE MARVIN, WITKIND, KEEFER, AND MEHNERT, 1973)"
1442	1	1465.32	30	hornblende	conventional K-Ar	K-2H	"4.72E-04, 0.584E-04, 1.19E-04*"	1.18	38.4	87			initial age disturbed by later metamorphism			
1443	1	1426.3	30	hornblende	conventional K-Ar	K-3H	"4.72E-04, 0.584E-04, 1.19E-04*"	1.24	38.8	84			initial age disturbed by later metamorphism			
1444	1	1385.19	30	biotite	conventional K-Ar	K-4B	"4.72E-04, 0.584E-04, 1.19E-04*"	3.6	108	87			initial age disturbed by later metamorphism			
1444	2	1480.54	30	hornblende	conventional K-Ar	K-4H	"4.72E-04, 0.584E-04, 1.19E-04*"	1.58	52.2	95			initial age disturbed by later metamorphism			
1445	1	1720.68	35	biotite	conventional K-Ar	K-5B	"4.72E-04, 0.584E-04, 1.19E-04*"	5.14	213	99			initial age disturbed by later metamorphism			
1445	2	1816.48	35	hornblende	conventional K-Ar	K-5H	"4.72E-04, 0.584E-04, 1.19E-04*"	1.72	77.6	97			age of metamorphic crystallization			
1446	1	1695.88	35	biotite	conventional K-Ar	K-10B	"4.72E-04, 0.584E-04, 1.19E-04*"	3.85	156	98			initial age disturbed by later metamorphism			
1446	2	1776.4	35	hornblende	conventional K-Ar	K-10H	"4.72E-04, 0.584E-04, 1.19E-04*"	1.66	72.3	95			minimum age of metamorphic crystallization			
1447	1	1738.32	35	hornblende	conventional K-Ar	10H	"4.72E-04, 0.584E-04, 1.19E-04*"	1.76	74.1	88			initial age disturbed by later metamorphism			
1448	1	1610.65	30	hornblende	conventional K-Ar	11H	"4.72E-04, 0.584E-04, 1.19E-04*"	2.55	95.5	84			initial age disturbed by later metamorphism			
1449	1	1501.25	30	biotite	conventional K-Ar	14B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.91	233	99			initial age disturbed by later metamorphism			
1450	1	1560.85	35	hornblende	conventional K-Ar	15H	"4.72E-04, 0.584E-04, 1.19E-04*"	1.45	51.8	98			initial age disturbed by later metamorphism			
1451	1	1618.54	30	hornblende	conventional K-Ar	34H	"4.72E-04, 0.584E-04, 1.19E-04*"	2.73	103	97			initial age disturbed by later metamorphism			
1452	1	33.2	3	muscovite	conventional K-Ar	100 MU	"4.72E-04, 0.584E-04, 1.19E-04*"	10.26	4.95	76			initial age disturbed by later metamorphism			
1491	1	2631.87	135	hornblende	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.18E-04*"	0.645	55.3	96			age of intrusion		K2O AND 40AR CONVERTED BY COMPILER	
1492	1	1535.14	77	biotite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.18E-04*"	8.41	293.1	93			initial age disturbed by later metamorphism		K2O AND 40AR CONVERTED BY COMPILER	"AGE LOWERED BY DULUTH GABBRO, 2.7 KM AWAY"
1492	2	2483.04	125	hornblende	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.18E-04*"	1.19	91.5	97			age of intrusion		K2O AND 40AR CONVERTED BY COMPILER	
1493	1	2715.24	140	hornblende	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.18E-04*"	0.49	44.6	93			age of intrusion		K2O AND 40AR CONVERTED BY COMPILER	
1494	1	2557.57	130	hornblende	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.18E-04*"	1.22	99.1	98			age meaning uncertain (geologic factors)		K2O AND 40AR CONVERTED BY COMPILER	POSSIBLE THERMAL DISTURBANCE 1700-1800 M.Y. AGO
1495	1	1792.22	90	hornblende	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.18E-04*"	1.08	47.7	84		Goldich and others (1961)			K2O AND 40AR CONVERTED BY COMPILER	
1496	1	1280.79	70	whole rock	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.18E-04*"	0.931	25	85			minimum age of intrusion		K2O AND 40AR CONVERTED BY COMPILER	AGE MAY BE LOW DUE TO AR-DIFFUSION
1497	1	1457.87	75	whole rock	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.18E-04*"	2.39	77.2	98			minimum age of intrusion		K2O AND 40AR CONVERTED BY COMPILER	AGE MAY BE LOW DUE TO AR-DIFFUSION
1498	1	1567.87	80	whole rock	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.18E-04*"	0.684	24.6	91			minimum age of intrusion		K2O AND 40AR CONVERTED BY COMPILER	AGE MAY BE LOW DUE TO AR-DIFFUSION
1499	1	2113.67	110	whole rock	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.18E-04*"	0.548	31.7	94			age of intrusion		K2O AND 40AR CONVERTED BY COMPILER	
1499	2	2032.91	50	whole rock	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.18E-04*"	0.79	42.8	99			age of intrusion		K2O AND 40AR CONVERTED BY COMPILER	
1500	1	1738.69	90	hornblende	conventional K-Ar	16	"4.72E-04, 0.584E-04, 1.18E-04*"	0.964	40.6	96			age of intrusion		K2O AND 40AR CONVERTED BY COMPILER	
1559	1	1132.09		microcline	conventional K-Ar	MICROCLINE 3	"4.72E-04, 0.585E-04, 1.19E-04*"	11.82	268	93		Wasserburg and others (1956)	age not evaluated			AGE TOO YOUNG
1560	1	41.7		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.04	5.49	18			minimum age of intrusion			
1560	2	41.02		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.04	5.4	72			minimum age of intrusion			
1561	1	1330.03		K feldspar	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.9	252	88			minimum age of intrusion			
1561	2	1344.9		K feldspar	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.9	256	79			minimum age of intrusion			
1562	1	1630.36		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.07	346	98			minimum age of metamorphic crystallization			
1563	1	1773.84		K feldspar	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.55	415	98			minimum age of metamorphic crystallization			
1564	1	2439.97		hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.56	41.7	94			minimum age of metamorphic crystallization			
1566	1	1690		muscovite	conventional K-Ar	1	no decay constants given*	10.1	406				minimum age of intrusion			
1566	2	1223.92		microcline	conventional K-Ar	2	no decay constants given*	9.598	242							AGE TOO YOUNG; MICROCLINE HAS LEAKED ARGON
1566	3	1165		microcline	conventional K-Ar	3	no decay constants given	11.65	275							AGE TOO YOUNG; MICROCLINE HAS LEAKED ARGON
1567	1	1157.88		whole rock	conventional K-Ar	4	no decay constants given*	4.92	115							AGE TOO YOUNG; K-FELDSPAR LEAKED ARGON
1568	1	259		muscovite	conventional K-Ar	1	"4.962E-04, 0.581E-04, 1.1167E-04"	10.17	40.8				age of intrusion		AGE RE-CALCULATED WITH NEW DECAY CONSTANTS-COMPILER	
1568	2	212		microcline	conventional K-Ar	2	"4.962E-04, 0.581E-04, 1.1167E-04"	12.66	41							AGE TOO YOUNG; MICROCLINE LEAKED ARGON
1569	1	260		muscovite	conventional K-Ar	3	"4.962E-04, 0.581E-04, 1.1167E-04"	10.14	40.8				age of intrusion		AGE RE-CALCULATED WITH NEW DECAY CONSTANTS-COMPILER	
1570	1	255		muscovite	conventional K-Ar	4	"4.962E-04, 0.581E-04, 1.1167E-04"	10.19	40.2				age of intrusion		AGE RE-CALCULATED WITH NEW DECAY CONSTANTS--COMPILER	
1570	2	213		microcline	conventional K-Ar	2	"4.962E-04, 0.581E-04, 1.1167E-04"	13.61	44.4						AGE RE-CALCULATED WITH NEW DECAY CONSTANTS--COMPILER	AGE TOO YOUNG; MICROCLINE LEAKED ARGON
1572	1	375		muscovite	conventional K-Ar	6	"4.962E-04, 0.581E-04, 1.1167E-04"	10.14	60.8				age of intrusion		AGE RE-CALCULATED WITH NEW DECAY CONSTANTS--COMPILER	
1572	2	277		microcline	conventional K-Ar	7	"4.962E-04, 0.581E-04, 1.1167E-04"	11.79	50.9						AGE RE-CALCULATED WITH NEW DECAY CONSTANTS--COMPILER	AGE TOO YOUNG; MICROCLINE LEAKED ARGON
1573	1	283		microcline	conventional K-Ar	8	"4.962E-04, 0.581E-04, 1.1167E-04"	13.4	59.1						AGE RE-CALCULATED WITH NEW DECAY CONSTANTS--COMPILER	AGE TOO YOUNG; MICROCLINE LEAKED ARGON
1574	1	449.64		glauconite	conventional K-Ar	1	no decay constants given*	6.23	45.8				age not evaluated			
1575	1	386.1		K feldspar	conventional K-Ar	2	no decay constants given*	13.31	82.5				age not evaluated	AUTHIGENIC FELDSPAR		
1576	1	70.52		glauconite	conventional K-Ar	3	no decay constants given*	6.51	6.74				age not evaluated			
1577	1	51.15		glauconite	conventional K-Ar	4	no decay constants given*	7.23	5.4				age not evaluated			
1636	1	256.16	13	biotite	conventional K-Ar	N-A1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.02	31.78	97			age of later metamorphism			
1638	1	258.15	13	biotite	conventional K-Ar	1737	"4.72E-04, 0.585E-04, 1.19E-04*"	9.08	36.28	95			age of intrusion			
1640	1	353.5	17	hornblende	conventional K-Ar	688	"4.72E-04, 0.585E-04, 1.19E-04*"	0.45	2.53	89			age meaning uncertain (geologic factors)			
1641	1	246.9	12	biotite	conventional K-Ar	1325	"4.72E-04, 0.585E-04, 1.19E-04*"	8.08	30.78	97			age of later metamorphism			
1642	1	288.26	14	hornblende	conventional K-Ar	2073	"4.72E-04, 0.585E-04, 1.19E-04*"	0.24	1.08	77			age meaning uncertain (geologic factors)			
1643	1	240.56	12	biotite	conventional K-Ar	1958	"4.72E-04, 0.585E-04, 1.19E-04*"	9.59	35.53	95			age of later metamorphism			
1644	1	250.16	12	muscovite	conventional K-Ar	1337	"4.72E-04, 0.585E-04, 1.19E-04*"	6.8	26.27	93			age of later metamorphism			
1644	2	222.62	12	biotite	conventional K-Ar	1337	"4.72E-04, 0.585E-04, 1.19E-04*"	7.71	26.3	96			age of later metamorphism			
1645	1	248.95	12	muscovite	conventional K-Ar	1902	"4.72E-04, 0.585E-04, 1.19E-04*"	9.44	36.28	93			age of later metamorphism			
1645	2	233.76	11	biotite	conventional K-Ar	1902	"4.72E-04, 0.585E-04, 1.19E-04*"	5.26	18.9	92			age of later metamorphism			
1651	1	250.2	12	muscovite	conventional K-Ar	1709	"4.72E-04, 0.585E-04, 1.19E-04*"	10.36	40.03	94			age of later metamorphism			
1656	1	246.21	12	muscovite	conventional K-Ar	2075	"4.72E-04, 0.585E-04, 1.19E-04*"	10.54	40.03	93			age of later metamorphism			
1657	1	1118.42		biotite	conventional K-Ar	1 (LS-108)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.29	118	96			initial age disturbed by later metamorphism			CRYSTALLIZATION AGE IS AROUND 1800 M.Y.
1657	2	982.36		K feldspar	conventional K-Ar	1 (LS-108)	"4.72E-04, 0.585E-04, 1.19E-04*"	16.57	311.5	99			initial age disturbed by later metamorphism			CRYSTALLIZATION AGE IS AROUND 1800 M.Y.
1657	3	1292.45		muscovite	conventional K-Ar	1 (LS-108)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.06	192	83			initial age disturbed by later metamorphism			CRYSTALLIZATION AGE IS AROUND 1800 M.Y.
1658	1	1343.23		biotite	conventional K-Ar	2 (LS-47)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.85	225.4	96			initial age disturbed by later metamorphism			CRYSTALLIZATION AGE IS AROUND 1950 M.Y.
1658	2	1252.35		muscovite	conventional K-Ar	2 (LS-47)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.72	174.9	93			initial age disturbed by later metamorphism			CRYSTALLIZATION AGE IS AROUND 1950 M.Y.
1658	3	1159.24		K feldspar	conventional K-Ar	2 (LS-47)	"4.72E-04, 0.585E-04, 1.19E-04*"	16.3	381.6	99			initial age disturbed by later metamorphism			CRYSTALLIZATION AGE IS AROUND 1950 M.Y.
1659	1	1808.83		hornblende	conventional K-Ar	3 (RB-9-54)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.569	25.5	98			age of metamorphic crystallization			
1660	1	1549.2		hornblende	conventional K-Ar	4 (RB-120-52)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.107	3.78	83			minimum age of metamorphic crystallization			
1661	1	1262.19		biotite	conventional K-Ar	5 (LS-48)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.144	30.1	50			initial age disturbed by later metamorphism	CONSIDERABLE ALTERATION TO CHLORITE AND MUSCOVITE		CRYSTALLIZATION IS PROBABLY AROUND 1800 M.Y.
1662	1	1170.09		biotite	conventional K-Ar	6 (LS-49)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	202	97			initial age disturbed by later metamorphism	CONTAINS INCLUSIONS OF SPHENE AND ZIRCON		CRYSTALLIZATION AGE IS PROBABLY AROUND 1800 M.Y.
1663	1	1230		biotite	conventional K-Ar	7 (LS-128)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.17	182	94			initial age disturbed by later metamorphism			AGE IS AROUND 1800 M.Y.
1663	2	1520		muscovite	conventional K-Ar	7 (LS-128)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.66	366.5	97			initial age disturbed by later metamorphism			AGE IS AROUND 1800 M.Y.
1663	3	1180		K feldspar	conventional K-Ar	7 (LS-128)	"4.72E-04, 0.585E-04, 1.19E-04*"	11.59	276.8	98			"age meaning uncertain (geologic factors), initial age disturbed by later metamorphism"			AGE IS AROUND 1800 M.Y.
1664	1	1250		biotite	conventional K-Ar	8A (LS-42A)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.73	122.9	95			initial age disturbed by later metamorphism		K20 SEEMS LOW-COMPILER	CRYSTALLIZATION AGE IS AROUND 1900 M.Y.
1664	2	1360		muscovite	conventional K-Ar	8A (LS-42A)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.02	293.5	78			initial age disturbed by later metamorphism			CRYSTALLIZATION AGE IS AROUND 1900 M.Y.
1665	1	1630		muscovite	conventional K-Ar	8B (LS-42B)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.34	394.6	98			initial age disturbed by later metamorphism		AGE CALCULATED BY COMPILER	INITIAL AGE IS ABOUT 2700 M.Y.
1665	2	1240		biotite	conventional K-Ar	8B (LS-42B)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.06	207	95			initial age disturbed by later metamorphism			INITIAL AGE IS ABOUT 2700 M.Y.
1665	3	1690		hornblende	conventional K-Ar	8B (LS-42B)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.879	35.45	96			initial age disturbed by later metamorphism			INITIAL AGE IS ABOUT 2700 M.Y.
1666	1	1578.48		biotite	conventional K-Ar	9 (LS-112)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.72	316.8	98			age not evaluated			
1667	1	1587.56		biotite	conventional K-Ar	10 (LS-44A)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.53	166	95			age not evaluated	CONSIDERABLE CHLORITE PRESENT		
1667	2	1134.29		K feldspar	conventional K-Ar	10 (LS-44A)	"4.72E-04, 0.585E-04, 1.19E-04*"	11.38	258.7	60			age not evaluated			
1668	1	1250		biotite	conventional K-Ar	11 (LS-40C)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.62	223	88			initial age disturbed by later metamorphism			
1668	2	1150		muscovite	conventional K-Ar	11 (LS-40C)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.01	163	97			initial age disturbed by later metamorphism			
1669	1	2060		hornblende	conventional K-Ar	12 (HJ-20A-52)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.364	20.1	97			age not evaluated			
1670	1	1109.8		biotite	conventional K-Ar	13 (LS-40H)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.84	151	96			initial age disturbed by later metamorphism			
1671	1	1592.81		hornblende	conventional K-Ar	14 (HJ-68-55)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.208	7.66	77			initial age disturbed by later metamorphism			
1672	1	1574.55		hornblende	conventional K-Ar	15 (HJ-63-55)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.699	25.3	91			initial age disturbed by later metamorphism			
1673	1	1375.14		biotite	conventional K-Ar	16 (LS-129B)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.33	277	98			initial age disturbed by later metamorphism			
1674	1	1348		biotite	conventional K-Ar	17 (LS-129A)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.48	187	94			initial age disturbed by later metamorphism			
1674	2	1488.37		muscovite	conventional K-Ar	17(LS-129A)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.62	287	97			initial age disturbed by later metamorphism			
1675	1	1291.64		biotite	conventional K-Ar	18 (LS-40A)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.98	244	96			initial age disturbed by later metamorphism			
1676	1	1247.84		biotite	conventional K-Ar	19 (LS-129C)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.92	231	91			initial age disturbed by later metamorphism			
1677	1	1448.25		whole rock	conventional K-Ar	20 (LS-40F)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.26	72.3	96			initial age disturbed by later metamorphism			
1678	1	1444.98		biotite	conventional K-Ar	21 (LS-110)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.68	213	94			initial age disturbed by later metamorphism			
1678	2	1463.4		muscovite	conventional K-Ar	21 (LS-110)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.25	203	90			initial age disturbed by later metamorphism			
1679	1	1157.24		muscovite	conventional K-Ar	22 (LS-111)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.19	238	97			initial age disturbed by later metamorphism			
1680	1	1436.53		biotite	conventional K-Ar	23 (LS-43A)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.27	135	95			initial age disturbed by later metamorphism		K20 SEEMS LOW--COMPILER	INITIAL AGE IS ABOUT 2700 M.Y.
1680	2	1736.42		hornblende	conventional K-Ar	23 (LS-43A)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.916	38.5	97			initial age disturbed by later metamorphism			INITIAL AGE IS ABOUT 2700 M.Y.
1681	1	1374.62		biotite	conventional K-Ar	24 (LS-115)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.87	263.2	98			initial age disturbed by later metamorphism			INITIAL AGE IS ABOUT 2700 M.Y.
1681	2	1184.19		K feldspar	conventional K-Ar	24 (LS-115)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.54	254	99			initial age disturbed by later metamorphism			INITAL AGE IS ABOUT 2700 M.Y.
1682	1	1171.72		biotite	conventional K-Ar	25A (LA-114A)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.43	224	97			initial age disturbed by later metamorphism			INITIAL AGE IS ABOUT 2700 M.Y.
1682	2	1167.49		K feldspar	conventional K-Ar	25A (LS-114A)	"4.72E-04, 0.585E-04, 1.19E-04*"	15.78	373	99			initial age disturbed by later metamorphism			INITIAL AGE IS ABOUT 2700 M.Y.
1684	1	1376.27		biotite	conventional K-Ar	29 (LS-126)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.71	140	97			initial age disturbed by later metamorphism		(K20 SEEMS LOW--COMPILER)	INITIAL AGE IS AROUND 2700 M.Y.
1684	2	1154.54		K feldspar	conventional K-Ar	29 (LS-126)	"4.72E-04, 0.585E-04, 1.19E-04*"	14.41	335.5	99			initial age disturbed by later metamorphism			INITIAL AGE IS AROUND 2700 M.Y.
1685	1	927.23		K feldspar	conventional K-Ar	30 (LS-109)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.22	126	97						K-FELDSPAR PROBABLY LEAKED ARGON; INITIAL AGE IS PROBABLY AROUND 2700 M.Y.
1686	1	1763.97		muscovite	conventional K-Ar	31 (LS-25C)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.4	448	99			minimum age of intrusion			
1687	1	978.64		whole rock	conventional K-Ar	32 (HJ-144-51)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.16	21.7	90			minimum age of intrusion			
1689	1	438.31	13	riebeckite	conventional K-Ar	95	"4.72E-04, 0.585E-04, 1.19E-04*"	0.931	6.65	96		Zartman (1977)	minimum age of intrusion			
1690	1	466.06	14	riebeckite	conventional K-Ar	96	"4.72E-04, 0.585E-04, 1.19E-04*"	0.768	5.88	95		Zartman (1977)	age of intrusion			
1691	1	451.57	13	riebeckite	conventional K-Ar	97	"4.72E-04, 0.585E-04, 1.19E-04*"	0.953	7.04	93		Zartman (1977)	age of intrusion			
1692	1	445.29	13	riebeckite	conventional K-Ar	98	"4.72E-04, 0.585E-04, 1.19E-04*"	0.612	4.45	92		Zartman (1977)	age of intrusion			
1694	1	445.01	13	riebeckite	conventional K-Ar	211	"4.72E-04, 0.585E-04, 1.19E-04*"	0.962	6.99	91		Zartman (1977)	minimum age of intrusion			
1694	2	936.56	28	pyroxenes	conventional K-Ar	211	"4.72E-04, 0.585E-04, 1.19E-04*"	0.198	3.5	75		Zartman (1977)	"sample contains excess radiogenic argon, age is too old"			
1697	1	307.66	9	riebeckite	conventional K-Ar	213	"4.72E-04, 0.585E-04, 1.19E-04*"	1.876	9.06	92		Zartman (1977)	initial age disturbed by later metamorphism			
1699	1	387.34	11	hornblende	conventional K-Ar	164	"4.72E-04, 0.585E-04, 1.19E-04*"	1.778	11.06	97		Zartman (1977)	minimum age of intrusion			
1702	1	359.06	11	biotite	conventional K-Ar	165D	"4.72E-04, 0.585E-04, 1.19E-04*"	6.78	38.78	92		Zartman (1977)	age meaning uncertain (geologic factors)			
1703	1	400.33	12	riebeckite	conventional K-Ar	166	"4.72E-04, 0.585E-04, 1.19E-04*"	1.108	7.15	97		Zartman (1977)	age meaning uncertain (geologic factors)			
1705	1	404.98	12	hornblende	conventional K-Ar	168	"4.72E-04, 0.585E-04, 1.19E-04*"	1.282	8.38	98		Zartman (1977)	age meaning uncertain (geologic factors)			
1707	1	381.45	11	hornblende	conventional K-Ar	170	"4.72E-04, 0.585E-04, 1.19E-04*"	1.125	6.88	97		Zartman (1977)	age of intrusion			
1708	1	397.11	12	hornblende	conventional K-Ar	260	"4.72E-04, 0.584E-04, 1.19E-04*"	1.24	7.93	97		Zartman (1977)	minimum age of intrusion			
1710	1	376.77	11	hornblende	conventional K-Ar	60B	"4.72E-04, 0.585E-04, 1.19E-04*"	0.925	5.58	94		Zartman (1977)	age of intrusion			
1711	1	410.88	12	hornblende	conventional K-Ar	90	"4.72E-04, 0.585E-04, 1.19E-04*"	0.712	4.73	95		Zartman (1977)	maximum age of intrusion			
1712	1	392.02	12	hornblende	conventional K-Ar	91	"4.72E-04, 0.585E-04, 1.19E-04*"	0.671	4.23	95		Zartman (1977)	age of intrusion			
1713	1	376.22	11	hornblende	conventional K-Ar	92	"4.72E-04, 0.585E-04, 1.19E-04*"	0.885	5.33	94		Zartman (1977)	age of intrusion			
1714	1	357.98	10	hornblende	conventional K-Ar	171	"4.72E-04, 0.585E-04, 1.19E-04*"	1.37	7.81	96		Zartman (1977)	age of intrusion			
1714	2	374.1	11	biotite	conventional K-Ar	171	"4.72E-04, 0.585E-04, 1.19E-04*"	7.98	47.76	98		Zartman (1977)	age of intrusion			
1715	1	498.44	15	biotite	conventional K-Ar	88-2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.35	60.75	95		Zartman (1977)	age of intrusion			
1716	1	421.67	12	biotite	conventional K-Ar	160	"4.72E-04, 0.585E-04, 1.19E-04*"	8.26	56.49	98		Zartman (1977)	minimum age of intrusion			
1717	1	417.4	12	biotite	conventional K-Ar	161-A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.67	58.62	96		Zartman (1977)	age of intrusion			
1724	1	1237.52		biotite	conventional K-Ar	26 (LS-54)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.32	213	96			initial age disturbed by later metamorphism			
1724	2	1359.73		muscovite	conventional K-Ar	26 (LS-54)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.18	268.2	98			initial age disturbed by later metamorphism			
1724	3	1087.5		K feldspar	conventional K-Ar	26 (LS-54)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.98	107	95			initial age disturbed by later metamorphism			
1725	1	1383.65		biotite	conventional K-Ar	27 (LS-53)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.31	189	95			initial age disturbed by later metamorphism			
1725	2	1589.67		hornblende	conventional K-Ar	27 (LS-53)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.17	42.96	98			initial age disturbed by later metamorphism			
1726	1	1357.22		biotite	conventional K-Ar	28 (LS-125)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.53	132	89			initial age disturbed by later metamorphism			
1726	2	1371.31		hornblende	conventional K-Ar	28 (LS-125)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.443	13.1	94			initial age disturbed by later metamorphism			
1727	1	1062.61	34	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.42	154.6				age of intrusion			
1728	1	1048	11	plagioclase	39Ar-40Ar incremental (plateau)	DEL-93	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		PLATEAU AGE	INITIAL AGE IS THOUGHT TO BE AROUND 1130 M.Y.
1728	2	1127	34	plagioclase	conventional K-Ar	DEL-93	"4.72E-04, 0.585E-04, 1.19E-04"									THIS AGE IS NOT IN AGREEMENT WITH 40AR/39AR AGES
1728	3	1015.88	31	plagioclase	conventional K-Ar	DEL-93	"4.72E-04, 0.585E-04, 1.19E-04*"	0.332	6.52				initial age disturbed by later metamorphism			AUTHORS BELIEVE LOW-GRADE METAMORPHIC EVENT IS RESPONSIBLE FOR LOWER AGE
1728	4	1057	12	plagioclase	40Ar/36Ar-40K/36Ar isochron	DEL-93	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		ISOCHRON AGE OF PLATEAU POINTS	
1728	5	1024	20	plagioclase	39Ar-40Ar total fusion	DEL-93	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		TOTAL FUSION	
1729	1	1896		biotite	conventional K-Ar	KA-66	"4.76E-04, 0.589E-04, 1.18E-04*"	6.31	305				initial age disturbed by later metamorphism			
1730	1	1610		whole rock	conventional K-Ar	KA-278	"4.76E-04, 0.589E-04, 1.18E-04*"	6.68	250				initial age disturbed by later metamorphism			
1731	1	1628		muscovite	conventional K-Ar	KA-68	"4.76E-04, 0.589E-04, 1.18E-04*"	10.19	388				initial age disturbed by later metamorphism			
1732	1	1165		K feldspar		OSA	"4.76E-04, 0.589E-04, 1.18E-04*"	11.8	278						NO AGE REPORTED	
1733	1	1358		whole rock	conventional K-Ar	KA-238	"4.76E-04, 0.589E-04, 1.18E-04*"	7.13	208				initial age disturbed by later metamorphism			
1734	1	1732		biotite	conventional K-Ar	KA-45	"4.76E-04, 0.589E-04, 1.18E-04*"	7.88	330				initial age disturbed by later metamorphism		ARGON VALUE IS AVERAGE OF 3 DETERMINATIONS.	
1735	1	1669		muscovite	conventional K-Ar	KA-184	"4.76E-04, 0.589E-04, 1.18E-04*"	9.23	365				age of intrusion			
1736	1	1437		biotite	conventional K-Ar	KA-12	"4.76E-04, 0.589E-04, 1.18E-04*"	6.45	204				age not evaluated			
1736	2	932.26		K feldspar		KA-12		12.69	223						NO AGE GIVEN	
1737	1	1491		biotite	conventional K-Ar	KA-330	"4.76E-04, 0.589E-04, 1.18E-04*"	9.38	313				age not evaluated			
1738	1	400.3	19	muscovite	conventional K-Ar	1 (CONNECTICUT)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	53.04	97			age not evaluated			
1739	1	321.57	16	biotite	conventional K-Ar	2 (CONNECTICUT)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.54	43.28	94			initial age disturbed by later metamorphism			
1740	1	321.92	16	biotite	conventional K-Ar	3 (CONNECTICUT)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.84	39.78	95			initial age disturbed by later metamorphism			
1741	1	250.44	7	muscovite	conventional K-Ar	4 (CONNECTICUT)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.22	39.53	74			age of intrusion			
1742	1	237.66	7	biotite	conventional K-Ar	5 (CONNECTICUT)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.1	33.28	93			age of later metamorphism			
1743	1	239.56	7	biotite	conventional K-Ar	6 (CONNECTICUT)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.41	31.02	96			age of later metamorphism			
1744	1	244.37	7	biotite	conventional K-Ar	1 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.435	31.78	94			age of later metamorphism			
1745	1	234	10	biotite	conventional K-Ar	2 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.33	22.77	95			age of later metamorphism			
1745	2	253.14	10	muscovite	conventional K-Ar	2 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.72	38.03	96			age of later metamorphism			
1746	1	233.42	10	biotite	conventional K-Ar	3 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.88	28.27	94			age of later metamorphism			
1747	1	204.04	10	biotite	conventional K-Ar	4 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.17	28.52	77			age of later metamorphism			
1748	1	218.98	10	biotite	conventional K-Ar	5 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.21	27.52	94			age of later metamorphism			
1749	1	202.32	12	biotite	conventional K-Ar	6 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.82	30.27	96			age of later metamorphism			
1750	1	202.87	10	biotite	conventional K-Ar	7 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.66	26.77	89			age of later metamorphism			
1751	1	236.51	8	biotite	conventional K-Ar	8 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.77	28.27	96			age of later metamorphism			
1752	1	232.64	8	biotite	conventional K-Ar	9 (RHODE ISLAND)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	31.53	97			age of later metamorphism			
1753	1	363.23	11	biotite	conventional K-Ar	1 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.12	47.04	98			initial age disturbed by later metamorphism			
1753	2	380.11	12	hornblende	conventional K-Ar	1 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.265	7.706	88			minimum age of intrusion			
1754	1	315.74	9	biotite	conventional K-Ar	2 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.36	41.53	81			initial age disturbed by later metamorphism			
1755	1	311.44	15	hornblende	conventional K-Ar	3 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.68	3.328	78			initial age disturbed by later metamorphism			
1756	1	352.18	10	muscovite	conventional K-Ar	4 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	48.04	83			initial age disturbed by later metamorphism			
1756	1	352.18	10	muscovite	conventional K-Ar	4 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	48.04	83			initial age disturbed by later metamorphism			
1757	1	345.25	12	biotite	conventional K-Ar	5 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.71	31.28	66			initial age disturbed by later metamorphism			
1758	1	318.2	9	hornblende	conventional K-Ar	6 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.403	2.019	41			initial age disturbed by later metamorphism			
1759	1	507.88	15	biotite	conventional K-Ar	7 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.117	9.433	56			minimum age of metamorphic crystallization			
1760	1	327.65	9	whole rock	conventional K-Ar	8 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.025	20.82	85			initial age disturbed by later metamorphism			
1761	1	268.73	8	biotite	conventional K-Ar	9 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.46	26.95	92			age of later metamorphism			
1762	1	257.76	8	biotite	conventional K-Ar	10 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.22	36.78	91			age of later metamorphism			
1762	2	238.49	8	muscovite	conventional K-Ar	10 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.36	38.03	84			initial age disturbed by later metamorphism			
1763	1	248.69	13	biotite	conventional K-Ar	11 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.06	34.78	92			age of later metamorphism			
1764	1	245.74	8	muscovite	conventional K-Ar	12 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.34	35.4	92			age of later metamorphism			
1765	1	323.05	9	biotite	conventional K-Ar	13 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.99	45.79	95			initial age disturbed by later metamorphism			
1766	1	335.37	17	muscovite		14 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.09	53.54	92			initial age disturbed by later metamorphism			
1767	1	284.75	10	muscovite	conventional K-Ar	15 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.48	46.54	94			initial age disturbed by later metamorphism			
1768	1	337.63	18	hornblende	conventional K-Ar	16 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.66	3.528	66			initial age disturbed by later metamorphism			
1769	1	340	9	biotite	conventional K-Ar	17 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.06	38.03	93			initial age disturbed by later metamorphism			
1770	1	296.91	15	whole rock	conventional K-Ar	18 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.89	8.782	74			minimum age of intrusion			
1771	1	307.99	15	whole rock	conventional K-Ar	19 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.177	0.8558	22			minimum age of intrusion			
1772	1	312.36	9	muscovite	conventional K-Ar	20 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.65	52.29	94			initial age disturbed by later metamorphism			
1773	1	313.9	15	hornblende	conventional K-Ar	21 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.251	1.239	41			initial age disturbed by later metamorphism			
1774	1	260.14	8	whole rock	conventional K-Ar	22 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.36	5.479	88			minimum age of intrusion			
1775	1	265.55	8	biotite	conventional K-Ar	23 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.477	18.44	88			initial age disturbed by later metamorphism			
1775	2	367	10	hornblende	conventional K-Ar	23 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.217	7.131	81			minimum age of intrusion			
1776	1	403.29	12	biotite	conventional K-Ar	24 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.98	51.92	92			minimum age of intrusion			
1777	1	416.52	12	whole rock	conventional K-Ar	25 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.65	11.13	82			minimum age of intrusion			
1778	1	363.46	8	biotite	conventional K-Ar	26 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.64	44.29	84			age of later metamorphism			
1779	1	358.82	8	hornblende	conventional K-Ar	27 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.963	5.504	40			minimum age of intrusion			
1780	1	363.4	10	hornblende	conventional K-Ar	28 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.118	6.48	59			minimum age of intrusion			
1781	1	361.3	10	hornblende	conventional K-Ar	29 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.59	9.157	46			minimum age of intrusion			
1782	1	417.77	16	hornblende	conventional K-Ar	30 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.22	8.257	84			minimum age of intrusion			
1783	1	365.29	10	biotite	conventional K-Ar	31 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.555	44.04	90			minimum age of intrusion			
1784	1	342.36	15	whole rock	conventional K-Ar	32 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.3	7.056	62			minimum age of intrusion			
1785	1	425.71	16	whole rock	conventional K-Ar	33 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.6	11.06	86			"sample contains inherited material, age is too old"			
1785	2	359.88	10	muscovite	conventional K-Ar	33 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.16	46.79	90				60-80 MESH FRACTION		MIXED AGE OF DETRITAL MUSCOVITE
1785	3	298.99	8	muscovite	conventional K-Ar	33 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.39	39.28	90				80-120 MESH FRACTION		AGE OF DETRITAL MUSCOVITE IS IN FAIR AGREEMENT WITH STRATIGRAPHIC AGE
1786	1	300.42	10	whole rock	conventional K-Ar	34 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.1	9.883	97						PERMIAN AGE IS PROBABLY FORTUITOUS
1786	2	348.4	9	muscovite	conventional K-Ar	34 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.315	51.54	96			"sample contains inherited material, age is too old"	35-45 MESH		
1786	3	330.09	10	muscovite	conventional K-Ar	34 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.82	40.78	98			"sample contains inherited material, age is too old"	45-60 MESH		
1786	4	388.23	8	muscovite	conventional K-Ar	34 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.98	43.53	94			"sample contains inherited material, age is too old"	LESS THAN 60 MESH		
1787	1	380.38	19	biotite	conventional K-Ar	35 (MASSACHUSETTS)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.495	51.79	96			minimum age of intrusion			
1788	1	336.1	10	muscovite	conventional K-Ar	1 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.16	54.04	75			initial age disturbed by later metamorphism			
1789	1	225.32	6	biotite	conventional K-Ar	2 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.47	25.81	84			age of later metamorphism			
1789	2	237.39	10	muscovite	conventional K-Ar	2 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.31	37.66	79			age of later metamorphism			
1790	1	329.5	10	biotite	conventional K-Ar	3 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.96	31.02	90			initial age disturbed by later metamorphism			
1791	1	274.69	8	muscovite	conventional K-Ar	4 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.31	44.04	85			initial age disturbed by later metamorphism			
1792	1	271.28	8	muscovite	conventional K-Ar	5 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.39	43.79	90			initial age disturbed by later metamorphism			
1793	1	345.51	15	muscovite	conventional K-Ar	6 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.72	53.29	83			initial age disturbed by later metamorphism			
1794	1	337.05	10	muscovite	conventional K-Ar	7 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.66	51.54	87			initial age disturbed by later metamorphism			
1795	1	301.07	9	muscovite	conventional K-Ar	8 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.76	46.04	89			initial age disturbed by later metamorphism			
1796	1	336.85	10	biotite	conventional K-Ar	9 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.5	23.994	90			initial age disturbed by later metamorphism			
1797	1	257.78	7	biotite	conventional K-Ar	10 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.71	26.77	95			age of later metamorphism			
1798	1	328.83	10	biotite	conventional K-Ar	11 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.89	35.78	94			initial age disturbed by later metamorphism			
1798	2	281.66	8	muscovite	conventional K-Ar	11 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.64	33.53	92			initial age disturbed by later metamorphism			
1799	1	259.65	7	biotite	conventional K-Ar	12 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.78	31.28	79			age of later metamorphism			
1800	1	330.3	10	biotite	conventional K-Ar	13 (NEW HAMPSHIRE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.15	42.53	95			initial age disturbed by later metamorphism			
1801	1	254.89	8	biotite	conventional K-Ar	1 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.87	31.02	81			age of later metamorphism			
1802	1	256.01	8	biotite	conventional K-Ar	2 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.53	33.78	93			age of later metamorphism			
1803	1	350.51	10	biotite	conventional K-Ar	3 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.51	47.4	100			initial age disturbed by later metamorphism			
1804	1	301.02	9	biotite	conventional K-Ar	4 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.48	16.413				initial age disturbed by later metamorphism			
1805	1	252.61	8	biotite	conventional K-Ar	5 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.89	22.993	89			age of later metamorphism			
1806	1	299.79	9	biotite	conventional K-Ar	6 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.5	30.52	100			initial age disturbed by later metamorphism			
1807	1	254.89	8	biotite	conventional K-Ar	7 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.87	31.02	89			age of later metamorphism			
1808	1	405.85	12	biotite	conventional K-Ar	8 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.86	18.74	86			minimum age of intrusion			
1809	1	393.07	12	biotite	conventional K-Ar	9 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.27	52.29	98			minimum age of intrusion			
1810	1	382.95	11	biotite	conventional K-Ar	10 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.68	41.03	100			minimum age of intrusion			
1811	1	267.56	8	biotite	conventional K-Ar	11 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.35	30.52	98			age of later metamorphism			
1812	1	303.12	9	muscovite	conventional K-Ar	12 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.53	50.04	90			initial age disturbed by later metamorphism			
1813	1	374.95	11	biotite	conventional K-Ar	13 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.59	51.54	87			minimum age of intrusion			
1814	1	284.45	8	biotite	conventional K-Ar	14 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.63	38.28	99			initial age disturbed by later metamorphism			
1815	1	332.26	10	biotite	conventional K-Ar	15 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	43.28	93			initial age disturbed by later metamorphism			
1816	1	364.15	11	biotite	conventional K-Ar	16 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.03	35.03	96			minimum age of metamorphic crystallization			
1817	1	370.03	11	biotite	conventional K-Ar	17 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.02	23.77	93			minimum age of metamorphic crystallization			
1818	1	380.38	11	biotite	conventional K-Ar	18 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.29	50.54	96			minimum age of intrusion			
1819	1	396.41	12	biotite	conventional K-Ar	19 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.86	56.55	100			minimum age of intrusion			
1820	1	357.8	11	biotite	conventional K-Ar	20 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	47.29	92			minimum age of intrusion			
1821	1	360.69	11	biotite	conventional K-Ar	21 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.92	34.03	93			initial age disturbed by later metamorphism			
1822	1	334.07	10	biotite	conventional K-Ar	22 (MAINE)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.83	25.52	100			initial age disturbed by later metamorphism			
1823	1	407.03	8	biotite	conventional K-Ar	ME-2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.86	51.67	76			initial age disturbed by later metamorphism		ARGON VALUE IS AVERAGE OF REPLICATE DETERMATIONS	
1824	1	361.93	7	biotite	conventional K-Ar	ME-3	"4.72E-04, 0.585E-04, 1.19E-04*"	6.96	40.16	74			initial age disturbed by later metamorphism		ARGON VALUE IS AVERAGE OF REPLICATE DETERMINATIONS	
1825	1	366.95	7	biotite	conventional K-Ar	ME-4A	"4.72E-04, 0.585E-04, 1.19E-04*"	7.43	43.53	87			initial age disturbed by later metamorphism	CONCENTRATE HEADS		
1825	2	357.56	7	biotite	conventional K-Ar	ME-4B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.47	42.53	77			initial age disturbed by later metamorphism	TAILS OF MINERAL CONCENTRATE		
1826	1	407.81	8	biotite	conventional K-Ar	ME-5	"4.72E-04, 0.585E-04, 1.19E-04*"	7.52	49.54	94			initial age disturbed by later metamorphism		ARGON VALUE IS AVERAGE OF REPLICATE DETERMINATIONS	
1827	1	364.32	7	biotite	conventional K-Ar	ME-6	"4.72E-04, 0.585E-04, 1.19E-04*"	6.71	39	86			age of intrusion		ARGON VALUE IS AVERAGE OF 2 DETERMINATIONS	
1828	1	364.03	7	biotite	conventional K-Ar	ME-7	"4.72E-04, 0.585E-04, 1.19E-04*"	5.86	34.03	83			age of intrusion			
1829	1	474	9	biotite	conventional K-Ar	ME-8	"4.72E-04, 0.585E-04, 1.19E-04*"	5.19	40.53	72			age of intrusion		ARGON VALUE IS AVERAGE OF REPLICATE DETERMINATIONS	
1830	1	387.34	7	biotite	conventional K-Ar	ME-9A	"4.72E-04, 0.585E-04, 1.19E-04*"	5.31	33.03	82			initial age disturbed by later metamorphism	CONCENTRATE HEADS		
1830	2	381.24	7	biotite	conventional K-Ar	ME-9B	"4.72E-04, 0.585E-04, 1.19E-04*"	4.83	29.52	68			initial age disturbed by later metamorphism	TAILS OF MINERAL CONCENTRATE		
1831	1	367.18	7	biotite	conventional K-Ar	ME-10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.45	49.54	96			age of intrusion			
1832	1	398.2	8	biotite	conventional K-Ar	ME-11	"4.72E-04, 0.585E-04, 1.19E-04*"	6.63	42.53	81			minimum age of intrusion			
1833	1	407.2	8	biotite	conventional K-Ar	ME-13	"4.72E-04, 0.585E-04, 1.19E-04*"	7.04	46.3	88			age of metamorphic crystallization		ARGON VALUE IS AVERAGE OF 3 DETERMINATIONS	
1834	1	410.37	8	biotite	conventional K-Ar	ME-13	"4.72E-04, 0.585E-04, 1.19E-04*"	5.82	38.61	88			minimum age of intrusion		ARGON VALUE IS AVERAGE OF 3 DETERMINATIONS	
1835	1	414.79	8	biotite	conventional K-Ar	ME-14	"4.72E-04, 0.585E-04, 1.19E-04*"	6.82	45.79	89			minimum age of intrusion			
1836	1	414.21	8	biotite	conventional K-Ar	ME-15	"4.72E-04, 0.585E-04, 1.19E-04*"	6.98	46.79	89			age of intrusion			
1837	1	412	8	biotite	conventional K-Ar	ME-16	"4.72E-04, 0.585E-04, 1.19E-04*"	6.27	41.78	92			initial age disturbed by later metamorphism			
1838	1	365.11	7	biotite	conventional K-Ar	ME-17	"4.72E-04, 0.585E-04, 1.19E-04*"	4.6	26.8	76			initial age disturbed by later metamorphism		ARGON VALUE IS AVERAGE OF REPLICATE DETERMINATIONS	
1840	1	376.46	7	biotite	conventional K-Ar	ME-19	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	49.54	94			age of intrusion			
1841	1	374.8	7	biotite	conventional K-Ar	ME-20	"4.72E-04, 0.585E-04, 1.19E-04*"	7.51	45.04	71			minimum age of intrusion			
1842	1	343.39	7	biotite	conventional K-Ar	ME-21	"4.72E-04, 0.585E-04, 1.19E-04*"	6.8	37.03	84			minimum age of intrusion			
1843	1	377.16	7	biotite	conventional K-Ar	ME-22	"4.72E-04, 0.585E-04, 1.19E-04*"	8.41	50.79	89			age of intrusion			
1844	1	379.93	7	biotite	conventional K-Ar	ME-23	"4.72E-04, 0.585E-04, 1.19E-04*"	6.78	41.28	90			minimum age of intrusion			
1845	1	404.39	8	biotite	conventional K-Ar	ME-24	"4.72E-04, 0.585E-04, 1.19E-04*"	4.6	30.02	93			age of intrusion			
1846	1	391.67	8	biotite	conventional K-Ar	ME-26	"4.72E-04, 0.585E-04, 1.19E-04*"	7.39	46.54	98			age of intrusion			
1847	1	401.24	8	biotite	conventional K-Ar	ME-27	"4.72E-04, 0.585E-04, 1.19E-04*"	6.69	43.28	89			age of intrusion			
1848	1	390.8	8	biotite	conventional K-Ar	ME-28A	"4.72E-04, 0.585E-04, 1.19E-04*"	9	56.54	98			age of intrusion			
1848	2	394.63	8	biotite	conventional K-Ar	ME-28B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.18	58.3	99			age of intrusion			
1849	1	384.11	7	biotite	conventional K-Ar	ME-29	"4.72E-04, 0.585E-04, 1.19E-04*"	6.82	42.03	88			age meaning uncertain (analysis questionable)			
1850	1	401.44	8	biotite	conventional K-Ar	ME-30	"4.72E-04, 0.585E-04, 1.19E-04*"	6.3	40.78	96			age of intrusion			
1851	1	402.07	8	biotite	conventional K-Ar	ME-31	"4.72E-04, 0.585E-04, 1.19E-04*"	7.37	47.79	81			age of intrusion			
1852	1	394.65	8	biotite	conventional K-Ar	ME-32	"4.72E-04, 0.585E-04, 1.19E-04*"	8.43	53.54	99			age of intrusion			
1853	1	390.87	8	biotite	conventional K-Ar	ME-33	"4.72E-04, 0.585E-04, 1.19E-04*"	8.68	54.54	100			age of intrusion			
1854	1	391.59	8	biotite	conventional K-Ar	ME-34	"4.72E-04, 0.585E-04, 1.19E-04*"	8.94	56.29	82			age of intrusion			
1855	1	408.1	8	biotite	conventional K-Ar	ME-35	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	58.15	99			age of intrusion		ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
1856	1	366.51	7	whole rock	conventional K-Ar	ME-36	"4.72E-04, 0.585E-04, 1.19E-04*"	4.96	29.02	95			age meaning uncertain (analysis questionable)			
1857	1	363.17	8	biotite	conventional K-Ar	ME-37	"4.72E-04, 0.585E-04, 1.19E-04*"	9.33	54.04	100			initial age disturbed by later metamorphism			
1858	1	373.07	7	biotite	conventional K-Ar	ME-38	"4.72E-04, 0.585E-04, 1.19E-04*"	9.35	55.79	90			age of intrusion			
1859	1	364.25	7	biotite	conventional K-Ar	ME-39	"4.72E-04, 0.585E-04, 1.19E-04*"	8.31	48.29	92			minimum age of intrusion			
1860	1	370.79	7	biotite	conventional K-Ar	ME-40	"4.72E-04, 0.585E-04, 1.19E-04*"	8.57	50.79	63			minimum age of intrusion			
1862	1	394.21	8	biotite	conventional K-Ar	ME-42	"4.72E-04, 0.585E-04, 1.19E-04*"	8.48	53.79	77			age of intrusion			
1863	1	336.25	7	biotite	conventional K-Ar	ME-43	"4.72E-04, 0.585E-04, 1.19E-04*"	6.16	32.78	99			initial age disturbed by later metamorphism			
1863	2	382.88	8	muscovite	conventional K-Ar	ME-43	"4.72E-04, 0.585E-04, 1.19E-04*"	10.43	64.05	91			minimum age of intrusion			
1864	1	312.22	6	biotite	conventional K-Ar	NH-1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.24	35.53	99			age of intrusion			
1864	2	239.1	5	muscovite	conventional K-Ar	NH-1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.83	25.14	93			minimum age of metamorphic crystallization		ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
1865	1	289.74	6	biotite	conventional K-Ar	NH-2	"4.72E-04, 0.585E-04, 1.19E-04*"	6.8	30.77	97			initial age disturbed by later metamorphism			
1865	2	263.08	5	muscovite	conventional K-Ar	NH-2	"4.72E-04, 0.585E-04, 1.19E-04*"	10.43	42.53	99			initial age disturbed by later metamorphism			
1866	1	251.36	5	biotite	conventional K-Ar	NH-3	"4.72E-04, 0.585E-04, 1.19E-04*"	9.15	35.53	97			initial age disturbed by later metamorphism			
1866	2	251.57	5	muscovite	conventional K-Ar	NH-3	"4.72E-04, 0.585E-04, 1.19E-04*"	10.75	41.78	99			initial age disturbed by later metamorphism			
1867	1	285.41	6	muscovite	conventional K-Ar	NH-5	"4.72E-04, 0.585E-04, 1.19E-04*"	9.16	40.78	96			initial age disturbed by later metamorphism			
1869	1	253.31	5	biotite	conventional K-Ar	NH-6	"4.72E-04, 0.585E-04, 1.19E-04*"	9.33	36.53	96			initial age disturbed by later metamorphism			
1870	1	269.13	5	biotite	conventional K-Ar	NH-7	"4.72E-04, 0.585E-04, 1.19E-04*"	9.52	39.78	97			initial age disturbed by later metamorphism			
1871	1	140.34	3	biotite	conventional K-Ar	VT-2	"4.72E-04, 0.585E-04, 1.19E-04*"	6.43	13.51	92			age of metamorphic crystallization			
1872	1	127.84	2	biotite	conventional K-Ar	VT-3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.96	17.09	81			age of intrusion			
1873	1	340.67	6	biotite	conventional K-Ar	VT-4	"4.72E-04, 0.585E-04, 1.19E-04*"	9.64	52.04	99			age not evaluated			
1875	1	413.23	8	muscovite	conventional K-Ar	VT-7	"4.72E-04, 0.585E-04, 1.19E-04*"	9.58	64.05	97			initial age disturbed by later metamorphism			
1878	1	330.34	6	biotite	conventional K-Ar	VT-12	"4.72E-04, 0.585E-04, 1.19E-04*"	9.54	49.79	99			initial age disturbed by later metamorphism			
1878	2	343.84	7	muscovite	conventional K-Ar	VT-12	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	46.79	99			initial age disturbed by later metamorphism			
1879	1	356.4	7	biotite	conventional K-Ar	VT-19	"4.72E-04, 0.585E-04, 1.19E-04*"	9.57	54.29	99			age of intrusion		(PUBLISHED POTASSIUM VALUE IS WRONG--COMPILER)	
1887	1	1112.06	40	hornblende	conventional K-Ar	822-2	"4.72E-04, 0.585E-04, 1.19E-04*"	1.32	29.22							AGE APPEARS TO BE TOO OLD
1899	1	1105		whole rock	39Ar-40Ar total fusion	L-5	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		40AR/39AR TOTAL FUSION AGE	
1899	2	1135		whole rock	39Ar-40Ar incremental (plateau)	L-5	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		40AR/39AR PLATEAU AGE	
1900	1	1155		whole rock	39Ar-40Ar total fusion	MN38	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	SLIGHTLY ALTERED AUGITE	40AR/39AR TOTAL FUSION AGE	SAMPLE MAY HAVE BEEN AFFECTED BY INTRUSION OF DULUTH COMPLEX AT 1100 M.Y.
1900	2	1172		whole rock	39Ar-40Ar incremental (plateau)	MN38	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism	SLIGHTLY ALTERED AUGITE	40AR/39AR PLATEAU AGE	SAMPLE MAY HAVE BEEN AFFECTED BY INTRUSION OF DULUTH COMPLEX AT 1100 M.Y.
1901	1	1081		whole rock	39Ar-40Ar total fusion	RP-1	"4.72E-04, 0.585E-04, 1.19E-04"						age of later metamorphism		40AR/39AR TOTAL FUSION AGE	
1901	2	1095		whole rock	39Ar-40Ar incremental (plateau)	RP-1	"4.72E-04, 0.585E-04, 1.19E-04"						age of later metamorphism		40AR/39AR PLATEAU AGE	
1902	1	1082		whole rock	39Ar-40Ar total fusion	T164	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		40AR/39AR TOTAL FUSION AGE; MAXIUMUM STEP-RELEASE AGE IS 1138 M.Y.	
1903	1	2137		whole rock	39Ar-40Ar total fusion	MN9	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of intrusion		40AR/39AR TOTAL FUSION AGE	"WHOLE ROCK K-AR AGE IS 2240 M.Y. (HANSON AND MALHOTRA, 1971)"
1904	1	1263.45		hornblende	conventional K-Ar	0.4	"4.72E-04, 0.585E-04, 1.19E-04*"	0.564	14.86				initial age disturbed by later metamorphism		RADIOGENIC ARGON IS GREATER THAN 93%	ARGON LOSS BY THERMAL METAMORPHISM DUE TO EMPLACEMENT OF DULUTH COMPLEX AT 1100 M.Y.
1906	1	2046.43		hornblende	conventional K-Ar	1.7	"4.72E-04, 0.585E-04, 1.19E-04*"	0.728	39.88				initial age disturbed by later metamorphism		RADIOGENIC ARGON IS MORE THAN 93%	ARGON LOSS BY THERMAL METAMORPHISM DUE TO EMPLACEMENT OF DULUTH COMPLEX AT 1100 M.Y.
1906	2	1110.26		biotite	conventional K-Ar	1.7	"4.72E-04, 0.585E-04, 1.19E-04*"	9.05	199.9				initial age disturbed by later metamorphism		RADIOGENIC ARGON IS MORE THAN 93%	
1909	1	2632.62		hornblende	conventional K-Ar	9.5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.645	55.33				minimum age of intrusion		RADIOGENIC ARGON IS MORE THAN 93%	
1912	1	2626.84		hornblende	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	0.5736	49				"anomalous initial isotopic composition, age questionable"	FIELD NUMBER SS-4	K2O% AND 40AR-RAD(MOL/GM) COMPUTED BY COMPILER	
1918	1	2707.32	135	hornblende	conventional K-Ar	M8185	"4.72E-04, 0.584E-04, 1.19E-04*"	1.064	96.3	98			minimum age of metamorphic crystallization		POTASSIUM VALUE IS AVERAGE OF TWO MEASUREMENTS BY X-RAY FLUORESCENCE	
1919	1	2071.74	105	hornblende	conventional K-Ar	M8132	"4.72E-04, 0.584E-04, 1.19E-04*"	0.456	25.5	94			age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE ANALYSES. POTASSIUM DETERMINED BY X-RAY FLUORESCENCE	
1920	1	1792.91	90	whole rock	conventional K-Ar	M8305	"4.72E-04, 0.584E-04, 1.19E-04*"	1.24	54.8	96			"minimum age of intrusion, age of later metamorphism"		POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE ANALYSES. POTASSIUM DETERMINED BY X-RAY FLUORESCENCE	
1921	1	1718.05	85	hornblende	conventional K-Ar	M8306	"4.72E-04, 0.584E-04, 1.19E-04*"	0.82	33.9	90			age of intrusion		POTASSIUM VALUE IS AVERAGE OF TWO MEASUREMENTS MADE BY X-RAY FLUORESCENCE	
1922	1	1919.16	95	hornblende	conventional K-Ar	M8313	"4.72E-04, 0.584E-04, 1.19E-04*"	0.347	17.1	93			age meaning uncertain (analysis questionable)		POTASSIUM VALUE IS AVERAGE OF TWO MEASUREMENTS MADE BY X-RAY FLUORESCENCE	
1923	1	1724.75	85	hornblende	conventional K-Ar	M8314	"4.72E-04, 0.584E-04, 1.19E-04*"	0.892	37.1	96			age of intrusion		POTASSIUM VALUE IS AVERAGE OF TWO MEASUREMENTS MADE BY X-RAY FLUORESCENCE	
1923	2	1763.5	90	biotite	conventional K-Ar	M8314	"4.72E-04, 0.584E-04, 1.19E-04*"	8.99	387.1	96			age of intrusion		POTASSIUM VALUE IS AVERAGE OF THREE MEASUREMENTS MADE BY X-RAY FLUORESCENCE	
1924	1	1681.73	85	hornblende	conventional K-Ar	M8315	"4.72E-04, 0.584E-04, 1.19E-04*"	1.35	54	82			minimum age of intrusion		POTASSIUM DETERMINED BY X-RAY FLUORESCENCE	
1924	2	1792.27	90	biotite	conventional K-Ar	M8315	"4.72E-04, 0.584E-04, 1.19E-04*"	9.26	409	96			age of intrusion		POTASSIUM VALUE IS AVERAGE OF TWO MEASUREMENTS MADE BY X-RAY FLUORESCENCE	
1925	1	2641	135	biotite	conventional K-Ar	3	"4.72E-04, 0.58E-04, 1.22E-04*"	5.48	473	92			age of intrusion			
1926	1	450		glauconite	conventional K-Ar	KA113	"4.72E-04, 0.583E-04"	7.86					minimum age of volcanism	40-60 MESH		
1927	1	430		glauconite	conventional K-Ar	KA 114	"4.72E-04, 0.583E-04"	7.99					minimum age of volcanism	40-60 MESH		
1928	1	1208		illite group	conventional K-Ar	KA50	"4.72E-04, 0.583E-04*"	5.17	128				minimum age of volcanism	"SAMPLE COMPOSED OF 60% 2M-ILLITE, 3% CHLORITE, AND 37% PYROPHYLLITE, HEMATITE, ETC.; 40-60 MESH"	ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES.	
1936	1	1688.89	51	whole rock	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	0.953	38.37	98			minimum age of metamorphic crystallization	FIELD NUMBER MN-3	POTASSIUM DETERMINED BY X-RAY FLUORESCENCE; ARGON VALUE IS AVERAGE OF 2 ANALYSES	
1937	1	1571.42	47	whole rock	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	0.575	20.75	89			minimum age of metamorphic crystallization	FIELD NUMBER MN-4	POTASSIUM VALUE IS AVERAGE OF 5 SAMPLES; POTASSIUM DETERMINED BY X-RAY FLUORESCENCE	
1938	1	1527.21	23	whole rock	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	1.143	39.53	99			minimum age of metamorphic crystallization	FIELD NUMBER MN-5	POTASSIUM VALUE IS AVERAGE OF 2 DETERMINATIONS BY X-RAY FLUORESCENCE	
1939	1	1981.21	40	hornblende	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	0.575	29.85	95			minimum age of intrusion	"FIELD NUMBER MN-7, HORNBLENDE PARTIALLY ALTERED TO ACTINOLITE"	POTASSIUM AND ARGON VALUES ARE AVERAGES OF 2 DETERMINATIONS; POTASSIUM DETERMINED BY X-RAY FLUORESCENCE	
1939	2	1977.47	40	whole rock	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	0.982	50.82	99			minimum age of intrusion	FIELD NUMBER MN-7	POTASSIUM VALUE IS AVERAGE OF 3 DETERMINATIONS BY X-RAY FLUORESCENCE	
1940	1	1954.27	195	pyroxenes	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	0.29	14.72	96			minimum age of intrusion	FIELD NUMBER MN-8; ANALYZED MATERIAL CONTAINS PYROXENE PLUS HORNBLENDE AND BIOTITE	POTASSIUM VALUE IS AVERAGE OF 2 DETERMINATIONS BY X-RAY FLUORESCENCE	
1940	2	1768.76	35	whole rock	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	0.917	39.67	98			age not evaluated	FIELD NUMBER MN-8	POTASSIUM AND ARGON VALUES ARE AVERAGES OF 2 DETERMINATIONS; POTASSIUM DETERMINED BY X-RAY FLUORESCENCE	
1941	1	2228.73	224	whole rock	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	0.3	19.01	94			minimum age of intrusion	FIELD NUMBER MN-9	ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES; POTASSIUM VALUE IS AVERAGE OF 3 DETERMINATIONS BY X-RAY FLUORESCENCE	
1942	1	1739.88	52	whole rock	conventional K-Ar	7	"4.72E-04, 0.584E-04, 1.19E-04*"	0.907	38.24	98			age of metamorphic crystallization	FIELD NUMBER MN-12	POTASSIUM VALUE IS AVERAGE OF 3 DETERMINATIONS BY X-RAY FLUORESCENCE	
1943	1	1634.58	50	whole rock	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.19E-04*"	0.705	27	97			age of metamorphic crystallization	FIELD NUMBER MN-13	POTASSIUM VALUE IS AVERAGE OF 3 DETERMINATIONS BY X-RAY FLUORESCENCE	
1944	1	1403.02	42	whole rock	conventional K-Ar	9	"4.72E-04, 0.584E-04, 1.19E-04*"	0.971	29.67	98			minimum age of metamorphic crystallization	FIELD NUMBER MN-14	POTASSIUM VALUE IS AVERAGE OF 3 DETERMINATIONS MADE BY X-RAY FLUORESCENCE	
1945	1	1032.27	30	whole rock	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	0.545	10.93	87			age of intrusion	FIELD NUMBER ON23	POTASSIUM VALUE IS AVERAGE OF 2 DETERMINATIONS MADE BY X-RAY FLUORESCENCE	
1946	1	1109.58	33	whole rock	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	0.541	11.94	91			age of intrusion	FIELD NUMBER SH-45	POTASSIUM AND ARGON VALUES ARE AVERAGES OF 2 DETERMINATIONS; POTASSIUM DETERMINED BY X-RAY FLUORESCENCE	
1947	1	1061.84	15	whole rock	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.19E-04*"	1.226	25.52	97			age of intrusion	FIELD NUMBER MN-15	POTASSIUM VALUE IS AVERAGE OF 2 DETERMINATIONS BY X-RAY FLUORESCENCE	
1948	1	439	16	hornblende	conventional K-Ar	L-853H	"4.72E-04, 0.583E-04*"	5.7	40.78	96			minimum age of metamorphic crystallization	HORNBLENDE SEPARATE ESSENTIALLY PURE AND UNALTERED	HIGH POTASSIUM CONTENT FOR HORNBLENDE CONCENTRATE--COMPILER	
1949	1	321	12	hornblende	conventional K-Ar	L-857 H	"4.72E-04, 0.583E-04*"	1.81	9.157	95			initial age disturbed by later metamorphism			
1950	1	310	12	hornblende	conventional K-Ar	L-858H	"4.72E-04, 0.583E-04"	1.22	7.031	97			initial age disturbed by later metamorphism	NO VISIBLE BIOTITE IN HORNBLENDE SEPARATE; 99% PURE	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
1950	2	318.82	12	biotite	conventional K-Ar	L-858B	"4.72E-04, 0.583E-04*"	8.72	43.78	86			initial age disturbed by later metamorphism			
1951	1	331	12	muscovite	conventional K-Ar	L-860M	"4.72E-04, 0.583E-04*"	8.89	46.54	80			initial age disturbed by later metamorphism	MUSCOVITE SEPARATE NEARLY PURE; 1% CHLORITE		
1952	1	287	11	hornblende	conventional K-Ar	L-861H	"4.72E-04, 0.583E-04*"	1.22	5.454	94			initial age disturbed by later metamorphism	"HORNBLENDE SEPARATE HAS 2% IMPURITIES, NO BIOTITE"		
1953	1	295	11	biotite	conventional K-Ar	L-864B	"4.72E-04, 0.583E-04"	9.08	29.27	79			initial age disturbed by later metamorphism	BIOTITE SEPARATE HAS ABOUT 1% IMPURITIES		
1954	1	337	13	muscovite	conventional K-Ar	L-865M	"4.72E-04, 0.583E-04*"	9.48	50.54	82			initial age disturbed by later metamorphism	NEARLY PURE MUSCOVITE SEPARATE		
1955	1	305	12	biotite	conventional K-Ar	L-866B	"4.72E-04, 0.583E-04*"	9.79	46.79	80			initial age disturbed by later metamorphism	COARSE BIOTITE SEPARATE; PURE	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
1956	1	317	9	muscovite	conventional K-Ar	L-867M	"4.72E-04, 0.583E-04*"	10.63	53.04	85			initial age disturbed by later metamorphism	MUSCOVITE SEPARATE IS ABOUT 98% PURE; 1% BIOTITE		
1957	1	302	8	muscovite	conventional K-Ar	L-870M	"4.72E-04, 0.583E-04*"	10.24	48.54	93			minimum age of intrusion	SEPARATED MUSCOVITE IS ABOUT 95% PURE; SOME BIOTITE		
1958	1	292	11	muscovite	conventional K-Ar	L-872M	"4.72E-04, 0.583E-04*"	10.98	50.04	95			initial age disturbed by later metamorphism	"MUSCOVITE SEPARATE ABOUT 98% PURE, SOME BIOTITE"		
1959	1	263	10	biotite	conventional K-Ar	L-873B	"4.72E-04, 0.583E-04*"	7.99	32.53	95			age of later metamorphism	REDDISH-BROWN BIOTITE SEPARATE WITH 2% IMPURITIES		
1960	1	291	11	biotite	conventional K-Ar	L-874B	"4.72E-04, 0.583E-04*"	8.7	39.53	91			initial age disturbed by later metamorphism	SEPARATED BIOTITE IS 99% PURE		
1961	1	265	11	biotite	conventional K-Ar	L-875B	"4.72E-04, 0.583E-04"	6.39	31.77	85			initial age disturbed by later metamorphism	BIOTITE FRACTION IS ABOUT 95% PURE		
1961	2	421	16	hornblende	conventional K-Ar	L-875H	"4.72E-04, 0.583E-04*"	0.634	4.328	77			initial age disturbed by later metamorphism	TRACE OF BIOTITE IN HORNBLENDE CONCENTRATE	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
1962	1	244	10	muscovite	conventional K-Ar	L-879M	"4.72E-04, 0.583E-04*"	10.45	39.28	92			age of later metamorphism			
1963	1	331	13	muscovite	conventional K-Ar	L-881M	"4.72E-04, 0.583E-04*"	10.52	55.04	91			initial age disturbed by later metamorphism	"COARSE BOOK MUSCOVITE, 98% PURE"		
1964	1	288	11	muscovite	conventional K-Ar	L-882M	"4.72E-04, 0.583E-04*"	8.92	40.03	88			initial age disturbed by later metamorphism	ABOUT 98% PURE		
1965	1	309	12	biotite	conventional K-Ar	L-980B	"4.72E-04, 0.583E-04*"	9.53	46.29	89			initial age disturbed by later metamorphism	ESSENTIALLY PURE AND UNALTERED		
1966	1	340	13	biotite	conventional K-Ar	L-981B	"4.72E-04, 0.583E-04*"	9.25	49.79	92			initial age disturbed by later metamorphism	SOME ALTERED BIOTITE		
1967	1	323	13	biotite	conventional K-Ar	L-982B	"4.72E-04, 0.583E-04*"	9.1	46.29	94			initial age disturbed by later metamorphism	BIOTITE APPEARS UNALTERED		
1968	1	307	13	biotite	conventional K-Ar	L-983B	"4.72E-04, 0.583E-04*"	8.68	41.78	94			initial age disturbed by later metamorphism	BIOTITE CONCENTRATE IS 95% PURE		
1969	1	377	15	biotite	conventional K-Ar	L-984B	"4.72E-04, 0.583E-04*"	8	48.29	92			initial age disturbed by later metamorphism	SEPARATED BIOTITE APPEARS UNALTERED AND IS ESSENTIALLY PURE		
1970	1	368	14	biotite	conventional K-Ar	L-985B	"4.72E-04, 0.583E-04*"	6.89	40.53	94			initial age disturbed by later metamorphism	"SEPARATED BIOTITE APPEARS VERY FRESH, 95% PURE CONCENTRATE"		
1971	1	343	13	biotite	conventional K-Ar	L-986B	"4.72E-04, 0.583E-04*"	8.18	44.53	94			initial age disturbed by later metamorphism	"BIOTITE IS VERY FRESH IN APPEARANCE, 98% PURE CONCENTRATE"		
1972	1	401	16	hornblende	conventional K-Ar	L-987H	"4.72E-04, 0.583E-04*"	1.2	7.756	81			initial age disturbed by later metamorphism	SEPARATED HORNBLENDE IS BLACK IN APPEARANCE WITH ONLY A TRACE OF IMPURITIES		
1973	1	337	13	biotite	conventional K-Ar	L-988B	"4.72E-04, 0.583E-04*"	8.83	47.04	89				BIOTITE 98% PURE		
1974	1	287	11	biotite	conventional K-Ar	L-989B	"4.72E-04, 0.583E-04*"	7.77	34.78	92			initial age disturbed by later metamorphism	5% CHLORITE AND 5% IMPURITIES IN BIOTITE CONCENTRATE		
1975	1	260	10	biotite	conventional K-Ar	L-990B	"4.72E-04, 0.583E-04*"	7.76	31.27	89			age of later metamorphism	SLIGHTLY ALTERED WITH 5% CHLORITE AND 2% IMPURITIES		
1976	1	280	10	biotite	conventional K-Ar	L-991B	"4.72E-04, 0.583E-04*"	6.53	28.52	88			initial age disturbed by later metamorphism	MODERATELY-ALTERED CONCENTRATE WITH 10% CHLORITE AND 3% QUARTZ-FELDSPAR		
1977	1	327	13	biotite	conventional K-Ar	L-992B	"4.72E-04, 0.583E-04*"	8.72	45.04	92			initial age disturbed by later metamorphism	BIOTITE APPEARS QUITE FRESH		
1978	1	335	13	biotite	conventional K-Ar	L-993B	"4.72E-04, 0.583E-04*"	8.49	45.04	93			initial age disturbed by later metamorphism	SEPARATED BIOTITE HAS ABOUT 3% IMPURITIES INCLUDING MUSCOVITE		
1979	1	447	17	biotite	conventional K-Ar	L-994B	"4.72E-04, 0.583E-04*"	7.52	54.92	97			minimum age of metamorphic crystallization	VERY FRESH BIOTITE	ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
1980	1	353	14	biotite	conventional K-Ar	L-995B	"4.72E-04, 0.583E-04*"	8.33	46.79	87			initial age disturbed by later metamorphism	BIOTITE HAS ABOUT 5% IMPURITIES (QUARTZ)		
1981	1	370	15	biotite	conventional K-Ar	L-996B	"4.72E-04, 0.583E-04"	8.08	53.41	95			initial age disturbed by later metamorphism	BIOTITE CONCENTRATE WITH 1% IMPURITIES	ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
1982	1	407	16	biotite	conventional K-Ar	L-997B	"4.72E-04, 0.583E-04*"	8.65	56.79	84			initial age disturbed by later metamorphism	"BIOTITE APPEARS QUITE FRESH, 99% CONCENTRATE"		
1983	1	342	13	biotite	conventional K-Ar	L-998	"4.72E-04, 0.583E-04*"	8.12	44.03	76			initial age disturbed by later metamorphism	SEPARATED BIOTITE APPEARS MODERATELY ALTERED IN PART		
1984	1	369	14	hornblende	conventional K-Ar	L-1001H	"4.72E-04, 0.583E-04*"	1.02	6.005	64			initial age disturbed by later metamorphism	GREEN HORNBLENDE CONTAINS LESS THAN 1% BIOTITE		
1984	2	336	13	biotite	conventional K-Ar	L-1001B	"4.72E-04, 0.583E-04*"	9	47.79	94			initial age disturbed by later metamorphism	UNALTERED BIOTITE WITH 1% CHLORITE		
1985	1	320	12	biotite	conventional K-Ar	L-1002B	"4.72E-04, 0.583E-04*"	9.23	46.54	92			initial age disturbed by later metamorphism	BIOTITE CONCENTRATE IS 98% PURE		
1986	1	269	11	biotite	conventional K-Ar	L-1003B	"4.72E-04, 0.583E-04*"	7.86	32.78	84			initial age disturbed by later metamorphism	BIOTITE APPEARS VERY FRESH AND UNALTERED		
1987	1	266	10	biotite	conventional K-Ar	L-1004B	"4.72E-04, 0.583E-04*"	8.96	37.03	91			age of later metamorphism			
1988	1	333	13	biotite	conventional K-Ar	L-1005B	"4.72E-04, 0.583E-04*"	6.33	33.28	91			initial age disturbed by later metamorphism	BIOTITE CONCENTRATE CONTAINED 5% CHLORITE AND 1% IMPURITIES		
1989	1	305	12	biotite	conventional K-Ar	L-1006B	"4.72E-04, 0.583E-04*"	9.68	46.29	92			initial age disturbed by later metamorphism	VERY FRESH BIOTITE		
1990	1	266	10	biotite	conventional K-Ar	L-1008B	"4.72E-04, 0.583E-04*"	8.14	33.53	86			age of later metamorphism	"REDDISH BIOTITE, SOME ALTERED GRAINS"		
1991	1	322	13	biotite	conventional K-Ar	L-1009B	"4.72E-04, 0.583E-04*"	6.99	35.53	88			initial age disturbed by later metamorphism	BIOTITE CONCENTRATE WITH 5% CHLORITE AND 2% QUARTZ-FELDSPAR	ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
1992	1	345	14	biotite	conventional K-Ar	L-1010B	"4.72E-04, 0.583E-04*"	8.17	44.78	91			initial age disturbed by later metamorphism	BIOTITE CONCENTRATE PLUS 2% CHLORITE AND 2% IMPURITIES		
1993	1	317	12	biotite	conventional K-Ar	L-1011B	"4.72E-04, 0.583E-04*"	5.87	29.27	73			initial age disturbed by later metamorphism	BIOTITE MODERATELY ALTERED WITH 10% CHLORITE		
1994	1	463	18	biotite	conventional K-Ar	L-1012B	"4.72E-04, 0.583E-04*"	8.82	67.05	96			minimum age of metamorphic crystallization	VERY FRESH BIOTITE WITH ABOUT 3% CHLORITE		
1995	1	374	15	hornblende	conventional K-Ar	1088H	"4.72E-04, 0.583E-04*"	0.329	1.97	51			initial age disturbed by later metamorphism	GREENISH HORNBLENDE SEPARATE		
1996	1	356	14	biotite	conventional K-Ar	L-1089B	"4.72E-04, 0.583E-04*"	8.57	48.54	95			initial age disturbed by later metamorphism	REDDISH BIOTITE CONCENTRATE PLUS 2% CHLORITE AND IMPURITIES		
1997	1	335	13	biotite	conventional K-Ar	L-1090B	"4.72E-04, 0.583E-04*"	5.2	27.52	85			initial age disturbed by later metamorphism	COARSE BIOTITE APPEARS MODERATELY ALTERED	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
1997	2	362	14	muscovite	conventional K-Ar	L-1090M	"4.72E-04, 0.583E-04*"	10.58	61.05	85			minimum age of intrusion			
1998	1	363	14	biotite	conventional K-Ar	L-1092B	"4.72E-04, 0.583E-04*"	8.72	50.54	95			initial age disturbed by later metamorphism	VERY FRESH BIOTITE		
1999	1	373	14	hornblende	conventional K-Ar	L-1096H	"4.72E-04, 0.583E-04*"	1.37	8.18	79			initial age disturbed by later metamorphism			
2000	1	396	15	biotite	conventional K-Ar	L-1096 B	"4.72E-04, 0.583E-04*"	8.01	51.05	95			initial age disturbed by later metamorphism		POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE ANALYSES	
2001	1	345	13	biotite	conventional K-Ar	L-1098B	"4.72E-04, 0.583E-04*"	9.63	52.74	84			initial age disturbed by later metamorphism	BIOTITE CONCENTRATE IS 98% PURE	POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE ANALYSES	
2002	1	404	16	hornblende	conventional K-Ar	L-1099H	"4.72E-04, 0.583E-04*"	0.58	3.78	79			initial age disturbed by later metamorphism	PURE HORNBLENDE SEPARATE		
2003	1	368	14	biotite	conventional K-Ar	L-1100B	"4.72E-04, 0.583E-04*"	7.96	46.79	94			initial age disturbed by later metamorphism	"NEARLY PURE BIOTITE SEPARATE, TRACE OF MUSCOVITE"	 E-10/YR	
2004	1	361	14	biotite	conventional K-Ar	L-1101B	"4.72E-04, 0.583E-04*"	7.92	45.54	94			initial age disturbed by later metamorphism	UNALTERED BIOTITE CONCENTRATE WITH 2% AMPHIBOLE		
2005	1	377	15	muscovite	conventional K-Ar	L-1101	"4.72E-04, 0.583E-04*"	9.12	55.04	84			minimum age of intrusion	MUSCOVITE CONCENTRATE CONTAINS 1% BIOTITE		
2006	1	404	16	hornblende	conventional K-Ar	L-1102H	"4.72E-04, 0.583E-04*"	0.45	2.93	64			initial age disturbed by later metamorphism			
2007	1	355	13	biotite	conventional K-Ar	L-1103B	"4.72E-04, 0.583E-04*"	7.3	41.28	93			initial age disturbed by later metamorphism	BIOTITE APPEARS MODERATELY ALTERED; 3% IMPURITIES (MOSTLY CHLORITE)	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
2008	1	430	17	biotite	conventional K-Ar	L-1104B	"4.72E-04, 0.583E-04"	7.01	57.96	76			minimum age of metamorphic crystallization		POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE ANALYSES	
2009	1	406	16	hornblende	conventional K-Ar	L-1104H	"4.72E-04, 0.583E-04*"	0.27	1.77	68			initial age disturbed by later metamorphism	PURE HORNBLENDE SEPARATE	POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE ANALYSES	
2010	1	347	13	biotite	conventional K-Ar	L-1105B	"4.72E-04, 0.583E-04*"	9.08	50.04	91			initial age disturbed by later metamorphism	"BIOTITE SEPARATE ABOUT 98% PURE, REST MUSCOVITE AND IMPURITIES"		
2011	1	369	14	biotite	conventional K-Ar	L-1106B	"4.72E-04, 0.583E-04*"	8.88	52.29	94			initial age disturbed by later metamorphism	ABOUT 1% CHLORITE WITH AGGREGATE IN BIOTITE CONCENTRATE		
2012	1	399	16	biotite	conventional K-Ar	L-1107B	"4.72E-04, 0.583E-04*"	7.93	51.04	96			initial age disturbed by later metamorphism	PURE BIOTITE		
2013	1	322	13	biotite	conventional K-Ar	L-1108B	"4.72E-04, 0.583E-04*"	9.31	47.29	76			initial age disturbed by later metamorphism			
2014	1	351	13	biotite	conventional K-Ar	L-1109B	"4.72E-04, 0.583E-04*"	7.41	41.28	94			initial age disturbed by later metamorphism	MODERATELY-ALTERED BIOTITE; CONCENTRATE CONTAINS 5% CHLORITE AND IMPURITIES		
2015	1	453	18	hornblende	conventional K-Ar	L-1110H	"4.72E-04, 0.583E-04*"	3.91	29.02	95			initial age disturbed by later metamorphism	ABOUT 2% BIOTITE IN HORNBLENDE CONCENTRATE	POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE ANALYSES	WHOLE-ROCK RB-SR GIVES 570+/-15 M.Y.
2029	1	160.93	3	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.85	16.6	86			age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE DETERMINATIONS	
2030	1	175.09	3	biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.54	19.96	95			age of intrusion			
2031	1	186.98	4	biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.19	23.23	92			age of intrusion			
2032	1	171.36	3	biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.18	21.17	95			age of intrusion			
2033	1	173.8	3	biotite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	7.18	18.86	91			minimum age of intrusion			
2034	1	184.51	4	biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	21.9	95			age of intrusion			
2035	1	117	2	biotite	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	14.41	86			age of intrusion			
2036	1	161.28	3	biotite	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.09	19.65	93			age of intrusion			
2037	1	151.44	3	biotite	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	7.8	17.74	86			age of intrusion			
2038	1	115.18	2	biotite	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.69	14.88	90			age of intrusion			
2039	1	120.21	2	biotite	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	8.08	14.46	91			age of intrusion		ARGON VALUE IS AVERAGE OF TWO ANALYSES	
2040	1	112.47	2	biotite	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	8.14	13.6	76			age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE ANALYSES	
2041	1	115.48	2	biotite	conventional K-Ar	13	"4.72E-04, 0.585E-04, 1.19E-04*"	7.7	13.22	95			age of intrusion			
2042	1	123.09	2	biotite	conventional K-Ar	14	"4.72E-04, 0.585E-04, 1.19E-04*"	6.93	12.71	94			age of intrusion			
2043	1	219.8	4	biotite	conventional K-Ar	15	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	26.35	94			age of intrusion			
2097	1	113.86	2	biotite	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	7.21	12.2	46			age of intrusion	BIOTITE SLIGHTLY CHLORITIZED	POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
2098	1	155.65	3	glass	conventional K-Ar	2A	"4.72E-04, 0.584E-04, 1.19E-04*"	2.38	5.57	90			minimum age of intrusion	GLASSY GROUNDMASS (MATRIX)	POTASSIUM VALUE IS AVERAGE OF 3 ANALYSES	
2098	2	173	2	hornblende	conventional K-Ar	2B	"4.72E-04, 0.584E-04, 1.19E-04*"	1.3	3.39	64			age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES OF REPLICATE ANALYSES	
2099	1	201.03	4	biotite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	8.59	26.3	79			age of intrusion		POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
2100	1	203.43	4	biotite	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	8.87	27.5	87			age of intrusion		POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
2101	1	102.44	2	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	8.83	13.4	92			age of intrusion		POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
2102	1	98.83	2	biotite	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	8	11.7	87			age of intrusion		POTASSIUM VALUE IS AVERAGE OF REPLICATE ANALYSES	
2115	1	236.69	5	biotite	conventional K-Ar	YAG-4	"4.72E-04, 0.584E-04, 1.19E-04*"	7.36	26.8	91			age of later metamorphism			
2133	1	259.43	13	whole rock	conventional K-Ar	R-3917	"4.72E-04, 0.584E-04, 1.19E-04*"	4.71	18.92	94			minimum age of metamorphic crystallization			
2134	1	236.33	12	whole rock	conventional K-Ar	R-3920	"4.72E-04, 0.584E-04, 1.19E-04*"	3.4	12.36	87			minimum age of metamorphic crystallization			
2135	1	270.29	13	whole rock	conventional K-Ar	R3818	"4.72E-04, 0.584E-04, 1.19E-04*"	4.85	20.36	98			age of metamorphic crystallization			
2135	2	267.2	13	whole rock	conventional K-Ar	R-3818	"4.72E-04, 0.584E-04, 1.19E-04*"	4.85	20.11	98			age of metamorphic crystallization			
2136	1	281.7	15	biotite	conventional K-Ar	B-3817	"4.72E-04, 0.584E-04, 1.19E-04*"	3.98	17.47	92			age not evaluated	IMPURE CONCENTRATE		
2136	2	253.2	12	biotite	conventional K-Ar	B-3817A	"4.72E-04, 0.584E-04, 1.19E-04*"	7.75	30.33	91			age of metamorphic crystallization	UPGRADED CONCENTRATE		
2137	1	242.72	11	biotite	conventional K-Ar	B-3815	"4.72E-04, 0.584E-04, 1.19E-04*"	8.55	31.98	97			minimum age of metamorphic crystallization			
2138	1	234.8	11	biotite	conventional K-Ar	B-3816	"4.72E-04, 0.584E-04, 1.19E-04*"	8.34	30.11	88			minimum age of intrusion			
2139	1	245.7	12	biotite	conventional K-Ar	B-3814	"4.72E-04, 0.584E-04, 1.19E-04*"	7.6	28.8	93			minimum age of intrusion			
2140	1	287.83	15	whole rock	conventional K-Ar	R-3821	"4.72E-04, 0.584E-04, 1.19E-04*"	4.16	18.69	95			age of later metamorphism			
2141	1	248.87	13	biotite	conventional K-Ar	B-3012	"4.72E-04, 0.584E-04, 1.19E-04*"	7.08	27.2	100			age of later metamorphism			
2142	1	253.29	13	biotite	conventional K-Ar	B-3013	"4.72E-04, 0.584E-04, 1.19E-04*"	8.71	34.1	96			age of later metamorphism			
2143	1	180.22	8	biotite	conventional K-Ar	B-3126B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.07	22.02	94			age of intrusion			
2190	1	365.69	17	biotite	conventional K-Ar	B-3609	"4.72E-04, 0.585E-04, 1.19E-04*"	6.66	38.87	84			age of intrusion			
2190	2	377.15	17	biotite	conventional K-Ar	B-3609	"4.72E-04, 0.585E-04, 1.19E-04*"	6.66	40.22	94			age of intrusion			
2190	3	368.58	15	biotite	conventional K-Ar	B-3609	"4.72E-04, 0.585E-04, 1.19E-04*"	6.66	39.21	100			age of intrusion			
2191	1	358.63	10	biotite	conventional K-Ar	ME-10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	48.21	96			age of intrusion			
2192	1	382.99	10	whole rock	conventional K-Ar	R-3883	"4.72E-04, 0.585E-04, 1.19E-04*"	3.43	21.07	100			age of metamorphic crystallization			
2193	1	384.62	18	whole rock	conventional K-Ar	R-3447	"4.72E-04, 0.585E-04, 1.19E-04*"	3.2	19.75	97			age of metamorphic crystallization			
2194	1	375.52	15	whole rock	conventional K-Ar	R-3444	"4.72E-04, 0.585E-04, 1.19E-04*"	3.94	23.68	98			age of metamorphic crystallization			
2195	1	355.18	15	whole rock	conventional K-Ar	R-3448	"4.72E-04, 0.585E-04, 1.19E-04*"	3.1	17.52	88			minimum age of metamorphic crystallization			
2196	1	362.39	15	biotite	conventional K-Ar	B-3593	"4.72E-04, 0.585E-04, 1.19E-04*"	4.51	26.06	97			initial age disturbed by later metamorphism			
2197	1	373.06	10	biotite	conventional K-Ar	ME-9	"4.72E-04, 0.585E-04, 1.19E-04*"	5.38	32.1	83			initial age disturbed by later metamorphism			
2197	2	372.84	10	biotite	conventional K-Ar	ME-9	"4.72E-04, 0.585E-04, 1.19E-04*"	4.83	28.8	68			initial age disturbed by later metamorphism			
2198	1	323		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of uplift and cooling		NO ANALYTICAL DATA GIVEN	
2198	2	386		hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given								NO ANALYTICAL DATA GIVEN	APPROXIMATE AGE OF A THERMAL AND METASOMATIC EVENT WHICH RESET K-AR MINERAL AGES
2199	1	359		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of uplift and cooling		NO ANALYTICAL DATA GIVEN	
2199	2	380		hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given								NO ANALYTICAL DATA GIVEN	APPROXIMATE AGE OF A THERMAL AND METASOMATIC EVENT WHICH RESET K-AR MINERAL AGES
2200	1	346		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of uplift and cooling		NO ANALYTICAL DATA GIVEN	
2200	2	342		hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of uplift and cooling		NO ANALYTICAL DATA GIVEN	
2201	1	314		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of uplift and cooling		NO ANALYTICAL DATA GIVEN	
2201	2	336		hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of uplift and cooling		NO ANALYTICAL DATA GIVEN	
2202	1	342		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of uplift and cooling		NO ANALYTICAL DATA GIVEN	
2202	2	399		hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given								NO ANALYTICAL DATA GIVEN	APPROXIMATE AGE OF A THERMAL AND METASOMATIC EVENT WHICH RESET K-AR MINERAL AGES
2214	1	322.4		biotite	conventional K-Ar	YAG 14	"4.72E-04, 0.584E-04, 1.19E-04*"	6.69	34	94			initial age disturbed by later metamorphism			
2215	1	345.37		biotite	conventional K-Ar	YAG 15	"4.72E-04, 0.584E-04, 1.19E-04*"	8.77	48.06	97			initial age disturbed by later metamorphism	2% CHLORITE		
2216	1	346.06		muscovite	conventional K-Ar	YAG 17	"4.72E-04, 0.584E-04, 1.19E-04*"	8.23	45.2	96			minimum age of metamorphic crystallization			
2221	1	352.09		whole rock	conventional K-Ar	B-2	"4.72E-04, 0.584E-04, 1.19E-04*"	4.05	22.67	93			initial age disturbed by later metamorphism			
2223	1	231.82		whole rock	conventional K-Ar	B-5	"4.72E-04, 0.584E-04, 1.19E-04*"	0.57	2.03	53			initial age disturbed by later metamorphism			
2224	1	263.88		whole rock	conventional K-Ar	B-6	"4.72E-04, 0.584E-04, 1.19E-04*"	0.11	0.45	25			initial age disturbed by later metamorphism			
2227	1	262.49		biotite	conventional K-Ar	B-9	"4.72E-04, 0.584E-04, 1.19E-04*"	7.37	29.98	91			initial age disturbed by later metamorphism	5% CHLORITE		
2228	1	271		biotite	conventional K-Ar	B-10	"4.72E-04, 0.584E-04, 1.19E-04*"	8.15	34.31	91			initial age disturbed by later metamorphism	2% CHLORITE		
2230	1	326.38		biotite	conventional K-Ar	B-12	"4.72E-04, 0.584E-04, 1.19E-04*"	8.62	44.4	93			initial age disturbed by later metamorphism	BIOTITE-MUSCOVITE MIXTURE		
2231	1	328.08		muscovite	conventional K-Ar	B-13	"4.72E-04, 0.584E-04, 1.19E-04*"	10.38	53.77	94			initial age disturbed by later metamorphism	MUSCOVITE-BIOTITE MIXTURE		
2319	1	770.55	50	whole rock	conventional K-Ar	US-12	"4.72E-04, 0.585E-04, 1.19E-04*"	0.112	1.55	29			age meaning uncertain (geologic factors)		REPLICATE K AND AR ANALYSES	AGE TOO YOUNG
2320	1	1201.56	40	whole rock	conventional K-Ar	68-2	"4.72E-04, 0.585E-04, 1.19E-04*"	1.92	47.2	98			minimum age of metamorphic crystallization		REPLICATE K AND AR ANALYSES	
2339	1	1466.46	50	hornblende	conventional K-Ar	D1268	"4.72E-04, 0.584E-04, 1.19E-04*"	0.442	14.4	97			initial age disturbed by later metamorphism			
2340	1	1366.13	50	hornblende	conventional K-Ar	D1276	"4.72E-04, 0.584E-04, 1.19E-04*"	0.476	14	96			initial age disturbed by later metamorphism			
2341	1	28.87	0.6	biotite	conventional K-Ar	735	"4.72E-04, 0.584E-04, 1.19E-04*"	7.47	3.13	78			age of volcanism		DUPLICATE K ANALYSES	
2342	1	27.3	0.5	biotite	conventional K-Ar	737	"4.72E-04, 0.584E-04, 1.19E-04*"	7.98	3.16	68			age of volcanism		DUPLICATE K ANALYSES	
2343	1	27.24	0.5	biotite	conventional K-Ar	736	"4.72E-04, 0.584E-04, 1.19E-04*"	4.96	1.96	64			age of volcanism	6% CHLORITE	DUPLICATE K ANALYSES	
2344	1	50.55	1.6	chlorite group	conventional K-Ar	738	"4.72E-04, 0.584E-04, 1.19E-04*"	1.13	0.834	31			minimum age of intrusion	ALTERED MAFIC MATERIAL; CHLORITE + CLAY	DUPLICATE K ANALYSES	
2344	2	23.82	0.5	plagioclase	conventional K-Ar	738R	"4.72E-04, 0.584E-04, 1.19E-04*"	2.61	0.901	66					DUPLICATE K ANALYSES	AGE TOO YOUNG
2345	1	26.14	0.7	whole rock	conventional K-Ar	739	"4.72E-04, 0.584E-04, 1.19E-04*"	2.06	0.781	39			minimum age of volcanism		DUPLICATE K ANALYSES	
2346	1	15.28	0.3	whole rock	conventional K-Ar	741	"4.72E-04, 0.584E-04, 1.19E-04*"	5.66	1.25	48			minimum age of volcanism		DUPLICATE K ANALYSES	
2347	1	183.83	4	pyroxenes	conventional K-Ar	744	"4.72E-04, 0.584E-04, 1.19E-04*"	0.664	1.85	64				25% CHLORITE AND 10% WHOLE-ROCK	DUPLICATE K AND AR ANALYSES	AGE TOO OLD
2347	2	62.9	1.2	plagioclase	conventional K-Ar	744R	"4.72E-04, 0.584E-04, 1.19E-04*"	2.93	2.7	56			minimum age of intrusion	WHOLE-ROCK LESS HEAVY FRACTION	DUPLICATE K ANALYSES	
2348	1	489.72	10	hornblende	conventional K-Ar	745	"4.72E-04, 0.584E-04, 1.19E-04*"	0.958	7.76	91				5% CHLORITE AND 3% WHOLE-ROCK	DUPLICATE K AND AR ANALYSES	AGE TOO OLD
2348	2	85.6	1.7	plagioclase	conventional K-Ar	745R	"4.72E-04, 0.584E-04, 1.19E-04*"	1.87	2.36	47				WHOLE ROCK LESS HEAVY FRACTION	DUPLICATE K AND AR ANALYSES	AGE APPEARS TOO OLD
2349	1	87.67		augite-ferroaugite	conventional K-Ar	743P	"4.72E-04, 0.584E-04, 1.19E-04*"	0.576	0.745	46				5% HORNBLENDE AND 6% WHOLE-ROCK	REPLICATE K AND AR ANALYSES	AGE TOO OLD
2349	2	66.62	1.3	biotite	conventional K-Ar	743	"4.72E-04, 0.584E-04, 1.19E-04*"	8.28	8.09	79			age of intrusion	4% CHLORITE AND 6% HORNBLENDE	DUPLICATE K AND AR ANALYSES	
2350	1	40.64	0.8	whole rock	conventional K-Ar	730	"4.72E-04, 0.584E-04, 1.19E-04*"	2.89	1.71	13					DUPLICATE K ANALYSES	AGE IS PROBABLY TOO OLD
2351	1	31.34	0.6	pyroxenes	conventional K-Ar	746	"4.72E-04, 0.584E-04, 1.19E-04*"	1.54	0.701	49			age of intrusion	1% BIOTITE	DUPLICATE K ANALYSES	
2352	1	69.25	1.4	hornblende	conventional K-Ar	748	"4.72E-04, 0.584E-04, 1.19E-04*"	1.84	1.87	69			age of intrusion	4% WHOLE-ROCK	DUPLICATE K ANALYSES	
2352	2	69.76	1.4	plagioclase	conventional K-Ar	748R	"4.72E-04, 0.584E-04, 1.19E-04*"	3.34	3.42	56			age of intrusion	WHOLE ROCK LESS HEAVY FRACTION	DUPLICATE K ANALYSES	
2353	1	34.7		biotite	conventional K-Ar	733	"4.72E-04, 0.584E-04, 1.19E-04*"	3.37	1.7	60			age of intrusion	25% CHLORITE AND 20% WHOLE-ROCK	DUPLICATE K ANALYSES	
2354	1	24.05	0.5	hornblende	conventional K-Ar	749A	"4.72E-04, 0.584E-04, 1.19E-04*"	1.42	0.495	43			age of intrusion	PYROXENE+HORNBLENDE WITH 5% WHOLE-ROCK	REPLICATE K ANALYSES	
2355	1	27.94	1.1	chlorite group	conventional K-Ar	750	"4.72E-04, 0.584E-04, 1.19E-04*"	0.634	0.257	26			minimum age of intrusion	ALTERED MAFIC MATERIAL	DUPLICATE K ANALYSES	
2355	2	28.96	0.8	plagioclase	conventional K-Ar	750R	"4.72E-04, 0.584E-04, 1.19E-04*"	2.26	0.95	37			minimum age of intrusion	WHOLE ROCK LESS HEAVY FRACTION	DUPLICATE K ANALYSES	
2356	1	44.72	0.9	hornblende	conventional K-Ar	751	"4.72E-04, 0.584E-04, 1.19E-04*"	1.58	1.03	77			age of intrusion	17% WHOLE-ROCK	DUPLICATE K ANALYSES	
2356	2	49.52	0.9	plagioclase	conventional K-Ar	751R	"4.72E-04, 0.584E-04, 1.19E-04*"	2.02	1.46	54			age of intrusion	WHOLE ROCK LESS HEAVY FRACTION	REPLICATE K AND AR ANALYSES	
2357	1	12.58	0.3	sanidine	conventional K-Ar	USGS(M)8I-142	"4.72E-04, 0.585E-04, 1.19E-04*"	6.16	1.12	92			minimum age of volcanism			
2358	1	15.1	0.4	sanidine	conventional K-Ar	USGS(M)6I-122	"4.72E-04, 0.585E-04, 1.19E-04"	6.52		72			age of volcanism			
2359	1	18.69	0.5	biotite	conventional K-Ar	USGS(M)8I-143	"4.72E-04, 0.585E-04, 1.19E-04*"	8.76	2.37	73			minimum age of volcanism			
2360	1	20.81	0.5	biotite	conventional K-Ar	USGS(M)6I-124	"4.72E-04, 0.585E-04, 1.19E-04*"	8.63	2.6	78			age of volcanism			
2361	1	20.06	0.5	sanidine	conventional K-Ar	USGS(M)6I-123	"4.72E-04, 0.585E-04, 1.19E-04*"	10.81	3.14	91			age of volcanism			
2362	1	20.35	0.5	biotite	conventional K-Ar	USGS(M)8I-150	"4.72E-04, 0.585E-04, 1.19E-04*"	6.04	1.78	44			age of volcanism			
2363	1	26.13	0.6	sanidine	conventional K-Ar	USGS(M)6I-125	"4.72E-04, 0.585E-04, 1.19E-04*"	4.75	1.8	82			age of volcanism			
2364	1	145.58	3	biotite	conventional K-Ar	YU-ACME 30	"4.72E-04, 0.584E-04, 1.19E-04*"	6.4	13.97	93			minimum age of volcanism		DUPLICATE K ANALYSES	
2365	1	163.78	3	hornblende	conventional K-Ar	YU-379	"4.72E-04, 0.584E-04, 1.19E-04*"	0.474	1.17	61			age of intrusion	30% BINARY HORNBLENDE-PYROXENE GRAINS	DUPLICATE K AND AR ANALYSES	
2365	2	149.23	3	biotite	conventional K-Ar	YU-379	"4.72E-04, 0.584E-04, 1.19E-04*"	7.38	16.53	90			age meaning uncertain (geologic factors)		DUPLICATE K AND AR ANALYSES	
2366	1	118.01	3	plagioclase	conventional K-Ar	YU-SW312	"4.72E-04, 0.584E-04, 1.19E-04*"	0.516	0.906	37			age meaning uncertain (geologic factors)		DUPLICATE K ANALYSES	
2367	1	142.3	2	biotite	conventional K-Ar	YU-ROCK HILL SYENITE	"4.72E-04, 0.584E-04, 1.19E-04*"	6.38	13.6	94			age of intrusion		REPLICATE K AND AR ANALYSES	MINIMUM AGE FOR THRUST EMPLACEMENT OF KLIPPE
2368	1	75.41	1	whole rock	conventional K-Ar	YU-ROCK HILL BASALT	"4.72E-04, 0.584E-04, 1.19E-04*"	6.72	7.45	84			age meaning uncertain (geologic factors)		REPLICATE K AND AR ANALYSES	
2369	1	8.82	0.17	K feldspar	conventional K-Ar	YU-1A-AY	"4.72E-04, 0.584E-04, 1.19E-04*"	8.88	1.13	74			age of volcanism		DUPLICATE K ANALYSES	
2370	1	8.43	0.16	K feldspar	conventional K-Ar	YU-1-AY	"4.72E-04, 0.584E-04, 1.19E-04*"	9.04	1.1	66			age of volcanism		DUPLICATE K ANALYSES	
2371	1	13.47	0.3	K feldspar	conventional K-Ar	YU-3-AY	"4.72E-04, 0.584E-04, 1.19E-04*"	8.22	1.6	47			age of volcanism		DUPLICATE K ANALYSES	
2372	1	20.34	4	K feldspar	conventional K-Ar	YU-2-AY	"4.72E-04, 0.584E-04, 1.19E-04*"	4.21	1.24	5			age meaning uncertain (analysis questionable)		DUPLICATE ANALYSES	
2373	1	16.67	2	whole rock	conventional K-Ar	YU-4-AY	"4.72E-04, 0.584E-04, 1.19E-04*"	1.265	0.305	8			age of volcanism		DUPLICATE ANALYSES	
2374	1	27.03	0.4	biotite	conventional K-Ar	YU-NR-LH	"4.72E-04, 0.584E-04, 1.19E-04*"	5.51	2.16	61			age of volcanism		DUPLICATE ANALYSES	GEOLOGY DISCUSSED BY BEST AND OTHERS (1973)
2375	1	34.73	0.5	biotite	conventional K-Ar	YU-CP-LH	"4.72E-04, 0.584E-04, 1.19E-04*"	7.19	3.63	59			age of volcanism		DUPLICATE ANALYSES	
2375	2	39.96	1	plagioclase	conventional K-Ar	YU-CP-LH	"4.72E-04, 0.584E-04, 1.19E-04*"	0.6	0.349	23			age not evaluated		REPLICATE ANALYSES	
2376	1	9.9	0.3	whole rock	conventional K-Ar	YU-179-PW	"4.72E-04, 0.584E-04, 1.19E-04*"	0.796	0.114	18			age of volcanism		DUPLICATE ANALYSES	
2377	1	2.23	0.3	whole rock	conventional K-Ar	YU-MP-1	"4.72E-04, 0.584E-04, 1.19E-04*"	0.41	0.0132	6			age of volcanism		DUPLICATE K ANALYSES	"MINIMUM AGE FOR ORTIZ SURFACE, MESA PRIETA"
2378	1	2.57	0.2	whole rock	conventional K-Ar	YU-JCD-1	"4.72E-04, 0.584E-04, 1.19E-04*"	0.811	0.03	11			age of volcanism		DUPLICATE K ANALYSES	MINIMUM AGE FOR ORTIZ SURFACE
2379	1	43.39	1	whole rock	conventional K-Ar	YU-YAG222	"4.72E-04, 0.584E-04, 1.19E-04*"	4.16	2.63	52			minimum age of volcanism		DUPLICATE K ANALYSES	
2380	1	67.34	2	biotite	conventional K-Ar	YU-YAG 788	"4.72E-04, 0.584E-04, 1.19E-04*"	8.18	8.08	78			minimum age of intrusion		DUPLICATE K ANALYSES	
2381	1	1390.4	40	biotite	conventional K-Ar	YU-31	"4.72E-04, 0.584E-04, 1.19E-04*"	8.64	260.6	96			age of intrusion		DUPLICATE K ANALYSES	ARMSTRONG (1964) REPORTED A K-AR AGE OF 1375 M.Y. FOR THIS BIOTITE
2382	1	26.69	0.8	muscovite	conventional K-Ar	YU-237	"4.72E-04, 0.584E-04, 1.19E-04*"	4.21	1.63	61			age not evaluated	PLUS QUARTZ	DUPLICATE K ANALYSES	
2383	1	236.73	6	hornblende	conventional K-Ar	YU-192A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.229	0.834	48				MINOR QUARTZ AND CHLORITE	REPLICATE K ANALYSES	AGE APPEARS TOO OLD
2384	1	37.28	1.1	biotite	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	9.09	4.93	76			age of intrusion			
2385	1	39.5	1.1	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	8.68	4.99	80			age of intrusion			
2386	1	37.85	1.1	biotite	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	8.97	4.94	80			age of intrusion			
2387	1	38	1.1	biotite	conventional K-Ar	7	"4.72E-04, 0.584E-04, 1.19E-04*"	8.44	2.41	89			age of intrusion		(*)	
2388	1	31.46	0.9	biotite	conventional K-Ar	9	"4.72E-04, 0.584E-04, 1.19E-04*"	8.34	3.81	67			age of volcanism			
2389	1	31.95	0.9	biotite	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.19E-04*"	8.06	3.74	58			age of volcanism			
2390	1	32.4	0.9	biotite	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	8.69	4.09	79			age of intrusion			
2391	1	25.47	0.8	biotite	conventional K-Ar	LSH-1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.96	2.57	73			minimum age of intrusion			
2391	2	26.05	0.8	biotite	conventional K-Ar	LSH-1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.96	2.629	87			minimum age of intrusion			
2392	1	31.87	0.9	hornblende	conventional K-Ar	63-MC-64	"4.72E-04, 0.585E-04, 1.19E-04*"	0.961	0.4448	62			age of intrusion			
2393	1	29.11	1.4	biotite	conventional K-Ar	63 MC 63	"4.72E-04, 0.585E-04, 1.19E-04*"	9.01	3.807	54			age of intrusion			
2394	1	26.13	0.8	muscovite	conventional K-Ar	64 MC 20	"4.72E-04, 0.585E-04, 1.19E-04*"	10.24	3.88	78			minimum age of intrusion			
2396	1	32.92	1	biotite	conventional K-Ar	64 MC 5	"4.72E-04, 0.585E-04, 1.19E-04*"	9.15	4.376	47			age of intrusion			
2396	2	34.34	1	hornblende	conventional K-Ar	64MC5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.531	0.265	53			age of intrusion			
2397	1	33.43	1	biotite	conventional K-Ar	58 FC 53	"4.72E-04, 0.585E-04, 1.19E-04*"	8.54	4.149	70			age of intrusion			
2397	2	31.92	1.5	hornblende	conventional K-Ar	58 FC 53	"4.72E-04, 0.585E-04, 1.19E-04*"	0.55	0.255	27			age of intrusion			
2398	1	33.24	1	biotite	conventional K-Ar	64 MC 4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.59	4.149	88			age of intrusion			
2398	2	36.02	1.1	hornblende	conventional K-Ar	64 MC 4	"4.72E-04, 0.585E-04, 1.19E-04*"	0.487	0.2551	47			age of intrusion			
2399	1	37.5	1.5	biotite	conventional K-Ar	LSH-3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.13	4.435	90			age of intrusion			
2400	1	37.66	1.1	biotite	conventional K-Ar	LSH-4A	"4.72E-04, 0.585E-04, 1.19E-04*"	5.01	2.745	73			age of intrusion			
2401	1	35.92	1.1	biotite	conventional K-Ar	63 MC 47	"4.72E-04, 0.585E-04, 1.19E-04*"	7.81	4.079	85			age of volcanism			
2402	1	33.43	1	biotite	conventional K-Ar	62 MC 12	"4.72E-04, 0.585E-04, 1.19E-04*"	7.92	3.847	86			age of volcanism			
2403	1	34.86	1	biotite	conventional K-Ar	62MC15	"4.72E-04, 0.585E-04, 1.19E-04*"	7.48	3.791	77			age of volcanism			
2404	1	38.32	1.1	biotite	conventional K-Ar	63MC66	"4.72E-04, 0.585E-04, 1.19E-04*"	5.85	3.262	89			age of volcanism			
2405	1	36.72	0.23	biotite	conventional K-Ar	26	"4.72E-04, 0.585E-04, 1.19E-04*"	10.08	5.384	74				HYDROTHERMAL; BRONZE-COLORED	DUPLICATE ANALYSES	AGE OF MINERALIZATION
2406	1	36.6	0.3	biotite	conventional K-Ar	20B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	4.695	73				HYDROTHERMAL; BRONZE-COLORED	DUPLICATE K2O ANALYSES	AGE OF MINERALIZATION
2407	1	169.9	8	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	4.77	12.235				minimum age of volcanism	3% CLAY		
2408	1	166.16	8	biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	21.5				minimum age of volcanism	5% IMPURITIES		
2409	1	154.61	8	biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	7.96	18.5					15% CLAY		AGE TOO YOUNG
2411	1	157.82	8	biotite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	7.37	17.5					5% IMPURITIES		AGE TOO YOUNG
2412	1	142.04	7	biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	5.17	11					20% IMPURITIES		AGE TOO YOUNG
2440	1	2528.01	125	whole rock	conventional K-Ar	KA-147	"4.76E-04, 0.589E-04, 1.18E-04*"	2.73	217				age of metamorphic crystallization			
2441	1	2522.04	125	sericite	conventional K-Ar	KA-97	"4.76E-04, 0.589E-04, 1.18E-04*"	6.04	478				age of metamorphic crystallization	"SAMPLE SHOWS QUARTZ, SERICITE, AND CHLORITE (X-RAY)"		
2442	1	1588.1	80	sericite	conventional K-Ar	KA-18	"4.76E-04, 0.589E-04, 1.18E-04*"	9.41	345				age meaning uncertain (geologic factors)		DUPLICATE ARGON ANALYSES	THIS AGE MAY DATE LATER FAULTING AND MINERALIZATION
2443	1	2621.66	130	whole rock	conventional K-Ar	KA-200	"4.76E-04, 0.589E-04, 1.18E-04*"	2.82	240				age of metamorphic crystallization			
2444	1	2460.33	125	whole rock	conventional K-Ar	KA-228	"4.76E-04, 0.589E-04, 1.18E-04*"	0.91	68.8				age of metamorphic crystallization			
2445	1	2170.44	110	whole rock	conventional K-Ar	KA-244	"4.76E-04, 0.589E-04, 1.18E-04*"	2.28	138				age meaning uncertain (geologic factors)			
2446	1	1945.53	85	whole rock	conventional K-Ar	KA-243	"4.76E-04, 0.589E-04, 1.18E-04*"	2.58	130				age meaning uncertain (geologic factors)			
2447	1	780.05	40	whole rock	conventional K-Ar	KA-242	"4.76E-04, 0.589E-04, 1.18E-04*"	2.42	34				age meaning uncertain (geologic factors)			
2448	1	1925.22	95	whole rock	conventional K-Ar	KA-240	"4.76E-04, 0.589E-04, 1.18E-04*"	2.14	106				age meaning uncertain (geologic factors)		DUPLICATE ARGON ANALYSES	
2449	1	1179.08	60	biotite	conventional K-Ar	KA-106B	"4.76E-04, 0.589E-04, 1.18E-04*"	8.39	201				initial age disturbed by later metamorphism			
2449	2	1567.99		K feldspar	conventional K-Ar	KA-106F	"4.76E-04, 0.589E-04, 1.18E-04*"	8.98	323						NO AGE CALCULATED	
2450	1	1672.7	85	biotite	conventional K-Ar	KA-323	"4.76E-04, 0.589E-04, 1.18E-04*"	7.89	313				initial age disturbed by later metamorphism			
2451	1	2334.79	115	biotite	conventional K-Ar	KA-229	"4.76E-04, 0.589E-04, 1.18E-04*"	2.37	163				initial age disturbed by later metamorphism			
2452	1	2424.1	120	sericite	conventional K-Ar	KA-328S	"4.76E-04, 0.589E-04, 1.18E-04*"	5.3	390			Hanson and others (1971)	age of intrusion			
2453	1	2607.62	130	biotite	conventional K-Ar	KA-47	"4.76E-04, 0.589E-04, 1.18E-04*"	4.57	385				age of intrusion			
2454	1	2584.28	130	biotite	conventional K-Ar	KA-46	"4.76E-04, 0.589E-04, 1.18E-04*"	3.96	328				age of intrusion		DUPLICATE ARGON ANALYSES	
2455	1	2556.66	130	biotite	conventional K-Ar	KA-239	"4.76E-04, 0.589E-04, 1.18E-04*"	9.19	746			Peterman and others (1972)	age of intrusion			
2456	1	2480.42	125	biotite	conventional K-Ar	KA-249	"4.76E-04, 0.589E-04, 1.18E-04*"	9.33	716			Peterman and others (1972)	age of metamorphic crystallization			
2457	1	2494.01	125	biotite	conventional K-Ar	KA-250	"4.76E-04, 0.589E-04, 1.18E-04*"	8.14	631				age of metamorphic crystallization			
2458	1	2494.62	125	biotite	conventional K-Ar	KA-94	"4.76E-04, 0.589E-04, 1.18E-04*"	7.93	615				age of intrusion		REPLICATE ARGON ANALYSES	
2459	1	2384.26	120	biotite	conventional K-Ar	KA-4	"4.76E-04, 0.589E-04, 1.18E-04*"	7.73	552				age of intrusion		REPLICATE ARGON ANALYSES	
2459	2	2113.73		K feldspar		KA-4	"4.76E-04, 0.589E-04, 1.18E-04*"	12.74	737						"NO AGE CALCULATED, REPLICATE ARGON ANALYSES"	
2460	1	2487.76	125	biotite	conventional K-Ar	KA-83	"4.76E-04, 0.589E-04, 1.18E-04*"	6.48	500				age of metamorphic crystallization			
2461	1	2387.95	120	biotite	conventional K-Ar	KA-82B	"4.76E-04, 0.589E-04, 1.18E-04*"	7.89	565				minimum age of metamorphic crystallization			
2461	2	1833.19		K feldspar		KA-82	"4.76E-04, 0.589E-04, 1.18E-04*"	13.5	618						NO AGE CALCULATED	
2462	1	2379.18	120	biotite	conventional K-Ar	KA-307	"4.76E-04, 0.589E-04, 1.18E-04*"	8.8	626			Peterman and others (1972)	initial age disturbed by later metamorphism			
2463	1	2470.3	125	muscovite	conventional K-Ar	KA-17	"4.76E-04, 0.589E-04, 1.18E-04*"	10.28	783			Peterman and others (1972)	age of intrusion			
2464	1	2472.81	125	biotite	conventional K-Ar	KA-88	"4.76E-04, 0.589E-04, 1.18E-04*"	8.4	641			Peterman and others (1972)	age of intrusion			
2465	1	2495.52	125	biotite	conventional K-Ar	KA-236	"4.76E-04, 0.589E-04, 1.18E-04*"	6.43	499			Peterman and others (1972)	age of intrusion		DUPLICATE ARGON ANALYSES	
2466	1	2529.58	125	biotite	conventional K-Ar	KA-237	"4.76E-04, 0.589E-04, 1.18E-04*"	4.75	378			Peterman and others (1972)	age of metamorphic crystallization		DUPLICATE K2O ANALYSES	
2467	1	2330.89	115	biotite	conventional K-Ar	KA-48	"4.76E-04, 0.589E-04, 1.18E-04*"	3.5	240			Peterman and others (1972)			DUPLICATE ARGON ANALYSES	AGE APPEARS TOO YOUNG
2468	1	2620.35	130	biotite	conventional K-Ar	KA-105	"4.76E-04, 0.589E-04, 1.18E-04*"	5.81	494				age of intrusion		DUPLICATE ARGON ANALYSES	
2469	1	2600.82	130	biotite	conventional K-Ar	KA-317	"4.76E-04, 0.589E-04, 1.18E-04*"	8.72	731			Peterman and others (1972)	age of metamorphic crystallization			
2470	1	2541.75	130	biotite	conventional K-Ar	KA-316	"4.76E-04, 0.589E-04, 1.18E-04*"	8.17	656			Peterman and others (1972)	age of metamorphic crystallization			
2471	1	2280	115	biotite	conventional K-Ar	KA-81	"4.76E-04, 0.589E-04, 1.18E-04*"	2.76	182				age not evaluated			
2471	2	1855.17		K feldspar		KA-81	"4.76E-04, 0.589E-04, 1.18E-04*"	7.18	335						NO AGE CALCULATED	
2472	1	1144.33	55	biotite	conventional K-Ar	KA-8	"4.76E-04, 0.589E-04, 1.18E-04*"	4.26	98				initial age disturbed by later metamorphism		DUPLICATE ARGON ANALYSES	
2472	2	1463.09		K feldspar		KA-8F	"4.76E-04, 0.589E-04, 1.18E-04*"	5.02	163						NO AGE CALCULATED	
2473	1	1477.14	75	whole rock	conventional K-Ar	KA-137	"4.76E-04, 0.589E-04, 1.18E-04*"	4.1	135			Peterman (1966)	minimum age of metamorphic crystallization			
2474	1	1193.18	60	whole rock	conventional K-Ar	KA-212	"4.76E-04, 0.589E-04, 1.18E-04*"	4.07	99.1			Peterman (1966)	age not evaluated			
2475	1	1101.24	55	biotite	conventional K-Ar	KA-295	"4.76E-04, 0.589E-04, 1.18E-04*"	7.14	156				age of intrusion			
2476	1	1008.04	50	biotite	conventional K-Ar	KA-92	"4.76E-04, 0.589E-04, 1.18E-04*"	7.51	146				age of intrusion			
2477	1	1209.79	60	biotite	conventional K-Ar	KA-176	"4.76E-04, 0.589E-04, 1.18E-04*"	6.73	167				age of intrusion			
2478	1	1063.41	55	biotite	conventional K-Ar	KA-65	"4.76E-04, 0.589E-04, 1.18E-04*"	7.24	151				age of intrusion			
2480	1	1224.62	60	whole rock	conventional K-Ar	KA-232	"4.76E-04, 0.589E-04, 1.18E-04*"	4.28	108			Peterman (1966)	initial age disturbed by later metamorphism			
2481	1	1183.5	60	whole rock	conventional K-Ar	KA-233	"4.76E-04, 0.589E-04, 1.18E-04*"	4.02	96.8			Peterman (1966)	initial age disturbed by later metamorphism			
2482	1	1071.37	55	whole rock	conventional K-Ar	KA-131	"4.76E-04, 0.589E-04, 1.18E-04*"	4.89	103			Peterman (1966)	age of metamorphic crystallization			
2483	1	1043.6	50	biotite	conventional K-Ar	KA-177	"4.76E-04, 0.589E-04, 1.18E-04*"	8.7	177				age of metamorphic crystallization			
2484	1	770	45	whole rock	conventional K-Ar	KA-101	"4.76E-04, 0.589E-04, 1.18E-04*"	5.4	74.3						DUPLICATE ARGON ANALYSES	AGE SEEMS TOO YOUNG
2485	1	1030	60	whole rock	conventional K-Ar	KA-102	"4.76E-04, 0.589E-04, 1.18E-04*"	4.34	86.3				age of intrusion			
2486	1	1037.44	50	whole rock	conventional K-Ar	KA-103	"4.76E-04, 0.589E-04, 1.18E-04*"	3.21	64.8				age of intrusion			
2487	1	868.71	45	whole rock	conventional K-Ar	KA-104	"4.76E-04, 0.589E-04, 1.18E-04*"	3.05	49							AGE SEEMS TOO YOUNG
2488	1	1632.59	80	whole rock	conventional K-Ar	KA-35	"4.76E-04, 0.589E-04, 1.18E-04*"	3.61	138			Peterman (1966)	age of metamorphic crystallization	-20+40 MESH	DUPLICATE ARGON ANALYSES	
2489	1	1639.34	80	whole rock	conventional K-Ar	KA-38	"4.76E-04, 0.589E-04, 1.18E-04*"	1.24	47.7			Peterman (1966)	age of metamorphic crystallization	-20+40 MESH	DUPLICATE ARGON ANALYSES	
2490	1	1652.89	80	muscovite	conventional K-Ar	KA-39	"4.76E-04, 0.589E-04, 1.18E-04*"	5.16	201			Peterman (1966)	age of metamorphic crystallization		DUPLICATE ARGON ANALYSES	
2491	1	1612.04	80	muscovite	conventional K-Ar	KA-40	"4.76E-04, 0.589E-04, 1.18E-04*"	4.56	171			Peterman (1966)	age of metamorphic crystallization			
2492	1	1589.87	80	whole rock	conventional K-Ar	KA-96	"4.76E-04, 0.589E-04, 1.18E-04*"	2.29	84.1			Peterman (1966)	age of metamorphic crystallization			
2493	1	1677.93	85	biotite	conventional K-Ar	KA-41	"4.76E-04, 0.589E-04, 1.18E-04*"	8.63	344				age of metamorphic crystallization		DUPLICATE ARGON ANALYSES	
2494	1	1655.57	85	biotite	conventional K-Ar	KA-43	"4.76E-04, 0.589E-04, 1.18E-04*"	7.58	296				age of metamorphic crystallization		DUPLICATE ARGON ANALYSES	
2495	1	1718.61	85	biotite	conventional K-Ar	KA-164	"4.76E-04, 0.589E-04, 1.18E-04*"	8.22	340				age of metamorphic crystallization		DUPLICATE ARGON ANALYSES	
2496	1	1505.44	75	biotite	conventional K-Ar	KA-63	"4.76E-04, 0.589E-04, 1.18E-04*"	8.89	301				minimum age of metamorphic crystallization		DUPLICATE ARGON ANALYSES	
2497	1	1554.19	80	whole rock	conventional K-Ar	KA-132	"4.76E-04, 0.589E-04, 1.18E-04*"	4.93	175			Peterman (1966)	age of metamorphic crystallization		DUPLICATE ARGON ANALYSES	
2498	1	1673.82	85	whole rock	conventional K-Ar	KA-33	"4.76E-04, 0.589E-04, 1.18E-04*"	5.54	220			Peterman (1966)	age of metamorphic crystallization			
2499	1	1583.42	80	whole rock	conventional K-Ar	KA-134	"4.76E-04, 0.589E-04, 1.18E-04*"	4.63	169			Peterman (1966)	age of metamorphic crystallization			
2500	1	1674.97	85	whole rock	conventional K-Ar	KA-215	"4.76E-04, 0.589E-04, 1.18E-04*"	4.05	161			Peterman (1966)	age of metamorphic crystallization			
2501	1	1783.34	90	biotite	conventional K-Ar	KA-10	"4.76E-04, 0.589E-04, 1.18E-04*"	6.07	266				age of intrusion		REPLICATE ARGON ANALYSES	
2501	2	1307.57		K feldspar		KA-10F	"4.76E-04, 0.589E-04, 1.18E-04*"	12.77	353						NO AGE CALCULATED	
2502	1	1764.5	90	biotite	conventional K-Ar	KA-1	"4.76E-04, 0.589E-04, 1.18E-04*"	8.33	359				age of intrusion		DUPLICATE ARGON ANALYSES	
2503	1	1738.9	85	biotite	conventional K-Ar	KA-61	"4.76E-04, 0.589E-04, 1.18E-04*"	8.38	353				age of intrusion			
2503	2	1471.24		K feldspar		KA-61F	"4.76E-04, 0.589E-04, 1.18E-04*"	12.25	401						"REPLICATE ARGON ANALYSES, NO AGE CALCULATED"	
2504	1	1776.46	90	biotite	conventional K-Ar	KA-64	"4.76E-04, 0.589E-04, 1.18E-04*"	7.76	338				age of intrusion			
2505	1	1710.98	85	biotite	conventional K-Ar	KA-60	"4.76E-04, 0.589E-04, 1.18E-04*"	7.79	320				initial age disturbed by later metamorphism			
2506	1	1592.66	80	biotite	conventional K-Ar	KA-59	"4.76E-04, 0.589E-04, 1.18E-04*"	7.74	285				initial age disturbed by later metamorphism			
2507	1	1687.71	85	biotite	conventional K-Ar	KA-62	"4.76E-04, 0.589E-04, 1.18E-04*"	7.31	294				age of intrusion		DUPLICATE ARGON ANALYSES	
2508	1	1643.46	80	biotite	conventional K-Ar	KA-6	"4.76E-04, 0.589E-04, 1.18E-04*"	7.51	290				age of intrusion		REPLICATE ARGON ANALYSES	
2508	2	1155.51		K feldspar		KA-6	"4.76E-04, 0.589E-04, 1.18E-04*"	10.94	255						NO AGE CALCULATED	
2509	1	1647.33	80	biotite	conventional K-Ar	KA-58	"4.76E-04, 0.589E-04, 1.18E-04*"	6.58	255				age of intrusion			
2510	1	2530.52	125	biotite	conventional K-Ar	KA-14-1	"4.76E-04, 0.589E-04, 1.18E-04*"	8.2	653			Goldich and others (1970)	age of later metamorphism		REPLICATE ARGON ANALYSES	
2510	2	2048.44		K feldspar		KA-14-F	"4.76E-04, 0.589E-04, 1.18E-04*"	9.24	507						"DUPLICATE ARGON ANALYSES, NO AGE CALCULATED"	
2510	3	2521.91	125	biotite	conventional K-Ar	KA-14-2	"4.76E-04, 0.589E-04, 1.18E-04*"	8.29	656			Goldich and others (1970)	age of later metamorphism	UPGRADED BIOTITE FROM KA-14-1		
2511	1	2438.57	125	biotite	conventional K-Ar	KA-15-1	"4.76E-04, 0.589E-04, 1.18E-04*"	6.52	485			Goldich and others (1970)	age of later metamorphism			
2511	2	2148.2		K feldspar		KA-15-F	"4.76E-04, 0.589E-04, 1.18E-04*"	7.87	468						"DUPLICATE ARGON ANALYSES, NO AGE CALCULATED"	
2511	3	2541.81	130	biotite	conventional K-Ar	KA-15-2	"4.76E-04, 0.589E-04, 1.18E-04*"	7.41	595			Goldich and others (1970)	age of later metamorphism	UPGRADED BIOTITE FROM KA-15-1		
2512	1	2561.73	130	biotite	conventional K-Ar	KA-107	"4.76E-04, 0.589E-04, 1.18E-04*"	7.99	651			Goldich and others (1970)	age of later metamorphism			
2513	1	2500.13	125	biotite	conventional K-Ar	KA-186	"4.76E-04, 0.589E-04, 1.18E-04*"	8.45	658			Goldich and others (1970)	age of later metamorphism			
2514	1	2458.21	125	biotite	conventional K-Ar	KA-171	"4.76E-04, 0.589E-04, 1.18E-04*"	7.22	545			Goldich and others (1970)	age of later metamorphism			
2515	1	2467.83	125	biotite	conventional K-Ar	KA-208	"4.76E-04, 0.589E-04, 1.18E-04*"	5.84	444			Goldich and others (1970)	age of later metamorphism		DUPLICATE ARGON ANALYSES	
2516	1	1752.54	90	biotite	conventional K-Ar	KA-195	"4.76E-04, 0.589E-04, 1.18E-04*"	4.62	197				age of intrusion			
2517	1	2397.11	120	biotite	conventional K-Ar	KA-210	"4.76E-04, 0.589E-04, 1.18E-04*"	8.64	623				age of later metamorphism		DUPLICATE ARGON ANALYSES	
2518	1	2290.82	115	biotite	conventional K-Ar	KA-52	"4.76E-04, 0.589E-04, 1.18E-04*"	3.88	258				age of intrusion			
2519	1	2482.53	125	biotite	conventional K-Ar	KA-51	"4.76E-04, 0.589E-04, 1.18E-04*"	7.52	578			Goldich and others (1970)	age of later metamorphism			
2519	2	1999.56		K feldspar		KA-51	"4.76E-04, 0.589E-04, 1.18E-04*"	12.92	681						NO AGE CALCULATED	
2520	1	2408.75	120	biotite	conventional K-Ar	KA-9	"4.76E-04, 0.589E-04, 1.18E-04*"	6.53	475			Goldich and others (1970)	minimum age of intrusion			
2520	2	1649.43		K feldspar		KA-9F	"4.76E-04, 0.589E-04, 1.18E-04*"	8.37	325						NO AGE CALCULATED	
2521	1	2428.42	120	biotite	conventional K-Ar	KA-13	"4.76E-04, 0.589E-04, 1.18E-04*"	6.8	502			Goldich and others (1970)	minimum age of intrusion		DUPLICATE ARGON ANALYSES	
2522	1	2455.12	125	biotite	conventional K-Ar	KA-23	"4.76E-04, 0.589E-04, 1.18E-04*"	4.82	363			Goldich and others (1970)	minimum age of intrusion			
2523	1	2301.06	115	biotite	conventional K-Ar	KA-24	"4.76E-04, 0.589E-04, 1.18E-04*"	7.52	504			Goldich and others (1970)	initial age disturbed by later metamorphism		REPLICATE ARGON ANALYSES	
2523	2	1731.72		K feldspar		KA-24F	"4.76E-04, 0.589E-04, 1.18E-04*"	13.38	560						NO AGE CALCULATED	
2524	1	1842.3	90	biotite	conventional K-Ar	KA-27-1	"4.76E-04, 0.589E-04, 1.18E-04*"	5.96	275			Goldich and others (1970)	age of later metamorphism		DUPLICATE ARGON ANALYSES	
2524	2	1367.22		K feldspar		KA-27F	"4.76E-04, 0.589E-04, 1.18E-04*"	10.46	308						DUPLICATE ARGON ANALYSES; NO AGE CALCULATED	
2524	3	1853.05	95	biotite	conventional K-Ar	KA-27-2	"4.76E-04, 0.589E-04, 1.18E-04*"	7.73	360			Goldich and others (1970)	age of later metamorphism	UPGRADED BIOTITE OF KA-27-1		
2525	1	1750.91	90	biotite	conventional K-Ar	KA-54-1	"4.76E-04, 0.589E-04, 1.18E-04*"	6.67	284			Goldich and others (1970)	age of later metamorphism		DUPLICATE ARGON ANALYSES	
2525	2	1635.32		K feldspar		KA-54F	"4.76E-04, 0.589E-04, 1.18E-04*"	12.89	494						REPLICATE ARGON ANALYSES; NO AGE CALCULATED	
2525	3	1756.44	90	biotite	conventional K-Ar	KA-54-2	"4.76E-04, 0.589E-04, 1.18E-04*"	6.31	270			Goldich and others (1970)	age of later metamorphism	UPGRADED BIOTITE OF KA-54-1		
2526	1	1840.37	90	biotite	conventional K-Ar	KA-25	"4.76E-04, 0.589E-04, 1.18E-04*"	5.97	275			Goldich and others (1970)	age of later metamorphism		DUPLICATE ARGON ANALYSES	
2527	1	1719.3	85	biotite	conventional K-Ar	KA-209	"4.76E-04, 0.589E-04, 1.18E-04*"	7.78	322			Goldich and others (1970)	initial age disturbed by later metamorphism		DUPLICATE ARGON ANALYSES	
2528	1	1790.53	90	biotite	conventional K-Ar	KA-22	"4.76E-04, 0.589E-04, 1.18E-04*"	7.12	314			Goldich and others (1970)	age of later metamorphism		DUPLICATE ARGON ANALYSES	
2529	1	1693.65	85	biotite	conventional K-Ar	KA-28	"4.76E-04, 0.589E-04, 1.18E-04*"	7.32	296			Goldich and others (1970)	minimum age of intrusion		DUPLICATE ARGON ANALYSES	
2530	1	1701.36	85	biotite	conventional K-Ar	KA-29	"4.76E-04, 0.589E-04, 1.18E-04*"	7.76	316			Goldich and others (1970)	age of intrusion		DUPLICATE ARGON ANALYSES	
2531	1	1674.63	85	biotite	conventional K-Ar	KA-55	"4.76E-04, 0.589E-04, 1.18E-04*"	8.48	337			Goldich and others (1970)	initial age disturbed by later metamorphism		DUPLICATE ARGON ANALYSES	
2531	2	1450.79		K feldspar		KA-55	"4.76E-04, 0.589E-04, 1.18E-04*"	14.28	458						NO AGE CALCULATED	
2532	1	1678.74	85	biotite	conventional K-Ar	KA-56	"4.76E-04, 0.589E-04, 1.18E-04*"	9.15	365			Goldich and others (1970)	initial age disturbed by later metamorphism			
2533	1	1679.79	85	biotite	conventional K-Ar	KA-108	"4.76E-04, 0.589E-04, 1.18E-04*"	8.44	337			Goldich and others (1970)	initial age disturbed by later metamorphism		DUPLICATE ARGON ANALYSES	
2534	1	1803.23	90	biotite	conventional K-Ar	KA-109	"4.76E-04, 0.589E-04, 1.18E-04*"	8.79	392			Goldich and others (1970)	initial age disturbed by later metamorphism		DUPLICATE ARGON ANALYSES	
2535	1	2179.79	110	biotite	conventional K-Ar	KA-44	"4.76E-04, 0.589E-04, 1.18E-04*"	5.33	325			Goldich and others (1970)	initial age disturbed by later metamorphism			
2536	1	1207.79	60	whole rock	conventional K-Ar	KA-50	"4.76E-04, 0.589E-04, 1.18E-04*"	5.17	128				minimum age of volcanism		DUPLICATE ARGON ANALYSES	
2547	1	1551.29	80	whole rock	conventional K-Ar	408 (90-100)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.65	200				minimum age of metamorphic crystallization		K DETERMINED BY XRF	
2551	1	1584.35	80	whole rock	conventional K-Ar	410 (100-110)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.75	137				minimum age of metamorphic crystallization		K DETERMINED BY XRF	
2553	1	1479.67	75	whole rock	conventional K-Ar	411 (80-100)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.15	170				age not evaluated		K DETERMINED BY XRF	
2567	1	1200		biotite	conventional K-Ar	KA-8	"4.72E-04, 0.577E-04"	4.22				Goldich and others (1961)	initial age disturbed by later metamorphism	WITH CONSIDERABLE CHLORITE		
2567	2	1540		K feldspar	conventional K-Ar	KA-8	"4.72E-04, 0.577E-04"	4.98				Goldich and others (1961)	initial age disturbed by later metamorphism			
2568	1	4.97	0.15	whole rock	conventional K-Ar	A8	"4.72E-04, 0.585E-04, 1.19E-04*"	0.996	0.0713	47			age of volcanism		"0.996%, 0.996% K2O"	
2569	1	5.01	0.15	whole rock	conventional K-Ar	A11	"4.72E-04, 0.585E-04, 1.19E-04*"	1.035	0.0748	52			age of volcanism		"1.03%, 1.04% K2O"	
2570	1	19.97		muscovite	conventional K-Ar	YAG 96	"4.72E-04, 0.585E-04, 1.19E-04*"	9.72	2.81	72		Michard-Vitrac and others (1977)			DUPLICATE K ANALYSES; AR DETERMINED BY NAA	AGE REDETERMINED; SEE REFERENCE
2570	2	21.88		muscovite	conventional K-Ar	YAG 96	"4.72E-04, 0.585E-04, 1.19E-04*"	9.72	3.08	61		Michard-Vitrac and others (1977)			AR DETERMINED BY NAA; DUPLICATE K ANALYSES	AGE REDETERMINED; SEE REFERENCE
2571	1	21.36		muscovite	conventional K-Ar	YAG 97	"4.72E-04, 0.585E-04, 1.19E-04*"	4.17	1.29	25		Michard-Vitrac and others (1977)		MUSCOVITE-CHLORITE MIXTURE	DUPLICATE K ANAYLSES; AR DETERMINED BY NAA	"AGE REDETERMINED, SEE REFERENCE"
2572	1	4.96	0.14	whole rock	conventional K-Ar	A12	"4.72E-04, 0.585E-04, 1.19E-04*"	1.04	0.0743	50			age of volcanism		"1.04%, 1.04% K2O"	
2573	1	5.2	0.15	whole rock	conventional K-Ar	A15	"4.72E-04, 0.585E-04, 1.19E-04*"	1.705	0.1278	61			age of volcanism		"1.70%, 1.71% K2O"	
2574	1	41.51		biotite	conventional K-Ar	YAG-142B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.38	5.67	78		Michard-Vitrac and others (1977)			DUPLICATE K ANALYSES; AR DETERMINED BY NAA	AGE REDETERMINED; SEE REFERENCE
2574	2	38.25		biotite	conventional K-Ar	YAG-142B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.38	5.22	78		Marvin and others (1977)			AR DETERMINED BY NAA; DUPLICATE K ANALYSES	AGE REDETERMINED; SEE REFERENCE
2575	1	58.17		biotite	conventional K-Ar	YAG-143	"4.72E-04, 0.585E-04, 1.19E-04*"	5.17	4.4	66		Michard-Vitrac and others (1977)		22% CHLORITE	DUPLICATE K ANALYSES; AR DETERMINED BY NAA	AGE REDETERMINED; SEE REFERENCE
2576	1	5	0.15	whole rock	conventional K-Ar	A17	"4.72E-04, 0.585E-04, 1.19E-04*"	1.375	0.0992	53			age of volcanism		"1.37%, 1.38% K2O"	
2577	1	431.29		whole rock	conventional K-Ar	-219	"4.72E-04, 0.585E-04, 1.19E-04*"	2.78	19.5			Armstrong (1970)			DUPLICATE K ANALYSES; AR DETERMINED BY NEUTRON ACTIVATION	"AGE REDETERMINED, SEE REFERENCE, SAMPLE 219"
2578	1	360.1		whole rock	conventional K-Ar	-220	"4.72E-04, 0.585E-04, 1.19E-04*"	2.48	14.23			Armstrong (1970)			DUPLICATE K ANALYSES; AR DETERMINED BY NEUTRON ACTIVATION	"AGE REDETERMINED, SEE REFERENCE, SAMPLE 220"
2578	2	323.01		whole rock	conventional K-Ar	-220	"4.72E-04, 0.585E-04, 1.19E-04*"	2.48	12.63			Michard-Vitrac and others (1977)			DUPLICATE K ANALYSES; AR DETERMINED BY NEUTRON ACTIVATION	"AGE REDETERMINED, SEE REFERENCE, SAMPLE 220"
2579	1	92.65	5	biotite	conventional K-Ar	57NC89	"4.72E-04, 0.585E-04, 1.19E-04*"	9.03	12.36	95			age of intrusion			
2580	1	155.99	8	biotite	conventional K-Ar	59NC57	"4.72E-04, 0.585E-04, 1.19E-04*"	7.84	18.39	96			age of intrusion			
2581	1	152.06	8	biotite	conventional K-Ar	59NC59	"4.72E-04, 0.585E-04, 1.19E-04*"	9.29	21.22	95			age of intrusion			
2582	1	83.1	4	biotite	conventional K-Ar	60NC175	"4.72E-04, 0.585E-04, 1.19E-04*"	8.56	10.48	71			age of intrusion			
2583	1	35.07	2	biotite	conventional K-Ar	62NC142	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	4.303	80			age of intrusion			
2584	1	75.32	2	biotite	conventional K-Ar	63NC20	"4.72E-04, 0.585E-04, 1.19E-04*"	9.04	10.01	73			age of intrusion			
2585	1	90.87	4	biotite	conventional K-Ar	63NC40	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	11.11	92			age of intrusion			
2586	1	39.19	2	biotite	conventional K-Ar	63NC86	"4.72E-04, 0.585E-04, 1.19E-04*"	8.29	4.729	84			age of intrusion			
2587	1	31.93	2	biotite	conventional K-Ar	63NC106	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	3.803	82			age of intrusion			
2588	1	1780.06	55	pyroxenes	conventional K-Ar	88	"4.72E-04, 0.584E-04, 1.19E-04*"	0.138	6.03	90			"sample contains excess radiogenic argon, age is too old"			
2589	1	352.87	10	hornblende	conventional K-Ar	154	"4.72E-04, 0.584E-04, 1.19E-04*"	1.44	8.08	98			age of intrusion			
2590	1	547.79	16	hornblende	conventional K-Ar	140	"4.72E-04, 0.584E-04, 1.19E-04*"	0.675	6.22	93			age not evaluated			
2591	1	424.1	13	hornblende	conventional K-Ar	141	"4.72E-04, 0.584E-04, 1.19E-04*"	0.77	5.3	86			age not evaluated			
2592	1	578.23	17	hornblende	conventional K-Ar	145	"4.72E-04, 0.584E-04, 1.19E-04*"	1.18	11.58	96			age not evaluated			
2599	1	272.52	8	biotite	conventional K-Ar	M-1	"4.72E-04, 0.584E-04, 1.19E-04*"	4.59	19.44	94			age of intrusion	SOMEWHAT IMPURE	K20 DETERMINED BY ISOTOPE DILUTION	
2600	1	98.66	2	phlogopite	conventional K-Ar	AK-1	"4.72E-04, 0.584E-04, 1.19E-04*"	5.74	8.38	89			age of intrusion	SOME IMPURITIES		
2601	1	108.3	3	phlogopite	conventional K-Ar	AK-8	"4.72E-04, 0.584E-04, 1.19E-04*"	9.82	15.78	95			age of volcanism			
2602	1	12.82	0.3	sanidine	conventional K-Ar	203F	"4.72E-04, 0.584E-04, 1.19E-04*"	7.29	1.35	70			age of volcanism		REPLICATE ANALYSES	
2603	1	13.25	0.6	sanidine	conventional K-Ar	765	"4.72E-04, 0.584E-04, 1.19E-04*"	6.79	1.3	55			age of volcanism		REPLICATE ANALYSES	
2604	1	13.64	0.5	sanidine	conventional K-Ar	45	"4.72E-04, 0.584E-04, 1.19E-04*"	7.51	1.48	38			age of volcanism		DUPLICATE ANALYSES	
2605	1	18	0.6	biotite	conventional K-Ar	44B	"4.72E-04, 0.584E-04, 1.19E-04*"	4.76	1.24	41			age of volcanism	BIOTITE-HORNBLENDE MIXTURE WITH 4% WHOLE-ROCK	REPLICATE ANALYSES	
2605	2	18.01	1	plagioclase	conventional K-Ar	44F	"4.72E-04, 0.584E-04, 1.19E-04*"	1.42	0.37	14			age of volcanism		REPLICATE K ANALYSES	
2606	1	18.45	0.4	biotite	conventional K-Ar	36B	"4.72E-04, 0.584E-04, 1.19E-04*"	5.88	1.57	56			age of volcanism	PLUS 35% HORNBLENDE AND WHOLE-ROCK	REPLICATE K ANALYSES	
2607	1	20.27	0.4	biotite	conventional K-Ar	41	"4.72E-04, 0.584E-04, 1.19E-04*"	6.78	1.99	53			age of volcanism	"8% HORNBLENDE, 3% PYROXENE"	REPLICATE ANALYSES	
2608	1	22.11	0.4	biotite	conventional K-Ar	46	"4.72E-04, 0.584E-04, 1.19E-04*"	7.68	2.46	66			age of volcanism	5% HORNBLENDE	DUPLICATE ANALYSES	
2609	1	21.02	0.4	biotite	conventional K-Ar	35B	"4.72E-04, 0.584E-04, 1.19E-04*"	5.75	1.75	57			age of volcanism	25% HORNBLENDE AND WHOLE-ROCK	REPLICATE ANALYSES	
2609	2	21.58	1	plagioclase	conventional K-Ar	35F	"4.72E-04, 0.584E-04, 1.19E-04*"	0.8	0.25	24			age of volcanism		REPLICATE ANALYSES	
2610	1	21.91	0.4	biotite	conventional K-Ar	32	"4.72E-04, 0.584E-04, 1.19E-04*"	3.75	1.19	50			age of volcanism	"30% HORNBLENDE, 6% PYROXENE"	REPLICATE ANALYSES	
2611	1	24.67	0.5	biotite	conventional K-Ar	70	"4.72E-04, 0.584E-04, 1.19E-04*"	4.81	1.72	51			age of volcanism	"35% HORNBLENDE, 2% GLASS"	REPLICATE ANALYSES	
2612	1	21.85	0.5	biotite	conventional K-Ar	73	"4.72E-04, 0.584E-04, 1.19E-04*"	8.28	2.62	43			age of volcanism		DUPLICATE K ANALYSES	
2613	1	22.27	0.4	sanidine	conventional K-Ar	828	"4.72E-04, 0.584E-04, 1.19E-04*"	9.64	3.11	84			age of volcanism		REPLICATE ANALYSES	
2614	1	24.01	0.5	biotite	conventional K-Ar	764B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.22	2.86	50			age of volcanism		DUPLICATE K ANALYSES	
2614	2	23.27	1.7	plagioclase	conventional K-Ar	764F	"4.72E-04, 0.584E-04, 1.19E-04*"	0.86	0.29	23			age of volcanism		REPLICATE K ANALYSES	
2615	1	23.92	0.5	biotite	conventional K-Ar	47B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.76	2.69	69			age of volcanism	4% HORNBLENDE AND WHOLE-ROCK	DUPLICATE K ANALYSES	
2615	2	25.25	0.7	plagioclase	conventional K-Ar	47F	"4.72E-04, 0.584E-04, 1.19E-04*"	1.12	0.41	41			age of volcanism		REPLICATE ANALYSES	
2615	3	21.9	0.4	glass	conventional K-Ar	47G	"4.72E-04, 0.584E-04, 1.19E-04*"	4.35	1.38	57			minimum age of volcanism		REPLICATE ANALYSES	
2616	1	24.05	0.5	biotite	conventional K-Ar	42	"4.72E-04, 0.584E-04, 1.19E-04*"	7.46	2.6	67			age of volcanism	"2% CHLORITE, 2% HORNBLENDE"	DUPLICATE K ANALYSES	
2617	1	24.66	0.5	biotite	conventional K-Ar	48B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.91	2.47	50			age of volcanism		DUPLICATE ANALYSES	
2617	2	22.88	0.5	sanidine	conventional K-Ar	48F	"4.72E-04, 0.584E-04, 1.19E-04*"	9.32	3.09	80			age of volcanism		REPLICATE ANALYSES	
2618	1	26.85	1	plagioclase	conventional K-Ar	827	"4.72E-04, 0.584E-04, 1.19E-04*"	0.95	0.37	31			age of volcanism		DUPLICATE ANALYSES	
2619	1	24.7	0.8	biotite	conventional K-Ar	43	"4.72E-04, 0.584E-04, 1.19E-04*"	7.01	2.51	34			age of volcanism		REPLICATE ANALYSES	
2620	1	26.65	0.5	biotite	conventional K-Ar	167	"4.72E-04, 0.584E-04, 1.19E-04*"	5.77	2.23	54			age of volcanism	20% HORNBLENDE	DUPLICATE K ANALYSES	
2621	1	27.93	0.6	biotite	conventional K-Ar	165	"4.72E-04, 0.584E-04, 1.19E-04*"	6.54	2.65	60			age of volcanism	15% HORNBLENDE	REPLICATE K ANALYSES	
2622	1	25.71	0.5	whole rock	conventional K-Ar	160	"4.72E-04, 0.584E-04, 1.19E-04*"	5.74	2.14	86			minimum age of volcanism		DUPLICATE K ANALYSES	
2623	1	25.08	0.5	whole rock	conventional K-Ar	170	"4.72E-04, 0.584E-04, 1.19E-04*"	3.3	1.2	47			minimum age of volcanism		DUPLICATE K ANALYSES	
2624	1	30.31	0.6	biotite	conventional K-Ar	158	"4.72E-04, 0.584E-04, 1.19E-04*"	6.59	2.9	67			age of volcanism	22% HORNBLENDE	REPLICATE ANALYSES	
2625	1	31.63	0.6	biotite	conventional K-Ar	101E	"4.72E-04, 0.584E-04, 1.19E-04*"	7.77	3.57	73			age of volcanism		REPLICATE ANALYSES	
2626	1	29.83	0.6	biotite	conventional K-Ar	63	"4.72E-04, 0.584E-04, 1.19E-04*"	7.39	3.2	75			age of volcanism		DUPLICATE ANALYSES	
2627	1	29.67	0.6	biotite	conventional K-Ar	103C	"4.72E-04, 0.584E-04, 1.19E-04*"	8.01	3.45	61			age of volcanism		DUPLICATE ANALYSES	
2628	1	29.93	0.6	biotite	conventional K-Ar	159B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.77	3.81	69			age of volcanism		REPLICATE ANALYSES	
2628	2	28.35	0.6	glass	conventional K-Ar	159-G	"4.72E-04, 0.584E-04, 1.19E-04*"	3.89	1.6	53			minimum age of volcanism		REPLICATE ANALYSES	
2629	1	31.53	0.6	biotite	conventional K-Ar	102C	"4.72E-04, 0.584E-04, 1.19E-04*"	3.45	1.58	54			age of volcanism	45% HORNBLENDE	REPLICATE ANALYSES	
2630	1	30.41	0.6	biotite	conventional K-Ar	170B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.72	3.85	77			age of volcanism		DUPLICATE ANALYSES	
2631	1	27.34	0.8	plagioclase	conventional K-Ar	831	"4.72E-04, 0.584E-04, 1.19E-04*"	0.58	0.23	29			minimum age of volcanism		REPLICATE ANALYSES	
2632	1	29.28	0.6	biotite	conventional K-Ar	834AB	"4.72E-04, 0.584E-04, 1.19E-04*"	7.53	3.2	55			age of volcanism		DUPLICATE K ANALYSES	
2632	2	31.56	0.9	hornblende	conventional K-Ar	834AH	"4.72E-04, 0.584E-04, 1.19E-04*"	0.96	0.44	40			age of volcanism	8% BIOTITE	REPLICATE ANALYSES	
2633	1	27.99	0.6	biotite	conventional K-Ar	834B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.88	3.2	55			age of volcanism		DUPLICATE ANALYSES	
2634	1	26.85	0.5	biotite	conventional K-Ar	81	"4.72E-04, 0.584E-04, 1.19E-04*"	8.96	3.49	73					REPLICATE ANALYSES	AGE LOWERED
2635	1	29.27	0.8	hornblende - biotite	conventional K-Ar	183B	"4.72E-04, 0.584E-04, 1.19E-04*"	2.66	1.13	35			age of volcanism	HORNBLENDE-BIOTITE MIXTURE WITH 40% WHOLE-ROCK	REPLICATE K ANALYSES	
2636	1	31.3	0.6	sanidine	conventional K-Ar	826	"4.72E-04, 0.584E-04, 1.19E-04*"	11.22	5.1	82			age of volcanism		REPLICATE ANALYSES	
2637	1	31.11	0.6	biotite	conventional K-Ar	77	"4.72E-04, 0.584E-04, 1.19E-04*"	8.41	3.8	47			age of volcanism	5% GLASS	DUPLICATE ANALYSES	
2638	1	33.32	0.7	sanidine	conventional K-Ar	829	"4.72E-04, 0.584E-04, 1.19E-04*"	12.35	5.98	85			age of volcanism		REPLICATE ANALYSES	
2639	1	33.05	0.7	biotite	conventional K-Ar	76	"4.72E-04, 0.584E-04, 1.19E-04*"	7.56	3.63	59			age of volcanism	3% CHLORITE	REPLICATE ANALYSES	
2640	1	35.02	0.7	biotite	conventional K-Ar	79	"4.72E-04, 0.584E-04, 1.19E-04*"	8.72	4.44	59			age of volcanism		REPLICATE K ANALYSES	
2641	1	34.36	0.7	biotite	conventional K-Ar	150	"4.72E-04, 0.584E-04, 1.19E-04*"	7.87	3.93	72			age of volcanism	5% WHOLE-ROCK	DUPLICATE ANALYSES	
2642	1	8.81	0.2	sanidine	conventional K-Ar	139	"4.72E-04, 0.584E-04, 1.19E-04*"	8.34	1.06	44			age of volcanism		REPLICATE ANALYSES	
2643	1	11.9	0.4	sanidine	conventional K-Ar	90	"4.72E-04, 0.584E-04, 1.19E-04*"	8.03	1.38	54			age of volcanism		DUPLICATE ANALYSES	
2644	1	39.82	0.9	biotite	conventional K-Ar	207	"4.72E-04, 0.584E-04, 1.19E-04*"	5.21	3.02	44			age of volcanism	"2% CHLORITE, 20% WHOLE-ROCK"	REPLICATE K ANALYSES	
2645	1	6.24	0.2	sanidine	conventional K-Ar	177	"4.72E-04, 0.584E-04, 1.19E-04*"	7.45	0.67	47			age of volcanism	30% WHOLE-ROCK	REPLICATE ANALYSES	
2646	1	3.49	0.2	sanidine	conventional K-Ar	173	"4.72E-04, 0.584E-04, 1.19E-04*"	9.34	0.47	34			age of volcanism		DUPLICATE ANALYSES	
2647	1	34.56	0.7	biotite	conventional K-Ar	172B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.4	4.22	47			age of volcanism		REPLICATE K ANALYSES	
2648	1	37.03	0.7	biotite	conventional K-Ar	171	"4.72E-04, 0.584E-04, 1.19E-04*"	7.76	4.18	53			age of volcanism		DUPLICATE ANALYSES	
2649	1	15.31	1	whole rock	conventional K-Ar	112	"4.72E-04, 0.584E-04, 1.19E-04*"	4.79	1.06	12			age of volcanism		DUPLICATE ANALYSES	
2650	1	37.01	0.7	biotite	conventional K-Ar	111	"4.72E-04, 0.584E-04, 1.19E-04*"	8.47	4.56	50			age of volcanism		DUPLICATE K ANALYSES	
2651	1	31.34	0.6	biotite	conventional K-Ar	117	"4.72E-04, 0.584E-04, 1.19E-04*"	8.35	3.8	51			age of volcanism	7% CHLORITE	DUPLICATE K ANALYSES	
2652	1	14.89	0.5	whole rock	conventional K-Ar	120	"4.72E-04, 0.584E-04, 1.19E-04*"	3.14	0.676	30			age of volcanism		DUPLICATE ANALYSES	
2653	1	31.71	0.6	whole rock	conventional K-Ar	121	"4.72E-04, 0.584E-04, 1.19E-04*"	4.19	1.93	61			age of intrusion		REPLICATE ANALYSES	
2654	1	31.69	0.7	whole rock	conventional K-Ar	122	"4.72E-04, 0.584E-04, 1.19E-04*"	4.28	1.97	39			age of volcanism		DUPLICATE K ANALYSES	
2655	1	32.87	1	whole rock	conventional K-Ar	128	"4.72E-04, 0.584E-04, 1.19E-04*"	11.16	5.33	59			age of volcanism		REPLICATE ANALYSES	
2656	1	9.52	0.4	glass	conventional K-Ar	129	"4.72E-04, 0.584E-04, 1.19E-04*"	5.78	0.794	28			minimum age of volcanism		REPLICATE ANALYSES	
2657	1	37.33	0.7	biotite	conventional K-Ar	208	"4.72E-04, 0.584E-04, 1.19E-04*"	7.44	4.04	55			age of volcanism	"8% HORNBLENDE, 7% CHLORITE"	DUPLICATE K ANALYSES	
2658	1	36.01	0.7	biotite	conventional K-Ar	191F	"4.72E-04, 0.584E-04, 1.19E-04*"	6.76	3.54	44			age of volcanism	"20% HORNBLENDE, 3% CHLORITE"	DUPLICATE K ANALYSES	
2659	1	32.67	0.7	biotite	conventional K-Ar	194	"4.72E-04, 0.584E-04, 1.19E-04*"	6.91	3.28	43			age of volcanism	15% HORNBLENDE	REPLICATE K ANALYSES	
2660	1	33.86	0.7	whole rock	conventional K-Ar	201	"4.72E-04, 0.584E-04, 1.19E-04*"	5.73	2.82	67			age of volcanism		REPLICATE K ANALYSES	
2661	1	35.68	0.7	biotite	conventional K-Ar	149	"4.72E-04, 0.584E-04, 1.19E-04*"	8.5	4.41	61			age of volcanism		DUPLICATE K ANALYSES	
2662	1	36.54	0.7	biotite	conventional K-Ar	105	"4.72E-04, 0.584E-04, 1.19E-04*"	7.79	4.14	60			age of intrusion		DUPLICATE K ANALYSES	
2663	1	36.69	0.7	biotite	conventional K-Ar	104	"4.72E-04, 0.584E-04, 1.19E-04*"	7.57	4.04	53			age of volcanism	3% CLAY	REPLICATE K ANALYSES	
2664	1	23.5	1	biotite	conventional K-Ar	56	"4.72E-04, 0.584E-04, 1.19E-04*"	7.34	2.5	33			age of volcanism	2% CHLORITE	REPLICATE K ANALYSES	
2665	1	34.87	0.9	biotite	conventional K-Ar	55	"4.72E-04, 0.584E-04, 1.19E-04*"	8.64	4.38	75			age of volcanism		REPLICATE ANALYSES	
2666	1	24.37	0.5	biotite	conventional K-Ar	766	"4.72E-04, 0.584E-04, 1.19E-04*"	7.7	2.72	60			age of volcanism	4% HORNBLENDE		
2667	1	34.09	0.8	biotite	conventional K-Ar	60	"4.72E-04, 0.584E-04, 1.19E-04*"	7.73	3.83	43			age of volcanism		DUPLICATE K ANALYSES	
2668	1	27.09	0.5	biotite	conventional K-Ar	72	"4.72E-04, 0.584E-04, 1.19E-04*"	8.22	3.23	58			age of volcanism		DUPLICATE K ANALYSES	
2669	1	19.04	0.5	biotite	conventional K-Ar	50B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.51	2.07	46			age of volcanism		DUPLICATE K ANALYSES	
2669	2	18.48	1	plagioclase	conventional K-Ar	50F	"4.72E-04, 0.584E-04, 1.19E-04*"	0.972	0.26	19			age of volcanism		DUPLICATE K ANALYSES	
2669	3	16.97	2	pyroxenes	conventional K-Ar	50PX	"4.72E-04, 0.584E-04, 1.19E-04*"	0.33	0.081	8			minimum age of volcanism	20% WHOLE-ROCK	DUPLICATE K ANALYSES	
2670	1	14.87	0.3	biotite	conventional K-Ar	26	"4.72E-04, 0.584E-04, 1.19E-04*"	6	1.29	46			age of volcanism		REPLICATE K ANALYSES	
2671	1	34.82	0.7	whole rock	conventional K-Ar	54	"4.72E-04, 0.584E-04, 1.19E-04*"	3.26	1.65	80			age of volcanism		DUPLICATE K ANALYSES	
2672	1	8.81	0.3	whole rock	conventional K-Ar	203I	"4.72E-04, 0.584E-04, 1.19E-04*"	1.73	0.22	30			age of volcanism		REPLICATE K ANALYSES	
2673	1	20.68	0.5	whole rock	conventional K-Ar	71Z	"4.72E-04, 0.584E-04, 1.19E-04*"	3.22	0.964	41			age of volcanism		DUPLICATE K ANALYSES	
2674	1	35.89	0.7	whole rock	conventional K-Ar	106	"4.72E-04, 0.584E-04, 1.19E-04*"	2.05	1.07	65			age of volcanism		DUPLICATE K ANALYSES	
2675	1	15.03	1	whole rock	conventional K-Ar	123	"4.72E-04, 0.584E-04, 1.19E-04*"	1.45	0.315	16			age of volcanism		DUPLICATE K ANALYSES	
2676	1	14.85	1.5	whole rock	conventional K-Ar	125	"4.72E-04, 0.584E-04, 1.19E-04*"	1.56	0.335	99			age of volcanism		DUPLICATE K ANALYSES; *AR VALUE IS QUESTIONABLE--COMPILER)	
2677	1	6.04	1	whole rock	conventional K-Ar	27	"4.72E-04, 0.584E-04, 1.19E-04*"	0.85	0.074	5			age of volcanism		REPLICATE ANALYSES	
2678	1	4.5	0.3	amphiboles - hornblende	conventional K-Ar	28	"4.72E-04, 0.584E-04, 1.19E-04*"	1.85	0.12	28			age of intrusion		DUPLICATE ANALYSES	
2679	1	12.09	1	whole rock	conventional K-Ar	33	"4.72E-04, 0.584E-04, 1.19E-04*"	6.3	1.1	12			age of intrusion		REPLICATE K ANALYSES	
2680	1	11.4	0.3	whole rock	conventional K-Ar	977	"4.72E-04, 0.584E-04, 1.19E-04*"	2.55	0.42	47			age of volcanism		DUPLICATE K ANALYSES	
2681	1	36.98	1.4	whole rock	conventional K-Ar	110	"4.72E-04, 0.584E-04, 1.19E-04*"	3.96	2.13	25			age of intrusion		REPLICATE K ANALYSES	
2682	1	33.18	0.6	biotite	conventional K-Ar	137	"4.72E-04, 0.584E-04, 1.19E-04*"	8.67	4.18	64			age of intrusion		DUPLICATE K ANALYSES	
2683	1	32.97	0.6	whole rock	conventional K-Ar	118	"4.72E-04, 0.584E-04, 1.19E-04*"	4.28	2.05	48			age of intrusion		REPLICATE K ANALYSES	
2684	1	23.97	0.6	biotite	conventional K-Ar	98B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.32	2.89	29			age not evaluated		DUPLICATE ANALYSES	
2684	2	49.42	1	muscovite	conventional K-Ar	98M	"4.72E-04, 0.584E-04, 1.19E-04*"	8.79	6.34	35			age not evaluated	"10% BIOTITE, 10% QUARTZ+FELDSPAR"	DUPLICATE K ANALYSES	
2685	1	46.55	4	pyroxenes	conventional K-Ar	154A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.109	0.074	12			age not evaluated		DUPLICATE ANALYSES	
2686	1	23.3	0.5	biotite	conventional K-Ar	74B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.85	2.65	53			age of intrusion	3% CHLORITE	DUPLICATE K ANALYSES	
2686	2	25.32	0.5	muscovite	conventional K-Ar	74M	"4.72E-04, 0.584E-04, 1.19E-04*"	8.69	3.19	63			age of intrusion		DUPLICATE K ANALYSES	
2687	1	32.99	0.6	biotite	conventional K-Ar	100	"4.72E-04, 0.584E-04, 1.19E-04*"	8.49	4.07	63			age of intrusion		DUPLICATE K ANALYSES	
2688	1	28.48	0.9	hornblende	conventional K-Ar	67	"4.72E-04, 0.584E-04, 1.19E-04*"	1.96	0.81	32			age of intrusion	"20% BIOTITE, 18% CHLORITE, 3% WHOLE-ROCK"	DUPLICATE K ANALYSES	
2689	1	12.76	0.5	biotite	conventional K-Ar	30	"4.72E-04, 0.584E-04, 1.19E-04*"	5.37	0.99	35			age of intrusion	35% CHLORITE	DUPLICATE K ANALYSES	
2690	1	12.92	0.5	biotite	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	6.16	1.15	31			age of intrusion	16% CHLORITE	DUPLICATE K ANALYSES	
2691	1	14.11	0.6	biotite	conventional K-Ar	19A	"4.72E-04, 0.584E-04, 1.19E-04*"	8.58	1.75	33			age of intrusion		DUPLICATE K ANALYSES	
2692	1	14.82	1	orthoclase	conventional K-Ar	19BF	"4.72E-04, 0.584E-04, 1.19E-04*"	8.26	1.77	15			age of intrusion		REPLICATE ANALYSES	
2692	2	15.41	0.6	biotite	conventional K-Ar	19BB	"4.72E-04, 0.584E-04, 1.19E-04*"	5.43	1.21	24			age of intrusion			
2693	1	17.41	0.3	whole rock	conventional K-Ar	19C	"4.72E-04, 0.584E-04, 1.19E-04*"	3.89	0.98	55			age of intrusion		DUPLICATE K ANALYSES	
2694	1	13.05	0.3	whole rock	conventional K-Ar	22	"4.72E-04, 0.584E-04, 1.19E-04*"	5.04	0.95	59			age of intrusion		DUPLICATE K ANALYSES	
2695	1	16.27	0.3	biotite	conventional K-Ar	24	"4.72E-04, 0.584E-04, 1.19E-04*"	9.22	2.17	35			age of intrusion		DUPLICATE K ANALYSES	
2696	1	12.79	0.3	biotite	conventional K-Ar	752	"4.72E-04, 0.584E-04, 1.19E-04*"	8.28	1.53	39			age of intrusion		REPLICATE K ANALYSES	
2697	1	6.44	0.4	whole rock	conventional K-Ar	753	"4.72E-04, 0.584E-04, 1.19E-04*"	8.07	0.75	15			age of intrusion		DUPLICATE K ANALYSES	
2698	1	7.79	0.3	biotite	conventional K-Ar	754	"4.72E-04, 0.584E-04, 1.19E-04*"	7.03	0.79	25			age of intrusion	10% HORNBLENDE	DUPLICATE K ANALYSES	
2699	1	23.95	0.5	biotite	conventional K-Ar	140	"4.72E-04, 0.584E-04, 1.19E-04*"	7.75	2.69	71			age of intrusion		DUPLICATE K ANALYSES	
2700	1	37.84	0.8	biotite	conventional K-Ar	206B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.83	3.76	55			age of intrusion	15% HORNBLENDE		
2700	2	42.9	0.8	hornblende+biotite+(uralitized)pyroxene mixture	conventional K-Ar	206H	"4.72E-04, 0.584E-04, 1.19E-04*"	1.92	1.2	51				HORNBLENDE+BIOTITE+(URALITIZED)PYROXENE MIXTURE	REPLICATE ANALYSES	
2701	1	44.2	0.8	biotite - hornblende	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.19E-04*"	2.45	1.56	62			age of intrusion	BIOTITE-HORNBLENDE MIXTURE WITH 6% CHLORITE	DUPLICATE ANALYSES	
2702	1	29.3	0.6	biotite	conventional K-Ar	176B	"4.72E-04, 0.584E-04, 1.19E-04*"	4.42	1.88	59			age of intrusion	"15% CHLORITE, 5% WHOLE-ROCK"	REPLICATE K ANALYSES	
2702	2	27.18	0.5	orthoclase	conventional K-Ar	176F	"4.72E-04, 0.584E-04, 1.19E-04*"	10.35	4.08	66			minimum age of intrusion		DUPLICATE K ANALYSES	
2703	1	9.49	0.3	biotite	conventional K-Ar	147	"4.72E-04, 0.584E-04, 1.19E-04*"	7.08	0.97	34			age of intrusion	"8% WHOLE-ROCK, 5% CHLORITE"	DUPLICATE ANALYSES	
2704	1	30.62	0.6	biotite	conventional K-Ar	148	"4.72E-04, 0.584E-04, 1.19E-04*"	7.13	3.17	63			age of intrusion	"4% HORNBLENDE, 2% CHLORITE"	REPLICATE K ANALYSES	
2705	1	21.46	0.4	biotite	conventional K-Ar	162	"4.72E-04, 0.584E-04, 1.19E-04*"	7.69	2.39	58			age of intrusion		DUPLICATE ANALYSES	
2706	1	21.55	0.4	biotite	conventional K-Ar	163	"4.72E-04, 0.584E-04, 1.19E-04*"	7.4	2.31	57			age of intrusion	6% HORNBLENDE	DUPLICATE ANALYSES	
2707	1	22.55	0.7	augite-ferroaugite	conventional K-Ar	164	"4.72E-04, 0.584E-04, 1.19E-04*"	1.01	0.33	34			age of intrusion	"30% HORNBLENDE, 5% WHOLE-ROCK"	DUPLICATE ANALYSES	
2708	1	39.82	1.2	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.4	4.29	90			age of intrusion	35-60 MESH	DUPLICATE K2O ANALYSES	
2709	1	39.47	1.3	biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.92	4.55	83			age of intrusion	35-60 MESH	DUPLICATE K2O ANALYSES	
2710	1	41.26	1.3	biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	5.3	77			age of intrusion	35-60 MESH	DUPLICATE K20 ANALYSES	
2711	1	38.87	1	biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	9.22	5.216	77			age of intrusion	20-60 MESH	DUPLICATE K20 ANALYSES	
2712	1	38.65	1.2	biotite	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	4.922	83			age of intrusion	35-80 MESH	DUPLICATE K20 ANALYSES	
2713	1	38.62	1.2	biotite	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.53	4.794	85			age of intrusion	35-60 MESH	DUPLICATE K20 ANALYSES	
2714	1	38.45	1.2	biotite	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.93	4.997	74			age of intrusion	35-80 MESH	DUPLICATE K20 ANALYSES	
2715	1	38.25	1.2	phlogopite	conventional K-Ar	11A	"4.72E-04, 0.585E-04, 1.19E-04*"	9.18	5.109	82			age of intrusion	20-60 MESH	DUPLICATE K20 ANALYSES	
2715	2	38.19	1.2	biotite	conventional K-Ar	11B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.65	4.807	73			age of intrusion	35-80 MESH	DUPLICATE K20 ANALYSES	
2716	1	37.85	1	biotite	conventional K-Ar	12A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.1	4.46	64			age of intrusion	35-60 MESH		
2716	2	35.91	0.9	hornblende	conventional K-Ar	12B	"4.72E-04, 0.585E-04, 1.19E-04*"	1.07	0.5587	54			age of intrusion	35-80 MESH	DUPLICATE K20 ANALYSES	
2717	1	34.97	1	biotite	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	8.77	4.459	73			age of volcanism	35-80 MESH		
2718	1	32.84	0.9	biotite	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	7.25	3.459	57			age of volcanism	35-60 MESH		
2719	1	39.22	1.4	biotite	conventional K-Ar	19A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.69	4.96	74			age of intrusion	35-60 MESH	DUPLICATE K20 ANALYSES	
2719	2	39.08	1.4	biotite	conventional K-Ar	19B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.93	4.51	74			age of intrusion	80-120 MESH	DUPLICATE K20 ANALYSES	
2720	1	39.02	1.3	biotite	conventional K-Ar	20A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	5.02	79			age of intrusion	35-60 MESH	DUPLICATE K20 ANALYSES	
2720	2	37.8	1.3	biotite	conventional K-Ar	20B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.42	4.63	80			age of intrusion	80-120 MESH	DUPLICATE K20 ANALYSES	
2721	1	38.65	1	biotite	conventional K-Ar	21	"4.72E-04, 0.585E-04, 1.19E-04*"	8.74	4.916	80			age of intrusion	35-80 MESH		
2722	1	36.78	1.6	biotite	conventional K-Ar	22	"4.72E-04, 0.585E-04, 1.19E-04*"	9.08	4.857	36			age of intrusion	35-80 MESH		
2723	1	38.17	1.4	biotite	conventional K-Ar	23A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.48	4.71	92			age of intrusion	80-120 MESH		
2723	2	37.83	1.4	biotite	conventional K-Ar	23B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.74	4.81	68			age of intrusion	35-60 MESH	DUPLICATE K20 ANALYSES	
2724	1	37.48	1.2	biotite	conventional K-Ar	24	"4.72E-04, 0.585E-04, 1.19E-04*"	8.725	4.757	85			age of intrusion		DUPLICATE K20 ANALYSES	
2725	1	36.87	1.5	biotite	conventional K-Ar	25	"4.72E-04, 0.585E-04, 1.19E-04*"	10.05	5.39	60			age of intrusion	35-80 MESH	DUPLICATE K20 ANALYSES	
2757	1	36.22	0.7	biotite	conventional K-Ar	109	"4.72E-04, 0.584E-04, 1.19E-04*"	8.43	4.44	64			age of intrusion		DUPLICATE ANALYSES	
2758	1	32.4	0.6	biotite	conventional K-Ar	138	"4.72E-04, 0.584E-04, 1.19E-04*"	8.35	3.93	61			age of intrusion		DUPLICATE K ANALYSES	
2759	1	36.37	0.7	biotite	conventional K-Ar	93	"4.72E-04, 0.584E-04, 1.19E-04*"	6.22	3.29	62			age of intrusion	"3% CHLORITE, 10% HORNBLENDE"	DUPLICATE K ANALYSES	
2760	1	32.92	0.6	biotite	conventional K-Ar	82	"4.72E-04, 0.584E-04, 1.19E-04*"	7.59	3.63	67			age of intrusion		DUPLICATE K ANALYSES	
2761	1	37.09	0.7	biotite	conventional K-Ar	52	"4.72E-04, 0.584E-04, 1.19E-04*"	7.84	4.23	66			age of intrusion	3% CHLORITE		
2762	1	34.45	0.7	biotite	conventional K-Ar	37	"4.72E-04, 0.584E-04, 1.19E-04*"	7.45	3.73	70			minimum age of intrusion	7% CHLORITE AND MONTMORILLONITE	DUPLICATE K ANALYSES	INITIAL AGE MAY BE MESOZOIC
2763	1	33.3	0.6	biotite	conventional K-Ar	155	"4.72E-04, 0.584E-04, 1.19E-04*"	7.11	3.44	64			age of intrusion	6% CHLORITE AND MONTMORILLONITE	REPLICATE K ANALYSES	
2764	1	13.54	0.5	biotite	conventional K-Ar	29	"4.72E-04, 0.584E-04, 1.19E-04*"	7.97	1.56	39			age of intrusion	1% CHLORITE	DUPLICATE K ANALYSES	
2765	1	14.15	0.6	biotite	conventional K-Ar	23	"4.72E-04, 0.584E-04, 1.19E-04*"	2.9	0.593	25			age of intrusion	BIOTITE-HORNBLENDE CONCENTRATE WITH 10% QUARTZ AND FELDSPAR	REPLICATE K ANALYSES	
2766	1	16.05	0.3	biotite	conventional K-Ar	25	"4.72E-04, 0.584E-04, 1.19E-04*"	7.41	1.72	45			age of intrusion	2% CHLORITE	REPLICATE K ANALYSES	
2767	1	33.54	0.7	biotite	conventional K-Ar	145	"4.72E-04, 0.584E-04, 1.19E-04*"	4.35	2.12	42		Armstrong (1970); Armstrong (1966)	age of intrusion	BIOTITE-HORNBLENDE MIXTURE WITH 10% WHOLE-ROCK	DUPLICATE ANALYSES	
2768	1	19.29	0.4	biotite	conventional K-Ar	94	"4.72E-04, 0.584E-04, 1.19E-04*"	8.2	2.29	45		Armstrong (1970); Armstrong (1966)	age of intrusion	2% CHLORITE	REPLICATE K ANALYSES	
2769	1	17.38	0.3	biotite	conventional K-Ar	175	"4.72E-04, 0.584E-04, 1.19E-04*"	8.87	2.23	58		Armstrong (1970); Armstrong (1966)	age of intrusion	1% MONTMORILLONITE	DUPLICATE K ANALYSES	
2770	1	21.96	0.6	biotite	conventional K-Ar	161	"4.72E-04, 0.584E-04, 1.19E-04*"	5.47	1.74	32		Armstrong (1970); Armstrong (1966)	age of intrusion	5% HORNBLENDE	REPLICATE ANALYSES	
2771	1	26.8	0.5	biotite	conventional K-Ar	146	"4.72E-04, 0.584E-04, 1.19E-04*"	7.1	2.76	55		Armstrong (1970); Armstrong (1966)	age of intrusion	"4% CHLORITE, 5% HORNBLENDE"	DUPLICATE K ANALYSES	
2772	1	33.62	0.7	biotite	conventional K-Ar	154	"4.72E-04, 0.584E-04, 1.19E-04*"	6.14	3	61			age of intrusion	"8% CHLORITE, 15% HORNBLENDE"	DUPLICATE K ANALYSES	
2773	1	0.57	0.04	sanidine	conventional K-Ar	21	"4.72E-04, 0.584E-04, 1.19E-04*"	9.2	0.076	16		Armstrong (1966)	age of volcanism		REPLICATE ANALYSES	
2774	1	92.33	2	biotite	conventional K-Ar	53	"4.72E-04, 0.584E-04, 1.19E-04*"	3.93	5.36	65			age of intrusion	"30% CHLORITE, 10% QUARTZ, FELDSPAR, AND HORNBLENDE"	REPLICATE K ANALYSES	
2775	1	162.19	3	biotite	conventional K-Ar	91	"4.72E-04, 0.584E-04, 1.19E-04*"	5.55	13.56	87			age of intrusion	"9% CHLORITE, 10% HORNBLENDE"	DUPLICATE K ANALYSES	
2776	1	155.39	3	muscovite	conventional K-Ar	107	"4.72E-04, 0.584E-04, 1.19E-04*"	7.76	18.13	90			age of intrusion	"10% BIOTITE, CHLORITE, QUARTZ, AND FELDSPAR"	REPLICATE K ANALYSES	
2777	1	103.28	2	biotite	conventional K-Ar	108	"4.72E-04, 0.584E-04, 1.19E-04*"	5.6	8.57	84			age of intrusion	20% CHLORITE AND MONTMORILLONITE	REPLICATE ANALYSES	
2778	1	153.82	3	biotite	conventional K-Ar	115	"4.72E-04, 0.584E-04, 1.19E-04*"	6.64	15.35	88			age of intrusion	15% CHLORITE	REPLICATE K ANALYSES	
2779	1	142.65	3	hornblende	conventional K-Ar	130	"4.72E-04, 0.584E-04, 1.19E-04*"	0.744	1.59	59			age of intrusion	25% QUARTZ AND FELDSPAR	DUPLICATE K ANALYSES	
2780	1	156.77	3	biotite	conventional K-Ar	132	"4.72E-04, 0.584E-04, 1.19E-04*"	7.04	16.6	89			age of intrusion	3% CHLORITE AND MONTMORILLONITE	DUPLICATE K ANALYSES	
2781	1	102.02	2	biotite	conventional K-Ar	190	"4.72E-04, 0.584E-04, 1.19E-04*"	6.77	10.23	85				"3% GARNET, 9% CHLORITE AND MONTMORILLONITE"	REPLICATE K ANALYSES	AGE IS PROBABLY JURASSIC
2782	1	141.61	3	biotite	conventional K-Ar	216	"4.72E-04, 0.584E-04, 1.19E-04*"	7.69	16.31	90			age of intrusion	7% CHLORITE	DUPLICATE K ANALYSES	
2783	1	137.23	3	biotite	conventional K-Ar	87	"4.72E-04, 0.584E-04, 1.19E-04*"	3.22	6.61	89			age of intrusion	BIOTITE-HORNBLENDE MIXTURE	DUPLICATE K ANALYSES	
2784	1	121.27	2	biotite	conventional K-Ar	180	"4.72E-04, 0.584E-04, 1.19E-04*"	5.41	9.77	80			initial age disturbed by later metamorphism	30% CHLORITE	REPLICATE K ANALYSES	
2785	1	29.21	0.6	muscovite	conventional K-Ar	39	"4.72E-04, 0.584E-04, 1.19E-04*"	7.69	3.26	68			age not evaluated		DUPLICATE K ANALYSES	
2786	1	29.17	0.7	common micas	conventional K-Ar	40	"4.72E-04, 0.584E-04, 1.19E-04*"	5.15	2.18	44			age not evaluated	MUSCOVITE-BIOTITE MIXTURE	DUPLICATE K ANALYSES	
2787	1	29.41	0.6	muscovite	conventional K-Ar	96	"4.72E-04, 0.584E-04, 1.19E-04*"	9.72	4.15	63		Armstrong and Hanson (1966)	age of intrusion		DUPLICATE K ANALYSES	
2788	1	17.57	0.6	muscovite	conventional K-Ar	97	"4.72E-04, 0.584E-04, 1.19E-04*"	4.17	1.06	39		Armstrong and Hanson (1966)	age not evaluated	MUSCOVITE-CHLORITE MIXTURE	DUPLICATE K ANALYSES	
2789	1	27.76	0.6	biotite	conventional K-Ar	135	"4.72E-04, 0.584E-04, 1.19E-04*"	7.92	3.19	65			age not evaluated	8% CHLORITE	DUPLICATE K ANALYSES	
2790	1	21.12	0.4	biotite	conventional K-Ar	136	"4.72E-04, 0.584E-04, 1.19E-04*"	8.99	2.75	58			age not evaluated	1% CHLORITE	REPLICATE K ANALYSES	
2791	1	49.97	1	biotite	conventional K-Ar	142B	"4.72E-04, 0.584E-04, 1.19E-04*"	9.39	6.85	92		Armstrong and Hanson (1966)	age not evaluated		DUPLICATE K ANALYSES	
2792	1	68.03	1.4	biotite	conventional K-Ar	143	"4.72E-04, 0.584E-04, 1.19E-04*"	5.17	5.16	89		Armstrong and Hanson (1966)	minimum age of metamorphic crystallization	22% CHLORITE	DUPLICATE ANALYSES	
2793	1	60.12	1.2	whole rock	conventional K-Ar	192B	"4.72E-04, 0.584E-04, 1.19E-04*"	3.42	3.01	60			age not evaluated		DUPLICATE K ANALYSES	
2794	1	452.22	9	whole rock	conventional K-Ar	219	"4.72E-04, 0.584E-04, 1.19E-04*"	2.78	20.57	92		Pierce and Armstrong (1966)	minimum age of volcanism		DUPLICATE K ANALYSES	
2795	1	377.45	8	whole rock	conventional K-Ar	220	"4.72E-04, 0.584E-04, 1.19E-04*"	2.48	14.99	91		Pierce and Armstrong (1966)			DUPLICATE K ANALYSES	MAY DATE THE TIME OF FAULTING
2796	1	34.91	2	hornblende	conventional K-Ar	70 ACS 423	"4.72E-04, 0.585E-04, 1.19E-04*"	0.131	0.0665	17			age not evaluated		DUPLICATE K20 ANALYSES	
2797	1	305.56	9	biotite	conventional K-Ar	68 ABG 247	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	42.28	94			age meaning uncertain (geologic factors)		DUPLICATE K20 ANALYSES	
2798	1	181.94	5	biotite	conventional K-Ar	68 ABG 727	"4.72E-04, 0.585E-04, 1.19E-04*"	8.81	24.28	94			age meaning uncertain (geologic factors)		DUPLICATE K20 ANALYSES	
2799	1	66.39	2	biotite	conventional K-Ar	72 ACY 127	"4.72E-04, 0.585E-04, 1.19E-04*"	9.3	9.055	87			minimum age of intrusion			
2799	2	64.31	2	hornblende	conventional K-Ar	72 ACY 127	"4.72E-04, 0.585E-04, 1.19E-04*"	0.782	0.7371	78			minimum age of intrusion		DUPLICATE K20 ANALYSES	
2800	1	67.27	2	biotite	conventional K-Ar	72 ACY 117	"4.72E-04, 0.585E-04, 1.19E-04*"	9.33	9.207	79			minimum age of intrusion			
2800	2	64.61	2	hornblende	conventional K-Ar	72 ACY 117	"4.72E-04, 0.585E-04, 1.19E-04*"	1.042	0.9869	77			minimum age of intrusion		DUPLICATE K20 ANALYSES	
2801	1	445.54	13	amphiboles	conventional K-Ar	66 AE 91	"4.72E-04, 0.585E-04, 1.19E-04*"	0.674	4.904	51			minimum age of volcanism		DUPLICATE K20 ANALYSES	
2802	1	450.75	13	amphiboles	conventional K-Ar	65 AE 31	"4.72E-04, 0.585E-04, 1.19E-04*"	0.594	4.379	85			minimum age of volcanism		DUPLICATE K20 ANALYSES	
2803	1	286.67	9	amphiboles	conventional K-Ar	71 AE 67	"4.72E-04, 0.585E-04, 1.19E-04*"	0.653	2.921	79			initial age disturbed by later metamorphism		DUPLICATE K20 ANALYSES	
2804	1	114.42	3	amphiboles	conventional K-Ar	71 AE 68	"4.72E-04, 0.585E-04, 1.19E-04*"	0.842	1.432	67			age of intrusion		DUPLICATE K20 ANALYSES	
2805	1	67.28	2	biotite	conventional K-Ar	69 ACK 1008	"4.72E-04, 0.585E-04, 1.19E-04*"	8.67	8.556	78			minimum age of intrusion		DUPLICATE K20 ANALYSES	
2806	1	2.91	0.14	whole rock	conventional K-Ar	73 AHP 47	"4.72E-04, 0.585E-04, 1.19E-04*"	0.866	0.0363	40			age of volcanism		REPLICATE K20 ANALYSES	
2807	1	65.8	2	hornblende	conventional K-Ar	70 AMK 15D	"4.72E-04, 0.585E-04, 1.19E-04*"	1.594	1.538	70			minimum age of intrusion		DUPLICATE K20 ANALYSES	
2807	2	56.91	2	biotite	conventional K-Ar	70 AMK 15D	"4.72E-04, 0.585E-04, 1.19E-04*"	8.71	7.25	46			minimum age of intrusion		DUPLICATE K20 ANALYSES	
2808	1	113.98	3	biotite	conventional K-Ar	70 AMK 14A-2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.71	13.06	91			age not evaluated		DUPLICATE K20 ANALYSES	
2809	1	122.15	4	hornblende	conventional K-Ar	70 AMK 10B	"4.72E-04, 0.585E-04, 1.19E-04*"	0.417	0.7587	66			maximum age of intrusion			
2810	1	107.94	3	hornblende	conventional K-Ar	70 AMK 8A-2	"4.72E-04, 0.585E-04, 1.19E-04*"	0.858	1.374	72			age not evaluated		DUPLICATE K20 ANALYSES	
2810	2	110.6	3	biotite	conventional K-Ar	70 AMK 8A-2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	13.63	85			age not evaluated		DUPLICATE K20 ANALYSES	
2811	1	30.02	1	biotite	conventional K-Ar	70 AWK 6A	"4.72E-04, 0.585E-04, 1.19E-04*"	7.22	3.147	60			minimum age of intrusion		DUPLICATE K20 ANALYSES	
2812	1	31.35	1	biotite	conventional K-Ar	70 AWK 5D	"4.72E-04, 0.585E-04, 1.19E-04*"	7.13	3.246	69			minimum age of intrusion		DUPLICATE K20 ANALYSES	
2813	1	33.83	1	hornblende	conventional K-Ar	70 AMK 3C	"4.72E-04, 0.585E-04, 1.19E-04*"	0.48	0.236	35			minimum age of intrusion			
2814	1	23.25	1	biotite	conventional K-Ar	70 AMK 3A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.69	2.928	20					DUPLICATE K20 ANALYSES	AGE MAY BE LOW DUE TO CATACLASIS
2815	1	113.41	3	hornblende	conventional K-Ar	70 AWK 2A	"4.72E-04, 0.585E-04, 1.19E-04*"	0.934	1.574	87			age of intrusion		DUPLICATE K20 ANALYSES	
2815	2	112.32	3	biotite	conventional K-Ar	70 AWK 2A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.87	14.8	93			age of intrusion			
2816	1	144.9	4	hornblende	conventional K-Ar	71 AMK 26A	"4.72E-04, 0.585E-04, 1.19E-04*"	0.813	1.766	76			age not evaluated			
2817	1	148.35	4	hornblende	conventional K-Ar	71 AMK 19C	"4.72E-04, 0.585E-04, 1.19E-04*"	0.681	1.516	77			age not evaluated		DUPLICATE K20 ANALYSES	
2818	1	3.84	0.8	hornblende	conventional K-Ar	70 AMK 61C	"4.72E-04, 0.585E-04, 1.19E-04*"	0.468	0.0259	5			age of intrusion			
2819	1	145.56	4	hornblende	conventional K-Ar	70 AMK 60D-2	"4.72E-04, 0.585E-04, 1.19E-04*"	0.8	1.746	77			age not evaluated			
2820	1	137.49	7	hornblende	conventional K-Ar	70 AMK 60B	"4.72E-04, 0.585E-04, 1.19E-04*"	0.704	1.448	30			age not evaluated		DUPLICATE K20 ANALYSES	
2821	1	57.94	2	hornblende	conventional K-Ar	70 AMA 226	"4.72E-04, 0.585E-04, 1.19E-04*"	1.062	0.9003	52			age of intrusion		DUPLICATE K20 ANALYSES	
2821	2	57.8	2	biotite	conventional K-Ar	70 AMA 226	"4.72E-04, 0.585E-04, 1.19E-04*"	7.37	6.232	79			age of intrusion			
2822	1	59.1	2	hornblende	conventional K-Ar	67 AMA 226	"4.72E-04, 0.585E-04, 1.19E-04*"	1.058	0.9151	73			age of intrusion		DUPLICATE K20 ANALYSES	
2822	2	58.1	2	biotite	conventional K-Ar	67 AMA 226	"4.72E-04, 0.585E-04, 1.19E-04*"	7.22	6.138	86			age of intrusion		DUPLICATE K20 ANALYSES	
2823	1	94.59	2.6	hornblende	conventional K-Ar	70 AMM 158B	"4.72E-04, 0.585E-04, 1.19E-04*"	0.894	1.25	81			age not evaluated		DUPLICATE K20 ANALYSES	
2823	2	90.48	1.5	biotite	conventional K-Ar	70 AMM 158B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.8	10.42	93			age not evaluated		DUPLICATE K20 ANALYSES	
2824	1	96.23	3	biotite		71 AMM 415A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.96	12.75	78			age not evaluated		DUPLICATE K20 ANALYSES	
2825	1	96.21	3	biotite	conventional K-Ar	71 AGK 259	"4.72E-04, 0.585E-04, 1.19E-04*"	7.12	10.13	68			age not evaluated		DUPLICATE K20 ANALYSES	
2826	1	61.37	1.8	biotite	conventional K-Ar	S-70	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	7.46	85			minimum age of intrusion		DUPLICATE K20 ANALYSES	
2827	1	11.39	3	hornblende	conventional K-Ar	54 SN 197	"4.72E-04, 0.585E-04, 1.19E-04*"	0.354	0.0582	5			minimum age of intrusion		DUPLICATE K20 ANALYSES	
2827	2	3.45	0.2	biotite	conventional K-Ar	54 SN 197	"4.72E-04, 0.585E-04, 1.19E-04*"	7.54	0.3754	32			initial age disturbed by later metamorphism			THERMAL EVENT RELATED TO LATE-CENOZOIC MAKUSHIN VOLCANO
2828	1	17.51	1	biotite	conventional K-Ar	12-100	"4.72E-04, 0.585E-04, 1.19E-04*"	7.51	1.902	30			age not evaluated			
2829	1	15.02	1	plagioclase	conventional K-Ar	69 C 24	"4.72E-04, 0.585E-04, 1.19E-04*"	0.247	0.0536	16			age of intrusion			
2830	1	88.83	2.6	biotite	conventional K-Ar	HAIWEE-1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.78	11.51	89			age not evaluated		DUPLICATE K20 ANALYSES	
2831	1	0.09	0.01	whole rock	conventional K-Ar	H72-52	"4.72E-04, 0.585E-04, 1.19E-04*"	4.72	0.0062	9			age not evaluated		DUPLICATE K20 ANALYSES	
2832	1	0.48	0.01	whole rock	conventional K-Ar	H72-1	"4.72E-04, 0.585E-04, 1.19E-04*"	4.74	0.0327	33			age not evaluated		DUPLICATE K20 ANALYSES	
2833	1	0.55	0.02	whole rock	conventional K-Ar	H72-73DI	"4.72E-04, 0.585E-04, 1.19E-04*"	4.68	0.0372	41			age not evaluated		DUPLICATE K20 ANALYSES	
2834	1	83.89	2.5	biotite	conventional K-Ar	A-240	"4.72E-04, 0.585E-04, 1.19E-04*"	6.9	8.53	89			age not evaluated		DUPLICATE K20 ANALYSES	
2835	1	570	7	lamprobolite	39Ar-40Ar total fusion	72 MC-117E	"4.72E-04, 0.585E-04, 1.19E-04"			91			age of volcanism		39AR-40AR AGE; ADDITIONAL DATA IN ARTICLE	
2836	1	100.95	3	hornblende	conventional K-Ar	T-152	"4.72E-04, 0.585E-04, 1.19E-04*"	1.259	1.882	83			age not evaluated		DUPLICATE K20 ANALYSES	
2836	2	92.35	2.7	biotite	conventional K-Ar	T-152	"4.72E-04, 0.585E-04, 1.19E-04*"	9.06	12.36	94			age not evaluated		DUPLICATE K20 ANALYSES	
2837	1	95.9	2.8	hornblende	conventional K-Ar	T-153	"4.72E-04, 0.585E-04, 1.19E-04*"	0.578	0.8196	51			age not evaluated		DUPLICATE K20 ANALYSES	
2837	2	90.75	2.7	biotite	conventional K-Ar	T-153	"4.72E-04, 0.585E-04, 1.19E-04*"	9	12.06	93			age not evaluated		DUPLICATE K20 ANALYSES	
2838	1	90.68	2.7	muscovite	conventional K-Ar	T-154	"4.72E-04, 0.585E-04, 1.19E-04*"	10.3	13.79	77			age not evaluated		DUPLICATE K20 ANALYSES	
2838	2	94.02	2.8	biotite	conventional K-Ar	T-154	"4.72E-04, 0.585E-04, 1.19E-04*"	9.32	12.95	94			age not evaluated		DUPLICATE K20 ANALYSES	
2839	1	96.94	2.8	muscovite	conventional K-Ar	T-155	"4.72E-04, 0.585E-04, 1.19E-04*"	10.74	15.4	67			age not evaluated		DUPLICATE K20 ANALYSES	
2839	2	110.67	3	biotite	conventional K-Ar	T-155	"4.72E-04, 0.585E-04, 1.19E-04*"	9.39	15.43	93			age not evaluated		DUPLICATE K20 ANALYSES	
2840	1	83.2	2.4	hornblende	conventional K-Ar	T-156	"4.72E-04, 0.585E-04, 1.19E-04*"	0.564	0.6914	61			age not evaluated		DUPLICATE K20 ANALYSES	
2840	2	80.74	2.4	biotite	conventional K-Ar	T-156	"4.72E-04, 0.585E-04, 1.19E-04*"	9.16	10.89	90			age not evaluated		DUPLICATE K20 ANALYSES	
2841	1	43.95	1.3	hornblende	conventional K-Ar	C-559	"4.72E-04, 0.585E-04, 1.19E-04*"	0.56	0.3587	27			age not evaluated		DUPLICATE K20 ANALYSES	
2842	1	100.22	2.9	biotite	conventional K-Ar	H-1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.87	13.16	90			age not evaluated		DUPLICATE K20 ANALYSES	
2843	1	2379.18	120	biotite	conventional K-Ar	3(KA-307)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.8	626			Goldich and others (1961)	initial age disturbed by later metamorphism			
2844	1	2392.78	120	biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.07	580				initial age disturbed by later metamorphism			
2866	1	997.29	50	biotite	conventional K-Ar	KA-93B	"4.76E-04, 0.589E-04, 1.18E-04*"	5.79	111				age of intrusion		DUPLICATE ARGON ANALYSES	
2866	2	1047.24		K feldspar		KA-93F	"4.76E-04, 0.589E-04, 1.18E-04*"	12.77	261						NO AGE CALCULATED	
2867	1	457.49	23	glauconite	conventional K-Ar	KA-113	"4.76E-04, 0.589E-04, 1.18E-04*"	7.87	59							AGE IS TOO YOUNG
2868	1	436.45	22	glauconite	conventional K-Ar	KA-114	"4.76E-04, 0.589E-04, 1.18E-04*"	7.99	56.8							AGE TOO YOUNG
2869	1	445.94	22	glauconite	conventional K-Ar	KA-192	"4.76E-04, 0.589E-04, 1.18E-04*"	7.73	56.3							AGE TOO YOUNG
2870	1	1973.36	100	biotite	conventional K-Ar	57B	"4.76E-04, 0.589E-04, 1.18E-04*"	7.62	393			Goldich and others (1970)	initial age disturbed by later metamorphism		DUPLICATE ARGON ANALYSES	
2870	2	1700.18		K feldspar		57F	"4.76E-04, 0.589E-04, 1.18E-04*"	11.8	480						NO AGE CALCULATED	
2871	1	1066.26	50	biotite	conventional K-Ar	128B	"4.76E-04, 0.589E-04, 1.18E-04*"	8.17	171				age of intrusion			
2872	1	754.54	40	illite group	conventional K-Ar	190	"4.76E-04, 0.589E-04, 1.18E-04*"	10.38	140							AGE TOO YOUNG
2873	1	337.57	16	muscovite	conventional K-Ar	OSH	"4.76E-04, 0.589E-04, 1.18E-04*"	10.16	54.3				minimum age of intrusion			
2874	1	55.63	1.5	hornblende	conventional K-Ar	LS-1-63	"4.72E-04, 0.584E-04, 1.19E-04*"	1.15	0.9354	75		Jaffe and others (1959)	"maximum age of intrusion, sample contains excess radiogenic argon, age is too old"		40AR CALCULATED BY COMPILER	
2876	1	23.01	3.3	augite-ferroaugite	conventional K-Ar	LS-2-63	"4.72E-04, 0.584E-04, 1.19E-04*"	0.065	0.0217	13			age of intrusion		40AR CALCULATED BY COMPILER	
2877	1	26.16	2.5	augite-ferroaugite	conventional K-Ar	LS-3-63	"4.72E-04, 0.584E-04, 1.19E-04*"	0.116	0.044	20			age of intrusion		40AR CALCULATED BY COMPILER	
2878	1	40.4		phlogopite	conventional K-Ar	MC-66	"4.72E-04, 0.585E-04, 1.19E-04"	9.16		64			age of intrusion			
2878	2	39.4		phlogopite	conventional K-Ar	MC-66	"4.72E-04, 0.585E-04, 1.19E-04"	9.16		74			age of intrusion			
2879	1	36.5		phlogopite	conventional K-Ar	MC-104	"4.72E-04, 0.585E-04, 1.19E-04"	9.76		70			age of volcanism			
2879	2	37.4		phlogopite	conventional K-Ar	MC-104	"4.72E-04, 0.585E-04, 1.19E-04"	9.76		65			age of volcanism			
2880	1	13.7		phlogopite	conventional K-Ar	WC-2	"4.72E-04, 0.585E-04, 1.19E-04"	9.64		34			age of intrusion			
2880	2	12.8		phlogopite	conventional K-Ar	WC-2	"4.72E-04, 0.585E-04, 1.19E-04"	9.64		40			age of intrusion			
2881	1	38.7		whole rock	conventional K-Ar	WST-15	"4.72E-04, 0.585E-04, 1.19E-04"	5.54		80			age of intrusion			
2882	1	31.91	0.9	muscovite	conventional K-Ar	PED-56-66	"4.76E-04, 0.589E-04, 1.18E-04*"	10.12	4.69	90			initial age disturbed by later metamorphism	COARSE-GRAINED		MAY INDICATE MAXIMUM AGE OF UPLIFT AND COOLING
2883	1	27.96	0.9	biotite	conventional K-Ar	PED-20-62	"4.76E-04, 0.589E-04, 1.18E-04*"	7.1	2.88	72			"age of uplift and cooling, initial age disturbed by later metamorphism"			
2884	1	30.17	1	muscovite	conventional K-Ar	AH-L6	"4.76E-04, 0.589E-04, 1.18E-04*"	9.93	4.35	49			"age of uplift and cooling, initial age disturbed by later metamorphism"			
2885	1	27.57	0.9	muscovite	conventional K-Ar	AH-L77	"4.76E-04, 0.589E-04, 1.18E-04*"	8.1	3.24	73			"age of uplift and cooling, initial age disturbed by later metamorphism"			
2903	1	27.5	0.4	biotite	conventional K-Ar	156	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
2904	1	30.6	0.3	biotite	conventional K-Ar	200	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
2905	1	0.03	0.04	whole rock	conventional K-Ar	P-CL	"4.72E-04, 0.585E-04, 1.19E-04"		0.0043	0			minimum age of volcanism		NO POTASSIUM VALUE GIVEN	"AGE RANGE IS 30,000-128,000 YEARS."
2906	1	0.03	0.05	whole rock	conventional K-Ar	P-21-1	"4.72E-04, 0.585E-04, 1.19E-04"		0.0113	1			minimum age of volcanism		NO POTASSIUM VALUE GIVEN	"AGE RANGE IS 30,000-128,000 YEARS."
2906	2	0.07	0.06	whole rock	conventional K-Ar	P-29-2	"4.72E-04, 0.585E-04, 1.19E-04"		0.0202	1			minimum age of volcanism		NO POTASSIUM VALUE GIVEN	
2907	1	0.09	0.08	whole rock	conventional K-Ar	P-31-1	"4.72E-04, 0.585E-04, 1.19E-04"		0.026	1			age of volcanism		NO POTASSIUM VALUE GIVEN	"AGE RANGE IS 30,000-128,000 YEARS."
2907	2	0.13	0.1	whole rock	conventional K-Ar	P-31-2	"4.72E-04, 0.585E-04, 1.19E-04"		0.0362	1			age of volcanism		NO POTASIUM VALUE GIVEN	
2908	1	0.5	0.09	whole rock	conventional K-Ar	B-03	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	"AVERAGE OF 5 AGE DETERMINATIONS IS 536,000 YEARS."
2908	2	0.55	0.1	whole rock	conventional K-Ar	B-03	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
2909	1	0.58	0.13	whole rock	conventional K-Ar	B-04	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	"AVERAGE OF 5 AGE DETERMINATIONS IS 536,000 YEARS."
2909	2	0.55	0.12	whole rock	conventional K-Ar	B-04	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
2909	3	0.5	0.11	whole rock	conventional K-Ar	B-04	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
2910	1	0.72	0.08	whole rock	conventional K-Ar	K-03	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	"AVERAGE OF 2 AGE DETERMINATIONS IS 667,000 YEARS."
2910	2	0.62	0.06	whole rock	conventional K-Ar	K-03	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
2911	1	0.99	0.09	whole rock	conventional K-Ar	B-10	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	"AVERAGE OF 6 AGE DETERMINATIONS IS 918,000 YEARS."
2912	1	0.88	0.08	whole rock	conventional K-Ar	B-11	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	"AVERAGE OF 6 AGE DETERMINATIONS IS 918,000 YEARS."
2913	1	0.96	0.1	whole rock	conventional K-Ar	B-12	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	"AVERAGE OF 6 AGE DETERMINATIONS IS 918,000 YEARS."
2913	2	0.94	0.07	whole rock	conventional K-Ar	B-12	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
2914	1	0.89	0.06	whole rock	conventional K-Ar	B-19	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	"AVERAGE OF 6 AGE DETERMINATIONS IS 918,000 YEARS."
2914	2	0.85	0.06	whole rock	conventional K-Ar	B-19	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
2915	1	32.8	0.5	whole rock	conventional K-Ar	R-21	"4.72E-04, 0.585E-04, 1.19E-04"		1.1159	85			age of volcanism			
2916	1	0.44	0.04	whole rock	conventional K-Ar	R-29	"4.72E-04, 0.585E-04, 1.19E-04"		0.0134	11			age of volcanism			
2917	1	19.7	0.5	whole rock	conventional K-Ar	R-28	"4.72E-04, 0.585E-04, 1.19E-04"		0.4481	27			age of intrusion			
2918	1	19	0.6	whole rock	conventional K-Ar	R-34	"4.72E-04, 0.585E-04, 1.19E-04"		1.1349	33			age of volcanism			
2919	1	20.6	0.4	whole rock	conventional K-Ar	R-38	"4.72E-04, 0.585E-04, 1.19E-04"		0.9865	63			age of volcanism			
2920	1	21.9	0.4	biotite	conventional K-Ar	R-31	"4.72E-04, 0.585E-04, 1.19E-04"		2.7291	74			age of volcanism			
2921	1	21.7	0.4	biotite	conventional K-Ar	R-32	"4.72E-04, 0.585E-04, 1.19E-04"		2.7114	71			age of volcanism			
2922	1	21.8	0.4	sanidine	conventional K-Ar	R-16	"4.72E-04, 0.585E-04, 1.19E-04"		2.8002	81			age of volcanism			
2923	1	21.8	0.4	biotite	conventional K-Ar	EM-1	"4.72E-04, 0.585E-04, 1.19E-04"		2.7366	67			age of volcanism			
2924	1	21.8	0.4	whole rock	conventional K-Ar	R-17	"4.72E-04, 0.585E-04, 1.19E-04"		0.937	87			age of volcanism			
2925	1	22.3	0.4	whole rock	conventional K-Ar	R-20	"4.72E-04, 0.585E-04, 1.19E-04"		1.1125	87			age of volcanism			
2926	1	22.2	0.4	whole rock	conventional K-Ar	R-22	"4.72E-04, 0.585E-04, 1.19E-04"		1.1181	86			age of volcanism			
2927	1	22.8	0.4	biotite	conventional K-Ar	R-3	"4.72E-04, 0.585E-04, 1.19E-04"		2.9377	65			age of volcanism			
2928	1	22.1	0.4	biotite	conventional K-Ar	R-12	"4.72E-04, 0.585E-04, 1.19E-04"		2.7345	69			age of volcanism			
2929	1	22.4	0.4	biotite	conventional K-Ar	R-24	"4.72E-04, 0.585E-04, 1.19E-04"		2.8156	79			age of volcanism			
2930	1	22.3	0.4	biotite	conventional K-Ar	ES-1	"4.72E-04, 0.585E-04, 1.19E-04"		2.8518	52			age of volcanism			
2931	1	22.1	0.6	plagioclase	conventional K-Ar	R-11	"4.72E-04, 0.585E-04, 1.19E-04"		0.3999	42			age of volcanism			
2932	1	22.9	0.4	whole rock	conventional K-Ar	R-23	"4.72E-04, 0.585E-04, 1.19E-04"		0.6932	82			age of intrusion			
2933	1	20.7	0.5	whole rock	conventional K-Ar	R-27	"4.72E-04, 0.585E-04, 1.19E-04"		0.5109	52			age of volcanism			
2934	1	26	0.8	hornblende	conventional K-Ar	R-19	"4.72E-04, 0.585E-04, 1.19E-04"		0.3696	39			age of volcanism			
2935	1	25.1	0.7	whole rock	conventional K-Ar	R-5	"4.72E-04, 0.585E-04, 1.19E-04"		0.4659	41			age of volcanism			
2936	1	25.1	0.4	biotite	conventional K-Ar	R-1	"4.72E-04, 0.585E-04, 1.19E-04"		2.953	66			age of volcanism			
2937	1	25.5	0.5	plagioclase	conventional K-Ar	R-13	"4.72E-04, 0.585E-04, 1.19E-04"		0.3888	39			age of volcanism			
2938	1	24.4	0.8	plagioclase	conventional K-Ar	R-15	"4.72E-04, 0.585E-04, 1.19E-04"		0.2839	27			age of volcanism			
2939	1	23.9	0.5	plagioclase	conventional K-Ar	R-9	"4.72E-04, 0.585E-04, 1.19E-04"		0.361	36			age of volcanism			
2940	1	24	0.4	biotite	conventional K-Ar	R-10	"4.72E-04, 0.585E-04, 1.19E-04"		3.1024	56			age of volcanism			
2941	1	25	0.4	plagioclase	conventional K-Ar	R-8	"4.72E-04, 0.585E-04, 1.19E-04"		0.4476	56			age of volcanism			
2942	1	25.2	0.4	plagioclase	conventional K-Ar	R-7	"4.72E-04, 0.585E-04, 1.19E-04"		0.4546	33			age of volcanism			
2943	1	28.7	0.5	biotite	conventional K-Ar	R-25	"4.72E-04, 0.585E-04, 1.19E-04"		3.7	63			age of volcanism			
2944	1	31.1	0.5	biotite	conventional K-Ar	R-4	"4.72E-04, 0.585E-04, 1.19E-04"		3.7946	67			age of volcanism			
2960	1	114.43	2	biotite	conventional K-Ar	SC-69-1B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.085	12.05	86			age of intrusion			
2961	1	66.41	1.3	biotite	conventional K-Ar	SC-69-7	"4.72E-04, 0.584E-04, 1.19E-04*"	7.61	7.411	73			age not evaluated			
2961	2	72.72	1.4	muscovite	conventional K-Ar	SC-69-7	"4.72E-04, 0.584E-04, 1.19E-04*"	9.37	10.01	72			age not evaluated			
2962	1	69.61	1.4	biotite	conventional K-Ar	SC-69-8	"4.72E-04, 0.584E-04, 1.19E-04*"	8.315	8.496	80			age not evaluated			
2963	1	71.2	1	biotite	conventional K-Ar	SC-69-9	"4.72E-04, 0.584E-04, 1.19E-04*"	8.39	8.772	8563			age not evaluated		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2964	1	72.91	1	biotite	conventional K-Ar	SC-69-10	"4.72E-04, 0.584E-04, 1.19E-04*"	7.4	7.927	7379			initial age disturbed by later metamorphism		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2964	2	109.26	1.5	biotite - hornblende	conventional K-Ar	SC-69-10	"4.72E-04, 0.584E-04, 1.19E-04*"	5.69	9.227	5783			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2965	1	93.26	1.5	hornblende - biotite	conventional K-Ar	SC-69-11	"4.72E-04, 0.584E-04, 1.19E-04*"	2.675	3.686	4752			"minimum age of intrusion, may denote delayed cooling"		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2966	1	148.73	2	biotite	conventional K-Ar	SC-69-12	"4.72E-04, 0.584E-04, 1.19E-04*"	5.86	13.08	8050			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2967	1	73.03	1	biotite	conventional K-Ar	SC-69-13	"4.72E-04, 0.584E-04, 1.19E-04*"	6.13	6.577	8079			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2968	1	73.01	1.4	biotite	conventional K-Ar	SC-69-14	"4.72E-04, 0.584E-04, 1.19E-04*"	7.77	8.335	78			minimum age of intrusion			
2969	1	71.88	1	biotite	conventional K-Ar	SC-69-16	"4.72E-04, 0.584E-04, 1.19E-04*"	7.745	8.177	8386			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2970	1	83.92	1.2	hornblende - biotite	conventional K-Ar	SC-69-17	"4.72E-04, 0.584E-04, 1.19E-04*"	1.99	2.461	4358			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2971	1	73.92	1.4	biotite	conventional K-Ar	SC-69-18	"4.72E-04, 0.584E-04, 1.19E-04*"	8.19	8.897	76			minimum age of intrusion			
2972	1	72.68	1.4	biotite	conventional K-Ar	SC-69-19	"4.72E-04, 0.584E-04, 1.19E-04*"	7.995	8.536	86			age not evaluated			
2973	1	70.19	1	biotite	conventional K-Ar	SC-69-20	"4.72E-04, 0.584E-04, 1.19E-04*"	8.5	8.759	7779			initial age disturbed by later metamorphism		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2973	2	80.06	1	hornblende	conventional K-Ar	SC-69-20	"4.72E-04, 0.584E-04, 1.19E-04*"	1.21	1.426	5954			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2974	1	73.83	1	biotite	conventional K-Ar	SC-69-21	"4.72E-04, 0.584E-04, 1.19E-04*"	8.28	8.984	8680			age not evaluated		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2975	1	83.29	1.2	biotite	conventional K-Ar	SC-69-22	"4.72E-04, 0.584E-04, 1.19E-04*"	6.59	8.087	7268			initial age disturbed by later metamorphism		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2975	2	198.21	3	hornblende	conventional K-Ar	SC-69-22	"4.72E-04, 0.584E-04, 1.19E-04*"	0.801	2.416	5647			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2976	1	80.28	1.2	biotite	conventional K-Ar	SC-69-23	"4.72E-04, 0.584E-04, 1.19E-04*"	8.58	10.14	8149			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2977	1	74.17	1.4	biotite	conventional K-Ar	SC-69-24	"4.72E-04, 0.584E-04, 1.19E-04*"	7.27	7.925	77			minimum age of intrusion			
2978	1	70.69	1.4	biotite	conventional K-Ar	SC-69-26	"4.72E-04, 0.584E-04, 1.19E-04*"	8.86	9.196	74			minimum age of intrusion			
2979	1	79	1.1	biotite	conventional K-Ar	SC-69-27	"4.72E-04, 0.584E-04, 1.19E-04*"	8.51	9.894	7165			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2980	1	92.75	2	biotite	conventional K-Ar	SC-69-28	"4.72E-04, 0.584E-04, 1.19E-04*"	2.69	3.686	46			minimum age of intrusion		POTASSIUM VALUE LOW FOR BIOTITE--COMPILER	
2980	2	91.74	1.8	hornblende	conventional K-Ar	SC-69-28	"4.72E-04, 0.584E-04, 1.19E-04*"	1.11	1.504	56			minimum age of intrusion			
2981	1	90.22	1.3	biotite	conventional K-Ar	SC-69-30	"4.72E-04, 0.584E-04, 1.19E-04*"	5.98	7.965	7573			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2981	2	96.91	1.5	hornblende	conventional K-Ar	SC-69-30	"4.72E-04, 0.584E-04, 1.19E-04*"	0.459	0.6579	6025			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	MORTON (1969) AND EVERNDEN AND KISTLER (1970) REPORT SIMILAR DATES IN LAKEVIEW MTNS.
2982	1	88.7	1.3	muscovite	conventional K-Ar	SC-69-33	"4.72E-04, 0.584E-04, 1.19E-04*"	6.56	8.587	7876			"minimum age of intrusion, may denote delayed cooling"		POTASSIUM AND ARGON VALUES ARE AVERAGES; POTASSIUM VALUE LOW FOR MUSCOVITE--COMPILER.	ZONED PEGMATITE WITHIN LAKEVIEW MTNS. PLUTON (QUARTZ DIORITE)
2983	1	94.71	1.8	biotite	conventional K-Ar	SC-69-36	"4.72E-04, 0.584E-04, 1.19E-04*"	7.8	10.92	78			minimum age of intrusion			
2983	2	93.98	1.8	hornblende	conventional K-Ar	SC-69-36	"4.72E-04, 0.584E-04, 1.19E-04*"	0.887	1.232	66			minimum age of intrusion			MORTON (1964) AND EVERNDEN AND KISTLER (1970) REPORT SIMILAR DATES FOR LAKEVIEW MTNS.
2984	1	92.49	1.8	biotite	conventional K-Ar	SC-69-37	"4.72E-04, 0.584E-04, 1.19E-04*"	8.98	12.27	83			minimum age of intrusion			
2984	2	92.62	1.8	biotite	conventional K-Ar	SC-69-37	"4.72E-04, 0.584E-04, 1.19E-04*"	8.5	11.63	91			minimum age of intrusion	LESS PURE BIOTITE		
2985	1	89.7	1.7	biotite	conventional K-Ar	SC-69-39	"4.72E-04, 0.584E-04, 1.19E-04*"	8.98	11.89	89			minimum age of intrusion			
2985	2	91.66	1.8	hornblende	conventional K-Ar	SC-69-39	"4.72E-04, 0.584E-04, 1.19E-04*"	1.21	1.638	57			minimum age of intrusion			
2986	1	89.14	1.3	biotite	conventional K-Ar	SC-69-40	"4.72E-04, 0.584E-04, 1.19E-04*"	9	11.84	8478			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2986	2	86.12	1.7	hornblende	conventional K-Ar	SC-69-40	"4.72E-04, 0.584E-04, 1.19E-04*"	1.76	2.235	70			minimum age of intrusion			
2987	1	81.18	1.1	biotite	conventional K-Ar	SC-69-41	"4.72E-04, 0.584E-04, 1.19E-04*"	8	9.564	7488			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2987	2	85.08	1.2	hornblende	conventional K-Ar	SC-69-41	"4.72E-04, 0.584E-04, 1.19E-04*"	1.64	2.057	7262			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2988	1	85.16	1.7	biotite	conventional K-Ar	SC-69-42	"4.72E-04, 0.584E-04, 1.19E-04*"	8.65	10.86	79			minimum age of intrusion			
2989	1	83.76	1.2	biotite	conventional K-Ar	SC-69-43	"4.72E-04, 0.584E-04, 1.19E-04*"	8.15	10.06	6669			may denote delayed cooling		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2989	2	89.93	1.4	biotite	conventional K-Ar	SC-69-43	"4.72E-04, 0.584E-04, 1.19E-04*"	8.67	11.51	8579			"minimum age of intrusion, may denote delayed cooling"	PURER BIOTITE CONCENTRATE	POTASSIUM AND ARGON VALUES ARE AVERAGES	
2989	3	91.24	1.8	hornblende	conventional K-Ar	SC-69-43	"4.72E-04, 0.584E-04, 1.19E-04*"	1.52	2.048	63			minimum age of intrusion			
2990	1	77.2	1.1	biotite	conventional K-Ar	SC-69-44	"4.72E-04, 0.584E-04, 1.19E-04*"	7.86	8.926	8262			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2991	1	69.99	1	biotite	conventional K-Ar	SC-69-46	"4.72E-04, 0.584E-04, 1.19E-04*"	8.8	9.042	8287			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2992	1	65.21	1	biotite	conventional K-Ar	SC-69-47	"4.72E-04, 0.584E-04, 1.19E-04*"	8.6	8.221	8682			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2992	2	68.16	10	hornblende	conventional K-Ar	SC-69-47	"4.72E-04, 0.584E-04, 1.19E-04*"	2.24	2.24	6363			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2993	1	73.01	1	biotite	conventional K-Ar	SC-69-48	"4.72E-04, 0.584E-04, 1.19E-04*"	7.525	8.072	7667			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2993	2	75.42	1.5	hornblende	conventional K-Ar	SC-69-48	"4.72E-04, 0.584E-04, 1.19E-04*"	2.04	2.262	71			minimum age of intrusion		POTASSIUM VALUE IS AVERAGE OF FOUR ANALYSES	
2994	1	24.9	0.5	biotite	conventional K-Ar	SC-69-49	"4.72E-04, 0.584E-04, 1.19E-04*"	7.32	2.642	52			initial age disturbed by later metamorphism			
2994	2	30.67	0.6	muscovite	conventional K-Ar	SC-69-49	"4.72E-04, 0.584E-04, 1.19E-04*"	7.935	3.534	48			initial age disturbed by later metamorphism			
2995	1	37.74	1.2	hornblende	conventional K-Ar	SC-69-51	"4.72E-04, 0.584E-04, 1.19E-04*"	0.703	0.386	2414			initial age disturbed by later metamorphism		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2995	2	51.76	0.8	muscovite	conventional K-Ar	SC-69-51	"4.72E-04, 0.584E-04, 1.19E-04*"	7.13	5.39	4945			initial age disturbed by later metamorphism		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2996	1	59.49	0.8	muscovite	conventional K-Ar	SC-69-52	"4.72E-04, 0.584E-04, 1.19E-04*"	9.27	8.072	6950			minimum age of metamorphic crystallization		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2997	1	64.24	1.3	biotite	conventional K-Ar	SC-69-53	"4.72E-04, 0.584E-04, 1.19E-04*"	5.905	5.56	70			minimum age of intrusion			
2997	2	62.81	1.2	hornblende	conventional K-Ar	SC-69-53	"4.72E-04, 0.584E-04, 1.19E-04*"	1.44	1.325	76			minimum age of intrusion			
2998	1	55.43	0.8	biotite	conventional K-Ar	SC-69-55A	"4.72E-04, 0.584E-04, 1.19E-04*"	9.23	7.48	6551			minimum age of metamorphic crystallization		POTASSIUM AND ARGON VALUES ARE AVERAGES	
2998	2	22.07	0.5	biotite	conventional K-Ar	SC-69-55B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.03	2.247	4721			age not evaluated	IMPURE BIOTITE CONCENTRATE	POTASSIUM AND ARGON VALUES ARE AVERAGES	
2999	1	54.24	0.8	biotite	conventional K-Ar	SC-69-56	"4.72E-04, 0.584E-04, 1.19E-04*"	8.48	6.722	6171			minimum age of metamorphic crystallization		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3000	1	57.72	0.8	biotite	conventional K-Ar	SC-69-57	"4.72E-04, 0.584E-04, 1.19E-04*"	8.465	7.148	6658			age not evaluated		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3001	1	65.03	1.3	biotite	conventional K-Ar	SC-69-59	"4.72E-04, 0.584E-04, 1.19E-04*"	7.47	7.121	83			minimum age of intrusion			
3002	1	65.98	1.3	biotite	conventional K-Ar	SC-69-60	"4.72E-04, 0.584E-04, 1.19E-04*"	8.32	8.049	78			minimum age of intrusion	-40+60 MESH		
3002	2	64.12	1.3	biotite	conventional K-Ar	SC-69-60	"4.72E-04, 0.584E-04, 1.19E-04*"	9.05	8.505	77			minimum age of intrusion	-60+100 MESH		
3003	1	95.15	1.9	biotite	conventional K-Ar	SC-69-62	"4.72E-04, 0.584E-04, 1.19E-04*"	8.36	11.76	69			minimum age of intrusion			"BISHOP, 1963, REPORTED K-AR DATE OF 98.5 M.Y. FROM NEARBY LOCATION"
3004	1	98.09	1.9	biotite	conventional K-Ar	SC-69-63	"4.72E-04, 0.584E-04, 1.19E-04*"	8	11.61	86			minimum age of intrusion			
3005	1	96	1.9	biotite	conventional K-Ar	SC-69-64	"4.72E-04, 0.584E-04, 1.19E-04*"	7.15	10.15	76			minimum age of intrusion			
3005	2	90.56	1.9	hornblende	conventional K-Ar	SC-69-64	"4.72E-04, 0.584E-04, 1.19E-04*"	1.32	1.765	2837			age not evaluated		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3006	1	65.64	1.3	biotite	conventional K-Ar	SC-69-65	"4.72E-04, 0.584E-04, 1.19E-04*"	7.7	7.411	82			minimum age of intrusion			
3006	2	67.26	0.9	muscovite	conventional K-Ar	SC-69-65	"4.72E-04, 0.584E-04, 1.19E-04*"	8.85	8.732	6086			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3007	1	63.82	1.2	biotite	conventional K-Ar	SC-69-66	"4.72E-04, 0.584E-04, 1.19E-04*"	8.65	8.09	75			"minimum age of intrusion, initial age disturbed by later metamorphism"			
3007	2	66.89	0.9	muscovite	conventional K-Ar	SC-69-66	"4.72E-04, 0.584E-04, 1.19E-04*"	9.34	9.163	6961			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3008	1	70.83	1	biotite	conventional K-Ar	SC-69-67	"4.72E-04, 0.584E-04, 1.19E-04*"	8.1	8.424	8077			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3009	1	54.88	1.5	biotite	conventional K-Ar	SC-69-68	"4.72E-04, 0.584E-04, 1.19E-04*"	6.36	5.102	2332			initial age disturbed by later metamorphism		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3009	2	68.83	1	muscovite	conventional K-Ar	SC-69-68	"4.72E-04, 0.584E-04, 1.19E-04*"	9.92	10.02	7878			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3010	1	68.58	0.9	biotite	conventional K-Ar	SC-69-69	"4.72E-04, 0.584E-04, 1.19E-04*"	5.86	5.897	6385			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3010	2	68.57	0.9	muscovite	conventional K-Ar	SC-69-69	"4.72E-04, 0.584E-04, 1.19E-04*"	9.09	9.147	6261			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3011	1	145.05	3	biotite	conventional K-Ar	SC-69-70	"4.72E-04, 0.584E-04, 1.19E-04*"	6.19	13.46	79			initial age disturbed by later metamorphism			"BISHOP, 1963, REPORTS A U-PB AGE OF 165 M.Y. FOR THIS PLUTON"
3012	1	157.76	2	biotite	conventional K-Ar	SC-69-71	"4.72E-04, 0.584E-04, 1.19E-04*"	7.12	16.9	8580			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	"BISHOP, 1963, REPORTS A U-PB AGE OF 165 M.Y. FOR THIS PLUTON"
3013	1	70.46	1.4	biotite	conventional K-Ar	SC-69-73	"4.72E-04, 0.584E-04, 1.19E-04*"	8.29	8.576	87			minimum age of intrusion			
3014	1	71.95	1	biotite	conventional K-Ar	SC-69-75	"4.72E-04, 0.584E-04, 1.19E-04*"	7.46	7.884	8070			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3015	1	150.95	2	biotite	conventional K-Ar	SC-69-77	"4.72E-04, 0.584E-04, 1.19E-04*"	5.66	12.83	8270			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3016	1	73.58	1.4	biotite	conventional K-Ar	SC-69-78A	"4.72E-04, 0.584E-04, 1.19E-04*"	5.443	5.885	71			minimum age of intrusion	IMPURE BIOTITE CONCENTRATE		
3016	2	70.82	1.4	biotite	conventional K-Ar	SC-69-78B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.77	9.12	81			minimum age of intrusion			
3017	1	137.93	2	biotite	conventional K-Ar	SC-69-79	"4.72E-04, 0.584E-04, 1.19E-04*"	8.16	16.84	8585			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	"HEWITT AND GLASS, 1953, REPORT A U-PB AGE OF 160 M.Y. FOR NEARBY PEGMATITE."
3018	1	138.66	2	biotite	conventional K-Ar	SC-69-80	"4.72E-04, 0.584E-04, 1.19E-04*"	8.93	18.53	8871			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	PB-ALPHA DATE OF 115+/-10 M.Y. ON SAME UNIT 5 KM TO NW
3019	1	19.37	0.3	biotite	conventional K-Ar	SC-69-81	"4.72E-04, 0.584E-04, 1.19E-04*"	8.15	2.285	5046			initial age disturbed by later metamorphism		POTASSIUM AND ARGON VALUES ARE AVERAGES	AGE MAY HAVE BEEN LOWERED BY NEARBY FELSIC DIKES
3020	1	145.65	2	biotite	conventional K-Ar	SC-69-87	"4.72E-04, 0.584E-04, 1.19E-04*"	8.16	17.82	7492			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3021	1	207.89	4	biotite	conventional K-Ar	SC-69-89A	"4.72E-04, 0.584E-04, 1.19E-04*"	3.6	11.42	58			minimum age of intrusion	IMPURE BIOTITE CONCENTRATE	POTASSIUM VALUE IS AVERAGE OF FOUR ANALYSES	
3021	2	208.08	4	biotite	conventional K-Ar	SC-69-89B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.39	20.29	90			minimum age of intrusion			
3021	3	218	3	hornblende	conventional K-Ar	SC-69-89C	"4.72E-04, 0.584E-04, 1.19E-04"		0.596	6461			age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3022	1	62.8	0.9	biotite	conventional K-Ar	SC-69-153	"4.72E-04, 0.584E-04, 1.19E-04*"	9.2	8.464	8077			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3023	1	76.63	1.5	biotite	conventional K-Ar	SC-69-154	"4.72E-04, 0.584E-04, 1.19E-04*"	8.935	10.07	84			"minimum age of intrusion, may denote delayed cooling"			
3024	1	78.85	1.5	biotite	conventional K-Ar	SC-69-155	"4.72E-04, 0.584E-04, 1.19E-04*"	8.85	10.27	81			initial age disturbed by later metamorphism			
3024	2	90.23	1.4	hornblende	conventional K-Ar	SC-69-155	"4.72E-04, 0.584E-04, 1.19E-04*"	0.825	1.099	5266			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3025	1	77.34	1.5	biotite	conventional K-Ar	SC-69-156	"4.72E-04, 0.584E-04, 1.19E-04*"	8.53	9.705	73			initial age disturbed by later metamorphism			
3026	1	80.44	1.6	biotite	conventional K-Ar	SC-69-157	"4.72E-04, 0.584E-04, 1.19E-04*"	8.95	10.6	83			minimum age of intrusion			
3027	1	77.36	1.1	biotite	conventional K-Ar	SC-69-158	"4.72E-04, 0.584E-04, 1.19E-04*"	9.13	10.39	7471			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3028	1	72.7	1	biotite	conventional K-Ar	SC-69-159	"4.72E-04, 0.584E-04, 1.19E-04*"	8.74	9.335	7778			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3028	2	72.19	2	hornblende	conventional K-Ar	SC-69-159	"4.72E-04, 0.584E-04, 1.19E-04*"	0.828	0.878	2226			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3029	1	91.1	1.3	biotite	conventional K-Ar	SC-69-161	"4.72E-04, 0.584E-04, 1.19E-04*"	8.63	11.61	8685			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3030	1	73.13	1	biotite	conventional K-Ar	SC-69-162	"4.72E-04, 0.584E-04, 1.19E-04*"	8.81	9.466	82			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3031	1	76.73	1.5	biotite	conventional K-Ar	SC-69-163	"4.72E-04, 0.584E-04, 1.19E-04*"	8.41	9.491	84			initial age disturbed by later metamorphism	+40-60 MESH	POTASSIUM VALUE IS AVERAGE OF THREE ANALYSES	
3031	2	75.88	1.5	biotite	conventional K-Ar	SC-69-163	"4.72E-04, 0.584E-04, 1.19E-04*"	7.435	8.295	78			initial age disturbed by later metamorphism	-60+100 MESH		
3031	3	93.09	1.3	muscovite	conventional K-Ar	SC-69-163	"4.72E-04, 0.584E-04, 1.19E-04*"	10.15	13.96	7679			minimum age of intrusion		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3032	1	59.56	0.9	muscovite	conventional K-Ar	YAG 757	"4.72E-04, 0.584E-04, 1.19E-04*"	10.71	9.337	8982			age not evaluated		POTASSIUM AND ARGON VALUES ARE AVERAGES	
3033	1	140.63	3	biotite	conventional K-Ar	YAG 758	"4.72E-04, 0.584E-04, 1.19E-04*"	8.52	17.94	89			minimum age of intrusion	6% CHLORITE		
3034	1	148.23	3	biotite	conventional K-Ar	YAG 760	"4.72E-04, 0.584E-04, 1.19E-04*"	7.36	16.37	92			minimum age of intrusion	"6% CHLORITE, 5% HORNBLENDE"		
3035	1	83.51	1.6	biotite	conventional K-Ar	YAG 762	"4.72E-04, 0.584E-04, 1.19E-04*"	8.63	10.62	84			"minimum age of intrusion, initial age disturbed by later metamorphism"	5% CHLORITE		
3036	1	143.91	3	biotite - hornblende	conventional K-Ar	YAG 88	"4.72E-04, 0.584E-04, 1.19E-04*"	3.31	7.139	82			minimum age of intrusion	10% CHLORITE PRESENT		
3037	1	146.14	3	biotite	conventional K-Ar	YAG 178	"4.72E-04, 0.584E-04, 1.19E-04*"	7.52	16.48	92			minimum age of intrusion	7% CHLORITE PRESENT	POTASSIUM AND ARGON VALUES ARE AVERAGES	
3038	1	168.66	6	hornblende	conventional K-Ar	HQM-3	"4.905E-04, 0.575E-04, 1.18E-04*"	0.475	1.209	72			age of intrusion			
3038	2	166.02	6	biotite	conventional K-Ar	HQM-3	"4.905E-04, 0.575E-04, 1.18E-04*"	8.12	20.33	81			minimum age of intrusion			
3039	1	165.21	5	hornblende	conventional K-Ar	JMP-4	"4.905E-04, 0.575E-04, 1.18E-04*"	1.2	2.989	86			age of intrusion			
3039	2	131.76	5	biotite	conventional K-Ar	JMP-4	"4.905E-04, 0.575E-04, 1.18E-04*"	8.44	16.61	86						INITIAL AGE DISTURBED BY YOUNGER PLUTONS
3040	1	139.96	6	biotite	conventional K-Ar	GRB-1	"4.905E-04, 0.575E-04, 1.18E-04*"	8.3	17.39	88			age of intrusion			
3041	1	138.67	5	hornblende	conventional K-Ar	ASM-5	"4.905E-04, 0.575E-04, 1.18E-04*"	1.05	2.179	76			age of intrusion			
3041	2	108.09	4	biotite	conventional K-Ar	ASM-5	"4.905E-04, 0.575E-04, 1.18E-04*"	8.05	12.91	82						AGE MAY BE RELATED TO YOUNGER ALTERATION
3042	1	95.9	3.3	biotite	conventional K-Ar	02313B	"4.72E-04, 0.585E-04, 1.19E-04"		12.83	94			age of intrusion			
3043	1	49.9	1.7	biotite	conventional K-Ar	D2314B	"4.72E-04, 0.585E-04, 1.19E-04"		5.557	94			age of volcanism			
3044	1	92.9	3.3	muscovite	conventional K-Ar	D2340M	"4.72E-04, 0.585E-04, 1.19E-04"		7.616	91				X-RAY DIFFRACTOGRAM SHOWED ONLY MINOR QUARTZ PRESENT IN THE SERICITE	"SODIUM OXIDE CONTENT IS 0.88%, 0.83%"	PROBABLE AGE OF MINERALIZATION
3045	1	1.96	0.06	whole rock	conventional K-Ar	BASALT 75-5-19-3	"4.72E-04, 0.584E-04, 1.19E-04"	3.2		19			age of volcanism	LATITE WHOLE-ROCK	NO ARGON VALUE GIVEN	
3046	1	2.6	0.4	whole rock	conventional K-Ar	BASALT 74-11-12-1	"4.72E-04, 0.585E-04, 1.19E-04"	0.98		14			age of volcanism		NO ARGON VALUE GIVEN	
3047	1	2.78	0.44	whole rock	conventional K-Ar	BASALT 72S6	"4.72E-04, 0.584E-04, 1.19E-04"	0.42		7			age of volcanism		NO ARGON VALUE GIVEN	
3048	1	5.11	0.84	whole rock	conventional K-Ar	BASALT 72S9	"4.72E-04, 0.584E-04, 1.19E-04"	2.03		24			age of volcanism		NO ARGON VALUE GIVEN	
3049	1	0.14	0.04	whole rock	conventional K-Ar	UAKA-75-81	"4.905E-04, 0.575E-04, 1.18E-04*"	0.946	0.002	5			age of volcanism		ARGON VALUE IS AVERAGE OF DUPLICATE RUNS.	
3050	1	2.8	0.12	whole rock	conventional K-Ar	UAKA-75-82	"4.905E-04, 0.575E-04, 1.18E-04*"	1.03	0.0416	25			age of volcanism		ARGON VALUE IS AVERAGE OF DUPLICATE RUNS	
3136	1	31.95	0.9	muscovite	conventional K-Ar	RM-1-66	"4.76E-04, 0.589E-04, 1.18E-04*"	10.6	4.92	85			"age meaning uncertain (geologic factors), initial age disturbed by later metamorphism"	COARSE-GRAINED		
3137	1	2.59	0.09	whole rock	conventional K-Ar	UAKA-75-83	"4.905E-04, 0.575E-04, 1.18E-04*"	0.617	0.023	36			age of volcanism		ARGON VALUE IS AVERAGE OF DUPLICATE RUNS	
3157	1	37		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	THIS AGE MAY BE THE SAME AS QUOTED BY E.F. COOK (1960) (GUIDEBOOK OF EASTERN NEVADA).
3158	1			biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						maximum age of volcanism		NO ANALYTICAL DATA GIVEN	THIS AGE REPORTED AS 23 M.Y. IN SCHILLING (1965)
3159	1	34		Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
3171	1	23		Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	THIS ANALYSIS MADE IN 1962
3172	1	27		Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	THIS ANALYSIS MADE IN 1962
3173	1	1439.57		biotite	conventional K-Ar	YAG-31	"4.72E-04, 0.585E-04, 1.19E-04*"	8.64	274	94			age of metamorphic crystallization	PURE CONCENTRATE	"7.20, 7.14% K; ANALYTICAL ERROR IS +200 AND -70 M.Y."	
3173	2	1300.41		biotite	conventional K-Ar	YAG-31	"4.72E-04, 0.585E-04, 1.19E-04*"	8.64	237	98			age of metamorphic crystallization		"7.20, 7.14% K; ANALYTICAL ERROR IS +200 AND -70 M.Y."	
3174	1	64.47		muscovite	conventional K-Ar	YAG-187	"4.72E-04, 0.585E-04, 1.19E-04*"	9.63	9.1	75			minimum age of intrusion	ALMOST PURE	"8.01, 7.97% K; ANALYTICAL ERROR IS +10 AND -3 M.Y."	A PB-ALPHA AGE OF 225 M.Y. REPORTED BY ADAIR AND STRINGHAM (1960)
3178	1	39.9		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3179	1	16.8	0.5	sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3180	1	85.85	3.5	biotite	conventional K-Ar	AD-7	"4.72E-04, 0.585E-04, 1.19E-04*"	8.69	11	75			age of intrusion	FRESH	REPLICATE POTASSIUM ANALYSES	
3181	1	90.14	1	biotite	conventional K-Ar	AD-4	"4.72E-04, 0.585E-04, 1.19E-04*"	7.74	10.3	67			age of intrusion	FRESH	REPLICATE ANALYSES OF POTASSIUM AND ARGON	
3182	1	32.33	3	biotite	conventional K-Ar	AD-2	"4.72E-04, 0.585E-04, 1.19E-04*"	3.3	1.55	7783			minimum age of intrusion	PARTIALLY ALTERED TO CHLORITE	REPLICATE ANALYSES OF POTASSIUM AND ARGON	
3183	1	67.35	4	biotite	conventional K-Ar	AD-6	"4.72E-04, 0.585E-04, 1.19E-04*"	6.68	6.6	947			minimum age of intrusion	SLIGHTLY ALTERED	REPLICATE ANALYSES OF POTASSIUM AND ARGON	
3184	1	77.92	2	biotite	conventional K-Ar	AD-3	"4.72E-04, 0.585E-04, 1.19E-04*"	3.21	3.68	6162			age of intrusion	FRESH	REPLICATE ANALYSES OF POTASSIUM AND ARGON	
3185	1	81.7	2	biotite	conventional K-Ar	AD-1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.59	7.93	5056			age of intrusion	FRESH	REPLICATE ANALYSES OF POTASSIUM AND ARGON	
3186	1	12	2	biotite	conventional K-Ar	19	"4.72E-04, 0.583E-04"						minimum age of intrusion		NO ANALYTICAL DATA GIVEN; ANALYTICAL ERROR LISTED AS 20 M.Y.--THIS SHOULD PROBABLY BE 2.0 M.Y.--COMPILER	
3188	1	70.54	1.8	biotite	conventional K-Ar	58(AD-8)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.74	6.98	54			age of intrusion			
3189	1	152.45	3	biotite	conventional K-Ar	67	"4.72E-04, 0.585E-04, 1.19E-04*"	7.03	16.1	86			age of intrusion	"GREATER THAN 50 MESH, TITANOBIOTITE"		
3190	1	123	12	orthoclase	conventional K-Ar	77	"4.72E-04, 0.583E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3191	1	41	5	Unk	conventional K-Ar	79	"4.72E-04, 0.583E-04"								NO ANALYTICAL DATA GIVEN	A RECONNAISSANCE AGE; LITTLE INFORMATION GIVEN ABOUT THE SAMPLE
3192	1	90.4	1	biotite	conventional K-Ar	90	"4.72E-04, 0.583E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3193	1	35.2	1	biotite	conventional K-Ar	93	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	"-40+80 MESH, OVER 95% PURE"	NO ANALYTICAL DATA GIVEN	"THIS AGE CITED BY AXELROD (1964) AS ""ABOUT 36 M.Y. "" ON PAGE 77."
3194	1	39	1	biotite	conventional K-Ar	94A	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	-20+80 MESH	NO ANALYTICAL DATA GIVEN	
3194	2	40	1	sanidine	conventional K-Ar	94B	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism	-20+80 MESH	NO ANALYTICAL DATA GIVEN	
3195	1	28.13	2	biotite	conventional K-Ar	1-SW193	"4.72E-04, 0.584E-04, 1.19E-04*"	8.33	3.4	69			age of intrusion	99% BIOTITE; +80 MESH GRAIN SIZE	REPLICATE ANALYSES; ANALYTICAL DATA NOT PUBLISHED	
3196	1	151		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3197	1	32.26		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.56	4.48	59		McKee and others (1971)	age of volcanism			"ANALYTICAL DATA FROM MCKEE AND OTHERS, 1971, ISOCHRON/WEST, P. 41, NO. 143"
3198	1	37.72		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8	4.39	69		McKee and others (1971)	age of volcanism			"ANALYTICAL DATA OBTAINED FROM MCKEE AND OTHERS, 1971, P. 41, NO. 144"
3199	1	1384.46	140	muscovite	conventional K-Ar	(NOT GIVEN)	no decay constants given*	8.94	268				minimum age of intrusion		ANALYTICAL DATA NOT PUBLISHED	
3200	1	13.6	0.5	whole rock	conventional K-Ar	PED-10-65	"4.76E-04, 0.589E-04, 1.21E-04*"	2.2	0.431	70			age of volcanism			
3201	1	32.26	3	biotite	conventional K-Ar	63W192	"4.72E-04, 0.585E-04, 1.19E-04*"	7.32	3.43	82			age of intrusion			
3202	1	37.1	4	biotite	conventional K-Ar	63W193	"4.72E-04, 0.585E-04, 1.19E-04*"	7.93	4.28	81			age of intrusion			
3203	1	29.63	3	biotite	conventional K-Ar	63W194	"4.72E-04, 0.585E-04, 1.19E-04*"	8.72	3.75	72			age of intrusion			
3204	1	31.59	3	biotite	conventional K-Ar	63W195	"4.72E-04, 0.585E-04, 1.19E-04*"	9.22	4.23	78			age of intrusion			
3208	1	39.16	4	biotite	conventional K-Ar	60D414	"4.72E-04, 0.585E-04, 1.19E-04*"	9.08	5.175	85			age of volcanism		"ANALYTICAL DATA IS FROM MCKEE AND MARVIN, 1976."	
3209	1	37.21	4	biotite	conventional K-Ar	59D320	"4.72E-04, 0.585E-04, 1.19E-04*"	5.45	2.95	86			age of volcanism		"ANALYTICAL DATA TAKEN FROM MCKEE AND MARVIN, 1976."	
3211	1	13.41	0.5	glass	conventional K-Ar	D-1053G	"4.72E-04, 0.585E-04, 1.19E-04*"	4.66	0.9029	93			age of volcanism	NONHYDRATED GLASS		
3212	1	14.13	0.5	glass	conventional K-Ar	D-1048G	"4.72E-04, 0.585E-04, 1.19E-04*"	4.54	0.9272	69			age of volcanism	NONHYDRATED GLASS		
3213	1	15.17	0.6	sanidine	conventional K-Ar	D-1051S	"4.72E-04, 0.585E-04, 1.19E-04*"	7.87	1.726	95			age of volcanism			
3214	1	14.36	0.6	sanidine	conventional K-Ar	D-1052S	"4.72E-04, 0.584E-04, 1.19E-04*"	6.93	1.438	89			age of volcanism			
3215	1	19.5	0.6	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3216	1	50.6	1.5	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3217	1	42.1	1.3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3218	1	83	4	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of intrusion		NO ANALYTICAL DATA GIVEN	
3219	1	6.2	0.2	sanidine	conventional K-Ar	N80A-S	"4.72E-04, 0.584E-04, 1.19E-04"	6.19		77			age of volcanism			
3220	1	7.5	0.2	sanidine	conventional K-Ar	AGE 11-S	"4.72E-04, 0.584E-04, 1.19E-04"	6.61		75			age of volcanism			"AGE (ONLY THE AGE) ALSO PUBLISHED BY NOBLE, ANDERSON, AND O'CONNOR, 1964, U.S. GEOL. SURVEY PROF. PAPER 475-D, P. D25"
3221	1	9.4	2	biotite	conventional K-Ar	AGE 19-B	"4.72E-04, 0.584E-04, 1.19E-04"	8.15		11			age of volcanism			
3221	2	9.6	0.3	sanidine	conventional K-Ar	AGE 19-S	"4.72E-04, 0.584E-04, 1.19E-04"	6.21		85			age of volcanism			
3222	1	10.9	0.4	biotite	conventional K-Ar	AGE 17-B	"4.72E-04, 0.584E-04, 1.19E-04"	8.02		64			age of volcanism			
3223	1	10.8	0.3	sanidine	conventional K-Ar	AGE 16-S	"4.72E-04, 0.584E-04, 1.19E-04"	5.9		70			age of volcanism	-80+100 MESH		
3223	2	10.8	0.5	sanidine	conventional K-Ar	AGE 16-S	"4.72E-04, 0.584E-04, 1.19E-04"	7.18		40			age of volcanism	-60+80 MESH		
3224	1	11.2	0.5	biotite	conventional K-Ar	AGE 12-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.56		43			age of volcanism			
3225	1	11.4	0.5	biotite	conventional K-Ar	AGE 20-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.93		43			age of volcanism			
3226	1	12.1	0.5	biotite	conventional K-Ar	AGE 5-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.43		56			age of volcanism		6.19% AND 6.15% K	
3227	1	11	0.4	biotite	conventional K-Ar	AGE 18-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.77		57			age of volcanism			
3227	2	11.2	0.3	sanidine	conventional K-Ar	AGE 18-S	"4.72E-04, 0.584E-04, 1.19E-04"	6.84		78			age of volcanism			
3228	1	10.5	0.3	sanidine	conventional K-Ar	WJC 138-S	"4.72E-04, 0.584E-04, 1.19E-04"	6.71		71			age of volcanism			
3229	1	10.8	0.5	biotite	conventional K-Ar	AGE 7-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.6		45			age of volcanism			
3229	2	10.9	0.5	biotite	conventional K-Ar	AGE 7-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.6		44			age of volcanism			"AGE (ONLY THE AGE) ALSO PUBLISHED BY LUFT, 1964, U.S. GEOL. SURVEY PROF. PAPER 501-D, P. D15"
3229	3	10.6	0.3	sanidine	conventional K-Ar	AGE 7-S	"4.72E-04, 0.584E-04, 1.19E-04"	6.41		66			age of volcanism			
3229	4	10.9	0.4	sanidine	conventional K-Ar	AGE 7-S	"4.72E-04, 0.584E-04, 1.19E-04"	6.41		68			age of volcanism			"AGE (ONLY THE AGE) ALSO PUBLISHED BY LUFT, 1964, U.S. GEOL. SURVEY PROF. PAPER 501-D, P. D15"
3230	1	11.1	0.3	sanidine	conventional K-Ar	AGE 22-S	"4.72E-04, 0.584E-04, 1.19E-04"	7.19		75			age of volcanism			
3231	1	11.7	0.4	biotite	conventional K-Ar	AGE 23-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.6		51			age of volcanism			
3231	2	11.1	0.3	sanidine	conventional K-Ar	AGE 23-S	"4.72E-04, 0.584E-04, 1.19E-04"	5.86		70			age of volcanism	-100+115 MESH		
3231	3	11.4	0.4	sanidine	conventional K-Ar	AGE 23-S	"4.72E-04, 0.584E-04, 1.19E-04"	6.01		74			age of volcanism	-80+100 MESH		
3232	1	10.4	0.3	sanidine	conventional K-Ar	AGE 15-S	"4.72E-04, 0.584E-04, 1.19E-04"	9.12		91			age of volcanism			
3233	1	11.3	0.4	biotite	conventional K-Ar	MC-336-B	"4.72E-04, 0.584E-04, 1.19E-04"	8.81		64			age of volcanism			
3234	1	12.4	0.5	biotite	conventional K-Ar	AGE 4-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.64		55			age of volcanism			
3235	1	12.4	0.4	biotite	conventional K-Ar	BC-308-B	"4.72E-04, 0.584E-04, 1.19E-04"	8.15		64			age of volcanism			
3236	1	13.2	0.4	biotite	conventional K-Ar	AGE 2A-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.62		65			age of volcanism			"AGE (ONLY THE AGE) ALSO PUBLISHED BY LIPMAN, CHRISTIANSEN, AND O'CONNOR, 1966, U.S. GEOL. SURVEY PROF. PAPER 524-F, P. F3"
3237	1	12.5	0.4	biotite	conventional K-Ar	AGE 9-B	"4.72E-04, 0.584E-04, 1.19E-04"	5.21		63			age of volcanism			
3238	1	12.9	0.4	biotite	conventional K-Ar	AGE 8-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.65		69			age of volcanism			
3239	1	13.4	0.4	biotite	conventional K-Ar	AGE 3-B	"4.72E-04, 0.584E-04, 1.19E-04"	7.64		68			age of volcanism			
3240	1	13.6	0.4	sanidine	conventional K-Ar	AGE 13-S	"4.72E-04, 0.584E-04, 1.19E-04"	9.15		77			age of volcanism			
3241	1	16.1	0.4	biotite	conventional K-Ar	AGE 6-B	"4.72E-04, 0.584E-04, 1.19E-04"	8.09		76			age of volcanism			
3242	1	15	0.6	biotite	conventional K-Ar	AGE 24-B	"4.72E-04, 0.584E-04, 1.19E-04"	6.76		50			age of volcanism			
3243	1	17.8	0.5	biotite	conventional K-Ar	AGE 25-B	"4.72E-04, 0.584E-04, 1.19E-04"	8.58		88			age of volcanism			
3244	1	21.1	0.6	biotite	conventional K-Ar	438-6-B	"4.72E-04, 0.584E-04, 1.19E-04"	8.15		71			age of volcanism			
3244	2	21.9	0.4	sanidine	conventional K-Ar	438-6-S	"4.72E-04, 0.584E-04, 1.19E-04"	10.6		95			age of volcanism			
3245	1	25.3	0.7	biotite	conventional K-Ar	163-3-B	"4.72E-04, 0.584E-04, 1.19E-04"	8.24		75			age of volcanism			
3246	1	26.1	0.7	biotite	conventional K-Ar	AGE 26-B	"4.72E-04, 0.584E-04, 1.19E-04"	8.6		85			age of volcanism			
3247	1	124.23	5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.38	8.11	7886			age of intrusion		REPLICATE ANALYSES OF POTASSIUM AND ARGON	
3248	1	11.2	1.1	whole rock	conventional K-Ar	PED-5-66	"4.78E-04, 0.588E-04, 1.21E-04*"	8.93	1.44	19			age of intrusion			
3249	1	28.5		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
3250	1	27		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
3251	1	12.2	0.8	sanidine	conventional K-Ar	62NC51	"4.72E-04, 0.584E-04, 1.19E-04"	5.26		31			age of volcanism		AR40/K40 = 7.13 E-4	
3252	1	11.6	0.5	sanidine	conventional K-Ar	61NC119	"4.72E-04, 0.584E-04, 1.19E-04"	8.95		78			age of volcanism		AR40/K40 = 6.79 E-4	
3253	1	31.66	1.6	biotite	conventional K-Ar	60-W-71	"4.76E-04, 0.589E-04, 1.18E-04*"	6.96	3.2	62			age of volcanism		"UNPUBLISHED ANALYTICAL DATA FROM R.F. MARVIN, USGS"	UNPUBLISHED PB-ALPHA AGE OF 50+/-15 M.Y. WAS MADE ON ZIRCONS FROM THIS SAMPLE.  THE AGE IS TOO OLD.
3254	1	34		Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3255	1	34		Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3256	1	155.36	0.05	whole rock	conventional K-Ar	KA 1209	no decay constants given*	0.905	2.114	23			age of volcanism			"THE ANALYTICAL DATA TAKEN FROM MCKEE AND MARVIN, 1974"
3257	1	165	5	hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given	0.47		42			age of intrusion	32-80 MESH; 2% ACTINOLITE CONTAMINANT	"UNPUBLISHED ANALYTICAL DATA FROM FILES OF J.H. SCHILLING, NEVADA BUREAU OF MINES"	
3257	2	145	5	biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given	5.15		72			minimum age of intrusion	"32-80 MESH, 1% CHLORITE CONTAMINANT"	"UNPUBLISHED ANALYTICAL DATA FROM THE FILES OF J.H. SCHILLING, NEVADA BUREAU OF MINES"	
3258	1	150		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	
3259	1	22.73	0.9	sanidine	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.17	2.69	67			age of volcanism			
3260	1	23.36	0.9	sanidine	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.77	2.63	54			age of volcanism			
3261	1	24.32	1	sanidine	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	10.47	3.69	84			age of volcanism			
3262	1	25.06	1	sanidine	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	11.7	4.25	87			age of volcanism			
3263	1	25.74	1	sanidine	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	11.36	4.24	81			age of volcanism			
3264	1	31.38	1.2	biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	7.68	3.5	71			age of volcanism			
3265	1	89.33	2.6	biotite	conventional K-Ar	AD-9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.95	11.8				age of intrusion		REPLICATE ANALYSES OF POTASSIUM AND TRIPLICATE ANALYSES OF ARGON	
3266	1	32.3	1.2	biotite	conventional K-Ar	AD-10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.46	3.97	5661			age of volcanism		REPLICATE ANALYSES OF POTASSIUM AND ARGON	
3267	1	13.26	0.8	plagioclase	conventional K-Ar	AD-12	"4.72E-04, 0.585E-04, 1.19E-04*"	0.741	0.142	4555			age of volcanism		REPLICATE ANALYSES OF POTASSIUM AND ARGON	
3268	1	13.02	0.6	adularia	conventional K-Ar	AD-14	"4.72E-04, 0.585E-04, 1.19E-04*"	2.19	0.412	2839				SOME QUARTZ PRESENT	REPLICATE ANALYSES OF POTASSIUM AND ARGON	APPARENT AGE OF MINERALIZATION
3269	1	14.71	1.5	whole rock	conventional K-Ar	AD-15	"4.72E-04, 0.585E-04, 1.19E-04*"	1.274	0.271	4946			age of volcanism		REPLICATE ANALYSES OF ARGON	
3270	1	15.5	2.4	plagioclase	conventional K-Ar	AD-16	"4.72E-04, 0.585E-04, 1.19E-04*"	0.345	0.0776	55			age of volcanism		REPLICATE ANALYSES OF POTASSIUM	
3271	1	71	3	biotite		(NOT GIVEN)	no decay constants given						age of intrusion		"NO ANALYTICAL DATA GIVEN.  THIS AGE IS REPORTED TO HAVE BEEN DETERMINED BY MARVIN, MEHNERT, AND MOUNTJOY, BUT MARVIN REPORTS HE HAS NO RECORD OF THIS AGE."	
3272	1	79.6	2	biotite		(NOT GIVEN)	no decay constants given						minimum age of intrusion		NO ANALYTICAL DATA GIVEN	
3273	1	76	2	biotite		(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	
3274	1	15.55	0.5	glass	conventional K-Ar	NN-21B-NG	"4.72E-04, 0.585E-04, 1.19E-04*"	4.52	1.016	80			age of volcanism	NONHYDRATED		
3275	1	15.78	0.5	glass	conventional K-Ar	N-13A-NG	"4.72E-04, 0.585E-04, 1.19E-04*"	4.55	1.038	66			age of volcanism	NONHYDRATED		"RB-SR AGE OF 15 M.Y. OBTAINED FOR THIS SAMPLE BY NOBLE AND OTHERS, 1973"
3276	1	15.15	0.5	sanidine	conventional K-Ar	NR-11-S	"4.72E-04, 0.585E-04, 1.19E-04*"	7.54	1.651	13			age of volcanism			
3277	1	15.5	0.5	sanidine	conventional K-Ar	N-25-S	"4.72E-04, 0.585E-04, 1.19E-04*"	5.64	1.264	72			age of volcanism			
3278	1	16.06	0.5	sanidine	conventional K-Ar	N-42-S	"4.72E-04, 0.585E-04, 1.19E-04*"	6.88	1.598	53			age of volcanism			"RB-SR AGE OF 15.9 M.Y. OBTAINED FOR THIS SAMPLE BY NOBLE AND OTHERS, 1973"
3279	1	25.95	0.9	sanidine	conventional K-Ar	N9-150-S	"4.72E-04, 0.585E-04, 1.19E-04*"	5.84	2.198	60			age of volcanism			
3279	2	24.27	0.7	sanidine	conventional K-Ar	N9-150-S	"4.72E-04, 0.585E-04, 1.19E-04*"	5.84	2.054	54			age of volcanism			
3280	1	24.5	0.7	sanidine	conventional K-Ar	N-SL-C3-S	"4.72E-04, 0.585E-04, 1.19E-04*"	5.96	2.117	51			age of volcanism			"RB-SR AGE OF 24.5 M.Y. OBTAINED FOR THIS SAMPLE BY NOBLE AND OTHERS, 1973"
3281	1	24.79	1	sanidine	conventional K-Ar	18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.18	2.94	94			age of volcanism			
3282	1	32.78	1.1	biotite	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	8.23	3.92	48			age of volcanism			AVERAGE OF 5 ZIRCON AGES IS 34.1 M.Y.; AVERAGE OF 20 FISSION-TRACK AGES IS 34.9 M.Y. FOR CAETANO TUFF
3293	1	35.23		biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	4.22	80			age of intrusion		REPLICATE POTASSIUM ANALYSES	
3293	2	36.14		biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	4.33	81			age of intrusion		REPEAT AR ANALYSIS	
3293	3	35.57		sanidine	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	11.6	6	97			age of intrusion		REPLICATE POTASSIUM ANALYSES	
3294	1	38.23		biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.79	4.89	78			age of intrusion		POTASSIUM VALUE IS AVERAGE OF 3 ANALYSES	
3294	2	38.08		biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.79	4.87	55			age of intrusion		REPEAT AR ANALYSIS	
3295	1	38.11		biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	7.99	4.43	81			age of intrusion		REPLICATE POTASSIUM ANALYSES	
3295	2	38.45		biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	7.99	4.47	83			age of intrusion		REPEAT AR ANALYSIS	
3295	3	38.92		hornblende	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	1.077	0.61	71			age of intrusion		POTASSIUM VALUE IS AVERAGE OF 8 ANALYSES	
3296	1	35.97		biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	7.61	3.98	71			age of intrusion		REPLICATE POTASSIUM ANALYSES	
3297	1	39.23		biotite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	7.6	4.34	63			age of intrusion		POTASSIUM VALUE IS AVERAGE OF 4 ANALYSES	
3297	2	37.51		hornblende	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.953	0.52	55			age of intrusion		POTASSIUM VALUE IS AVERAGE OF 4 ANALYSES	
3298	1	37.92		biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	7.25	4	38			age of intrusion		REPLICATE POTASSIUM ANALYSES	
3298	2	37		hornblende	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	0.892	0.48	63			age of intrusion		POTASSIUM VALUE IS AVERAGE OF 4 ANALYSES	
3299	1	14.16		sanidine	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	9.77	2	76			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3300	1	14.25		sanidine	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	10.1	2.08	74			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3301	1	34.8		biotite	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.4	4.26	79			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3302	1	34.28		biotite	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.65	4.31	64			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3302	2	31.95		sanidine	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	12.13	5.63	90			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3303	1	32.07		biotite	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	8.35	3.89	74			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3303	2	31.68		sanidine	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	11.78	5.42	72			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3304	1	34.32		biotite	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	8.38	4.18	86			age of volcanism		REPLICATE POTASSIUM ANALYSES	"AGE ALSO LISTED IN USGS MAP GQ-730 BY STEWART AND MCKEE, 1968"
3305	1	25.12		sanidine	conventional K-Ar	13	"4.72E-04, 0.585E-04, 1.19E-04*"	8.95	3.26	77			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3306	1	24.14		sanidine	conventional K-Ar	14	"4.72E-04, 0.585E-04, 1.19E-04*"	9.46	3.31	74			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3307	1	24.99	1	sanidine	conventional K-Ar	15	"4.72E-04, 0.585E-04, 1.19E-04*"	9.19	3.33	94			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3308	1	25.39		sanidine	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	10.05	3.7	96			age of volcanism		REPLICATE POTASSIUM ANALYSES	"AGE ALSO LISTED IN USGS MAP GQ-730 BY STEWART AND MCKEE, 1968"
3309	1	24.79		sanidine	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	8.18	2.94	94			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3310	1	31.85		biotite	conventional K-Ar	18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	3.83	91			age of volcanism		REPLICATE POTASSIUM ANALYSES	"AGE ALSO LISTED IN USGS MAP GQ-770 BY MCKEE, 1968"
3311	1	34.86		biotite	conventional K-Ar	19	"4.72E-04, 0.585E-04, 1.19E-04*"	8.11	4.11	91			age of volcanism		REPLICATE POTASSIUM ANALYSES	"AGE ALSO LISTED IN USGS MAP GQ-730 BY STEWART AND MCKEE, 1968"
3312	1	36.35		hornblende	conventional K-Ar	20	"4.72E-04, 0.585E-04, 1.19E-04*"	0.927	0.49	71			age of volcanism		REPLICATE POTASSIUM ANALYSES	"AGE ALSO LISTED IN USGS MAP GQ-770 BY MCKEE, 1968"
3313	1	35.34		biotite	conventional K-Ar	21	"4.72E-04, 0.585E-04, 1.19E-04*"	6.5	3.34	76			age of volcanism			
3314	1	10.19		whole rock	conventional K-Ar	22	"4.72E-04, 0.585E-04, 1.19E-04*"	0.306	0.045	7			age of volcanism			
3315	1	15.2		whole rock	conventional K-Ar	23	"4.72E-04, 0.585E-04, 1.19E-04*"	0.733	0.16	36			age of volcanism			
3316	1	16.8		whole rock	conventional K-Ar	24	"4.72E-04, 0.585E-04, 1.19E-04*"	1.575	0.38	43			age of volcanism			
3317	1	30.17		biotite	conventional K-Ar	25	"4.72E-04, 0.585E-04, 1.19E-04*"	7.9	3.46	68			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3318	1	27.02		biotite	conventional K-Ar	26	"4.72E-04, 0.585E-04, 1.19E-04*"	4.67	1.83	67			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3319	1	28.74		biotite	conventional K-Ar	27	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	3.52	38			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3320	1	7.97	0.6	glass	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	4.33	0.498	16			age of volcanism	NONHYDRATED GLASS		
3320	2	9.73	0.7	glass	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	4.33	0.608	17				NONHYDRATED GLASS		APPEARS INCORRECT IN COMPARISON WITH AGES OF ADJACENT UNITS
3321	1	11.41	0.3	sanidine	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	10.13	1.67	93			age of volcanism	-100 MESH		
3321	2	11.56	0.3	sanidine	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	10.065	1.68	96			age of volcanism	+100 MESH		
3322	1	13	0.6	biotite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.61	1.429	61			age of volcanism			
3322	2	12.82	0.6	K feldspar	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	6.82	1.263	77			age of volcanism			
3323	1	13.01	1.1	K feldspar	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	5.99	1.126	41			age of volcanism			
3323	2	11.57	1.1	K feldspar	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	5.99	1.001	37						"THIS AGE APPEARS INCORRECT IN COMPARISON WITH OTHER RADIOMETRIC AGES FOR THE PAINTBRUSH TUFF, TIVA CANYON MEMBER."
3324	1	12.35	0.4	biotite	conventional K-Ar	4A(011-101-1)	"4.72E-04, 0.584E-04, 1.19E-04*"	7.62	1.359	4341			age of volcanism		ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
3324	2	13.3	0.3	K feldspar	conventional K-Ar	4A(011-101-1)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.13	1.562	8379			age of volcanism		ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
3325	1	13.57	0.4	biotite	conventional K-Ar	4A(011-101-2)	"4.72E-04, 0.584E-04, 1.19E-04*"	7.55	1.481	4749			age of volcanism		ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
3325	2	13.12	0.4	K feldspar	conventional K-Ar	4A(011-101-2)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.57	1.625	7984			age of volcanism		ARGON VALUE IS AVERAGE OF REPLICATE ANALYSES	
3326	1	14.12	0.4	biotite	conventional K-Ar	9(0B3)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.295	1.693	76			age of volcanism			
3326	2	14.45	0.4	biotite	conventional K-Ar	9(0B3)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.295	1.732	73			age of volcanism			
3327	1	13.42	0.4	biotite	conventional K-Ar	9(0B3A)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.38	1.625	80			age of volcanism			
3327	2	13.18	0.4	biotite	conventional K-Ar	9(0B3A)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.38	1.596	70			age of volcanism			
3328	1	16.08	0.6	sanidine	conventional K-Ar	9A	"4.72E-04, 0.584E-04, 1.19E-04*"	9.57	2.226	92			age of volcanism		REPLICATE POTASSIUM ANALYSES	
3329	1	15.97	0.5	sanidine	conventional K-Ar	10	"4.72E-04, 0.584E-04, 1.19E-04*"	12.255	2.831	94			age of volcanism			
3329	2	16.82	0.5	sanidine	conventional K-Ar	10	"4.72E-04, 0.584E-04, 1.19E-04*"	12.255	2.982	95			age of volcanism			
3330	1	19.16	0.7	biotite	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.19E-04*"	6.85	1.9	75			age of volcanism			
3330	2	17.58	0.7	biotite	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.19E-04*"	6.85	1.742	69			age of volcanism			
3331	1	23.39	0.7	sanidine	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	11	3.729	98			age of volcanism			
3331	2	22.17	0.7	sanidine	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	11	3.533	92			age of volcanism			
3332	1	24.02	0.7	sanidine	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	11.25	3.917	94			age of volcanism			
3332	2	24.35	1.1	biotite	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	7.77	2.742	69			age of volcanism			
3333	1	25.01	0.7	sanidine	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	11.09	4.021	95			age of volcanism			
3333	2	25.79	1.2	biotite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	8.26	3.089	73			age of volcanism			
3334	1	28.35	1.2	K feldspar	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.19E-04*"	6	2.468	92			age of volcanism			
3334	2	26.85	1.2	biotite	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.19E-04*"	8.33	3.244	78			age of volcanism		POTASSIUM VALUE IS AVERAGE OF 4 ANALYSES	
3335	1	28.23	0.8	biotite	conventional K-Ar	16	"4.72E-04, 0.584E-04, 1.19E-04*"	8.435	3.455	86			age of volcanism			
3335	2	27.89	0.8	biotite	conventional K-Ar	16	"4.72E-04, 0.584E-04, 1.19E-04*"	8.435	3.413	84			age of volcanism			"THE RESULTS OF THESE SAME ANALYSES ARE REPORTED AS 27.5+/-0.8 M.Y. IN EKREN AND OTHERS, 1977"
3336	1	29.01	1.3	biotite	conventional K-Ar	17(TNR-4-1)	"4.72E-04, 0.584E-04, 1.19E-04*"	7.82	3.292	71			age of volcanism			
3337	1	29.01	1.3	biotite	conventional K-Ar	17(TNR-1)	"4.72E-04, 0.584E-04, 1.19E-04*"	7.82	3.292	71			age of volcanism			
3337	2	31.6	1.4	biotite	conventional K-Ar	17(TNR-1)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.12	3.727	79			age of volcanism			
3338	1	31.49	1.4	biotite	conventional K-Ar	18(NS-2-4)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.58	3.924	80			age of volcanism			
3339	1	30.56	1.4	biotite	conventional K-Ar	18(NS-2-1)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.45	3.749	74			age of volcanism			
3340	1	30.09	1.4	biotite	conventional K-Ar	19	"4.72E-04, 0.584E-04, 1.19E-04*"	7.7	3.364	70			age of volcanism			
3341	1	93.88	3.3	biotite	conventional K-Ar	20	"4.72E-04, 0.584E-04, 1.19E-04*"	8.88	12.32	92			age of intrusion			
3344	1	99.53	5	biotite	conventional K-Ar	21	"4.72E-04, 0.584E-04, 1.19E-04*"	8.58	12.64	94			age of intrusion			AVERAGE OF SIX K-AR AGES IS 93 M.Y.
3345	1	97.47	5	biotite	conventional K-Ar	22	"4.72E-04, 0.584E-04, 1.19E-04*"	8.26	11.91	91			age of intrusion			AVERAGE OF SIX K-AR AGES IS 93 M.Y.
3346	1	90.75	4	biotite	conventional K-Ar	23	"4.72E-04, 0.584E-04, 1.19E-04*"	8.03	10.76	87			minimum age of intrusion			AVERAGE OF SIX K-AR AGES IS 93 M.Y.
3347	1	93.05	5	biotite	conventional K-Ar	24	"4.72E-04, 0.584E-04, 1.19E-04*"	8.86	12.18	91			age of intrusion			AVERAGE OF SIX K-AR AGES IS 93 M.Y.
3348	1	93	5	biotite	conventional K-Ar	25	"4.72E-04, 0.584E-04, 1.19E-04*"	8.45	11.61	90			age of intrusion			AVERAGE OF SIX K-AR AGES IS 93 M.Y.
3349	1	96.6	5	biotite	conventional K-Ar	26	"4.72E-04, 0.584E-04, 1.19E-04*"	6.97	9.958	85			age of intrusion			AVERAGE OF SIX K-AR AGES IS 93 M.Y.
3350	1	75.21	4	biotite	conventional K-Ar	16-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	8.89	9.83	91				-150 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3350	2	80.36	4	muscovite	conventional K-Ar	16-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	8.14	9.63	96				-150 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3351	1	96.71	4.2	biotite	conventional K-Ar	27-DL-61	"4.72E-04, 0.585E-04, 1.19E-04*"	9.48	13.56	93				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3351	2	101.58	4.2	biotite	conventional K-Ar	27-DL-61	"4.72E-04, 0.585E-04, 1.19E-04*"	9.14	13.75	95				-80+100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3351	3	159.09	5	hornblende	conventional K-Ar	27-DL-61	"4.72E-04, 0.585E-04, 1.19E-04*"	0.73	1.748	86			age of metamorphic crystallization	-100 MESH		
3352	1	43.36	1.4	microcline	conventional K-Ar	40A-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	14.7	9.287	89				-150 MESH		"REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS.  U-TH-PB AGES OF 153, 162, AND 175 M.Y. REPORTED FOR THIS SAMPLE BY LEE AND OTHERS (1968)"
3352	2	72.88	3.1	biotite	conventional K-Ar	40A-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	8.89	9.519	87						"REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS.  U-TH-PB AGES OF 153, 162, AND 175 M.Y. REPORTED FOR THIS SAMPLE BY LEE AND OTHERS (1968)"
3353	1	83.64	3.4	biotite	conventional K-Ar	40B-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	9.59	11.82	94				-60+150 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3353	2	85.98	3.5	biotite	conventional K-Ar	40B-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	8.66	10.98	90				+60 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3354	1	120.88	5	biotite	conventional K-Ar	22-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	8	14.4	98				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3354	2	143.17	6	muscovite	conventional K-Ar	22-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	9.5	20.38	96			minimum age of intrusion	-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3355	1	142.89	5	muscovite	conventional K-Ar	389-DL-67	"4.72E-04, 0.585E-04, 1.19E-04*"	9.3	19.91	90			minimum age of intrusion	+60 MESH		AGE OF MINERALIZATION(?) OR A REDUCED AGE DUE TO THERMAL STRESS DURING THRUST FAULTING
3356	1	73.86	2.2	muscovite	conventional K-Ar	396-DL-67	"4.72E-04, 0.585E-04, 1.19E-04*"	10.88	11.81	94				+60 MESH		MINIMUM AGE OF MINERALIZATION OR REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3357	1	133.45	6	muscovite	conventional K-Ar	62-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	10.08	20.1	98			minimum age of intrusion	-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3358	1	145.23	4	muscovite	conventional K-Ar	195-DL-62	"4.72E-04, 0.585E-04, 1.19E-04*"	10.38	22.6	94				-50+100 MESH		MINIMUM AGE OF MINERALIZATION.  REDUCED AGE DUE TO LOSS OF ARGON DURING THERMAL STRESS DUE TO THRUST FAULTING
3359	1	159.27	6	muscovite	conventional K-Ar	392-DL-67	"4.72E-04, 0.585E-04, 1.19E-04*"	9.44	22.63	90				+60 MESH		AGE OF MINERALIZATION OR A REDUCED AGE DUE TO LOSS OF ARGON DURING THERMAL STRESS DUE TO THRUST FAULTING
3360	1	96.59	5	biotite	conventional K-Ar	71-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	9.03	12.9	89				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3361	1	31.7	2	muscovite	conventional K-Ar	121-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	10.1	4.65	82			minimum age of intrusion	-100 MESH		
3362	1	33.31	1.4	biotite	conventional K-Ar	122-DL-62	"4.72E-04, 0.585E-04, 1.19E-04*"	9.14	4.424	84				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON; PRIMARY AGE IS PROBABLY JURASSIC
3362	2	53.09	1.5	muscovite	conventional K-Ar	122-DL-62	"4.72E-04, 0.585E-04, 1.19E-04*"	10.3	7.989	88				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3363	1	23.1	1.3	biotite	conventional K-Ar	135-DL-62	"4.72E-04, 0.585E-04, 1.19E-04*"	8.72	2.919	50				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3363	2	72.68	2	muscovite	conventional K-Ar	135-DL-62	"4.72E-04, 0.585E-04, 1.19E-04*"	10.48	11.19	92			age of volcanism	-100 MESH		
3364	1	55.17	1.5	muscovite	conventional K-Ar	199-MW-61	"4.72E-04, 0.585E-04, 1.19E-04*"	10.77	8.687	94				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3365	1	31.58	2.1	biotite	conventional K-Ar	226-MW-61	"4.72E-04, 0.585E-04, 1.19E-04*"	7.32	3.357	38				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3365	2	79.51	2.2	muscovite	conventional K-Ar	226-MW-61	"4.72E-04, 0.585E-04, 1.19E-04*"	10.1	11.82	90				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3366	1	34.85	1	muscovite	conventional K-Ar	119-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	10.06	5.096	82			age of intrusion	-100 MESH		
3367	1	23.1	1.3	biotite	conventional K-Ar	98-DL-62	"4.72E-04, 0.585E-04, 1.19E-04*"	8.5	2.848	66			age of metamorphic crystallization	+100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3368	1	17.4	0.8	muscovite	conventional K-Ar	184-MW-61	"4.72E-04, 0.585E-04, 1.19E-04*"	3.62	0.9112	80			age of later metamorphism	ALSO CONTAINS QUARTZ; -100 MESH		THERMAL METAMORPHISM; REDUCED AGE DUE TO LOSS OF ARGON; PRIMARY AGE IS PROBABLY JURASSIC
3369	1	31.61	1.5	biotite	conventional K-Ar	126-MW-61	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	3.912	84				+100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3370	1	19.01	1	muscovite	conventional K-Ar	188-MW-61	"4.72E-04, 0.585E-04, 1.19E-04*"	6.14	1.689	86			age of later metamorphism	ALSO CONTAINS QUARTZ; -100 MESH		THERMAL METAMORPHISM; REDUCED AGE DUE TO LOSS OF ARGON
3371	1	30.61	1.4	biotite	conventional K-Ar	230-MW-61	"4.72E-04, 0.585E-04, 1.19E-04*"	8.92	3.964	73				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON DURING THRUST FAULTING
3372	1	51.16	2	phlogopite	conventional K-Ar	224-DL-63	"4.72E-04, 0.585E-04, 1.19E-04*"	9.54	7.127	83				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3373	1	77.9	2.9	biotite	conventional K-Ar	177-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	9.04	10.36	89				+100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3374	1	77.22	2.9	biotite	conventional K-Ar	371-DL-66	"4.72E-04, 0.585E-04, 1.19E-04*"	8.48	9.632	84				+60 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3375	1	105.84	4	biotite	conventional K-Ar	334-DL-66	"4.72E-04, 0.585E-04, 1.19E-04*"	9.22	14.47	91				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3375	2	115.87	4	muscovite	conventional K-Ar	334-DL-66	"4.72E-04, 0.585E-04, 1.19E-04*"	9.24	15.92	90				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3376	1	123.34	4	biotite	conventional K-Ar	295-DL-64	"4.72E-04, 0.585E-04, 1.19E-04*"	8.76	16.1	96				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3376	2	153.82	4	muscovite	conventional K-Ar	295-DL-64	"4.72E-04, 0.585E-04, 1.19E-04*"	10.01	23.14	85			minimum age of intrusion	-100 MESH		
3377	1	26.09	1.3	biotite	conventional K-Ar	287-DL-63	"4.72E-04, 0.585E-04, 1.19E-04*"	9.28	3.511	75				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3377	2	31.82	1.7	muscovite	conventional K-Ar	287-DL-63	"4.72E-04, 0.585E-04, 1.19E-04*"	10.38	4.798	47				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3378	1	22.68	1.3	phengite	conventional K-Ar	419-DL-67	"4.72E-04, 0.585E-04, 1.19E-04*"	10.58	3.476	61				+80 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS DURING THRUST FAULTING
3379	1	25.31	1.7	muscovite	conventional K-Ar	250-DL-63	"4.72E-04, 0.585E-04, 1.19E-04*"	7.76	2.848	47				ALSO CONTAINS SOME QUARTZ; -60 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3380	1	25.8	1.2	biotite	conventional K-Ar	418-DL-67	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	3.274	55				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS DURING THRUST FAULTING
3380	2	55.42	1.5	phengite	conventional K-Ar	418-DL-67	"4.72E-04, 0.585E-04, 1.19E-04*"	10.66	8.637	91				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS DURING THRUST FAULTING
3381	1	61.43	3	biotite	conventional K-Ar	35A-MW-60	"4.72E-04, 0.585E-04, 1.19E-04*"	9.87	8.88	93				-60 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS DURING THRUST FAULTING
3382	1	62.65	1.8	phengite	conventional K-Ar	146-DL-62	"4.72E-04, 0.585E-04, 1.19E-04*"	10.8	9.912	91				-100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3383	1	66.19	1.8	phengite	conventional K-Ar	380-DL-66	"4.72E-04, 0.585E-04, 1.19E-04*"	10.91	10.59	91				-100 MESH		REDUCED AGE
3384	1	125.44	5	muscovite	conventional K-Ar	330-DL-66	"4.72E-04, 0.585E-04, 1.19E-04*"	7.32	13.69	94				ALSO CONTAINS QUARTZ; -100 MESH		REDUCED AGE DUE TO LOSS OF ARGON FROM THERMAL STRESS
3385	1	264.49	9	muscovite	conventional K-Ar	329-DL-66	"4.72E-04, 0.585E-04, 1.19E-04*"	6.92	28.38	96			age of volcanism	ALSO CONTAINS SOME QUARTZ; -100 MESH		
3393	1	93.86	1.8	sericite	conventional K-Ar	JDL-1-69	"4.76E-04, 0.589E-04, 1.18E-04*"	9.3	12.9	93						MINIMUM AGE OF ALTERATION
3394	1	69.75	1.7	microcline	conventional K-Ar	JDL-1-70	"4.76E-04, 0.589E-04, 1.18E-04*"	13	13.31	86						AGE IS PROBABLY SPURIOUS; MICROCLINE PROBABLY LEAKED RADIOGENIC ARGON
3395	1	97.36	2.4	sericite	conventional K-Ar	JDL-2-70	"4.76E-04, 0.589E-04, 1.18E-04*"	8.11	11.68	92						PROBABLE AGE OF ALTERATION; MAY BE CLOSE TO AGE OF CRYSTALLIZATION
3397	1	153.11	5	hornblende	conventional K-Ar	W-307	"4.72E-04, 0.585E-04, 1.19E-04*"	0.539	1.24	90			maximum age of intrusion			
3398	1	35.27	1.2	biotite	conventional K-Ar	J-250	"4.72E-04, 0.585E-04, 1.19E-04*"	8.56	4.39	81			age of intrusion			
3398	2	35.11	1.1	sanidine	conventional K-Ar	J-250	"4.72E-04, 0.585E-04, 1.19E-04*"	10.62	5.42	96			age of intrusion			
3399	1	34.77	1.1	biotite	conventional K-Ar	J-259	"4.72E-04, 0.585E-04, 1.19E-04*"	8.25	4.17	82			age of intrusion			
3399	2	35.78	1.2	sanidine	conventional K-Ar	J-259	"4.72E-04, 0.585E-04, 1.19E-04*"	12.34	6.42	95			age of intrusion			
3400	1	35.82	1	biotite	conventional K-Ar	J-269	"4.72E-04, 0.585E-04, 1.19E-04*"	8.39	4.37	85			age of intrusion			
3400	2	35.31	1.1	sanidine	conventional K-Ar	J-269	"4.72E-04, 0.585E-04, 1.19E-04*"	10.52	5.4	92			age of intrusion			
3401	1	35.25	1.1	biotite	conventional K-Ar	J-272	"4.72E-04, 0.585E-04, 1.19E-04*"	8.37	4.29	80			age of volcanism			
3401	2	33.45	1	sanidine	conventional K-Ar	J-272	"4.72E-04, 0.585E-04, 1.19E-04*"	11.85	5.76	94			age of volcanism			
3402	1	16.71	0.9	plagioclase	conventional K-Ar	W-304	"4.72E-04, 0.585E-04, 1.19E-04*"	0.295	0.0713	19			age of volcanism			
3403	1	15.61	0.4	sanidine	conventional K-Ar	W-302	"4.72E-04, 0.585E-04, 1.19E-04*"	10.1	2.28	92			age of volcanism			
3404	1	160.14	2	hornblende	conventional K-Ar	YU-SW341	"4.72E-04, 0.584E-04, 1.19E-04*"	0.618	1.49	4758			age of intrusion	"97.5% HORNBLENDE, 2.5% AMPHIBOLE AND EPIDOTE"	REPLICATE ANALYSES	
3405	1	154.19	4	hornblende	conventional K-Ar	YU-BV100	"4.72E-04, 0.584E-04, 1.19E-04*"	0.252	0.584	2228				"96% HORNBLENDE, 4% ALTERED AMPLIBOLE"	REPLICATE ANALYSES	AGE OF MINERALIZATION AND INTRUSION
3406	1	105.27	2	biotite	conventional K-Ar	YU-CA140	"4.72E-04, 0.584E-04, 1.19E-04*"	8.65	13.5	83			age of intrusion	"99% BIOTITE, +80 MESH"	REPLICATE POTASSIUM ANALYSES	
3407	1	89.66	2	biotite	conventional K-Ar	YU-CA150	"4.72E-04, 0.584E-04, 1.19E-04*"	7.39	9.78	83			age of intrusion	"99% BIOTITE, +80 MESH"	REPLICATE POTASSIUM ANALYSES	
3408	1	77.92	1.5	biotite	conventional K-Ar	YU-WH23	"4.72E-04, 0.584E-04, 1.19E-04*"	7.92	9.08	82			age of intrusion	"99% BIOTITE, +80 MESH"	REPLICATE POTASSIUM ANALYSES	
3409	1	59	3	biotite	conventional K-Ar	USGS(M)-NKS7-3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.95	6.86	83			age of intrusion	"99% BIOTITE, +60 MESH"	POTASSIUM VALUE IS AVERAGE OF 4 ANALYSES	"K-AR AGE OF 69.1+/-1.4 FOR BIOTITE REPORTED FOR THIS SAMPLE BY SILBERMAN AND MCKEE, 1971"
3410	1	257.22	3	hornblende		YU-M1	"4.72E-04, 0.584E-04, 1.19E-04*"	0.912	3.63	6374			age of volcanism	"92% HORNBLENDE, 8% EPIDOTE AND CHLORITE; +100 MESH"	REPLICATE ANALYSES	
3411	1	291	3	hornblende	conventional K-Ar	YU-M2	"4.72E-04, 0.584E-04, 1.19E-04*"	0.713	3.24	66			age of volcanism	"98.3% BROWN HORNBLENDE, 1.7% EPIDOTE AND CHLORITE; +100 MESH"	REPLICATE ANALYSES	
3412	1	259.56	3	hornblende	conventional K-Ar	YU-EXC68	"4.72E-04, 0.584E-04, 1.19E-04*"	1.1	4.421	7382			age of volcanism	"96% HORNBLENDE, 4% OTHER MINERALS, CHIEFLY CHLORITE; +100 MESH"	REPLICATE ANALYSES	
3413	1	215.98	3	hornblende	conventional K-Ar	YU-EXC1	"4.72E-04, 0.584E-04, 1.19E-04*"	1.22	4.03	7984				"96.9% HORNBLENDE, 3% CHLORITE, EPIDOTE, AND FELDSPAR; +100 MESH"	REPLICATE ANALYSES	"SPURIOUS AGE, PROBABLY; PRIMARY AGE MAY BE 253 M.Y."
3414	1	24.01	5	pyroxenes	conventional K-Ar	YU-AUG1	"4.72E-04, 0.584E-04, 1.19E-04*"	0.05	0.0174	23			age of volcanism	"99% CLINOPYREXENE, +100 MESH"	REPLICATE ANALYSES	
3415	1	20	2	biotite	conventional K-Ar	I-SW193	"4.72E-04, 0.584E-04, 1.19E-04*"	8.32	2.4	69		Page (1965)	age of intrusion	"99% BIOTITE, +80 MESH"		AGE LISTED BY PAGE (1965)
3416	1	100.15	3.5	biotite	conventional K-Ar	1(SA-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.105	13.5	90			age of intrusion			
3416	2	101.63	5	hornblende	conventional K-Ar	1(SA-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.485	0.73	56			age of intrusion			
3417	1	98.64	3.5	biotite	conventional K-Ar	7(BATTL)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.345	13.64	90			age of intrusion			
3418	1	96.5	3.7	biotite	conventional K-Ar	8(TP-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.955	12.78	77			age of intrusion			
3419	1	92.76	3.2	biotite	conventional K-Ar	9(D-8)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.085	12.45	71			age of intrusion			
3420	1	80.89	2.8	biotite	conventional K-Ar	14(52-3)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.53	10.16	82					POTASSIUM VALUE IS AVERAGE OF 4 ANALYSES	AGE IS PROBABLY A HYBRID AGE
3420	2	101.41	5	hornblende	conventional K-Ar	14(52-3)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.839	1.26	67			age of intrusion			
3420	3	105.32	5	hornblende	conventional K-Ar	14(52-3)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.839	1.31	69			age of intrusion			
3421	1	150.4	7.5	hornblende	conventional K-Ar	15(D-11)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.496	1.12	49			minimum age of intrusion			
3422	1	177.52	8	hornblende	conventional K-Ar	16(BC-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.35	0.94	51			age of intrusion			
3422	2	98.63	3.5	biotite	conventional K-Ar	16(BC-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.9	12.99	88						AGE IS APPARENTLY A HYBRID AGE
3423	1	98.56	3.5	biotite	conventional K-Ar	17(35-4)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.195	13.41	90			age of intrusion			
3424	1	94.16	3.9	biotite	conventional K-Ar	18(T1010)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.99	12.51	81			age of intrusion			
3424	2	97.45	6.3	hornblende	conventional K-Ar	18(T1010)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.77	1.11	94			age of intrusion			
3425	1	95.97	3.9	biotite	conventional K-Ar	19(T946)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.175	13.02	94			age of intrusion			
3425	2	91.72	5.9	hornblende	conventional K-Ar	19(T946)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.75	1.016	92			age of intrusion			
3426	1	104.99	4	biotite	conventional K-Ar	20(T972)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.25	12.84	91			age of intrusion			
3427	1	106.38	4	biotite	conventional K-Ar	21(T968)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.405	13.26	96			age of intrusion			
3428	1	87.02	3.6	biotite	conventional K-Ar	22(T961)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.655	9.826	93			age of intrusion			
3428	2	90.75	6	hornblende	conventional K-Ar	22(T961)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.675	0.9045	87			age of intrusion			
3429	1	89.31	3.7	biotite	conventional K-Ar	23(T944)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.975	11.83	95			age of intrusion			
3429	2	92.32	6.1	hornblende	conventional K-Ar	23(T944)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.69	0.941	77			age of intrusion			
3430	1	93.41	3.8	biotite	conventional K-Ar	24(T1047)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.585	13.23	95			age of intrusion			
3430	2	96.14	6	hornblende	conventional K-Ar	24(T1047)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.83	1.18	92			age of intrusion			
3431	1	93.3	3.1	biotite	conventional K-Ar	25(T975)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.06	12.49	96			age of intrusion			
3431	2	94.04	6.1	hornblende	conventional K-Ar	25(T975)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.56	0.7783	76			age of intrusion			
3432	1	92.1	1.8	biotite	conventional K-Ar	1. USGS(M)-MB33B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.88	12.08	89			age of intrusion	1% CHLORITE		
3433	1	94.47	1.8	biotite	conventional K-Ar	2. USGS(M)-MB34	"4.72E-04, 0.585E-04, 1.19E-04*"	8.73	12.19	86			age of intrusion			
3433	2	90.49	1.8	hornblende	conventional K-Ar	2. USGS(M)-MB34	"4.72E-04, 0.585E-04, 1.19E-04*"	0.694	0.9272	62			age of intrusion	3% PYROXENE		"HORNBLENDE AGE REVISED TO 89.5 M.Y. BY SILBERMAN, BERGER, AND KOSKI, 1974, BASED ON NEW POTASSIUM ANALYSES"
3434	1	92.1	1.8	biotite	conventional K-Ar	3. USGS(M)-MB32	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	11.59	92			age of intrusion			
3435	1	149.48	3	biotite	conventional K-Ar	4. USGS(M)-MB1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.08	18.13	89			age of intrusion	1% CHLORITE		
3435	2	148.4	3	hornblende	conventional K-Ar	4. USGS(M)-MB1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.78	1.737	74			age of intrusion	1% PYROXENE		
3436	1	160.99	3	biotite	conventional K-Ar	5. USGS(M)-MB3	"4.72E-04, 0.585E-04, 1.19E-04*"	9.05	21.94	95			age of intrusion		REPLICATE ARGON ANALYSES	
3436	2	163.76	3	hornblende	conventional K-Ar	5. USGS(M)-MB3	"4.72E-04, 0.585E-04, 1.19E-04*"	0.641	1.582	78			age of intrusion	"5% PYROXENE, 1% BIOTITE"		
3437	1	156.87	3	biotite	conventional K-Ar	6. USGS(M)-MB4	"4.72E-04, 0.585E-04, 1.19E-04*"	7.87	18.57	67			age of intrusion	1% CHLORITE		
3438	1	153.99	3	biotite	conventional K-Ar	7. USGS(M)-MB27	"4.72E-04, 0.585E-04, 1.19E-04*"	9.16	21.2	92			age of intrusion			
3439	1	35.68	0.7	biotite	conventional K-Ar	8. USGS(M)-M125	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	4.275	8084			age of intrusion		REPLICATE ARGON ANALYSES	
3439	2	35.59	0.7	sanidine	conventional K-Ar	8. USGS(M)-M125	"4.72E-04, 0.585E-04, 1.19E-04*"	11.6	6.003	98			age of intrusion			
3440	1	38.18	0.8	biotite	conventional K-Ar	9. USGS(M)-M124	"4.72E-04, 0.585E-04, 1.19E-04*"	8.79	4.883	7855			age of intrusion		REPLICATE ARGON ANALYSES	
3441	1	38.31	0.8	biotite	conventional K-Ar	10. USGS(M)-M123	"4.72E-04, 0.585E-04, 1.19E-04*"	7.99	4.454	8183			age of intrusion	5% CHLORITE	REPLICATE ARGON ANALYSES	
3441	2	39.13	0.8	hornblende	conventional K-Ar	10. USGS(M)-M123	"4.72E-04, 0.585E-04, 1.19E-04*"	1.077	0.6133	71			age of intrusion	"1% BIOTITE, 1% PYROXENE"		
3442	1	38.91	0.8	biotite	conventional K-Ar	11. USGS(M)-MB7	"4.72E-04, 0.585E-04, 1.19E-04*"	7.66	4.338	63			age of intrusion	5% CHLORITE		
3442	2	37.67	0.7	hornblende	conventional K-Ar	11. USGS(M)-MB7	"4.72E-04, 0.585E-04, 1.19E-04*"	0.953	0.5223	55			age of intrusion	4% BIOTITE		
3443	1	37.95	0.7	biotite	conventional K-Ar	12. USGS(M)-M119	"4.72E-04, 0.585E-04, 1.19E-04*"	7.25	4.003	38			age of intrusion	2% CHLORITE		
3443	2	36.96	0.7	hornblende	conventional K-Ar	12. USGS(M)-M119	"4.72E-04, 0.585E-04, 1.19E-04*"	0.892	0.4796	63			age of intrusion	LESS THAN 1% BIOTITE PRESENT		
3444	1	39.09	0.8	hornblende	conventional K-Ar	13. USGS(M)-MB8	"4.72E-04, 0.585E-04, 1.19E-04*"	1.021	0.5809	40			age of intrusion	"4% PYROXENE, 2% CHLORITE"		
3445	1	35.99	0.7	biotite	conventional K-Ar	14. USGS(M)-M103B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.61	3.983	71			age of intrusion	7% CHLORITE		
3446	1	95.06	1.9	sericite	conventional K-Ar	15. USGS(M)-MGW72	"4.72E-04, 0.585E-04, 1.19E-04*"	9.97	14.01	89						POSSIBLE AGE OF ALTERATION ACCOMPANIED BY GOLD DEPOSITION
3446	2	101.21	2	biotite	conventional K-Ar	15. USGS(M)-MGW72	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	12.32	86			minimum age of intrusion	12% CHLORITE		
3447	1	96.56	1.9	sericite	conventional K-Ar	16. USGS(M)-M5	"4.72E-04, 0.585E-04, 1.19E-04*"	8.34	11.91	95						POSSIBLE AGE OF ALTERATION ACCOMPANIED BY GOLD DEPOSITION
3448	1	89.32	1.7	biotite	conventional K-Ar	17. USGS(M)-MB25	"4.72E-04, 0.585E-04, 1.19E-04*"	7.38	9.729	79			age of intrusion	3% CHLORITE		
3449	1	89.08	1.7	biotite	conventional K-Ar	18. USGS(M)-M26	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	10.78	76			age of intrusion			
3450	1	38.15	0.7	biotite	conventional K-Ar	19. USGS(M)-MB12	"4.72E-04, 0.585E-04, 1.19E-04*"	8.45	4.69	66			age of intrusion			
3451	1	39.14	0.8	biotite	conventional K-Ar	20. USGS(M)-MB23	"4.72E-04, 0.585E-04, 1.19E-04*"	9.05	5.155	82			minimum age of intrusion			
3452	1	39.42	0.8	biotite	conventional K-Ar	21. USGS(M)-M18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.54	4.9	87			minimum age of intrusion			
3453	1	38.18	0.7	whole rock	conventional K-Ar	22. USGS(M)-MRB6500	"4.72E-04, 0.585E-04, 1.19E-04*"	9.51	5.283	81			age of metamorphic crystallization	SULFIDES REMOVED BEFORE ANALYSIS		APPARENT AGE OF MINERALIZATION
3454	1	38.03	0.7	whole rock	conventional K-Ar	23. USGS(M)-MB52	"4.72E-04, 0.585E-04, 1.19E-04*"	2.55	1.411	52			age of metamorphic crystallization	SULFIDES REMOVED BEFORE ANALYSIS		APPARENT AGE OF MINERALIZATION
3455	1	105.99	2	biotite	conventional K-Ar	24. USGS(M)-MB42	"4.72E-04, 0.585E-04, 1.19E-04*"	6.91	10.86	7882			age of intrusion		REPLICATE ARGON ANALYSES	
3456	1	156.8	3	biotite	conventional K-Ar	25. USGS(M)-MB41	"4.72E-04, 0.585E-04, 1.19E-04*"	9.15	21.58	8992			age of intrusion		REPLICATE ARGON ANALYSES	
3457	1	133.97	3	biotite	conventional K-Ar	26. USGS(M)-MB45	"4.72E-04, 0.585E-04, 1.19E-04*"	9.2	18.42	93			initial age disturbed by later metamorphism	2% CHLORITE		
3457	2	152.75	3	hornblende	conventional K-Ar	26. USGS(M)-MB45	"4.72E-04, 0.585E-04, 1.19E-04*"	1.078	2.474	83			age of intrusion	"2% PYROXENE, 2% BIOTITE"		
3458	1	156.66	3	biotite	conventional K-Ar	28. USGS(M)-M273	"4.72E-04, 0.585E-04, 1.19E-04*"	9.32	21.96	91			age of intrusion			
3459	1	158.66	3	biotite	conventional K-Ar	29. USGS(M)-M272	"4.72E-04, 0.585E-04, 1.19E-04*"	7.35	17.55	89			age of intrusion			
3460	1	73.06	1.4	biotite	conventional K-Ar	30. USGS(M)-M274	"4.72E-04, 0.585E-04, 1.19E-04*"	7.63	8.19	77			age of intrusion			
3461	1	69.61	2.7	biotite	conventional K-Ar	31. USGS(M)-M335	"4.72E-04, 0.585E-04, 1.19E-04*"	8.73	8.92	23			age of intrusion			
3462	1	172.25	3	biotite	conventional K-Ar	32. USGS(M)-M050	"4.72E-04, 0.585E-04, 1.19E-04*"	8.32	21.65	76			age of intrusion			
3463	1	154.43	3	biotite	conventional K-Ar	33. USGS(M)-M275	"4.72E-04, 0.585E-04, 1.19E-04*"	6.63	15.39	90			age of intrusion			
3464	1	157.92	3	biotite	conventional K-Ar	34. USGS(M)-M3-13	"4.72E-04, 0.585E-04, 1.19E-04*"	8.27	19.65	9788			age of intrusion		REPLICATE ARGON ANALYSES	
3465	1	80.12	1.6	muscovite	conventional K-Ar	35. USGS(M)-M25-5	"4.72E-04, 0.585E-04, 1.19E-04*"	10.2	12.03	8475			age of intrusion		REPLICATE ARGON ANALYSES	
3466	1	34.28	0.7	biotite	conventional K-Ar	36. USGS(M)-M14	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	4.335	3236			age of intrusion		REPLICATE ARGON ANALYSES	
3467	1	36.5	0.7	biotite	conventional K-Ar	37. USGS(M)-66B87	"4.72E-04, 0.585E-04, 1.19E-04*"	8.64	4.587	77			age of intrusion			
3468	1	102.16	2	biotite	conventional K-Ar	38. USGS(M)-AD39	"4.72E-04, 0.585E-04, 1.19E-04*"	6.76	10.23	85			minimum age of intrusion	13% CHLORITE PRESENT		AGE MAY NOT BE PRIMARY AGE
3469	1	114.07	4	biotite	conventional K-Ar	G-BO464	"4.72E-04, 0.585E-04, 1.19E-04*"	7.35	12.46				age of intrusion			
3470	1	112.65	3	biotite	conventional K-Ar	G-BO446	"4.72E-04, 0.585E-04, 1.19E-04*"	6.31	10.56				age of intrusion			ALSO A MINIMUM AGE FOR THE COPPER MINERALIZATION
3471	1	24.31	0.9	sanidine	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.06	2.84	81			age of volcanism			
3472	1	23.88	0.9	sanidine	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.57	2.62	77			age of volcanism			
3473	1	24.57	1	sanidine	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	10.39	3.7	86			age of volcanism			
3474	1	25.39	1	sanidine	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	10.05	3.7	96			age of volcanism			
3475	1	27.02	1	biotite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	4.67	1.83	67			age of volcanism			
3476	1	27.68	1	sanidine	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	8.94	3.59	83			age of volcanism			
3477	1	27.57	1	sanidine	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	9.05	3.62	94			age of volcanism			
3478	1	28.74	1.1	biotite	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	3.52	39			age of volcanism			
3479	1	31.72	1.2	biotite	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.64	3.98	77			age of volcanism			
3479	2	29.17	1.1	sanidine	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	11.22	4.75	88			age of volcanism			
3480	1	24.17	0.9	biotite	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	7.48	2.62	73			age of volcanism			
3481	1	22.48	0.9	sanidine	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	8.32	2.71	84			age of volcanism			
3482	1	26.85	1	biotite	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	7.6	2.96	79			age of volcanism			
3483	1	24.73	1	biotite	conventional K-Ar	13	"4.72E-04, 0.585E-04, 1.19E-04*"	6.89	2.47	57			age of volcanism			
3484	1	25.44	1	sanidine	conventional K-Ar	14	"4.72E-04, 0.585E-04, 1.19E-04*"	9.87	3.64	87			age of volcanism			
3485	1	25.77	1	sanidine	conventional K-Ar	15	"4.72E-04, 0.585E-04, 1.19E-04*"	10.33	3.86	93			age of volcanism			
3486	1	26.14	1	sanidine	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	10.5	3.98	85			age of volcanism			
3487	1	27.19	1	biotite	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	7.91	3.12	75			age of volcanism			
3487	2	25.84	1	sanidine	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	11.05	4.14	88			age of volcanism			
3488	1	15.69	0.8	sanidine	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.92	2.25	88			age of volcanism			"THIS AGE PUBLISHED BY J. GILLULY, 1967, IN USGS MAP GQ-656; AGE ONLY"
3489	1	34.48	1.1	sanidine	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	11.95	5.99	91			age of volcanism			
3491	1	25.02		biotite	conventional K-Ar	67W261	"4.72E-04, 0.585E-04, 1.19E-04*"	7.605	2.758	79			age of volcanism			
3491	2	24.13		biotite	conventional K-Ar	67W262	"4.72E-04, 0.585E-04, 1.19E-04*"	7.65	2.675	85			age of volcanism			
3492	1	19.82	0.6	biotite	conventional K-Ar	18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.19	2.35	48			age of volcanism			
3493	1	23.66	0.7	sanidine	conventional K-Ar	19	"4.72E-04, 0.585E-04, 1.19E-04*"	5.98	2.05	53			age of volcanism			
3494	1	32.7	1.3	sanidine	conventional K-Ar	39	"4.72E-04, 0.585E-04, 1.19E-04"	11.71	2.46	89			age of volcanism		(*)	
3495	1	39.61	0.8	biotite	conventional K-Ar	73	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	4.74	87			age of volcanism			
3496	1	33.94	0.7	sanidine	conventional K-Ar	76	"4.72E-04, 0.585E-04, 1.19E-04*"	4.46	2.2	74			age of volcanism			
3496	2	35.78	0.7	biotite	conventional K-Ar	76	"4.72E-04, 0.585E-04, 1.19E-04*"	6.17	3.21	80			age of volcanism			
3497	1	34.78	0.9	biotite	conventional K-Ar	77	"4.72E-04, 0.585E-04, 1.19E-04*"	7.99	4.04	45			age of volcanism			
3498	1	40.35	0.8	biotite	conventional K-Ar	78	"4.72E-04, 0.585E-04, 1.19E-04*"	8	4.7	88			age of volcanism			
3499	1	31.38	1.1	biotite	conventional K-Ar	87	"4.72E-04, 0.585E-04, 1.19E-04*"	7.68	3.5	71			age of volcanism			
3500	1	30.8	1	biotite	conventional K-Ar	92	"4.72E-04, 0.585E-04, 1.19E-04*"	7.58	3.39	54			age of volcanism			
3501	1	31.87	1.1	sanidine	conventional K-Ar	93	"4.72E-04, 0.585E-04, 1.19E-04*"	9.96	4.61	85			age of volcanism			
3502	1	33.13	1.1	sanidine	conventional K-Ar	94	"4.72E-04, 0.585E-04, 1.19E-04*"	10.2	4.91	92			age of volcanism			
3503	1	36.16	0.8	biotite	conventional K-Ar	95	"4.72E-04, 0.585E-04, 1.19E-04*"	7.72	4.06	90			age of volcanism			
3503	2	33.81	0.8	sanidine	conventional K-Ar	95	"4.72E-04, 0.585E-04, 1.19E-04*"	12.07	5.93	98			minimum age of volcanism			
3504	1	36.08	1.1	biotite	conventional K-Ar	97	"4.72E-04, 0.585E-04, 1.19E-04*"	8.12	4.26	86			age of volcanism			
3505	1	36.07	1.9	hornblende	conventional K-Ar	98(PS66B-59)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.22	0.64	65			age of volcanism			
3506	1	35.68	1.4	biotite	conventional K-Ar	99(PS66B-55)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.94	3.6	78			age of volcanism			
3507	1	35.13	1	biotite	conventional K-Ar	100(PS66B-31)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.97	4.07	79			age of volcanism			
3508	1	35.61	0.7	biotite	conventional K-Ar	101(E-13)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.41	4.354	89			age of intrusion			
3509	1	34.6	1.9	biotite	conventional K-Ar	102(PS66B-81)	"4.72E-04, 0.585E-04, 1.19E-04"	8.11	3.29	69			age of volcanism		(*)	
3510	1	36.19	0.7	biotite	conventional K-Ar	103(E-29)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.57	4.51	86			age of volcanism			
3511	1	38.73	1.3	hornblende	conventional K-Ar	104(PS68-5)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.621	0.35	54			age of intrusion			
3512	1	35.45	0.7	sanidine	conventional K-Ar	105(E-14)	"4.72E-04, 0.585E-04, 1.19E-04*"	11.39	5.87	97			age of intrusion			
3513	1	33.83	1	biotite	conventional K-Ar	106(E-15)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	3.85	34			age of volcanism			
3513	2	35.54	0.7	sanidine	conventional K-Ar	106(E-15)	"4.72E-04, 0.585E-04, 1.19E-04*"	11.92	6.16	92			age of volcanism			
3514	1	36.39	0.7	biotite	conventional K-Ar	107(E-19)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.69	4.07	88			age of intrusion			
3514	2	35.86	0.7	sanidine	conventional K-Ar	107(E-19)	"4.72E-04, 0.585E-04, 1.19E-04*"	12.33	6.43	98			age of intrusion			
3515	1	38.98	0.8	biotite	conventional K-Ar	109(PS64B-17)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.58	4.3	91			age of volcanism			
3516	1	35.93	0.8	biotite	conventional K-Ar	110A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	4.41	95			age of volcanism			
3517	1	35.9	0.8	biotite	conventional K-Ar	110B(PS64B-18)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.7	4.02	83			age of volcanism			
3518	1	37.11	0.7	biotite	conventional K-Ar	111(E-16)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.78	4.74	89			age of volcanism			
3519	1	37.65	1.3	biotite	conventional K-Ar	112(PS68-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.38	4.59	74			age of volcanism			
3520	1	36.47	1.3	hornblende	conventional K-Ar	113(PS68-6)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.15	0.61	57			age of volcanism			
3521	1	34.66	1	whole rock	conventional K-Ar	114(E-8)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.85	1.94	94			age of volcanism		(HIGH POTASSIUM VALUE FOR BASALT--COMPILER)	
3522	1	34.71	0.7	biotite	conventional K-Ar	115(E-27)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.77	3.92	74			age of volcanism			
3523	1	37.32	1.3	biotite	conventional K-Ar	116(PS68-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.94	4.31	85			age of intrusion			
3524	1	35.35	1.4	biotite	conventional K-Ar	117(E64B-3)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.49	3.85	75			age of intrusion			
3525	1	34.56	0.7	sanidine	conventional K-Ar	119(E-32)	"4.72E-04, 0.585E-04, 1.19E-04*"	12.52	6.29	96			age of volcanism			
3526	1	33.94	1	whole rock	conventional K-Ar	120(E-12)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.21	1.09	59			age of volcanism			
3527	1	23.62	0.9	sanidine	conventional K-Ar	122(B68-119)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.84	3.71	82			age of volcanism			
3528	1	22.64	0.9	sanidine	conventional K-Ar	123(PS65B-27)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.02	2.63	82			age of volcanism			
3529	1	35.48	1.3	hornblende	conventional K-Ar	125(PS68-3)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.26	0.65	52			age of volcanism			
3530	1	36.02	1.9	plagioclase	conventional K-Ar	126(PS65B-35)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.42	0.22	10			age of volcanism			
3531	1	35.24	0.7	biotite	conventional K-Ar	127(E-21)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.55	4.38	93			age of volcanism			
3532	1	35.94	1.4	biotite	conventional K-Ar	136	"4.72E-04, 0.585E-04, 1.19E-04*"	8.65	4.52	72			age of volcanism			
3533	1	36.44	1.4	biotite	conventional K-Ar	137	"4.72E-04, 0.585E-04, 1.19E-04*"	8.34	4.42	80			age of volcanism			
3534	1	35.46	1.9	biotite	conventional K-Ar	138	"4.72E-04, 0.585E-04, 1.19E-04*"	8.38	4.32	62			age of volcanism			
3535	1	35.61	1.4	biotite	conventional K-Ar	139	"4.72E-04, 0.585E-04, 1.19E-04*"	8.69	4.5	21			age of volcanism			
3536	1	33.99	0.7	biotite	conventional K-Ar	140	"4.72E-04, 0.585E-04, 1.19E-04*"	5.79	2.86	65			age of volcanism			
3537	1	35.36	0.7	biotite	conventional K-Ar	141	"4.72E-04, 0.585E-04, 1.19E-04*"	8.5	4.37	3281			age of intrusion		AVERAGE OF TWO ARGON ANALYSES	
3538	1	24.9	0.6	sanidine	conventional K-Ar	145	"4.72E-04, 0.585E-04, 1.19E-04*"	9.91	3.57	95			age of volcanism			
3538	2	28.35	0.5	biotite	conventional K-Ar	145	"4.72E-04, 0.585E-04, 1.19E-04*"	7.34	3.02	77			age of volcanism			
3539	1	37.47	0.7	biotite	conventional K-Ar	146	"4.72E-04, 0.585E-04, 1.19E-04*"	8.77	4.78	90			age of intrusion			
3540	1	14.55	0.3	sanidine	conventional K-Ar	147	"4.72E-04, 0.585E-04, 1.19E-04*"	7.7	1.62	88			age of volcanism			
3541	1	38.03	0.7	sanidine	conventional K-Ar	148	"4.72E-04, 0.585E-04, 1.19E-04*"	11.26	6.23	92			age of intrusion			
3541	2	38	0.7	biotite	conventional K-Ar	148	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	4.81	84			age of intrusion			
3542	1	42.45	0.8	biotite	conventional K-Ar	149	"4.72E-04, 0.585E-04, 1.19E-04*"	7.26	4.49	82			age of intrusion			
3543	1	81.54	2	biotite	conventional K-Ar	G-B0553/NBM-AD11	"4.72E-04, 0.585E-04, 1.19E-04*"	9.16	11	6973			minimum age of intrusion		REPLICATE ANALYSES	
3544	1	11.02	1.2	biotite	conventional K-Ar	G-B0642/NBM-AD13	"4.72E-04, 0.585E-04, 1.19E-04*"	8.36	1.33	3040			minimum age of intrusion		REPLICATE ANALYSES	A DIKE SWARM CUTS THIS PLUTON; AGE REFLECTS REHEATING
3545	1	48.34	2	biotite	conventional K-Ar	G-B0805/NBM-AD17	"4.72E-04, 0.585E-04, 1.19E-04*"	3.87	2.73	5658			minimum age of intrusion		REPLICATE ANALYSES (LOW POTASSIUM VALUE FOR BIOTITE--COMPILER)	
3546	1	90.98	2.7	biotite	conventional K-Ar	G-B0835/NBM-AD18	"4.72E-04, 0.585E-04, 1.19E-04*"	9.23	12.4	9195			age of intrusion		REPLICATE ANALYSES	
3547	1	78.73	2.8	biotite	conventional K-Ar	G-B0836/NBM-AD19	"4.72E-04, 0.585E-04, 1.19E-04*"	8.89	10.3	8693			age of intrusion		REPLICATE ANALYSES	
3548	1	161.26	6	biotite	conventional K-Ar	G-B0837/NBM-AD20	"4.72E-04, 0.585E-04, 1.19E-04*"	7	17	8895			age of intrusion		REPLICATE ANALYSES	
3549	1	14.36	0.6	biotite	conventional K-Ar	G-B0920/NBM-AD23	"4.72E-04, 0.585E-04, 1.19E-04*"	7.47	1.55	6061			age of intrusion		REPLICATE ANALYSES	
3550	1	89.67	2.7	biotite	conventional K-Ar	G-B0921/NBM-AD24	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	11.7	8990			age of intrusion		REPLICATE ANALYSES	
3551	1	92.67	2.7	biotite	conventional K-Ar	G-B0922/NBM-AD25	"4.72E-04, 0.585E-04, 1.19E-04*"	8.4	11.5	9093			age of intrusion		REPLICATE ANALYSES	
3552	1	92.56	2.7	biotite	conventional K-Ar	G-B0997/NBM-AD28	"4.72E-04, 0.585E-04, 1.19E-04*"	8.63	11.8	8182			age of intrusion		REPLICATE ANALYSES	
3553	1	95.3	2.9	biotite	conventional K-Ar	G-B1291/NBM-AD33	"4.72E-04, 0.585E-04, 1.19E-04*"	8.53	12.02	92			age of intrusion		REPLICATE ANALYSES	
3554	1	105.62	6	hornblende	conventional K-Ar	G-A1328/NBM-AD36	"4.72E-04, 0.585E-04, 1.19E-04*"	1.06	1.66	7479			age of intrusion		REPLICATE ANALYSES	
3555	1	97.98	3	biotite	conventional K-Ar	G-B1329/NBM-AD38	"4.72E-04, 0.585E-04, 1.19E-04*"	7.85	11.38	8184			age of intrusion		REPLICATE ANALYSES	
3556	1	127.04	9	hornblende	conventional K-Ar	G-A1525/NBM-SCP28	"4.72E-04, 0.585E-04, 1.19E-04*"	0.428	0.811	3336			age of intrusion		REPLICATE ANALYSES	
3557	1	150.3	8	hornblende	conventional K-Ar	G-A1526/NBM-SCP120	"4.72E-04, 0.585E-04, 1.19E-04*"	0.417	0.941	4955			age of intrusion		REPLICATE ANALYSES	
3558	1	102.4	3	biotite	conventional K-Ar	G-B0919/NBM-AD22	"4.72E-04, 0.585E-04, 1.19E-04*"	8.57	13	92			minimum age of intrusion	HYDROBIOTITE FROM MINERALIZING SOLUTIONS		"AGE OF MINERALIZATION, ALTERATION, AND INTRUSION"
3571	1	39.63	1.3	K feldspar	conventional K-Ar	146	"4.72E-04, 0.585E-04, 1.19E-04*"	5.96	3.438	80			age of intrusion		"ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS, DENVER, COLORADO"	
3571	2	39.27	1.3	biotite	conventional K-Ar	146	"4.72E-04, 0.585E-04, 1.19E-04*"	7.41	4.235	81			age of intrusion		"ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS, DENVER, COLORADO"	
3572	1	42.44	1.4	biotite	conventional K-Ar	188	"4.72E-04, 0.585E-04, 1.19E-04*"	7.26	4.488	82			age of volcanism		"ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS, DENVER, COLORADO"	
3573	1	38.02	1.3	biotite	conventional K-Ar	174	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	4.813	84			age of volcanism		"ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS, DENVER, COLORADO"	
3573	2	38.03	1	sanidine	conventional K-Ar	174	"4.72E-04, 0.585E-04, 1.19E-04*"	11.26	6.231	92			age of volcanism		"UNPUBLISHED AGE AND ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS, DENVER, COLORADO"	
3574	1	26.28	1.3	K feldspar	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.9	2.63	78			age of volcanism			
3575	1	23.8	0.8	biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.66	2.642	62			age of volcanism			
3576	1	21.9	4	plagioclase	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	0.457	0.145	24			age of volcanism			
3577	1	20.08	0.6	K feldspar	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	5.95	1.73	68			age of volcanism			
3578	1	27.02	1.2	biotite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	8.37	3.28	30			age of volcanism			
3578	2	26.36	1.3	biotite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	8.37	3.2	71			age of volcanism			
3579	1	27		hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3580	1	18.6	1.5	biotite	conventional K-Ar	KA-52	"4.72E-04, 0.585E-04, 1.19E-04"	7					"age of uplift and cooling, initial age disturbed by later metamorphism"		"POTASSIUM VALUE SUPPLIED BY C.H. THORMAN, USGS, DENVER, COLORADO"	
3581	1	42.4	3.4	biotite	conventional K-Ar	KA-53	"4.76E-04, 0.586E-04"	5.06					"age of uplift and cooling, initial age disturbed by later metamorphism"		"POTASSIUM VALUE SUPPLIED BY C.H. THORMAN, USGS, DENVER, COLORADO"	
3582	1	29.8	2.4	biotite	conventional K-Ar	KA-54	"4.72E-04, 0.585E-04, 1.19E-04"	3.29					age of uplift and cooling		"POTASSIUM VALUE SUPPLIED BY C.H. THORMAN, USGS, DENVER, COLORADO"	
3583	1	29.7	2.4	biotite	conventional K-Ar	KA-55	"4.72E-04, 0.585E-04, 1.19E-04"	7.02					initial age disturbed by later metamorphism		"POTASSIUM VALUE SUPPLIED BY C.H. THORMAN, USGS, DENVER, COLORADO"	
3584	1	41.5	3.3	biotite	conventional K-Ar	KA-68	"4.72E-04, 0.585E-04, 1.19E-04"	8.59					initial age disturbed by later metamorphism		"POTASSIUM VALUE SUPPLIED BY C.H. THORMAN, USGS, DENVER, COLORADO"	
3585	1	105	0.5	Unk		(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3588	1	34		Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
3589	1	15.27	0.5	biotite	conventional K-Ar	8(G/UCD-GAX17)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.93	1.53	17			age of volcanism	MINERAL CONCENTRATE FROM ONE LARGE PUMICE BLOCK	ARGON VALUE IS AVERAGE OF FOUR ANALYSES	
3590	1	12.76	0.2	biotite	conventional K-Ar	9(USGS(M)-C1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.09	1.492	48			age of volcanism			
3591	1	16.91	0.5	plagioclase	conventional K-Ar	11(USGS(M)-C9)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.359	0.0878	39			age of volcanism			
3592	1	13.81	0.3	hornblende	conventional K-Ar	22(USGS(M)-711-67)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.708	0.1413	49			age of volcanism	4% PYROXENE PRESENT		
3593	1	14.75	0.3	hornblende	conventional K-Ar	23(USGS(M)-668-G10)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.658	0.1403	43			age of volcanism	4% PYROXENE PRESENT		
3594	1	15.4	0.3	plagioclase	conventional K-Ar	24(USGS(M)-711-8)	"4.72E-04, 0.585E-04, 1.19E-04"	0.993	0.7144	43			age of intrusion		(*)	"MAY BE VOLCANIC NECK--VENT FOR ANDESITE FLOWS, NOW MINERALIZED"
3595	1	11.49	0.2	biotite	conventional K-Ar	26(USGS(M)712-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.47	1.405	50			age of intrusion			ANDESITE FLOWS COME FROM THIS INTRUSIVE VENT
3595	2	11.21	0.3	plagioclase	conventional K-Ar	26(USGS(M)712-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.594	0.0962	45			age of intrusion			
3595	3	11.9	0.3	hornblende	conventional K-Ar	26(USGS(M)-712-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.69	0.1186	38			age of intrusion			
3596	1	11.54	0.2	biotite	conventional K-Ar	27(USGS(M)710-7)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.36	1.393	74			age of volcanism			
3597	1	11.23	0.2	biotite	conventional K-Ar	28(USGS(M)-NTS10B)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.37	1.357	56			age of volcanism			
3597	2	11.25	0.2	sanidine	conventional K-Ar	28(USGS(M)-NTS10B)	"4.72E-04, 0.585E-04, 1.19E-04*"	11.3	1.836	64			age of volcanism			
3598	1	10.13	0.3	sanidine	conventional K-Ar	29(USGS(M)-BAGHDAD)	"4.72E-04, 0.585E-04, 1.19E-04*"	11.4	1.668	33			age of intrusion			
3598	2	10.47	0.4	plagioclase	conventional K-Ar	29(USGS(M)-BAGHDAD)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.693	0.1048	23			age of intrusion			
3599	1	2.58	0.1	biotite	conventional K-Ar	30(USGS(M)-670G4)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	0.3252	25			age of intrusion			
3600	1	2.58	0.2	biotite	conventional K-Ar	31(USGS(M)-610-1B)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.65	0.2844	25			age of intrusion			
3600	2	2.77	0.2	hornblende	conventional K-Ar	31(USGS(M)-610-1B)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.948	0.0379	18			age of intrusion			
3601	1	0.26	0.05	whole rock	conventional K-Ar	32(USGS(M)-672-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.27	0.0121	7			age of volcanism			
3602	1	2.25	0.1	whole rock	conventional K-Ar	33(USGS(M)-611-5)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.48	0.1451	29			age of volcanism			
3602	2	2.54	0.2	hornblende	conventional K-Ar	33(USGS(M)-611-5)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.09	0.0399	21			age of volcanism	5% PYROXENE PRESENT		
3603	1	21.99	0.4	biotite	conventional K-Ar	70(Z15326-9A)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.57	2.73	76			age of volcanism			
3604	1	22.63	0.7	sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.42	3.417	59			age of volcanism			
3605	1	29.17	1	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	3.506	54			age of volcanism			
3607	1	30.62	1	sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.36	3.717	71			age of volcanism	"MCKEE AND OTHERS, 1971, REPORT MINERAL AS BIOTITE FOR THIS ANALYSIS--COMPILER"		
3608	1	35.63	1.2	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.965	0.5	57			age of volcanism			
3609	1	25.13	0.8	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.36	3.046	47			age of volcanism			
3610	1	30.7	1	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.69	2.982	65			age of volcanism			
3612	1	36.13	3.3	hornblende	conventional K-Ar	G-A1674/NBM-AD40	"4.72E-04, 0.585E-04, 1.19E-04*"	0.59	0.31	1720			age of intrusion			
3613	1	96.98	3.2	sericite	conventional K-Ar	G-M1675/NBM-AD41	"4.72E-04, 0.585E-04, 1.19E-04*"	5.34	7.66	7273			minimum age of intrusion			METALLIZATION EITHER CONTEMPORANEOUS OR YOUNGER THAN ALTERATION; AGE OF ALTERATION
3614	1	22.6	0.6	sanidine	conventional K-Ar	C4	"4.72E-04, 0.585E-04, 1.19E-04*"	11	3.6	82			age of volcanism			
3615	1	23.62	0.6	sanidine	conventional K-Ar	B17	"4.72E-04, 0.585E-04, 1.19E-04*"	10.84	3.71	82			age of volcanism			
3616	1	31.75	0.8	sanidine	conventional K-Ar	W1	"4.72E-04, 0.585E-04, 1.19E-04*"	12.36	5.7	62			age of volcanism			
3617	1	31.08	0.8	sanidine	conventional K-Ar	W3	"4.72E-04, 0.585E-04, 1.19E-04*"	12.85	5.8	83			age of volcanism			
3617	2	32.46	0.8	biotite	conventional K-Ar	W3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.78	4.14	49			age of volcanism			
3618	1	30.58	0.8	sanidine	conventional K-Ar	W4	"4.72E-04, 0.585E-04, 1.19E-04*"	13.04	5.79	84			age of volcanism			
3618	2	32.45	0.8	biotite	conventional K-Ar	W4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.74	4.12	40			age of volcanism			
3619	1	30.93	0.8	sanidine	conventional K-Ar	W8	"4.72E-04, 0.585E-04, 1.19E-04*"	13.09	5.88	69			age of volcanism			
3619	2	31.43	0.8	biotite	conventional K-Ar	W8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.85	4.04	81			age of volcanism			
3620	1	31.17	0.8	sanidine	conventional K-Ar	W9	"4.72E-04, 0.585E-04, 1.19E-04*"	12.35	5.59	73			age of volcanism			
3620	2	31.46	0.8	biotite	conventional K-Ar	W9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.36	3.82	77			age of volcanism			
3621	1	32.06	0.8	sanidine	conventional K-Ar	P1	"4.72E-04, 0.585E-04, 1.19E-04*"	12.09	5.63	91			age of volcanism			
3622	1	30.89	0.8	sanidine	conventional K-Ar	P2	"4.72E-04, 0.585E-04, 1.19E-04*"	12.04	5.4	78			age of volcanism			
3622	2	31.47	0.8	biotite	conventional K-Ar	P2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.38	3.83	41			age of volcanism			
3623	1	33.38	0.8	sanidine	conventional K-Ar	P3	"4.72E-04, 0.585E-04, 1.19E-04*"	12.41	6.02	89			age of volcanism			
3623	2	34.75	0.9	biotite	conventional K-Ar	P3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	4.42	68			age of volcanism			
3624	1	32.79	0.8	biotite	conventional K-Ar	P4/PS65B-1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.48	4.04	82			age of volcanism			
3624	2	33.46	0.8	biotite	conventional K-Ar	P4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	4.23	75			age of volcanism			
3625	1	33.99	0.8	sanidine	conventional K-Ar	S2	"4.72E-04, 0.585E-04, 1.19E-04*"	12.59	6.22	86			age of volcanism			
3625	2	35.76	0.9	biotite	conventional K-Ar	S2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.77	4.04	48			age of volcanism			
3626	1	34.09	0.8	sanidine	conventional K-Ar	S3	"4.72E-04, 0.585E-04, 1.19E-04*"	13.04	6.46	90			age of volcanism			
3626	2	35.84	0.9	biotite	conventional K-Ar	S3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.25	4.3	42			age of volcanism			
3627	1	25.88	1	biotite	conventional K-Ar	G-B1945/NBM-AD45	"4.72E-04, 0.585E-04, 1.19E-04*"	8.66	3.25	45			age of volcanism			
3628	1	29.35	1.1	biotite	conventional K-Ar	G-B1788/NBM-AD43	"4.72E-04, 0.585E-04, 1.19E-04*"	8.522	3.63	43			age of volcanism			
3629	1	82.37	3	biotite	conventional K-Ar	G-B1928/NBM-AD46	"4.72E-04, 0.585E-04, 1.19E-04*"	7.796	9.46	68			age of intrusion			
3630	1	146.67	8	hornblende	conventional K-Ar	G-A1787/NBM-AD42	"4.72E-04, 0.585E-04, 1.19E-04*"	0.891	1.96	51			age of intrusion			
3631	1	15.03	0.4	adularia	conventional K-Ar	BUCKHORN	"4.72E-04, 0.585E-04, 1.19E-04*"	12.47	2.709	52						AGE OF MINERALIZATION
3632	1	89.32	1.7	biotite	conventional K-Ar	1. (MB-25)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.38	9.729	79			age of intrusion	3% CHLORITE; -20+60 MESH SAMPLE		
3633	1	89.08	1.7	biotite	conventional K-Ar	2. (MB-26)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	10.78	76			age of intrusion	LESS THAN 1% CHLORITE; -20+140 MESH SAMPLE		
3634	1	42.14	1.4	hornblende	conventional K-Ar	3. (MB-20)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.685	0.4205	23			age of intrusion	LESS THAN 1% PYROXENE; -100+150 MESH SAMPLE		
3634	2	40.15	0.8	biotite	conventional K-Ar	3. (MB-20)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.2	4.209	62			age of intrusion	2% CHLORITE; -50+150 MESH SAMPLE		
3635	1	38.24	0.7	biotite	conventional K-Ar	4. (MB-12)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.43	4.691	66			age of intrusion	LESS THAN 1% CHLORITE; -48+80 MESH SAMPLE		
3636	1	38.22	0.7	biotite	conventional K-Ar	5. (MB-16)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.45	4.699	74			age of intrusion	LESS THAN 1% CHLORITE; -42+60 MESH SAMPLE		
3637	1	38.48	0.8	biotite	conventional K-Ar	6. (MB-21)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	4.939	60			age of intrusion	LESS THAN 1% SERICITE; -35+60 MESH SAMPLE		
3638	1	40.01	0.8	biotite	conventional K-Ar	7. (MB-9)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.78	4.532	83			age of intrusion	LESS THAN 1% IMPURITY; -80+100 MESH SAMPLE		
3638	2	39.75	0.8	hornblende	conventional K-Ar	7. (MB-9)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.8	1.62	80			age of intrusion	10% BIOTITE; -80+100 MESH SAMPLE		
3639	1	39.19	0.8	biotite	conventional K-Ar	8. (MB-19)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.92	4.518	79			age of intrusion	1% CHLORITE; -60+150 MESH SAMPLE		
3640	1	39.42	0.8	biotite	conventional K-Ar	9. (MB-18)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.54	4.9	87			age of intrusion	LESS THAN 1% CHLORITE; -60+100 MESH SAMPLE		
3641	1	39.14	0.8	biotite	conventional K-Ar	10. (MB-23)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.05	5.155	82			age of intrusion	-40+80 MESH		
3642	1	38.96	0.8	biotite	conventional K-Ar	11. (MB-30)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.38	5.318	63			age of intrusion	-80+100 MESH		
3643	1	38.54	0.8	biotite	conventional K-Ar	11. (MB-40)	"4.72E-04, 0.585E-04, 1.19E-04*"	9	5.048	78			minimum age of intrusion	2% CHLORITE; -42+65 MESH SAMPLE		MAY BE AGE OF MINERALIZATION
3644	1	38.18	0.7	whole rock	conventional K-Ar	13. (MB-6500)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.51	5.283	81				"-100+150 MESH MATERIAL CONSISTING OF BIOTITE, K-FELDSPAR, WHITE MICA, QUARTZ, AND PLAGIOCLASE SEPARATED FROM PYRITE AND CHALCOPYRITE"		ALTERATION AGE; AGE OF MINERALIZATION
3645	1	38.03	0.7	whole rock	conventional K-Ar	14. (MB-52)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.55	1.411	52				"-100+150 MESH MATERIAL CONSISTING OF BIOTITE, K-FELDSPAR, WHITE MICA, QUARTZ, AND PLAGIOCLASE SEPARATED FROM PYRITE AND CHALCOPYRITE"		ALTERATION AGE; AGE OF MINERALIZATION
3646	1	16.69	0.5	adularia	conventional K-Ar	REO MINE	"4.72E-04, 0.585E-04, 1.19E-04*"	15.57	3.758	85				ADULARIA HAS SANIDINE-FELDSPAR STRUCTURE ACCORDING TO X-RAY ANALYSIS		AGE OF MINERALIZATION
3647	1	14.64	0.4	adularia	conventional K-Ar	CROWN MINE	"4.72E-04, 0.585E-04, 1.19E-04*"	12.48	2.641	64				ADULARIA HAS SANIDINE-FELDSPAR STRUCTURE ACCORDING TO X-RAY ANALYSIS		AGE OF MINERALIZATION
3648	1	74.95	2	microcline	conventional K-Ar	BLACK CANYON MINE	"4.72E-04, 0.585E-04, 1.19E-04*"	15.32	16.88	95						MINIMUM AGE OF MINERALIZATION BECAUSE OF POSSIBLE LOSS OF ARGON BY MICROCLINE
3649	1	14.03	0.4	orthoclase	conventional K-Ar	KINDEGARTEN MINE	"4.72E-04, 0.585E-04, 1.19E-04*"	11.58	2.349	80						AGE OF MINERALIZATION
3650	1	22.11	0.6	orthoclase	conventional K-Ar	NEVADA WONDER MINE	"4.72E-04, 0.585E-04, 1.19E-04*"	7.68	2.46	81						AGE OF MINERALIZATION
3651	1	109.71	4	hornblende	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.743	1.21	80			minimum age of intrusion	BETTER THAN 99% PURE; NO BIOTITE PRESENT		HORNBLENDE K-AR AGE MAY HAVE BEEN AFFECTED BY SUBSEQUENT THERMAL EVENT(S)
3651	2	83.4	3	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	10.2	88			age of later metamorphism	BETTER THAN 99% PURE		
3652	1	15.35	0.8	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.23	1.826	4359						AGE APPEARS TOO YOUNG
3652	2	22.36	1.2	sanidine	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	10.66	3.453	6176			minimum age of volcanism			AGE APPEARS TOO YOUNG
3653	1	26.74	0.8	biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	3.304	75			age of volcanism			AGE ALSO PUBLISHED BY MARVIN (1968)
3653	2	25.31	0.7	sanidine	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	4.56	1.673	85			minimum age of volcanism			AGE ALSO PUBLISHED BY MARVIN (1968)
3654	1	35.15	0.9	sanidine	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	12.56	6.419	97			age of intrusion			
3655	1	36.37	1.1	biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.23	4.353	6467			age of volcanism			
3655	2	33.37	1	sanidine	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	11.97	5.805	8995						AGE APPEARS TOO YOUNG
3656	1	25.57	1.5	glass	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	4.79	1.776	84			minimum age of volcanism	NONHYDRATED		
3657	1	21.22	1	biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	7.72	2.372	4049			age of volcanism			
3657	2	21.35	1	sanidine	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	10.52	3.253	8844			age of volcanism			
3658	1	22.23	0.8	sanidine	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	10.49	3.378	6866			age of volcanism			
3659	1	29.49	1.1	biotite	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	3.553	4952			age of volcanism			
3659	2	28.24	1	sanidine	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	11.42	4.679	8272			age of volcanism			
3660	1	33.58	1.3	biotite	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	4.118	7268			age of volcanism			
3660	2	31.63	0.9	sanidine	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	11.72	5.384	8848			age of volcanism			
3661	1	38.31	1.3	biotite	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	8.26	4.604	6162			age of volcanism			
3662	1	32.1	0.9	biotite	conventional K-Ar	18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.94	4.169	8052			age of volcanism			
3663	1	26.65	1.8	biotite	conventional K-Ar	19	"4.72E-04, 0.585E-04, 1.19E-04*"	8.35	3.228	38			age of volcanism			
3664	1	31.62	1.1	biotite	conventional K-Ar	20	"4.72E-04, 0.585E-04, 1.19E-04*"	8.4	3.858	6236			age of volcanism			
3664	2	30.83	0.9	sanidine	conventional K-Ar	20	"4.72E-04, 0.585E-04, 1.19E-04*"	11.96	5.354	7658			age of volcanism			
3665	1	30.92	0.9	biotite	conventional K-Ar	21	"4.72E-04, 0.585E-04, 1.19E-04*"	8.41	3.776	6361			age of volcanism			
3665	2	30.56	0.9	sanidine	conventional K-Ar	21	"4.72E-04, 0.585E-04, 1.19E-04*"	11.67	5.179	8082			age of volcanism			
3666	1	10.48	0.9	whole rock	conventional K-Ar	22	"4.72E-04, 0.585E-04, 1.19E-04*"	1.62	0.2452	2123			age of volcanism			
3667	1	31.45	0.9	biotite	conventional K-Ar	23	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	3.891	5755			age of volcanism			
3667	2	30.65	0.9	sanidine	conventional K-Ar	23	"4.72E-04, 0.585E-04, 1.19E-04*"	11.47	5.104	9082			age of volcanism			
3668	1	31.34	1.1	biotite	conventional K-Ar	24	"4.72E-04, 0.585E-04, 1.19E-04*"	8.08	3.678	1675			age of volcanism			
3669	1	24.03	1.6	biotite	conventional K-Ar	25	"4.72E-04, 0.585E-04, 1.19E-04*"	8.37	2.915	5560			age of volcanism			
3670	1	30.27	1	biotite	conventional K-Ar	26	"4.72E-04, 0.585E-04, 1.19E-04*"	8.46	3.718	86			age of volcanism		USGS ANALYSIS	
3670	2	31.67	1	biotite	conventional K-Ar	26	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	4.002	62			age of volcanism		GEOCHRON LABORATORIES ANALYSIS	
3670	3	28.16	1.1	sanidine	conventional K-Ar	26	"4.72E-04, 0.585E-04, 1.19E-04*"	11.3	4.618	96			age of volcanism		USGS ANALYSIS	
3670	4	29.91	0.7	sanidine	conventional K-Ar	26	"4.72E-04, 0.585E-04, 1.19E-04*"	11.3	4.906	7763			age of volcanism		GEOCHRON LABORATORIES ANALYSIS	
3671	1	28.88	1.8	biotite	conventional K-Ar	27	"4.72E-04, 0.585E-04, 1.19E-04*"	8.18	3.428	6879			age of volcanism			
3671	2	14.77	0.7	sanidine	conventional K-Ar	27	"4.72E-04, 0.585E-04, 1.19E-04*"	10.43	2.227	5159						SPURIOUS AGE
3672	1	29.36	2	biotite	conventional K-Ar	28	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	3.503	6678			age of volcanism			
3673	1	25.87	1	biotite	conventional K-Ar	30	"4.72E-04, 0.585E-04, 1.19E-04*"	7.87	2.952	4845			age of volcanism			
3673	2	24.76	0.9	sanidine	conventional K-Ar	30	"4.72E-04, 0.585E-04, 1.19E-04*"	12.13	4.353	7185			age of volcanism			
3674	1	20.97	1.2	biotite	conventional K-Ar	32	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	2.502	6970						AGE APPEARS TOO YOUNG
3674	2	23.28	0.9	sanidine	conventional K-Ar	32	"4.72E-04, 0.585E-04, 1.19E-04*"	11.79	3.978	9287			minimum age of volcanism			
3675	1	29.43	1.3	biotite	conventional K-Ar	33	"4.72E-04, 0.585E-04, 1.19E-04*"	8.61	3.678	3672			age of volcanism		GEOCHRON LABORATORIES ANALYSIS	
3675	2	27.01	1	biotite	conventional K-Ar	33	"4.72E-04, 0.585E-04, 1.19E-04*"	8.83	3.46	89			age of volcanism		USGS ANALYSIS	
3675	3	29.05	0.8	sanidine	conventional K-Ar	33	"4.72E-04, 0.585E-04, 1.19E-04*"	12.1	5.102	94			age of volcanism		USGS ANALYSIS	
3676	1	5.85	0.2	whole rock	conventional K-Ar	34	"4.72E-04, 0.585E-04, 1.19E-04*"	1.465	0.1236	51			age of volcanism			
3677	1	19.26	0.8	sanidine	conventional K-Ar	35	"4.72E-04, 0.585E-04, 1.19E-04*"	12.12	3.378	6972			age of intrusion			
3678	1	25.94	1.1	biotite	conventional K-Ar	36	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	3.114	85			age of volcanism			
3678	2	25.49	0.6	sanidine	conventional K-Ar	36	"4.72E-04, 0.585E-04, 1.19E-04*"	11.72	4.331	96			age of volcanism			
3679	1	26.78	1.3	glass	conventional K-Ar	37	"4.72E-04, 0.585E-04, 1.19E-04*"	4.83	1.876	8485			age of volcanism	NONHYDRATED		
3680	1	26.04	0.6	biotite	conventional K-Ar	38	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	3.24	77			age of volcanism			AGE ALSO PUBLISHED BY MARVIN (1968)
3680	2	24.44	0.6	sanidine	conventional K-Ar	38	"4.72E-04, 0.585E-04, 1.19E-04*"	5.42	1.92	85			age of volcanism			AGE ALSO PUBLISHED BY MARVIN (1968)
3681	1	24.27	1	biotite	conventional K-Ar	40	"4.72E-04, 0.585E-04, 1.19E-04*"	7.61	2.677	554819			age of volcanism		ARGON VALUE IS AVERAGE OF 3 ANALYSES	
3681	2	22.81	0.8	sanidine	conventional K-Ar	40	"4.72E-04, 0.585E-04, 1.19E-04*"	10.75	3.553	2021			age of volcanism			
3682	1	26.11	1.3	biotite	conventional K-Ar	41	"4.72E-04, 0.585E-04, 1.19E-04*"	8.46	3.203	7274			age of volcanism			
3683	1	28.31	0.9	biotite	conventional K-Ar	42	"4.72E-04, 0.585E-04, 1.19E-04*"	7.54	3.097	6370			age of volcanism		GEOCHRON LABORATORIES ANALYSIS	
3683	2	26.18	1	biotite	conventional K-Ar	42	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	2.973	87			age of volcanism		USGS ANALYSIS	
3683	3	22.56	0.7	sanidine	conventional K-Ar	42	"4.72E-04, 0.585E-04, 1.19E-04*"	11.36	3.713	8690			minimum age of volcanism		GEOCHRON LABORATORIES ANALYSIS	
3683	4	23.06	0.6	sanidine	conventional K-Ar	42	"4.72E-04, 0.585E-04, 1.19E-04*"	11.72	3.916	97			minimum age of volcanism		USGS ANALYSIS	
3684	1	30.65	1.2	biotite	conventional K-Ar	43	"4.72E-04, 0.585E-04, 1.19E-04*"	8.44	3.756	7472			age of volcanism		GEOCHRON LABORATORIES ANALYSIS	
3684	2	30.57	1	biotite	conventional K-Ar	43	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	3.649	87			age of volcanism		USGS ANALYSIS	
3684	3	27.82	1.1	sanidine	conventional K-Ar	43	"4.72E-04, 0.585E-04, 1.19E-04*"	11.63	4.694	9092			age of volcanism		GEOCHRON LABORATORIES ANALYSIS	
3684	4	30.39	0.7	sanidine	conventional K-Ar	43	"4.72E-04, 0.585E-04, 1.19E-04*"	11.48	5.066	96			age of volcanism		USGS ANALYSIS	
3685	1	27.65	0.8	biotite	conventional K-Ar	44	"4.72E-04, 0.585E-04, 1.19E-04*"	8.85	3.55	8789			age of volcanism			
3686	1	32.49	0.9	biotite	conventional K-Ar	45	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	3.918	7771			age of volcanism			
3686	2	32.79	1.4	sanidine	conventional K-Ar	45	"4.72E-04, 0.585E-04, 1.19E-04*"	12.29	5.855	6867			age of volcanism			
3687	1	31.23	0.9	biotite	conventional K-Ar	46	"4.72E-04, 0.585E-04, 1.19E-04*"	7.96	3.61	7270			age of volcanism			
3687	2	29.3	0.9	sanidine	conventional K-Ar	46	"4.72E-04, 0.585E-04, 1.19E-04*"	11.69	4.971	7690			age of volcanism			
3688	1	12.5	0.4	biotite	conventional K-Ar	60A	"4.72E-04, 0.585E-04, 1.19E-04"	7.66	1.71	62			age of volcanism		(*)	
3689	1	19.92	0.9	sanidine	conventional K-Ar	63	"4.72E-04, 0.585E-04, 1.19E-04*"	6.45	1.86	57			age of volcanism			
3690	1	23.37	1.3	sanidine	conventional K-Ar	64	"4.72E-04, 0.585E-04, 1.19E-04*"	5.7	1.93	40			age of volcanism			
3691	1	2.1	0.6	whole rock	conventional K-Ar	71	"4.72E-04, 0.585E-04, 1.19E-04*"	1.82	0.055	23			age of volcanism			
3692	1	23.12	0.7	biotite	conventional K-Ar	94	"4.72E-04, 0.585E-04, 1.19E-04*"	8.21	2.75	60			age of volcanism			AGE ALSO PUBLISHED BY MARVIN (1968)
3693	1	34.84	1.3	biotite	conventional K-Ar	95	"4.72E-04, 0.585E-04, 1.19E-04*"	8.55	4.33	74			age of volcanism			
3694	1	13.04	0.5	sanidine	conventional K-Ar	117	"4.72E-04, 0.585E-04, 1.19E-04*"	9.02	1.7	95			age of volcanism			
3695	1	14.38	0.2	biotite	conventional K-Ar	120	"4.72E-04, 0.585E-04, 1.19E-04*"	8.68	1.804	82			age of volcanism			
3696	1	13.96	0.2	biotite	conventional K-Ar	121	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	1.671	74			age of volcanism			
3697	1	13.48	0.2	biotite	conventional K-Ar	122	"4.72E-04, 0.585E-04, 1.19E-04*"	7.93	1.545	67			age of volcanism			
3698	1	14.03	0.2	biotite	conventional K-Ar	123	"4.72E-04, 0.585E-04, 1.19E-04*"	8.54	1.732	76			age of volcanism			
3699	1	12.3	0.4	whole rock	conventional K-Ar	124	"4.72E-04, 0.585E-04, 1.19E-04*"	4.78	0.8491				age of volcanism			
3700	1	13.9	0.3	biotite	conventional K-Ar	125	"4.72E-04, 0.585E-04, 1.19E-04*"	7.64	1.535	50			age of volcanism			
3701	1	31.66	3	biotite	conventional K-Ar	131	"4.72E-04, 0.585E-04, 1.19E-04*"	6.96	3.2	62			age of volcanism			AGE ALSO PUBLISHED BY MARVIN (1968)
3702	1	34.42	1.2	biotite	conventional K-Ar	134	"4.72E-04, 0.585E-04, 1.19E-04*"	8.08	4.043	5740					GEOCHRON LABORATORIES ANALYSIS	AGE APPEARS TOO OLD
3702	2	29.41	1.8	hornblende	conventional K-Ar	134	"4.72E-04, 0.585E-04, 1.19E-04*"	0.86	0.3671	74			age of volcanism		USGS ANALYSIS	
3703	1	34.04	1.2	sanidine	conventional K-Ar	135	"4.72E-04, 0.585E-04, 1.19E-04*"	10.12	5.006	8476						AGE APPEARS TOO OLD IN COMPARISON WITH OTHER AGES IN STRATIGRAPHIC SEQUENCE
3704	1	20.06	0.8	sanidine	conventional K-Ar	140	"4.72E-04, 0.585E-04, 1.19E-04*"	10.81	3.14	91			age of volcanism			THE RESULTS OF THIS SAME ANALYSIS IS REPORTED AS 19.6+/-2.8 IN EKRON AND OTHERS (1977)
3705	1	25.99	1	sanidine	conventional K-Ar	146	"4.72E-04, 0.585E-04, 1.19E-04*"	4.75	1.79	82			age of volcanism			
3706	1	15.49	0.6	sanidine	conventional K-Ar	147	"4.72E-04, 0.585E-04, 1.19E-04*"	6.52	1.46	72			age of volcanism			
3707	1	13.29	0.2	biotite	conventional K-Ar	155	"4.72E-04, 0.585E-04, 1.19E-04*"	7.66	1.471	75			age of volcanism			
3708	1	13.42	0.2	biotite	conventional K-Ar	158	"4.72E-04, 0.585E-04, 1.19E-04*"	6.39	1.239	78			age of volcanism			
3709	1	10.19	0.5	whole rock	conventional K-Ar	167	"4.72E-04, 0.585E-04, 1.19E-04*"	5.83	0.858	12			age of volcanism			
3710	1	12.62	0.4	whole rock	conventional K-Ar	172	"4.72E-04, 0.585E-04, 1.19E-04*"	2.45	0.4466	60			age of volcanism			
3711	1	12.79	0.2	biotite	conventional K-Ar	173	"4.72E-04, 0.585E-04, 1.19E-04*"	6.21	1.148	71			age of volcanism			
3712	1	14.19	0.2	biotite	conventional K-Ar	176	"4.72E-04, 0.585E-04, 1.19E-04*"	8	1.641	57			age of volcanism			
3713	1	15.74	0.47	hornblende	conventional K-Ar	KA2493	"4.72E-04, 0.585E-04, 1.19E-04*"	0.7891	0.1796	41			age of volcanism			
3714	1	12.41	0.39	plagioclase	conventional K-Ar	KA2362	"4.72E-04, 0.585E-04, 1.19E-04*"	0.6478	0.1161	41			age of volcanism			
3714	2	12.36	0.5	hornblende	conventional K-Ar	KA2364	"4.72E-04, 0.585E-04, 1.19E-04*"	0.742	0.1325	29			age of volcanism			
3714	3	12.64	0.31	biotite	conventional K-Ar	KA2368	"4.72E-04, 0.585E-04, 1.19E-04*"	7.376	1.3469	31			age of volcanism			
3715	1	12.73	0.17	biotite	conventional K-Ar	KA2372	"4.72E-04, 0.585E-04, 1.19E-04*"	6.612	1.2161	42			age of intrusion			
3715	2	13.25	0.45	hornblende	conventional K-Ar	KA2373	"4.72E-04, 0.585E-04, 1.19E-04*"	0.76	0.1456	36			age of intrusion			
3716	1	11.69	0.54	biotite	conventional K-Ar	KA2379R	"4.72E-04, 0.585E-04, 1.19E-04*"	7.362	1.2426	18			age of volcanism			
3717	1	13.29	0.39	plagioclase	conventional K-Ar	KA2375	"4.72E-04, 0.585E-04, 1.19E-04*"	0.6311	0.1212	46			age of volcanism			
3717	2	12	0.5	hornblende	conventional K-Ar	KA2380	"4.72E-04, 0.585E-04, 1.19E-04*"	0.8059	0.1147	28			age of volcanism		(*)	
3718	1	12	0.34	plagioclase	conventional K-Ar	KA2381	"4.72E-04, 0.585E-04, 1.19E-04*"	0.6981	0.121	49			age of volcanism			
3718	2	13.17	0.67	hornblende	conventional K-Ar	KA2440	"4.72E-04, 0.585E-04, 1.19E-04*"	0.7032	0.1338	22			age of volcanism			
3719	1	10.98	1.45	plagioclase	conventional K-Ar	KA2438	"4.72E-04, 0.585E-04, 1.19E-04*"	0.5004	0.0793	8			minimum age of volcanism			AGE APPEARS LOW
3719	2	13.49	0.45	hornblende	conventional K-Ar	KA2503	"4.72E-04, 0.585E-04, 1.19E-04*"	0.7942	0.1548	36			age of volcanism			
3720	1	11.8	0.24	hornblende	conventional K-Ar	KA2501	"4.72E-04, 0.585E-04, 1.19E-04*"	0.868	0.148	64			age of volcanism			
3720	2	9.84	0.09	biotite	conventional K-Ar	KA2434	"4.72E-04, 0.585E-04, 1.19E-04*"	7.983	1.1342	61						AGE APPEARS SOMEWHAT LOW
3721	1	11.79	0.52	plagioclase	conventional K-Ar	KA2581	"4.72E-04, 0.585E-04, 1.19E-04*"	0.7427	0.1265	26			age of volcanism			
3722	1	9.74	0.44	plagioclase	conventional K-Ar	KA2431	"4.72E-04, 0.585E-04, 1.19E-04*"	0.7289	0.1025	29			age of volcanism			
3722	2	10.87	0.49	hornblende	conventional K-Ar	KA2432	"4.72E-04, 0.585E-04, 1.19E-04*"	0.7805	0.1225	25			age of volcanism			
3723	1	9.68	0.44	hornblende	conventional K-Ar	KA2439	"4.72E-04, 0.585E-04, 1.19E-04*"	0.6671	0.0932	24			age of volcanism			
3724	1	6.98	0.3	whole rock	conventional K-Ar	KA2341	"4.72E-04, 0.585E-04, 1.19E-04*"	2.426	0.2443	19			age of volcanism			
3725	1	6.93	0.06	whole rock	conventional K-Ar	KA2365	"4.72E-04, 0.585E-04, 1.19E-04*"	2.197	0.2195	64			age of volcanism			
3726	1	6.74	0.27	whole rock	conventional K-Ar	KA2366	"4.72E-04, 0.585E-04, 1.19E-04*"	2.562	0.2489	20			age of volcanism			
3727	1	6.75	0.12	whole rock	conventional K-Ar	KA2367	"4.72E-04, 0.585E-04, 1.19E-04*"	2.296	0.2235	41			age of volcanism			
3728	1	7.38	0.07	whole rock	conventional K-Ar	KA2369	"4.72E-04, 0.585E-04, 1.19E-04*"	2.096	0.223	66			age of volcanism			
3729	1	7.84	0.15	whole rock	conventional K-Ar	KA2496	"4.72E-04, 0.585E-04, 1.19E-04*"	1.9498	0.2206	42			age of volcanism			
3730	1	7.54	0.24	whole rock	conventional K-Ar	KA2497	"4.72E-04, 0.585E-04, 1.19E-04*"	1.667	0.1812	25			age of volcanism			
3731	1	7.67	0.3	whole rock	conventional K-Ar	KA2582	"4.72E-04, 0.585E-04, 1.19E-04*"	1.269	0.1403	26			age of volcanism			
3732	1	7.57	0.24	biotite	conventional K-Ar	KA2370	"4.72E-04, 0.585E-04, 1.19E-04*"	7.556	0.8255	25			age of volcanism			
3732	2	5.85	0.06	sanidine - plagioclase	conventional K-Ar	KA2502	"4.72E-04, 0.585E-04, 1.19E-04*"	3.113	0.2625	60			minimum age of volcanism			
3733	1	7.21	0.12	biotite	conventional K-Ar	KA2435	"4.72E-04, 0.585E-04, 1.19E-04*"	7.9563	0.827	42			age of volcanism			
3733	2	6.82	0.34	sanidine - plagioclase	conventional K-Ar	KA2437	"4.72E-04, 0.585E-04, 1.19E-04*"	4.563	0.4488	17			age of volcanism			
3734	1	7.32	0.16	biotite	conventional K-Ar	KA2428R	"4.72E-04, 0.585E-04, 1.19E-04*"	7.71	0.814	33			age of volcanism			
3734	2	6.09	0.05	sanidine - plagioclase	conventional K-Ar	KA2427	"4.72E-04, 0.585E-04, 1.19E-04*"	5.039	0.4425	74			minimum age of volcanism			
3735	1	5.91	0.7	plagioclase	conventional K-Ar	KA2494	"4.72E-04, 0.585E-04, 1.19E-04*"	0.8054	0.0686	9			age of volcanism			
3736	1	6.94	0.05	biotite	conventional K-Ar	KA2436	"4.72E-04, 0.585E-04, 1.19E-04*"	8.631	0.8636	60			age of volcanism			
3737	1	5.02	0.26	hornblende	conventional K-Ar	KA2491	"4.72E-04, 0.585E-04, 1.19E-04"	0.8872	0.042	21			age of volcanism		(*)	
3737	2	5.13	0.35	biotite	conventional K-Ar	KA2513	"4.72E-04, 0.585E-04, 1.19E-04*"	6.991	0.5169	13			age of volcanism			
3738	1	10.82	0.3	adularia	conventional K-Ar	USGS(M)-TA-1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.15	1.273	2327						AGE OF MINERALIZATION
3739	1	32.61	1.2	biotite	conventional K-Ar	UCMP D-3426	"4.72E-04, 0.585E-04, 1.19E-04*"	8.423	3.991	6971			age of volcanism			"THIS AGE IS NEAR THE UPPER LIMIT OF THE CHADRONIAN NORTH AMERICAN LAND MAMMAL AGE (EVERNDEN AND OTHERS, 1964)"
3740	1	129.9	3	biotite	conventional K-Ar	YAG 767	"4.72E-04, 0.584E-04, 1.19E-04*"	8.38	16.25	90			age of intrusion			"AGREES WITH 124 M.Y. DATE BY MCDOWELL, 1966, BUT NOT WITH 150 M.Y. DATE REPORTED BY COATS AND OTHERS, 1965"
3741	1	153.1	3	biotite	conventional K-Ar	YAG 86	"4.72E-04, 0.584E-04, 1.19E-04*"	4.46	10.26	89			age of intrusion	A BIOTITE-HORNBLENDE MIXTURE		
3742	1	157.07	3	biotite - muscovite	conventional K-Ar	YAG 85	"4.72E-04, 0.584E-04, 1.19E-04*"	8.74	20.65	82			age of intrusion	5% CHLORITE PRESENT		
3743	1	154.18	3	biotite	conventional K-Ar	YAG 133	"4.72E-04, 0.584E-04, 1.19E-04*"	6.87	15.92	83			age of volcanism	7% GROUNDMASS PRESENT		
3744	1	136.73	3	hornblende	conventional K-Ar	YAG 131	"4.72E-04, 0.584E-04, 1.19E-04*"	0.489	1	4051			minimum age of intrusion	5% CHLORITE AND 5% ROCK IMPURITIES PRESENT		"THE LOW AGE MAY BE DUE TO ""DUTERIC"" ALTERATION"
3745	1	127.58	3	hornblende	conventional K-Ar	YAG 127	"4.72E-04, 0.584E-04, 1.19E-04*"	0.403	0.767	3842			minimum age of intrusion	3% CHLORITE AND 5% ROCK IMPURITIES PRESENT		"LOW AGE MAY BE DUE TO ""DUTERIC"" ALTERATION"
3746	1	143.95	3	hornblende	conventional K-Ar	YAG 126	"4.72E-04, 0.584E-04, 1.19E-04*"	0.89	1.92	46			minimum age of intrusion	2% CHLORITE AND 5% ROCK PRESENT		
3747	1	108.51	2	hornblende	conventional K-Ar	YAG 38	"4.72E-04, 0.584E-04, 1.19E-04*"	2.36	3.8	84			age of intrusion	4% BIOTITE AND 3% ROCK PRESENT		"AGREES WITH 109 M.Y. DATE OF MCDOWELL AND KULP, 1967"
3748	1	108.65	2	muscovite	conventional K-Ar	YAG 181	"4.72E-04, 0.584E-04, 1.19E-04*"	11.27	18.17	87						K-AR AGE HAS BEEN REDUCED BY A TERTIARY THERMAL
3749	1	67.73	1.4	muscovite	conventional K-Ar	YAG 184	"4.72E-04, 0.584E-04, 1.19E-04*"	8.29	8.237	77				5% BIOTITE AND 7% CHLORITE PRESENT		AGE HAS BEEN REDUCED BY SOME RECENT THERMAL EVENT
3750	1	113.47	2	muscovite - biotite	conventional K-Ar	YAG 190M	"4.72E-04, 0.584E-04, 1.19E-04*"	7.74	13.05	79				5% CHLORITE AND 5% ROCK PRESENT		AGE IS PROBABLY A HYBRID AGE DUE TO A TERTIARY THERMAL EVENT--THRUST FAULTING
3751	1	84.54	1	muscovite	conventional K-Ar	YAG 186	"4.72E-04, 0.584E-04, 1.19E-04*"	10.04	12.51	82						AGE IS PROBABLY A HYBRID AGE
3752	1	83.65	1.6	muscovite	conventional K-Ar	YAG 187	"4.72E-04, 0.584E-04, 1.19E-04*"	9.63	11.87	82				5% ROCK PRESENT		PROBABLY A HYBRID AGE
3753	1	12.48		hornblende	conventional K-Ar	66C422	"4.72E-04, 0.584E-04, 1.19E-04*"	0.517	0.0932	23			age of volcanism			
3754	1	12.96		biotite	conventional K-Ar	67W85	"4.72E-04, 0.584E-04, 1.19E-04*"	8.28	1.55	50			age of intrusion			
3755	1	12.22		hornblende	conventional K-Ar	67W86	"4.72E-04, 0.584E-04, 1.19E-04*"	0.748	0.132	33			age of volcanism			
3756	1	18.08		hornblende	conventional K-Ar	66CH213	"4.72E-04, 0.584E-04, 1.19E-04*"	0.558	0.146	34			age of volcanism			
3757	1	21.68		hornblende	conventional K-Ar	66CH159	"4.72E-04, 0.584E-04, 1.19E-04*"	0.742	0.233	36			age of intrusion			
3758	1	27.61		hornblende	conventional K-Ar	67W152	"4.72E-04, 0.584E-04, 1.19E-04*"	0.644	0.258	39			age of volcanism			
3759	1	137.45	1.5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.691	17.87	92			age of intrusion	"FRESH, UNALTERED BIOTITE"		
3760	1	139.3	2	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.691	18.12	85			age of intrusion	FRESH BIOTITE FROM DIAMOND DRILL-CORE		
3761	1	90.01	3.4	sericite	conventional K-Ar	KIR-114	"4.72E-04, 0.585E-04, 1.19E-04*"	4.87	6.471	6357				2M(SUB 1) MUSCOVITE		AGE OF MINERALIZATION & ALTERATION
3762	1	90.79	3.3	sericite	conventional K-Ar	MAR-103	"4.72E-04, 0.585E-04, 1.19E-04*"	8.69	11.65	7079				2M(SUB 1) MUSCOVITE		AGE OF MINERALIZATION & ALTERATION
3763	1	94.74	2.8	sericite	conventional K-Ar	MB55	"4.72E-04, 0.585E-04, 1.19E-04*"	9.19	12.87	97			age of intrusion	2M(SUB 1) MUSCOVITE		ALSO AGE OF MINERALIZATION AND ALTERATION(?)
3764	1	94.44	2.8	sericite	conventional K-Ar	SEC. 4	"4.72E-04, 0.585E-04, 1.19E-04*"	10.33	14.42	98			age of intrusion	2M(SUB 1) MUSCOVITE		ALSO AGE OF MINERALIZATION AND ALTERATION(?)
3765	1	76.5	2.2	orthoclase	conventional K-Ar	GL-3A	"4.72E-04, 0.585E-04, 1.19E-04*"	14.39	16.19	96			age meaning uncertain (geologic factors)			
3765	2	68.68	2	sericite	conventional K-Ar	GL-3A	"4.72E-04, 0.585E-04, 1.19E-04*"	9.17	9.242	86			age meaning uncertain (geologic factors)	"FINE GRAINED, LESS THAN 0.01 MM"		
3765	3	82.86	3.3	sericite	conventional K-Ar	GL-3A	"4.72E-04, 0.585E-04, 1.19E-04*"	5.94	7.251	89			age meaning uncertain (geologic factors)	COARSE-GRAINED 0.1 TO 0.6 MM		
3766	1	14.5	1.4	glass	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	6.06	1.27	24			minimum age of volcanism			AGE MAY BE TOO YOUNG
3766	2	16.65	1.3	sanidine	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	7.31	1.76	31			age of volcanism			
3766	3	22.83	1.8	K feldspar	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	5.35	1.77	31						AUTHORS CONSIDER THIS AGE UNREASONABLE WHEN COMPARED WITH AGES OF OTHER VOLCANIC UNITS
3767	1	17.1	1.5	plagioclase	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.54	0.1334	14			age of volcanism			
3768	1	25.4	2	plagioclase	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	0.52	0.1907	7			maximum age of volcanism			AGE MAY BE CONSIDERABLY TOO OLD
3769	1	16.47	0.5	K feldspar	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	6.13	1.46	70			age of volcanism			
3770	1	18.33	0.5	K feldspar	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	5.43	1.44	70			age of volcanism			
3771	1	18.33	0.5	sanidine	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	2.18	71			age of volcanism			
3772	1	18.08	0.5	K feldspar	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	2.37	0.62	56			age of volcanism			
3773	1	18.01	0.5	K feldspar	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	5.45	1.42	67			age of volcanism			
3774	1	13.9	0.6	glass	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	4.5	0.909	11			age of intrusion	NONHYDRATED		
3776	1	14.82	0.7	biotite	conventional K-Ar	27	"4.72E-04, 0.585E-04, 1.19E-04*"	7.98	1.71	14			age of volcanism			
3777	1	15.21	0.7	biotite	conventional K-Ar	28	"4.72E-04, 0.585E-04, 1.19E-04*"	7.96	1.75	77			age of volcanism			
3777	2	14.07	1.7	hornblende	conventional K-Ar	28	"4.72E-04, 0.585E-04, 1.19E-04*"	0.88	0.179	61			age of volcanism			
3778	1	28.62	0.8	biotite	conventional K-Ar	30	"4.72E-04, 0.585E-04, 1.19E-04*"	7.03	2.92	30			age of volcanism			
3779	1	15.14	0.5	plagioclase	conventional K-Ar	31	"4.72E-04, 0.585E-04, 1.19E-04*"	1.32	0.289	76			age of volcanism			
3780	1	30.4		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3781	1	99	5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3782	1	27.12	0.7	biotite	conventional K-Ar	LFL-66-GLD-71	"4.72E-04, 0.585E-04, 1.19E-04*"	7.645	3.008	76			age of volcanism		POTASSIUM VALUE DETERMINED BY ISOTOPE DILUTION	ANALYTICAL DATA CAME FROM MARVIN AND COLE (1978). NEW DECAY CONSTANTS CHANGE THE AGE TO 27.1 M.Y.
3783	1	65.09	1.2	muscovite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	10.475	9.995	82			initial age disturbed by later metamorphism		"8.70, 8.69% K"	
3784	1	48.35	1	muscovite	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	10.246	7.228	80			initial age disturbed by later metamorphism		"8.50, 8.51% K"	
3785	1	34.46	1	biotite	conventional K-Ar	W1421	"4.72E-04, 0.585E-04, 1.19E-04*"	8.59	4.303	89			age of intrusion			
3785	2	33.65	1	sanidine	conventional K-Ar	W1421	"4.72E-04, 0.585E-04, 1.19E-04*"	12.46	6.093	76			age of intrusion			
3786	1	32.89	1	biotite	conventional K-Ar	W1416	"4.72E-04, 0.585E-04, 1.19E-04*"	8.39	4.009	81			age of volcanism			
3786	2	33.57	1	sanidine	conventional K-Ar	W1416	"4.72E-04, 0.585E-04, 1.19E-04*"	11.19	5.459	90			age of volcanism			
3787	1	32.3		Unk		(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism			
3790	1	39.4	1.5	adularia	conventional K-Ar	USGS(M)01063(67NC13)	"4.72E-04, 0.585E-04, 1.19E-04*"	14.82	8.5	75						AGE OF MINERALIZATION
3791	1	41		biotite		(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3792	1	26.76	0.8	sanidine	conventional K-Ar	USGS RM1	"4.72E-04, 0.585E-04, 1.19E-04*"	12.26	4.758	76			age of volcanism			
3793	1	16.41	0.5	adularia	conventional K-Ar	USGS-DRS 120-68	"4.72E-04, 0.585E-04, 1.19E-04*"	15.97	3.79	90				SANIDINE STRUCTURE		AGE OF MINERALIZATION; THIS AGE ALSO PUBLISHED BY SILBERMAN AND MCKEE (1974) WITHOUT DEFINITE LOCATION OR ANALYTICAL DATA
3794	1	25.88	0.8	adularia	conventional K-Ar	USGS-DRS 146-68	"4.72E-04, 0.585E-04, 1.19E-04*"	15.76	5.915	72				SANIDINE STRUCTURE		AGE OF MINERALIZATION; THIS AGE ALSO PUBLISHED BY SILBERMAN AND MCKEE (1974) WITHOUT DEFINITE LOCATION OR ANALYTICAL DATA
3795	1	128.68	4	muscovite	conventional K-Ar	CAN-1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.28	17.82	96						AGE OF ALTERATION (MINERALIZATION)
3796	1	23.38	0.7	sanidine	conventional K-Ar	CAN-3	"4.72E-04, 0.585E-04, 1.19E-04*"	11.18	3.788	98			age of volcanism			
3797	1	4.03	0.4	whole rock	conventional K-Ar	CAN-2	"4.72E-04, 0.585E-04, 1.19E-04*"	2.12	0.1231	1520			minimum age of volcanism		TWO ARGON ANALYSES	
3798	1	8.75	0.3	whole rock	conventional K-Ar	2701-2	"4.72E-04, 0.585E-04, 1.19E-04*"	1.69	0.2135	51			age of volcanism			
3799	1	14.96	0.4	biotite	conventional K-Ar	R-11	"4.72E-04, 0.585E-04, 1.19E-04*"	8.09	1.75	69			age of volcanism			
3799	2	15.05	0.4	sanidine	conventional K-Ar	R-11	"4.72E-04, 0.585E-04, 1.19E-04*"	8.93	1.943	90			age of volcanism			
3800	1	15.93	0.5	muscovite	conventional K-Ar	R-7	"4.72E-04, 0.585E-04, 1.19E-04*"	6.07	1.398	70						MINIMUM AGE OF ALTERATION
3801	1	15.72	0.5	biotite	conventional K-Ar	CD-31	"4.72E-04, 0.585E-04, 1.19E-04*"	9.1	2.068	47			age of volcanism			
3801	2	16.12	0.7	plagioclase	conventional K-Ar	CD-31	"4.72E-04, 0.585E-04, 1.19E-04*"	1.17	0.2727	34			age of volcanism			
3802	1	15.43	0.5	adularia	conventional K-Ar	CD-8	"4.72E-04, 0.585E-04, 1.19E-04*"	9.8	2.187	71				ORTHOCLASE STRUCTURE DETERMINED BY X-RAY		AGE OF MINERALIZATION
3803	1	158.94	3	biotite	conventional K-Ar	MB43	"4.72E-04, 0.585E-04, 1.19E-04*"	9.08	21.72	94			age not evaluated			
3803	2	171.97	3	hornblende	conventional K-Ar	MB43	"4.72E-04, 0.585E-04, 1.19E-04*"	0.701	1.821	87			age of intrusion			
3804	1	8.41	0.6	whole rock	conventional K-Ar	E-15	"4.72E-04, 0.585E-04, 1.19E-04*"	0.2	0.0243	13			age of volcanism			
3805	1	8.01	0.5	whole rock	conventional K-Ar	54NC93	"4.72E-04, 0.585E-04, 1.19E-04*"	0.19	0.022	20			age of volcanism			
3806	1	10.87	1	whole rock	conventional K-Ar	61NC18	"4.72E-04, 0.585E-04, 1.19E-04*"	0.35	0.0549	7			age of intrusion			
3807	1	8.69	0.7	whole rock	conventional K-Ar	6238-2J	"4.72E-04, 0.585E-04, 1.19E-04*"	0.34	0.0427	10			age of volcanism			
3808	1	23.04	0.7	biotite	conventional K-Ar	6-147	"4.72E-04, 0.585E-04, 1.19E-04*"	8.245	2.753	62			age of volcanism			
3809	1	14.76	0.4	plagioclase	conventional K-Ar	6-144	"4.72E-04, 0.585E-04, 1.19E-04*"	0.3395	0.0725	46			age of volcanism			
3810	1	15.24	0.4	hornblende	conventional K-Ar	May-71	"4.72E-04, 0.585E-04, 1.19E-04*"	0.6065	0.1336	20			age of intrusion			
3810	2	14.51	0.4	biotite	conventional K-Ar	May-71	"4.72E-04, 0.585E-04, 1.19E-04*"	8.03	1.684	53			age of intrusion			
3811	1	14.16	0.3	biotite	conventional K-Ar	5-267	"4.72E-04, 0.585E-04, 1.19E-04*"	5.97	1.222	60			age of volcanism			
3812	1	14.01	1.6	hornblende	conventional K-Ar	Apr-57	"4.72E-04, 0.585E-04, 1.19E-04*"	0.523	0.1059	8			minimum age of volcanism			
3813	1	13.01	0.4	biotite	conventional K-Ar	6-153	"4.72E-04, 0.585E-04, 1.19E-04*"	6.54	1.229	57			age of intrusion			
3813	2	13.24	0.4	hornblende	conventional K-Ar	6-153	"4.72E-04, 0.585E-04, 1.19E-04*"	0.58	0.111	37			age of intrusion			
3814	1	12.73	0.3	biotite	conventional K-Ar	96-159	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	1.508	41			age of intrusion			
3815	1	12.63	0.2	biotite	conventional K-Ar	99-157	"4.72E-04, 0.585E-04, 1.19E-04*"	7.38	1.347	65			age of volcanism			
3816	1	14.08	0.4	adularia	conventional K-Ar	May-89	"4.72E-04, 0.585E-04, 1.19E-04*"	15.82	3.22	91						AGE OF MINERALIZATION
3817	1	13.15	0.4	adularia	conventional K-Ar	May-41	"4.72E-04, 0.585E-04, 1.19E-04*"	16.14	3.066	70						AGE OF MINERALIZATION
3819	1	31.97	1	sanidine	conventional K-Ar	SR-476	"4.72E-04, 0.585E-04, 1.19E-04*"	7.075	3.285	90			age of volcanism		"ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS"	
3820	1	32.65	1.1	whole rock	conventional K-Ar	SR-425	"4.72E-04, 0.585E-04, 1.19E-04*"	2.475	1.174	86			age of intrusion		"ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS"	
3821	1	38.5	1.3	biotite	conventional K-Ar	SR-377	"4.72E-04, 0.585E-04, 1.19E-04*"	6.6	3.698	85			age of volcanism		"ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS"	
3822	1	37.8	1	biotite	conventional K-Ar	SR-442	"4.72E-04, 0.585E-04, 1.19E-04*"	8.79	4.83	82			age of intrusion		"ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS"	
3822	2	36.3	1.1	sanidine	conventional K-Ar	SR-442	"4.72E-04, 0.585E-04, 1.19E-04*"	11.76	6.21	92			age of intrusion		"ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS"	
3824	1	27.1	0.9	biotite	conventional K-Ar	267	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3825	1	28	1	biotite	conventional K-Ar	675	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3825	2	25.1	1.8	plagioclase	conventional K-Ar	675	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of volcanism		NO ANALYTICAL DATA GIVEN	
3826	1	27.8	1	biotite	conventional K-Ar	661	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3826	2	26.1	0.9	sanidine	conventional K-Ar	661	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of volcanism		NO ANALYTICAL DATA GIVEN	
3827	1	27.2	1.1	biotite	conventional K-Ar	S-29	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3827	2	31.7	1.8	hornblende	conventional K-Ar	S-29	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3828	1	24.1	0.9	biotite	conventional K-Ar	662	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3828	2	23.6	2	plagioclase	conventional K-Ar	662	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3829	1	18.7	1.9	hornblende	conventional K-Ar	671	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3829	2	17	2.5	plagioclase	conventional K-Ar	671	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3830	1	17.7	2.4	hornblende	conventional K-Ar	665	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3831	1	18.5	2.5	hornblende	conventional K-Ar	602	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3831	2	18.9	2.8	plagioclase	conventional K-Ar	602	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3832	1	18.7	2.5	hornblende	conventional K-Ar	664	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3832	2	18.5	2.7	plagioclase	conventional K-Ar	664	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3832	3	14.2	0.6	biotite	conventional K-Ar	664	"4.72E-04, 0.585E-04, 1.19E-04"								NO ANALYTICAL DATA GIVEN	AGE SEEMS RATHER LOW IN COMPARISON WITH HORNBLENDE AND PLAGIOCLASE AGES
3833	1	28.8		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of volcanism		NO ANALYTICAL DATA GIVEN	
3834	1	164.39	5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.68	19.03	90			age of intrusion			
3835	1	164.04	5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.06	22.4	92			age of intrusion			
3837	1	22.73	0.6	sanidine	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.17	2.69	67			age of volcanism			
3838	1	24.32	0.6	sanidine	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	10.47	3.69	84			age of volcanism			
3839	1	28.4	0.7	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.3	3.42	78			age of volcanism			
3840	1	31.38	0.8	biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	7.68	3.5	71			age of volcanism			
3841	1	30.8		biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	7.58	3.39	54			age of volcanism			
3842	1	31.87	0.8	sanidine	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	9.96	4.61	85			age of volcanism			
3843	1	32.06	0.8	sanidine	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	12.09	5.63	91			age of volcanism			
3844	1	33.13	0.8	sanidine	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	10.2	4.91	92			age of volcanism			
3845	1	14.14	0.8	biotite	conventional K-Ar	62NC130	"4.72E-04, 0.585E-04, 1.19E-04*"	9.01	1.841	91			age of volcanism			
3846	1	40.6	2	sanidine	conventional K-Ar	62NC55	"4.72E-04, 0.585E-04, 1.19E-04*"	11.03	6.52	62			age of volcanism			
3847	1	15.93	0.7	plagioclase	conventional K-Ar	62NC182	"4.72E-04, 0.585E-04, 1.19E-04*"	1.885	0.4343	80			age of volcanism		"1.87%, 1.90% K2O"	
3848	1	16.36	0.7	plagioclase	conventional K-Ar	62NC181	"4.72E-04, 0.585E-04, 1.19E-04*"	2.825	0.6685	92			age of volcanism		"2.75%, 2.90% K2O"	
3849	1	34.23	3.3	biotite	conventional K-Ar	59NC143	"4.72E-04, 0.585E-04, 1.19E-04*"	5.69	2.831	18			age of volcanism			
3850	1	40.6	2	biotite	conventional K-Ar	60NC81	"4.72E-04, 0.585E-04, 1.19E-04*"	8.61	5.09	80			age of volcanism			
3851	1	16.59	0.7	plagioclase	conventional K-Ar	62NC183	"4.72E-04, 0.585E-04, 1.19E-04*"	2.96	0.7101	78			age of volcanism		"2.93%, 2.99% K2O"	
3852	1	15.37	0.7	plagioclase	conventional K-Ar	62NC184	"4.72E-04, 0.585E-04, 1.19E-04*"	3.66	0.8135	81			age of volcanism		"3.62%, 3.70% K2O"	
3853	1	41.06	1.2	biotite	conventional K-Ar	65NC69	"4.72E-04, 0.585E-04, 1.19E-04*"	8	4.7832	80			age of volcanism			
3854	1	43.44	1.5	biotite	conventional K-Ar	65NC54	"4.72E-04, 0.585E-04, 1.19E-04*"	8.42	5.33	65			age of volcanism		"8.41%, 8.43% K2O"	
3855	1	14.37	1.1	biotite	conventional K-Ar	59NC89	"4.72E-04, 0.585E-04, 1.19E-04*"	4.84	1.005	22				LEACHED OR ALTERED BIOTITE		"AGE VERY QUESTIONABLE, PROBABLY TOO YOUNG, DUE TO ALTERATION OF BIOTITE"
3856	1	30.85	1	sanidine	conventional K-Ar	66NC81	"4.72E-04, 0.585E-04, 1.19E-04*"	10.56	4.73	87			age of volcanism		"10.58%, 10.53% K2O"	
3857	1	23.52	3	plagioclase	conventional K-Ar	62NC46	"4.72E-04, 0.585E-04, 1.19E-04*"	0.2385	0.0813	11			age of volcanism		"0.240%, 0.237% K2O"	
3858	1	14.92	0.9	sanidine	conventional K-Ar	62NC111	"4.72E-04, 0.585E-04, 1.19E-04*"	10.98	2.369	50			age of volcanism			
3859	1	15.89	0.7	plagioclase	conventional K-Ar	64NC73	"4.72E-04, 0.585E-04, 1.19E-04*"	2.965	0.6813	88			age of volcanism		"2.97%, 2.96% K2O"	
3860	1	44.71	2.2	biotite	conventional K-Ar	63NC77	"4.72E-04, 0.585E-04, 1.19E-04*"	7.75	5.051	70			age of volcanism			
3861	1	38.97	1.1	biotite	conventional K-Ar	66NC109	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	4.963	81			age of volcanism			
3862	1	42.88	1.5	biotite	conventional K-Ar	57NC90	"4.72E-04, 0.585E-04, 1.19E-04*"	7.9	4.935	56			age of volcanism		"7.81%, 7.99% K2O"	
3863	1	15.76	0.5	sanidine	conventional K-Ar	66NC20	"4.72E-04, 0.585E-04, 1.19E-04*"	6.785	1.546	44			age of volcanism		"6.78%, 6.79% K2O"	
3864	1	34.77	1	biotite	conventional K-Ar	70NC106	"4.72E-04, 0.585E-04, 1.19E-04*"	8.72	4.408	82			age of intrusion			
3865	1	38.72	1.1	biotite	conventional K-Ar	70NC101	"4.72E-04, 0.585E-04, 1.19E-04*"	8.39	4.727	72			age of intrusion			
3866	1	15.35	0.4	adularia	conventional K-Ar	DRS-9-67	"4.72E-04, 0.585E-04, 1.19E-04*"	15.36	3.41	95						AGE OF MINERALIZATION
3867	1	32.95	1.1	sanidine	conventional K-Ar	66NC148	"4.72E-04, 0.585E-04, 1.19E-04*"	12.16	5.822	67			age of volcanism			
3868	1	40.26	1.2	biotite	conventional K-Ar	71NC291	"4.72E-04, 0.585E-04, 1.19E-04*"	7.91	4.636	78			age of volcanism			
3869	1	38.86	1	biotite	conventional K-Ar	70NC96	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	4.638	90			age of volcanism			
3870	1	34.44	1.6	biotite	conventional K-Ar	68NC114	"4.72E-04, 0.585E-04, 1.19E-04*"	6.645	3.326	30			age of volcanism		"6.63%, 6.66% K2O"	
3871	1	36.3	1.1	biotite	conventional K-Ar	68NC159	"4.72E-04, 0.585E-04, 1.19E-04*"	8.8	4.646	67			age of volcanism		"8.80%, 8.80% K2O"	
3872	1	42.13	1.2	biotite	conventional K-Ar	67NC23	"4.72E-04, 0.585E-04, 1.19E-04*"	8.375	5.139	67			age of volcanism		"8.38%, 8.37% K2O"	
3873	1	39.39	1.1	adularia	conventional K-Ar	67NC13	"4.72E-04, 0.585E-04, 1.19E-04*"	14.82	8.496	75					"14.87%, 14.77% K2O"	AGE OF MINERALIZATION
3874	1	36.3	1	whole rock	conventional K-Ar	70NC28	"4.72E-04, 0.585E-04, 1.19E-04*"	3.05	1.61	90			age of volcanism			
3875	1	41.67	1.2	biotite	conventional K-Ar	69NC41	"4.72E-04, 0.585E-04, 1.19E-04*"	8.63	5.238	85			age of volcanism			
3876	1	37.18	1.1	biotite	conventional K-Ar	H-64-132	"4.72E-04, 0.585E-04, 1.19E-04*"	8.87	4.797	75			age of volcanism		"8.83%, 8.91% K2O"	
3877	1	39.67	1.5	biotite	conventional K-Ar	H-64-49	"4.72E-04, 0.585E-04, 1.19E-04*"	8.745	5.05	86			age of volcanism		"8.59%, 8.90% K2O"	
3878	1	35.4	1.4	biotite	conventional K-Ar	B66-210	"4.72E-04, 0.585E-04, 1.19E-04*"	8.38	4.318	62			age of volcanism		"8.38%, 8.38% K2O"	
3879	1	35.71	1	sanidine	conventional K-Ar	CB-64-43	"4.72E-04, 0.585E-04, 1.19E-04*"	10.18	5.286	88			age of volcanism		"10.18%, 10.18% K2O"	
3879	2	33.56	1	biotite	conventional K-Ar	CB-64-43	"4.72E-04, 0.585E-04, 1.19E-04*"	7.725	3.767	72			age of volcanism		"7.67%, 7.78% K2O"	
3880	1	34.51	1.3	plagioclase	conventional K-Ar	H-64-148	"4.72E-04, 0.585E-04, 1.19E-04*"	0.4615	0.2315	49			age of volcanism		"0.459%, 0.464% K2O"	
3880	2	36.08	1	biotite	conventional K-Ar	H-64-148	"4.72E-04, 0.585E-04, 1.19E-04*"	7.43	3.898	89			age of volcanism		"7.42%, 7.44% K2O"	
3881	1	35.09	1.3	biotite	conventional K-Ar	B67-68	"4.72E-04, 0.585E-04, 1.19E-04*"	7.45	3.801	79			age of volcanism		"7.37%, 7.44%, 7.54% K2O"	
3882	1	35.1	1.3	biotite	conventional K-Ar	62	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
3883	1	32.88	1.1	sanidine	conventional K-Ar	B69-54	"4.72E-04, 0.585E-04, 1.19E-04*"	12.6	6.02	85			age of volcanism			
3884	1	22.42	0.8	biotite	conventional K-Ar	B67-52	"4.72E-04, 0.585E-04, 1.19E-04*"	8.97	2.913	62			age of volcanism		"9.02%, 9.01%, 8.88% K2O"	
3885	1	5.11	0.2	adularia	conventional K-Ar	70-71A	"4.72E-04, 0.585E-04, 1.19E-04*"	12.9	0.95	38				SANIDINE STRUCTURE AS DETERMINED BY X-RAY		AGE OF MINERALIZATION
3886	1	56		hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of metamorphic crystallization		NO ANALYTICAL DATA GIVEN	
3891	1	195.77	7	hornblende	conventional K-Ar	MC62	"4.72E-04, 0.585E-04, 1.19E-04*"	0.35	1.042	14			minimum age of metamorphic crystallization			"ANALYTICAL DATA RELEASED BY E.H. MCKEE, USGS, MENLO PARK, CALIFORNIA"
3892	1	25.91	0.9	sanidine	conventional K-Ar	MC-74-BE-762A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.885	3.338	89			age of intrusion		"8.90%, 8.87% K2O; ANALYTICAL DATA SUPPLIED BY R.F. MARVIN, USGS"	
3893	1	150.8	3	biotite	conventional K-Ar	97VV-368	"4.72E-04, 0.585E-04, 1.19E-04*"	7.15	16.19	90			minimum age of intrusion		"7.13%, 7.16% K2O"	FISSION-TRACK AGES OF 170 +/- 13 AND 19.6 +/- 2.7 REPORTED FOR THIS SAMPLE BY ASHLEY (1973)
3894	1	159.62	3	muscovite	conventional K-Ar	GS1-945	"4.72E-04, 0.585E-04, 1.19E-04*"	4.32	10.38	91				WHITE MICA WITH IMPURITIES	"4.31%, 4.33% K20"	MAY INDICATE TIME OF ALTERATION
3895	1	25	0.5	sanidine	conventional K-Ar	C21	"4.72E-04, 0.585E-04, 1.19E-04*"	12.26	4.44	92			minimum age of volcanism	SANIDINE-BIOTITE MIXTURE(?)		FISSION-TRACK AGES OF 31.1 +/- 2.2 AND 27.7 +/- 3.3 REPORTED FOR THIS SAMPLE BY ASHLEY (1973)
3901	1	20.83	0.8	biotite	conventional K-Ar	228-2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.74	2.335	20			age of volcanism		"7.74%, 7.74% K2O"	
3901	2	21.78	0.4	sanidine	conventional K-Ar	228-2	"4.72E-04, 0.585E-04, 1.19E-04*"	11.87	3.745	53			age of volcanism		"11.87%, 11.87% K2O"	
3902	1	21.36	0.4	hornblende	conventional K-Ar	166-64-1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.95	0.2939	36			age of intrusion		"0.947%, 0.953% K2O"	
3903	1	14.95	2.4	plagioclase	conventional K-Ar	164-69	"4.72E-04, 0.585E-04, 1.19E-04*"	0.915	0.1977	8			age of volcanism		"0.915%, 0.915% K2O"	AGE OF 14.2 +/- 0.3 ON BIOTITE REPORTED FOR THIS SAMPLE IN SILBERMAN AND MCKEE (1972)
3904	1	16.44	0.3	sanidine	conventional K-Ar	164-19	"4.72E-04, 0.585E-04, 1.19E-04*"	9.43	2.242	92			age of volcanism		"9.43%, 9.43% K2O"	
3905	1	13.06	0.3	biotite	conventional K-Ar	51-12	"4.72E-04, 0.585E-04, 1.19E-04*"	8.07	1.523	50			age of volcanism		"8.07%, 8.07% K2O"	
3906	1	10.68	1.3	whole rock	conventional K-Ar	166-76	"4.72E-04, 0.585E-04, 1.19E-04*"	1.73	0.2668	32			age of volcanism		"1.77%, 1.70%, 1.75%, 1.70% K2O; 0.3002 X E-10, 0.2334 X E-10 MOL/GM ARGON"	
3907	1	10.64	1.4	whole rock	conventional K-Ar	226-63	"4.72E-04, 0.585E-04, 1.19E-04*"	1.53	0.2351	7			age of volcanism		"1.51%, 1.54% K2O"	
3908	1	11.47	0.2	sanidine	conventional K-Ar	38-3	"4.72E-04, 0.585E-04, 1.19E-04*"	6.93	1.148	78			age of volcanism		"6.94%, 6.92% K2O"	
3909	1	21.45	0.4	sericite	conventional K-Ar	99	"4.72E-04, 0.585E-04, 1.19E-04*"	4.87	1.513	76				K-MICA PLUS QUARTZ CONCENTRATE	"4.88%, 4.86%, 4.89%, 4.84% K2O"	MAY BE THE AGE OF ALTERATION AND MINERALIZATION
3910	1	21.48	0.4	sericite	conventional K-Ar	145	"4.72E-04, 0.585E-04, 1.19E-04*"	3.9	1.213	53			age of volcanism	K-MICA PLUS QUARTZ CONCENTRATE	"3.90%, 3.91%, 3.89%, 3.89% K2O"	
3911	1	20.56	0.4	alunite	conventional K-Ar	CL-1828	"4.72E-04, 0.585E-04, 1.19E-04*"	6.32	1.881	57					"6.35%, 6.35%, 6.26% K2O"	AGE OF MINERALIZATION
3911	2	20.41	0.4	alunite	conventional K-Ar	CL-1828	"4.72E-04, 0.585E-04, 1.19E-04*"	6.32	1.868	61					"6.35%, 6.35%, 6.26% K2O; ARGON EXTRACTION SYSTEM NOT BAKED-OUT OVERNIGHT"	AGE OF MINERALIZATION
3912	1	20.49	0.4	alunite	conventional K-Ar	185-79B	"4.72E-04, 0.585E-04, 1.19E-04*"	10.04	2.979	33					"9.97%, 10.09%, 10.06% K2O; ARGON EXTRACTION SYSTEM NOT BAKED-OUT OVERNIGHT"	TIME OF ALTERATION OR MINERALIZATION
3913	1	10.79	0.8	alunite	conventional K-Ar	N-46	"4.72E-04, 0.585E-04, 1.19E-04*"	6.73	1.049	17					"6.77%, 6.70%, 6.72% K2O"	AGE OF MINERALIZATION
3913	2	10.26	2.1	alunite	conventional K-Ar	N-46	"4.72E-04, 0.585E-04, 1.19E-04*"	6.73	0.9968	7					"6.77%, 6.70%, 6.72% K2O; ARGON EXTRACTION SYSTEM NOT BAKED-OUT OVERNIGHT"	AGE OF MINERALIZATION
3914	1	9.45	1.7	natroalunite	conventional K-Ar	I3-43	"4.72E-04, 0.585E-04, 1.19E-04*"	2.24	0.3057	8					"2.23%, 2.25%, 2.25% K2O"	AGE OF MINERALIZATION
3914	2	6.13	3.9	natroalunite	conventional K-Ar	I3-43	"4.72E-04, 0.585E-04, 1.19E-04*"	2.24	0.198	23					"2.23%, 2.25%, 2.25% K2O; ARGON EXTRACTION SYSTEM NOT BAKED-OUT OVERNIGHT"	SPURIOUS AGE; TOO YOUNG
3915	1	11.92	1.7	alunite	conventional K-Ar	P3-15	"4.72E-04, 0.585E-04, 1.19E-04*"	4.94	0.8507	9					"4.90%, 4.97% K2O"	AGE OF MINERALIZATION
3915	2	2	4	alunite	conventional K-Ar	P3-15	"4.72E-04, 0.585E-04, 1.19E-04*"	4.94	0.12	1					"4.90%, 4.97% K2O; ARGON EXTRACTION SYSTEM NOT BAKED-OUT OVERNIGHT"	SPURIOUS AGE
3916	1	34.4	1.1	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3916	2	32.6	1.1	sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3917	1	32.7	1.1	sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3918	1	23.1	0.9	Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3919	1	22.1	0.9	Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3920	1	1430	45	Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of intrusion		NO ANALYTICAL DATA GIVEN	
3921	1	24.7	0.7	K feldspar	conventional K-Ar	MH-3	"4.962E-04, 0.581E-04, 1.1167E-04"	12.72	4.557	14			age of intrusion		"12.72%, 12.72% K2O"	
3922	1	24.1	0.7	K feldspar	conventional K-Ar	MH-4	"4.962E-04, 0.581E-04, 1.1167E-04"	5.625	1.965	32			age of intrusion		"5.64%, 5.61% K2O"	
3923	1	25.1	0.8	K feldspar	conventional K-Ar	MH-5	"4.962E-04, 0.581E-04, 1.1167E-04"	13.615	4.948	11				PROBABLY ORTHOCLASE ACCORDING TO X-RAY ANALYSIS	"13.67%, 13.56% K2O"	AGE OF MINERALIZATION
3924	1	25.7	0.8	K feldspar	conventional K-Ar	MH-6	"4.962E-04, 0.581E-04, 1.1167E-04"	14.265	5.325	21			minimum age of intrusion		"14.29%, 14.24% K2O"	
3924	2	25.3	0.8	sericite	conventional K-Ar	MH-6	"4.962E-04, 0.581E-04, 1.1167E-04"	9	3.309	21					"8.99%, 9.01% K2O"	AGE OF ALTERATION
3925	1	8.2	1.2	whole rock	conventional K-Ar	583	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3926	1	8.6	1.3	whole rock	conventional K-Ar	584	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3927	1	10.6	1	whole rock	conventional K-Ar	431	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
3928	1	89.5	2.7	sericite	conventional K-Ar	M151A	"4.962E-04, 0.581E-04, 1.1167E-04"	10.06	13.28	92			minimum age of intrusion			MAY ALSO BE THE AGE OF ALTERATION
3929	1	19.5	0.5	plagioclase	conventional K-Ar	AD-SSAD	"4.962E-04, 0.581E-04, 1.1167E-04"	2.353	0.6638	18				K-FELDSPAR AND QUARTZ CONCENTRATE		AGE OF MINERALIZATION
3930	1	2.82	0.1	whole rock	conventional K-Ar	USGS-D2391R	"4.72E-04, 0.585E-04, 1.19E-04*"	2.635	0.1072	35			age of volcanism		"2.64%, 2.63% K2O"	
3931	1	2.93	0.1	whole rock	conventional K-Ar	USGS-D2392R	"4.72E-04, 0.585E-04, 1.19E-04*"	2.54	0.1074	35			age of volcanism		"2.56%, 2.52% K2O"	
3932	1	5.89	0.2	biotite	conventional K-Ar	USGS-D2466B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.435	0.631	51			maximum age of volcanism		"7.42%, 7.45% K2O"	CONTAMINATION BY EXTRANEOUS BIOTITE IS A POSSIBILITY
3933	1	7.44	0.2	hornblende	conventional K-Ar	USGS-D2465H	"4.72E-04, 0.585E-04, 1.19E-04*"	1.135	0.1219	44			maximum age of volcanism		"1.13%, 1.14% K2O"	"(SAMPLE NUMBER IN ERROR, LISTED AS USGS-D2466B -- COMPILER) CONTAMINATION BY EXTRANEOUS FEMICS IS A POSSIBILITY"
3934	1	17.69	1.1	hornblende	conventional K-Ar	USGS-D2405H	"4.72E-04, 0.585E-04, 1.19E-04*"	0.725	0.1856	57			age of volcanism		"0.73%, 0.72% K2O"	
3934	2	17.82	0.6	plagioclase	conventional K-Ar	USGS-D2405PL	"4.72E-04, 0.585E-04, 1.19E-04*"	2.32	0.598	80			age of volcanism		"2.33%, 2.31% K2O"	
3935	1	16.07	0.5	whole rock	conventional K-Ar	USGS-D2390R	"4.72E-04, 0.585E-04, 1.19E-04*"	2.47	0.5741	76			age of volcanism		"2.44%, 2.46%, 2.45%, 2.52% K2O"	
3936	1	22.78	0.8	biotite	conventional K-Ar	USGS-D2381B	"4.72E-04, 0.585E-04, 1.19E-04*"	6.855	2.262	29			age of volcanism		"6.85%, 6.86% K2O"	
3937	1	23.51	0.5	sanidine	conventional K-Ar	USGS-D2550S	"4.72E-04, 0.585E-04, 1.19E-04*"	9.685	3.299	92			age of volcanism		"9.68%, 9.69% K2O"	
3938	1	25.25	0.9	biotite	conventional K-Ar	USGS-D2404B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.535	2.758	53					"7.57%, 7.50% K2O"	"AGE IS TOO OLD, SAMPLE MAY BE CONTAMINATED, OR CONTAINS EXCESS ARGON, OR THERE WAS AN ANALYTICAL ERROR"
3939	1	21.93	0.9	plagioclase	conventional K-Ar	USGS-D2436PL	"4.72E-04, 0.585E-04, 1.19E-04*"	0.845	0.2684	84			age of volcanism		"0.85%, 0.84% K2O"	LIES BELOW UNIT 9 (22-23 M.Y. OLD); AGE IS APPARENTLY A BIT TOO YOUNG
3940	1	24.25	1.9	whole rock	conventional K-Ar	R3476	"4.72E-04, 0.585E-04, 1.19E-04*"	1.385	0.4868	3444			age of volcanism		"1.41%, 1.36% K2O; 0.4481 X E-10, 0.5254 X E-10 MOL/GM 40AR-RAD"	
3941	1	24.83	0.9	biotite	conventional K-Ar	USGS-D2380B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.08	2.908	62			age of volcanism		"8.08%, 8.08% K2O"	"GILBERT AND OTHERS (1968) REPORTED AGES OF 22.1+/-0.4 M.Y. (SANIDINE), 22.8+/-0.6 M.Y. (PLAGIOCLASE), AND 24.0+/-1.0 M.Y. (BIOTITE)"
3942	1	25.29	0.8	biotite	conventional K-Ar	USGS-D2379B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.945	2.913	38			age of volcanism		"7.93%, 7.96% K2O"	
3943	1	26.96	0.4	sanidine	conventional K-Ar	USGS-D2464S	"4.72E-04, 0.585E-04, 1.19E-04*"	10.175	3.979	83			age of volcanism		"10.25%, 10.10% K2O"	
3943	2	27.39	0.9	biotite	conventional K-Ar	USGS-D2464B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.105	3.22	57			age of volcanism		"8.07%, 8.14% K2O"	
3944	1	27.22	1.5	biotite	conventional K-Ar	B-3462	"4.72E-04, 0.585E-04, 1.19E-04*"	7.68	3.0325	2422			age of volcanism		"7.733%, 7.627% K2O; 3.095 X E-10, 2.970 X E-10 MOL/GM 40AR-RAD"	
3945	1	72.51	2	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	9.32	66			age of intrusion		"8.74%, 8.76% K2O"	
3946	1	76.3	3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.805	9.88	47			age of intrusion		"8.78%, 8.83% K2O"	
3947	1	79.54	3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.25	10.83	92			age of intrusion			
3948	1	150.4	5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.37	18.9	83			age of intrusion		"8.37%, 8.37% K2O"	
3948	2	153.69	5	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.5715	1.32	57			age of intrusion		"0.570%, 0.573% K2O"	
3949	1	73.73	2	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.35	10.13	94			age of intrusion			
3950	1	75.61	2	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.77	9.75	55			age of intrusion			
3951	1	85.36	3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.71	12.22	75			age of intrusion		"9.68%, 9.74% K2O"	
3952	1	87.44	3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.52	12.28	88			age of intrusion			
3953	1	95.02	3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.76	13.71	76			initial age disturbed by later metamorphism		"9.75%, 9.77% K2O"	EARLY CRETACEOUS PLUTON
3954	1	110.94	4	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.33	15.37	96			age of intrusion			
3955	1	88.41	3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.39	12.25	73			initial age disturbed by later metamorphism			JURASSIC PLUTON
3955	2	152.79	5	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.015	2.33	87			age of intrusion			
3956	1	92	3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.25	12.57	94			initial age disturbed by later metamorphism			TRIASSIC PLUTON OR JURASSIC PLUTON
3957	1	105.3	3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.32	14.55	89			initial age disturbed by later metamorphism			TRIASSIC OR JURASSIC PLUTON
3958	1	130.25	4	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.21	17.91	87			initial age disturbed by later metamorphism			TRIASSIC OR JURASSIC PLUTON
3959	1	135.53	4	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.455	19.16	78			initial age disturbed by later metamorphism		"9.44%, 9.47% K2O"	TRIASSIC OR JURASSIC PLUTON
3959	2	231.35	9	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.847	3.01	75			age of intrusion	CONTAINED SOME CLINOPYROXENE		
3960	1	92.03	3	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.177	1.6	68			initial age disturbed by later metamorphism			JURASSIC PLUTON
3961	1	100.66	3	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.04	1.55	84			initial age disturbed by later metamorphism			JURASSIC PLUTON
3962	1	153.14	5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.635	22.17	61			initial age disturbed by later metamorphism		"9.63%, 9.64% K2O"	JURASSIC PLUTON
3963	1	174.06	6	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.9465	2.49	73			age of intrusion		"0.945%, 0.948% K2O"	
3964	1	165.15	5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.205	22.92	85			initial age disturbed by later metamorphism		"9.18%, 9.23% K2O"	
3964	2	179.79	6	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.9075	2.47	56			age of intrusion		"0.905%, 0.910% K2O"	
3965	1	210.27	7	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.087	3.49	85			age of intrusion			
3970	1	17.2	0.7	biotite	conventional K-Ar	209/63	"4.72E-04, 0.585E-04, 1.19E-04"						"age meaning uncertain (analysis questionable), initial age disturbed by later metamorphism"		NO ANALYTICAL DATA GIVEN	
3971	1	16	0.6	muscovite	conventional K-Ar	106/63	"4.72E-04, 0.585E-04, 1.19E-04"						"age meaning uncertain (analysis questionable), initial age disturbed by later metamorphism"		NO ANALYTICAL DATA GIVEN	
3972	1	143.4	4.3	biotite	conventional K-Ar	193/63	"4.72E-04, 0.585E-04, 1.19E-04"						"age of metamorphic crystallization, initial age disturbed by later metamorphism"		NO ANALYTICAL DATA GIVEN	
3979	1	16.8	0.6	biotite	conventional K-Ar	149/63	"4.72E-04, 0.585E-04, 1.19E-04"						"age meaning uncertain (analysis questionable), initial age disturbed by later metamorphism"		NO ANALYTICAL DATA GIVEN	
3985	1	7.46	0.5	glass	conventional K-Ar	D1884GL	"4.72E-04, 0.584E-04, 1.19E-04*"	4.52	0.4864	38			age of volcanism	HYDRATED GLASS		
3986	1	11.59	3.3	glass	conventional K-Ar	D1880GL	"4.72E-04, 0.584E-04, 1.19E-04*"	4.9	0.8201	7			age of volcanism	HYDRATED GLASS		
3987	1	9.87	5	glass	conventional K-Ar	D1881GL	"4.72E-04, 0.584E-04, 1.19E-04*"	5.21	0.7423	3				HYDRATED GLASS		GLASS GAVE AN AGE THAT IS LESS THAN THE AGE OF THE FORMATION--11.3 M.Y.  SOME RADIOGENIC ARGON HAS LEAKED OUT.
3988	1	9.84	0.4	glass	conventional K-Ar	D1879GL	"4.72E-04, 0.584E-04, 1.19E-04*"	5.35	0.7602	71				HYDRATED GLASS		GLASS GAVE AN AGE LESS THAN THE AGE OF THE FORMATION--13.3 M.Y.  GLASS LEAKED SOME RADIOGENIC ARGON.
3989	1	15.95	1.7	glass	conventional K-Ar	D1921GL	"4.72E-04, 0.584E-04, 1.19E-04*"	4.6	1.061	16			age of volcanism	NONHYDRATED GLASS		
3990	1	6.28	0.3	glass	conventional K-Ar	1(D1889GL)	"4.72E-04, 0.584E-04, 1.19E-04*"	5.18	0.4694	82			age of volcanism	NONHYDRATED GLASS	REPLICATE K2O ANALYSES	
3991	1	7.82	0.6	glass	conventional K-Ar	4(D1883GL)	"4.72E-04, 0.584E-04, 1.19E-04*"	5.56	0.6273	23				HYDRATED GLASS	REPLICATE K2O ANALYSES	AGE APPEARS TOO YOUNG BASED ON MINERAL AGE OF 9.0 M.Y.
3992	1	51	2	muscovite	conventional K-Ar	SP-1	"4.72E-04, 0.585E-04, 1.19E-04"	9.87		73			age of intrusion		AR-40/K-40 = 0.00299	
3993	1	42	2	biotite	conventional K-Ar	SP-2	"4.72E-04, 0.585E-04, 1.19E-04"	4.67		27			age of intrusion		AR-40/K-40 = 0.00249	
3994	1	129	6	hornblende	conventional K-Ar	1014	"4.72E-04, 0.585E-04, 1.19E-04"	0.625		76			age not evaluated		AR-40/K-40 = 0.00780	
3995	1	188	7	biotite	conventional K-Ar	1015	"4.72E-04, 0.585E-04, 1.19E-04"	7.89		89			maximum age of intrusion		AR-40/K-40 = 0.01155	
3996	1	367	18	hornblende	conventional K-Ar	1016	"4.72E-04, 0.585E-04, 1.19E-04"	0.862		95			age meaning uncertain (geologic factors)		AR-40/K-40 = 0.02365	
3997	1	67.2	3	biotite	conventional K-Ar	1017	"4.72E-04, 0.585E-04, 1.19E-04"	7.39		83			age meaning uncertain (geologic factors)		AR-40/K-40 = 0.00400	
3998	1	19.5	1	biotite	conventional K-Ar	SP-3	"4.72E-04, 0.585E-04, 1.19E-04"	7.69		35			age meaning uncertain (geologic factors)		AR-40/K-40 = 0.001145	
3999	1	149	6	biotite	conventional K-Ar	1018	"4.72E-04, 0.585E-04, 1.19E-04"	8.62		96			age of intrusion		AR-40/K-40 = 0.00903	
4000	1	155	6	biotite	conventional K-Ar	KA840	"4.72E-04, 0.585E-04, 1.19E-04"	8.43		76			age of intrusion		AR-40/K-40 = 0.00945	
4001	1	21.1		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	7.21		70			age of volcanism			
4002	1	4.39	0.4	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.3	0.462	28			age of volcanism			
4003	1	15.62	0.7	biotite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	8.47	1.913	74			age of volcanism		"8.34%, 8.59% K2O"	
4004	1	15.38	0.5	biotite	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	8.79	1.955	66			age of volcanism			
4005	1	15.41	0.5	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	8.8	1.961	70			age of volcanism			
4006	1	13.73	0.7	biotite	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.19E-04*"	7.56	1.5	54			age of volcanism		"7.44%, 7.68% K2O"	
4006	2	11.93	2	hornblende	conventional K-Ar	9	"4.72E-04, 0.584E-04, 1.19E-04*"	0.925	0.1594	38			age of volcanism		"0.92%, 0.93% K2O"	
4007	1	17.72	3	whole rock	conventional K-Ar	12(1-14-21)	"4.72E-04, 0.584E-04, 1.19E-04*"	3.08	0.7898	6			age of volcanism			
4007	2	16.03	3	whole rock	conventional K-Ar	13(1-14-21)	"4.72E-04, 0.584E-04, 1.19E-04*"	3.08	0.7139	5			age of volcanism			
4008	1	9.81	3.2	hornblende	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	0.61	0.0864	32			age of volcanism		"0.61%, 0.61% K2O"	
4009	1	11.37	0.5	whole rock	conventional K-Ar	24(2-93-3)	"4.72E-04, 0.584E-04, 1.19E-04*"	2.4	0.394	21			age of volcanism		"2.36%, 2.46%, 2.39% K2O"	
4010	1	12.09	0.5	whole rock	conventional K-Ar	25	"4.72E-04, 0.584E-04, 1.19E-04*"	4.03	0.7038	81			age of volcanism		"4.07%, 3.99% K2O"	
4011	1	12.96	0.8	whole rock	conventional K-Ar	27(1-71-2)	"4.72E-04, 0.584E-04, 1.19E-04*"	2.62	0.4908	17			age of volcanism		"2.63%, 2.61% K2O"	
4012	1	14.16	0.2	whole rock	conventional K-Ar	28(BC411)	"4.72E-04, 0.584E-04, 1.19E-04*"	2.135	0.4369	5155			age of volcanism		"2.13%, 2.14% K2O AND 4.385 X E-11, 4.353 X E-11 MOL/GM AR-40"	
4013	1	13.57	0.4	biotite	conventional K-Ar	29(12-L-59)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.19	1.606	36			age of volcanism		"8.22%, 8.16% K2O"	
4014	1	13.6	0.3	biotite	conventional K-Ar	30(53-L-59)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.22	1.615	42			age of volcanism		"8.24%, 8.20%, 8.23% K2O"	
4015	1	14.89	0.6	biotite	conventional K-Ar	34(BC301)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.21	1.767	85			age of volcanism			
4015	2	14.75	0.5	sanidine	conventional K-Ar	35(BC301)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.87	1.891	96			age of volcanism			
4016	1	15.69	0.6	biotite	conventional K-Ar	36(BC304)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.58	1.946	73			age of volcanism			
4017	1	16.49	0.6	sanidine	conventional K-Ar	37(TP23)	"4.72E-04, 0.584E-04, 1.19E-04*"	7.64	1.822	85			age of volcanism		"7.69%, 7.59% K2O"	
4017	2	16.17	0.6	biotite	conventional K-Ar	38(TP23)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.27	1.934	89			age of volcanism		"8.26%, 8.28% K2O"	
4018	1	14.87	0.6	sanidine	conventional K-Ar	39(BC308)	"4.72E-04, 0.584E-04, 1.19E-04*"	9.17	1.971	92			age of volcanism			
4018	2	16.02	0.7	biotite	conventional K-Ar	40(BC308)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.7	2.016	72			age of volcanism			
4019	1	16.17	0.2	biotite	conventional K-Ar	41(BC483D)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.13	1.901	7985			age of volcanism		"8.07%, 8.19% K2O; 1.906 E-10, 1.896 E-10 MOL/GM AR-40"	
4019	2	18.93	0.3	hornblende	conventional K-Ar	42(BC483D)	"4.72E-04, 0.584E-04, 1.19E-04*"	1.28	0.3507	5438			age of volcanism		"1.28%, 1.28% K2O; 0.3453 E-10, 0.3560 E-10 MOL/GM AR-40"	
4020	1	5.04	0.4	whole rock	conventional K-Ar	15(BC405)	"4.72E-04, 0.584E-04, 1.19E-04*"	1.395	0.1014	77			age of volcanism		"1.40%, 1.39% K2O; 0.1056 E-10, 0.09723 E-10 MOL/GM AR-40"	
4021	1	12.29	0.2	whole rock	conventional K-Ar	26(BC412)	"4.72E-04, 0.584E-04, 1.19E-04*"	2.335	0.4147	6673			age of volcanism		"2.36%, 2.31% K2O; 0.4198 E-10, 0.4096 E-10 MOL/GM AR-40"	
4022	1	13.33	0.2	whole rock	conventional K-Ar	31(BC424)	"4.72E-04, 0.584E-04, 1.19E-04*"	1.14	0.2196	4242			age of volcanism		"1.11%, 1.17% K2O; 0.2152 E-10, 0.2240 E-10 MOL/GM AR-40"	
4023	1	14.91	0.3	whole rock	conventional K-Ar	33(BC409B)	"4.72E-04, 0.584E-04, 1.19E-04*"	1.465	0.3158	2820			age of volcanism		"1.47%, 1.46% K2O; 0.3227 E-10, 0.3088 E-10 MOL/GM AR-40"	
4024	1	19.01	0.7	whole rock	conventional K-Ar	43(BC309)	"4.72E-04, 0.584E-04, 1.19E-04*"	5.725	1.575	82			age of volcanism		"5.72%, 5.73% K2O"	
4024	2	23.35	0.9	sanidine	conventional K-Ar	44(BC309)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.93	3.022	94			maximum age of volcanism		"8.88%, 8.98% K2O"	AGE MAY BE TOO OLD
4024	3	28.54	1.1	biotite	conventional K-Ar	45(BC309)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.505	3.522	85					"8.47%, 8.54% K2O"	AGE APPEARS TOO OLD
4024	4	41.76	1.6	biotite	conventional K-Ar	46(BC309)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.955	5.447	87					"8.98%, 8.93% K2O"	AGE APPEARS TOO OLD FOR UNKNOWN REASONS
4025	1	15.57	0.6	biotite	conventional K-Ar	58(BC303)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.974	2.02	5026			age of intrusion		"8.978%, 8.970% K2O; 1.99 E-10, 2.05 E-10 MOL/GM AR-40"	
4026	1	13.97	0.6	biotite	conventional K-Ar	59(BC305)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.3215	1.68	5249			age of intrusion		"8.421%, 8.222% K2O; 1.72 E-10, 1.64 E-10 MOL/GM AR-40"	
4027	1	20	0.8	biotite	conventional K-Ar	PED-21-64	"4.76E-04, 0.585E-04, 1.21E-04*"	8.55	2.48	63			age of volcanism			AGE ALSO PUBLISHED BY ANDERSON AND OTHERS (1970)
4028	1	11.9	0.7	whole rock	conventional K-Ar	PED-1-65	"4.76E-04, 0.585E-04, 1.21E-04*"	6.81	1.17	30			age of volcanism			AGE ALSO PUBLISHED BY ANDERSON AND OTHERS (1970)
4029	1	88.12	3	biotite	conventional K-Ar	66NC100	"4.72E-04, 0.585E-04, 1.19E-04*"	9.445	12.28	82			age of intrusion		"9.43%, 9.46% K2O"	
4029	2	91.26	3	biotite	conventional K-Ar	66NC100	"4.72E-04, 0.585E-04, 1.19E-04*"	8.385	11.3	74			age of intrusion		"8.37%, 8.38% K2O"	
4030	1	155.63	5	biotite	conventional K-Ar	66NC24	"4.72E-04, 0.585E-04, 1.19E-04*"	8.32	19.47	83			age of intrusion		"8.32%, 8.32% K2O"	
4031	1	153.11	5	biotite	conventional K-Ar	66NC35	"4.72E-04, 0.585E-04, 1.19E-04*"	8.55	19.67	88			age of intrusion		"8.58%, 8.52% K2O"	
4032	1	39.34	1.5	biotite	conventional K-Ar	68NC126	"4.72E-04, 0.585E-04, 1.19E-04*"	8.4	4.81	60			age of intrusion			
4033	1	9.2	0.3	whole rock	conventional K-Ar	1(MA-11)	"4.962E-04, 0.581E-04, 1.1167E-04"	2.411	0.3199	62			age of volcanism			
4034	1	9.1	0.3	whole rock	conventional K-Ar	2(MA-4B)	"4.962E-04, 0.581E-04, 1.1167E-04"	2.307	0.3042	76			age of volcanism			
4035	1	8.7	0.3	biotite	conventional K-Ar	11(GLENDALE)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.435	0.9314	57			age of volcanism			
4036	1	14.8	0.4	hornblende	conventional K-Ar	12(SW-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.643	0.1375	44			age of volcanism			
4037	1	11	0.3	hornblende	conventional K-Ar	14(OP-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.158	0.1836	41			age of volcanism			
4038	1	23.1	0.7	hornblende	conventional K-Ar	19(2384-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.581	0.1945	60			age of volcanism			
4038	2	22	0.7	plagioclase	conventional K-Ar	19(2384-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.767	0.2441	77			age of volcanism			
4039	1	24.7	0.7	hornblende	conventional K-Ar	20(16149-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.732	0.2617	55			age of intrusion			
4040	1	15.4	0.5	plagioclase	conventional K-Ar	21(2605-5)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.224	0.4999	40			age of volcanism			
4041	1	15.4	0.5	hornblende	conventional K-Ar	22(11920-2)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.676	0.1503	55			age of volcanism			
4041	2	15.1	0.5	plagioclase	conventional K-Ar	22(11920-2)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.336	0.7341	48			age of volcanism			
4042	1	22.1	0.7	plagioclase	conventional K-Ar	23(2306-7)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.824	0.2635	72			age of volcanism			
4042	2	23.1	0.7	biotite	conventional K-Ar	23(2306-7)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.39	0.2811	64			age of volcanism			
4043	1	25.6	0.8	sanidine	conventional K-Ar	24(MLS-73-9)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.915	0.2941	61			age of volcanism			
4044	1	26.7	0.8	sanidine	conventional K-Ar	25(MLS-73-10)	"4.962E-04, 0.581E-04, 1.1167E-04"	10.265	0.3981	82			age of volcanism			
4045	1	28.3	0.9	sanidine	conventional K-Ar	26(3289-10)	"4.962E-04, 0.581E-04, 1.1167E-04"	10.63	0.4363	87			age of volcanism			
4045	2	25	0.8	plagioclase	conventional K-Ar	26(3289-10)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.068	0.3878	82						AGE APPEARS TOO YOUNG
4046	1	108	3	biotite	conventional K-Ar	27(L-317)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.31	13.36	85			age of intrusion			
4047	1	38.5	1.2	biotite	conventional K-Ar	28(L-340)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.505	4.762	89			age of intrusion			
4048	1	78.4	3.9	biotite	conventional K-Ar	29(GS-B10)	"4.962E-04, 0.581E-04, 1.1167E-04"	3.55	4.093	55			minimum age of intrusion			
4049	1	159	5	biotite	conventional K-Ar	30(MB43)	"4.962E-04, 0.581E-04, 1.1167E-04"	9.08	21.72	94			minimum age of intrusion			LOWER AGE MAY BE DUE TO LOSS OF ARGON
4049	2	172	5	hornblende	conventional K-Ar	30(MB43)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.701	1.821	87			age of intrusion			
4050	1	91.9	2.8	biotite	conventional K-Ar	31(RILEY)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.79	11.93	95			age of intrusion			
4050	2	92.1	2.8	hornblende	conventional K-Ar	31(RILEY)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.31	1.786	85			age of intrusion			
4051	1	124	6	hornblende	conventional K-Ar	32(6300B)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.233	0.4292	60			age of intrusion			
4052	1	9.5	0.6	plagioclase	conventional K-Ar	33(DP2)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.431	0.1962	21						UNUSUALLY LOW RADIOGENIC ARGON SUGGESTS HYDROTHERMAL ALTERATION; AGE IS APPARENTLY TOO YOUNG
4052	2	26.2	1.2	hornblende	conventional K-Ar	33(DP2)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.434	0.1646	25			minimum age of intrusion			UNUSUALLY LOW RADIOGENIC ARGON SUGGESTS HYDROTHERMAL ALTERATION
4053	1	11.2	0.3	whole rock	conventional K-Ar	36(6-12-75)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.161	0.1874	30			age of volcanism	NOT TREATED WITH ACID		
4053	2	11.1	0.3	whole rock	conventional K-Ar	35(6-12-75A)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.213	0.1944	31			age of volcanism	HF AND HNO3 ACID TREATMENT TO REDUCE ATMOSPHERIC ARGON CONTENT		
4054	1	13.2	0.4	whole rock	conventional K-Ar	36(L. MCKINNEY)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.926	0.3686	22			age of volcanism			
4055	1	11.8	0.4	whole rock	conventional K-Ar	37(L. MCKINNEY)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.894	0.3231	25			age of volcanism			
4056	1	10.6	0.4	whole rock	conventional K-Ar	38(COAL CAN)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.444	0.2216	26			age of volcanism			
4057	1	1.24	0.21	whole rock	conventional K-Ar	39(BS-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	2.455	0.0438	6			age of volcanism	"NOT TREATED WITH ACID, -60 +100 MESH"		
4057	2	1.29	0.03	whole rock	conventional K-Ar	40(BS-1A)	"4.962E-04, 0.581E-04, 1.1167E-04"	2.453	0.0457	1628			age of volcanism	TREATED WITH HF AND HNO3 ACID BEFORE FUSION	4.648 E-10 AND 4.483 E-10 MOL/GRAM AR-40	
4057	3	1.4	0.14	whole rock	conventional K-Ar	41(BS-1B)	"4.962E-04, 0.581E-04, 1.1167E-04"	2.463	0.0496	12			age of volcanism	TREATED WITH BROMOFORM AND PHOSPHORIC ACID BEFORE FUSION		
4058	1	19.5	0.6	alunite	conventional K-Ar	42(SA-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.79	2.2	47						AGE OF ALTERATION
4059	1	10.3	0.3	adularia	conventional K-Ar	48(GB1)	"4.962E-04, 0.581E-04, 1.1167E-04"	6.945	1.031	33						MINERALIZATION-ALTERATION AGE
4060	1	84.2	2.5	muscovite	conventional K-Ar	46(KF-1-6)	"4.962E-04, 0.581E-04, 1.1167E-04"	5.76	7.146	68				VERY FINE-GRAINED		AGE OF MINERALIZATION-ALTERATION
4061	1	87.3	2.6	Unk	conventional K-Ar	47(KF-1-6)	"4.962E-04, 0.581E-04, 1.1167E-04"	3.435	4.424	80				THE SILICATE GANGUE WITH SULFIDES REMOVED		AGE OF MINERALIZATION-ALTERATION
4062	1	5.2	0.5	adularia	conventional K-Ar	48(IVO-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	4.745	0.3529	14						AGE OF MINERALIZATION
4063	1	9.5	0.2	adularia	conventional K-Ar	50(MLS-73-2)	"4.962E-04, 0.581E-04, 1.1167E-04"	3.17	0.4327	3854					"4.343 E-11, 4.311 E-11 MOL/GM AR-40"	AGE OF MINERALIZATION-ALTERATION
4064	1	10.7	0.3	biotite	conventional K-Ar	51(MLS-73-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.22	1.119	34			age of volcanism			
4065	1	10.9	0.3	whole rock	conventional K-Ar	52(CH821)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.04	1.261	2929				QUARTZ-K-FELDSPAR-MUSCOVITE-PYRITE-CHLORITE ASSEMBLAGE	"1.252 E-10, 1.270 E-10 MOL/GM AR-40"	MINERALIZATION AGE
4066	1	17.3	0.2	K feldspar	conventional K-Ar	53(CD138)	"4.962E-04, 0.581E-04, 1.1167E-04"	3.18	0.7949	4551					"8.059 E-11, 7.838 E-11 MOL/GM AR-40"	AGE OF MINERALIZATION-ALTERATION
4067	1	75.9	2.3	K feldspar	conventional K-Ar	54(CD142)	"4.962E-04, 0.581E-04, 1.1167E-04"	11.33	12.64	92						AGE OF MINERALIZATION-ALTERATION
4068	1	35	1.1	biotite	conventional K-Ar	55(AR-298)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.2	4.169	85			age of intrusion			
4069	1	131	4	biotite	conventional K-Ar	56(6460-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	5.66	11.07	83			minimum age of intrusion			POSSIBLE AGE OF ALTERATION-MINERALIZATION
4070	1	13.4	1.5	plagioclase	conventional K-Ar	3(CP-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.395	0.0762	109			age of volcanism		"8.450 E-12, 6.790 E-12 MOL/GM AR-40"	
4071	1	11.2	0.3	plagioclase	conventional K-Ar	4(LS-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.701	0.1136	45			age of volcanism			
4072	1	15	0.5	hornblende	conventional K-Ar	5(LS-2)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.48	0.1038	30			maximum age of volcanism			POSSIBLE INCLUSION OF XENOCRYSTIC MATERIAL
4073	1	7.3	0.3	hornblende	conventional K-Ar	6(MR-2)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.6045	0.0639	21			age of volcanism			
4074	1	12.1	0.5	hornblende	conventional K-Ar	7(MR-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.862	0.1502	25			age of volcanism			
4075	1	26.4	0.8	plagioclase	conventional K-Ar	8(BH-T)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.367	0.1406	62			age of volcanism			THIS IS THE OLDEST KNOWN AGE OF AN ANDESITE FLOW UNIT FROM THIS PART OF THE SIERRA NEVADA
4076	1	13.5	0.4	plagioclase	conventional K-Ar	9(CP-4)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.329	0.0641	46			age of volcanism			
4076	2	12.9	0.4	hornblende	conventional K-Ar	9(CP-4)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.581	0.1085	43			age of volcanism			
4077	1	11	0.9	plagioclase	conventional K-Ar	10(BONTA)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.252	0.04	15			maximum age of volcanism			POSSIBLY THIS IS XENOCRYSTIC MATERIAL
4077	2	10.9	0.4	hornblende	conventional K-Ar	10(BONTA)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.473	0.0744	29			maximum age of volcanism			POSSIBLY THIS IS XENOCRYSTIC MATERIAL
4078	1	10.5	0.3	hornblende	conventional K-Ar	13(MN-4)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.64	0.0973	32			age of volcanism			
4079	1	8.9	0.3	biotite	conventional K-Ar	15(ME-3)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.06	1.032	65			age of volcanism			
4080	1	9.1	0.3	biotite	conventional K-Ar	16(ME-4)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.1	1.066	51			age of volcanism			
4081	1	9.5	0.3	biotite	conventional K-Ar	17(M-3)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.735	1.195	59			age of volcanism			
4081	2	9.7	0.4	plagioclase	conventional K-Ar	17(M-3)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.591	0.0832	24			age of volcanism			
4082	1	20	0.8	whole rock	conventional K-Ar	18(N621)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.73	0.5019	40			age of volcanism			LOWER AGE LIMIT FOR MAJOR CALC-ALKALINE ANDESITE ERUPTIONS IN THIS PART OF THE SIERRA NEVADA
4083	1	19.2	0.8	whole rock	conventional K-Ar	18(N621)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.75	0.4866	32			age of volcanism			LOWER AGE LIMIT FOR MAJOR CALC-ALKALINE ANDESITE ERUPTIONS IN THIS PART OF THE SIERRA NEVADA
4084	1	4.95	0.24	sericite	conventional K-Ar	44(ZACA)	"4.962E-04, 0.581E-04, 1.1167E-04"	9.7	0.6926	5781					"6.688 E-11, 7.165 E-11 MOL/GM AR-40"	AGE INDICATES TIME OF ALTERATION (MINERALIZATION)
4085	1	4.76	0.19	whole rock	conventional K-Ar	45(Z-4/69)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.667	0.5266	48						AGE INDICATES TIME OF ALTERATION (MINERALIZATION)
4092	1	94.65	1.3	whole rock	conventional K-Ar	YU-P-2	"4.72E-04, 0.584E-04, 1.19E-04*"	3.95	5.526	7033			age of intrusion		REPLICATE ANALYSES	
4093	1	99.65	1.5	biotite	conventional K-Ar	YU-PF-1	"4.72E-04, 0.584E-04, 1.19E-04*"	9.83	14.5	8585			age of intrusion		REPLICATE AR AND K ANALYSES	
4094	1	103.07	2	biotite	conventional K-Ar	YU-PF-2	"4.72E-04, 0.584E-04, 1.19E-04*"	9.05	13.82	85			age of intrusion			
4095	1	110.05	2.1	biotite	conventional K-Ar	YU-PF-3	"4.72E-04, 0.584E-04, 1.19E-04*"	9.09	14.85	88			age of intrusion		REPLICATE K ANALYSES	
4096	1	110.32	1.5	plagioclase	conventional K-Ar	YU-P-1	"4.72E-04, 0.584E-04, 1.19E-04*"	4.36	7.141	9282			minimum age of metamorphic crystallization		REPLICATE K AND AR ANALYSES	
4097	1	93.62	1.3	biotite	conventional K-Ar	YU-P-3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.64	10.57	8988					REPLICATE K AND AR ANALYSES	PROBABLE TIME OF HYDROTHERMAL ALTERATION
4098	1	61	1.2	microcline	conventional K-Ar	YU-P-156	"4.72E-04, 0.584E-04, 1.19E-04*"	10.46	9.343	84				MICROPERTHITIC MICROCLINE		"SPURIOUS AGE, PROBABLY DUE TO POST-EMPLACEMENT LOSS OF AR FROM MICROCLINE"
4099	1	102.16	2	whole rock	conventional K-Ar	YU-P-156-1	"4.72E-04, 0.584E-04, 1.19E-04*"	4.37	6.613	80			minimum age of metamorphic crystallization			
4100	1	26.19	0.9	sanidine	conventional K-Ar	N70-21-S	"4.72E-04, 0.585E-04, 1.19E-04*"	6.53	2.48	53			age of volcanism			
4101	1	27	0.9	glass	conventional K-Ar	N70-28-NG	"4.72E-04, 0.585E-04, 1.19E-04*"	3.37	1.32	94			age of volcanism	NONHYDRATED GLASS		
4119	1	25.17	0.9	whole rock	conventional K-Ar	N70-22-WR	"4.72E-04, 0.585E-04, 1.19E-04*"	0.825	0.301	11			age of volcanism			
4128	1	103.53	4	biotite	conventional K-Ar	NM-5 DIKE	"4.72E-04, 0.585E-04, 1.19E-04*"	2.973	4.561				minimum age of intrusion			
4129	1	91.36	3.2	muscovite	conventional K-Ar	NORTHWEST DIKE	"4.72E-04, 0.585E-04, 1.19E-04*"	10.05	13.56				minimum age of intrusion			
4130	1	89.28	3.2	biotite	conventional K-Ar	OLSEN STOCK	"4.72E-04, 0.585E-04, 1.19E-04*"	8.492	11.19				minimum age of intrusion			MAY BE THE AGE OF TUNGSTEN MINERALIZATION
4131	1	81.1	2.9	biotite	conventional K-Ar	FORGE STOCK	"4.72E-04, 0.585E-04, 1.19E-04*"	8.336	9.955				minimum age of intrusion			MAY BE THE AGE OF TUNGSTEN MINERALIZATION
4132	1	80.65	2.9	biotite	conventional K-Ar	SPRINGER STOCK	"4.72E-04, 0.585E-04, 1.19E-04*"	7.381	8.765				minimum age of intrusion			MAY BE THE AGE OF MINERALIZATION
4133	1	78.16	2.7	adularia	conventional K-Ar	SPRINGER QUARTZ VEINS	"4.72E-04, 0.585E-04, 1.19E-04*"	15.26	17.55							AGE OF VEIN; AGE OF TUNGSTEN MINERALIZATION
4134	1	76.08	2.8	biotite	conventional K-Ar	UNCLE SAM STOCK	"4.72E-04, 0.585E-04, 1.19E-04*"	8.004	8.955				minimum age of intrusion			MAY BE THE AGE OF TUNGSTEN MINERALIZATION
4135	1	74.1	2.6	adularia	conventional K-Ar	SUTTON QUARTZ VEINS	"4.72E-04, 0.585E-04, 1.19E-04*"	13.242	14.42							AGE OF VEIN; AGE OF TUNGSTEN MINERALIZATION
4136	1	68.43	2.5	biotite	conventional K-Ar	SOUTHWEST STOCK	"4.72E-04, 0.585E-04, 1.19E-04*"	7.211	7.241				minimum age of intrusion			
4137	1	1.16	0.04	whole rock	conventional K-Ar	S18	"4.72E-04, 0.585E-04, 1.19E-04*"	1.765	0.0296	38			age of volcanism		REPLICATE K ANALYSES	
4138	1	110.6	6	biotite	conventional K-Ar	4(S-EPR4079B/D3R)	"4.72E-04, 0.584E-04, 1.19E-04*"	2.99	4.91	30			age of intrusion	SEVERELY CHLORITIZED		
4139	1	93.37	7	whole rock	conventional K-Ar	5(S-EPR4079C/D4R)	"4.72E-04, 0.584E-04, 1.19E-04*"	3.82	5.27	24			minimum age of intrusion			"THIS STOCK PREVIOUSLY DATED AS 121 M.Y. OLD (HAUSEN AND KERR, 1968)"
4140	1	14.82	1.8	whole rock	conventional K-Ar	6(S-EPR4064E/N-KR-44B)	"4.72E-04, 0.584E-04, 1.19E-04*"	1.96	0.42	10			age of intrusion			
4141	1	50.48	2	biotite	conventional K-Ar	7(S-EPR4094D)	"4.72E-04, 0.584E-04, 1.19E-04*"	7.87	5.8	34			maximum age of intrusion			OTHER SAMPLES GIVE AGES OF 30-40 M.Y.
4142	1	33.45	1.5	biotite	conventional K-Ar	8(S-ERP4063A/N-KR-1)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.64	4.2	49			minimum age of intrusion			OTHER SAMPLES GIVE AGES OF 40 AND 49 M.Y.
4143	1	40.93	1	whole rock	conventional K-Ar	9(S-ERP4063D/N-KR-41)	"4.72E-04, 0.584E-04, 1.19E-04*"	7.87	4.69	78			age of intrusion			"THIS PLUTON DATED AS 36 M.Y. BY SILBERMAN AND MCKEE (1971); OTHER SAMPLES GAVE AGES OF 49, 32.6, AND 29.9 M.Y."
4144	1	86.53	2.5	whole rock	conventional K-Ar	10(S-EPR4064B)	"4.72E-04, 0.584E-04, 1.19E-04*"	4.43	5.653	76						PROBABLY A SPURIOUS AGE
4145	1	95.49	9	orthoclase	conventional K-Ar	11(S-EPR4064C)	"4.72E-04, 0.584E-04, 1.19E-04*"	3.66	5.167	53				ALTERED ORTHOCLASE		SPURIOUS AGE; AGE OF PLUTON IS JURASSIC
4145	2	182.94	4	muscovite	conventional K-Ar	11(S-EPR4064C)	"4.72E-04, 0.584E-04, 1.19E-04*"	9.34	25.89	80			maximum age of intrusion	FRESH MUSCOVITE		ARMSTRONG (1970) OBTAINED AN AGE OF 152 M.Y. FOR THIS PLUTON
4146	1	152.07	3	muscovite	conventional K-Ar	12(S-EPR4064D)	"4.72E-04, 0.584E-04, 1.19E-04*"	10.34	23.62	69			age of intrusion			ARMSTRONG (1970) OBTAINED AN AGE OF 152 M.Y. FOR THIS PLUTON
4147	1	126.53	12	biotite	conventional K-Ar	13(S-EPR4064A)	"4.72E-04, 0.584E-04, 1.19E-04*"	2.39	4.51	39			age of intrusion			
4147	2	73.25	3	orthoclase	conventional K-Ar	S-EPR4064A	"4.72E-04, 0.584E-04, 1.19E-04*"	11.94	12.85	89				ALTERED ORTHOCLASE		"MINIMUM AGE OF 100 M.Y. REPORTED FOR THIS STOCK (SILBERMAN AND MCKEE, 1971); THIS ORTHOCLASE AGE IS SPURIOUS"
4148	1	86.3	3	whole rock	conventional K-Ar	14(S-EPR4078D/G7G117R)	"4.72E-04, 0.584E-04, 1.19E-04*"	11.11	14.14	75			minimum age of intrusion			"SIMILAR SILL GAVE AGE OF 94 M.Y. (SILBERMAN AND MCKEE, 1970)"
4149	1	90.67	3	whole rock	conventional K-Ar	15(S-EPR4078C/67G115R)	"4.72E-04, 0.584E-04, 1.19E-04*"	11.13	14.9	75			minimum age of intrusion			SILBERMAN AND MCKEE (1970) OBTAINED AN AGE OF 94 M.Y. FOR A SIMILAR RHYOLITE
4150	1	132.99	3	biotite	conventional K-Ar	16(S-EPR4083A/SCE636)	"4.72E-04, 0.584E-04, 1.19E-04*"	7.7	15.3	72			minimum age of intrusion			QUESTIONABLE AGE AS KRUEGER AND SCHILLING (1971) OBTAINED AN AGE OF 157 M.Y. FOR THIS PLUTON
4150	2	106.04	2	orthoclase	conventional K-Ar	16(S-EPR4083A/SCE636)	"4.72E-04, 0.584E-04, 1.19E-04*"	12.23	19.23	82				ALTERED ORTHOCLASE		SPURIOUS AGE
4151	1	79.18	1.5	biotite	conventional K-Ar	17(S-EPR4094E/SCE1021)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.77	10.22	65			age of intrusion			"SIMILAR AGES WERE OBTAINED BY SILBERMAN AND MCKEE (1971, P. 30) AND KRUEGER AND SCHILLING (1971, P. 10 AND 11)"
4152	1	140	8	biotite	conventional K-Ar	18(S-EPR4120A)	"4.72E-04, 0.584E-04, 1.19E-04"	4.46	8.21	64			age of intrusion		(*)	
4153	1	96.13	5.4	biotite	conventional K-Ar	19(S-EPR4120B)	"4.72E-04, 0.584E-04, 1.19E-04*"	6.31	8.97	38				ALTERED BIOTITE		PROBABLY A HYBRID AGE
4153	2	115.13	4.8	muscovite	conventional K-Ar	19(S-EPR4120B)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.84	15.13	54						PROBABLY A HYBRID AGE
4154	1	306.24	13	whole rock	conventional K-Ar	21(S-EPR4063B/N-KR-3)	"4.72E-04, 0.584E-04, 1.19E-04*"	0.77	3.7	60						AGE SUGGESTS A METAMORPHIC EVENT DURING THE PENNSYLVANIA-PERMIAN TIMES
4155	1	104.32	7	whole rock	conventional K-Ar	22(S-EPR4120C)	"4.72E-04, 0.584E-04, 1.19E-04*"	2.6	4.02	37			"minimum age of volcanism, minimum age of metamorphic crystallization"			HYBRID AGE DUE TO INTRUSION OF MONTE CRISTO STOCK
4156	1	10.58	0.2	adularia	conventional K-Ar	37	"4.72E-04, 0.585E-04, 1.19E-04*"	11.4	1.742	6248					"1.768 X E-10, 1.716 X E-10 MOL/GM AR-40"	AGE OF MINERALIZATION
4157	1	125		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.583E-04*"	8.36	15.5					SECONDARY BROWN MICA		"AGE OF HYDROTHERMAL ALTERATION, AGE OF MINERALIZATION"
4158	1	3.41	0.1	sanidine	conventional K-Ar	W19-NO.1	"4.72E-04, 0.585E-04, 1.19E-04*"	10.5	0.5156	92			age of volcanism		"10.51%, 10.49% K2O"	
4158	2	3.47	0.24	biotite	conventional K-Ar	W19-NO.1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.385	0.3698	23			age of volcanism		"7.38%, 7.39% K2O"	
4158	3	3.27	0.1	sanidine	conventional K-Ar	W19-NO.2	"4.72E-04, 0.585E-04, 1.19E-04*"	10.555	0.4976	91			age of volcanism		"10.59%, 10.52% K2O"	
4158	4	3.54	0.17	biotite	conventional K-Ar	W19-NO.2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.73	0.3938	29			age of volcanism		"7.70%, 7.76% K2O"	
4159	1	3.55	0.14	biotite	conventional K-Ar	W20	"4.72E-04, 0.585E-04, 1.19E-04*"	8.195	0.419	33			age of volcanism		"8.18%, 8.21% K2O"	
4159	2	3.87	0.34	plagioclase	conventional K-Ar	W20	"4.72E-04, 0.585E-04, 1.19E-04*"	0.6695	0.0373	18			age of volcanism		"0.668%, 0.671% K2O"	
4160	1	3.59	0.11	whole rock	conventional K-Ar	W21	"4.72E-04, 0.585E-04, 1.19E-04*"	1.83	0.0948	2929			age of volcanism		"1.83%, 1.83% K2O; 0.949 X E-11, 0.946 X E-11 MOL/GM AR-40"	
4161	1	7.08	0.19	whole rock	conventional K-Ar	W22	"4.72E-04, 0.585E-04, 1.19E-04*"	0.951	0.0971	6767			age of volcanism		"0.948%, 0.964%, 0.961%, 0.932% K2O; 0.960 X E-11, 0.983 X E-11 MOL/GM AR-40"	
4162	1	9.76	0.38	biotite	conventional K-Ar	W23	"4.72E-04, 0.585E-04, 1.19E-04*"	8.005	1.128	60			age of volcanism		"7.97%, 8.04% K2O"	
4163	1	44.05	2.1	biotite	conventional K-Ar	BO439	"4.72E-04, 0.585E-04, 1.19E-04*"	5.95	3.82	3558			age of volcanism		"4.80%, 4.96%, AND 5.06% K; 0.0157 AND 0.0148 PPM AR-40"	
4164	1	36.45	1	biotite	conventional K-Ar	BO124	"4.72E-04, 0.585E-04, 1.19E-04*"	7.49	3.97	3644			age of volcanism		"6.18%, 6.25% K; 0.0161 AND 0.0156 PPM AR-40"	
4165	1	41.24	2.3	biotite	conventional K-Ar	BO094	"4.72E-04, 0.585E-04, 1.19E-04*"	7.66	4.6	53			age of volcanism		"6.36%, 6.36% K; 0.0184 PPM AR-40"	
4166	1	2.79	0.8	plagioclase	conventional K-Ar	KA-2003	"4.72E-04, 0.584E-04, 1.19E-04*"	0.468	0.0188	7			age of volcanism		REPLICATE K ANALYSES	
4167	1	2.89	0.4	plagioclase	conventional K-Ar	KA-1859	"4.72E-04, 0.584E-04, 1.19E-04*"	0.411	0.0171	14			age of volcanism		REPLICATE K ANALYSES	
4168	1	2.72	0.2	biotite	conventional K-Ar	KA-1912	"4.72E-04, 0.584E-04, 1.19E-04*"	8.052	0.315	27			age of volcanism		REPLICATE K ANALYSES	
4169	1	4.64	0.2	whole rock	conventional K-Ar	KA-1866	"4.72E-04, 0.584E-04, 1.19E-04*"	1.215	0.0813	38			age of volcanism		REPLICATE K ANALYSES	
4170	1	3.76	0.1	whole rock	conventional K-Ar	KA-1867	"4.72E-04, 0.584E-04, 1.19E-04*"	1.662	0.09	43			age of volcanism		REPLICATE K ANALYSES	
4171	1	4.02	0.1	whole rock	conventional K-Ar	KA-1876	"4.72E-04, 0.584E-04, 1.19E-04*"	1.73	0.1002	43			age of volcanism		REPLICATE K ANALYSES	
4172	1	3.56	0.1	sanidine	conventional K-Ar	KA-1813	"4.72E-04, 0.584E-04, 1.19E-04*"	9.501	0.4876	76			age of volcanism		REPLICATE K ANALYSES	
4173	1	3.53	0.1	sanidine	conventional K-Ar	KA-1850	"4.72E-04, 0.584E-04, 1.19E-04*"	10.01	0.5095	81			age of volcanism		REPLICATE K ANALYSES	
4174	1	2.79	0.1	whole rock	conventional K-Ar	KA-2016	"4.72E-04, 0.584E-04, 1.19E-04*"	2.826	0.1136	31			age of volcanism		REPLICATE K ANALYSES	
4175	1	3.16	0.1	whole rock	conventional K-Ar	KA-2015	"4.72E-04, 0.584E-04, 1.19E-04*"	3.068	0.1395	66			age of volcanism		REPLICATE K ANALYSES	
4176	1	3.68	0.1	sanidine	conventional K-Ar	KA-2066	"4.72E-04, 0.584E-04, 1.19E-04*"	10.54	0.5594	85			age of volcanism		REPLICATE K ANALYSES	
4177	1	1.59	0.1	whole rock	conventional K-Ar	KA-2089	"4.72E-04, 0.584E-04, 1.19E-04*"	3.476	0.0798	27			age of volcanism		REPLICATE K ANALYSES	
4178	1	11.84	0.3	biotite	conventional K-Ar	KA-1852	"4.72E-04, 0.584E-04, 1.19E-04*"	8.067	1.38	65			age of volcanism		REPLICATE K ANALYSES	
4179	1	11.58	0.2	sanidine	conventional K-Ar	KA-1916	"4.72E-04, 0.584E-04, 1.19E-04*"	8.1	1.355	89			age of volcanism		REPLICATE K ANALYSES	
4179	2	11.89	0.2	plagioclase	conventional K-Ar	KA-1918	"4.72E-04, 0.584E-04, 1.19E-04*"	0.919	0.1579	56			age of volcanism		REPLICATE K ANALYSES	
4180	1	11.5	0.2	sanidine	conventional K-Ar	KA-1860	"4.72E-04, 0.584E-04, 1.19E-04*"	9.654	1.603	92			age of volcanism		REPLICATE K ANALYSES	
4181	1	11.54	0.2	biotite	conventional K-Ar	KA-1911	"4.72E-04, 0.584E-04, 1.19E-04*"	7.869	1.312	64			age of volcanism		REPLICATE K ANALYSES	
4182	1	12.85	0.3	plagioclase	conventional K-Ar	KA-2048	"4.72E-04, 0.584E-04, 1.19E-04*"	0.598	0.111	76			age of volcanism		REPLICATE K ANALYSES	
4183	1	22.58	0.4	sanidine	conventional K-Ar	KA-1979	"4.72E-04, 0.584E-04, 1.19E-04*"	10.02	3.278	70			age of volcanism		REPLICATE K ANALYSES	
4183	2	22.54	0.9	plagioclase	conventional K-Ar	KA-1989	"4.72E-04, 0.584E-04, 1.19E-04*"	0.656	0.2142	39			age of volcanism		REPLICATE K ANALYSES	
4184	1	22.59	0.3	sanidine	conventional K-Ar	KA-1970	"4.72E-04, 0.584E-04, 1.19E-04*"	9.7	3.175	95			age of volcanism		REPLICATE K ANALYSES	
4184	2	23.3	0.4	plagioclase	conventional K-Ar	KA-1988	"4.72E-04, 0.584E-04, 1.19E-04*"	0.492	0.1661	85			age of volcanism		REPLICATE K ANALYSES	
4184	3	24.63	0.7	biotite	conventional K-Ar	KA-2009	"4.72E-04, 0.584E-04, 1.19E-04*"	5.702	2.036	56			age of volcanism		REPLICATE K ANALYSES	
4185	1	24.17	0.5	plagioclase	conventional K-Ar	KA-2000	"4.72E-04, 0.584E-04, 1.19E-04*"	0.889	0.3114	95			age of volcanism		REPLICATE K ANALYSES	
4186	1	29.18	0.6	sanidine	conventional K-Ar	KA-2047	"4.72E-04, 0.584E-04, 1.19E-04*"	10.6	4.49	97			age of volcanism		REPLICATE K ANALYSES	
4188	1	17.75	0.8	plagioclase	conventional K-Ar	2 (MZWT-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.57	0.4031	32			minimum age of volcanism			AGE MAY BE RELATED TO ALTERATION OF ROCK BY HYDROTHERMAL SOLUTIONS
4190	1	18.55	0.5	K feldspar	conventional K-Ar	4 (OWT-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.63	1.78	82						ALTERATION AGE
4191	1	25.81	0.8	biotite	conventional K-Ar	5 (MC-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	3.084	66			age of volcanism			
4191	2	24.68	0.7	plagioclase	conventional K-Ar	4 (MC-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.51	0.8978	84			minimum age of volcanism			
4192	1	26.46	0.8	biotite	conventional K-Ar	6 (TAF2(1))	"4.72E-04, 0.585E-04, 1.19E-04*"	8.81	3.381	69			minimum age of volcanism			"AGE IS IN AGREEMENT WITH OTHER K-AR AGES FOR TUFFS OF THIS UNIT (EKREN AND OTHERS, 1971)"
4194	1	21.06	0.8	biotite	conventional K-Ar	8 (GC-135)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.71	2.656	66			age of volcanism			THIS AGE AGREES WITH PREVIOUS K-AR AGE PUBLISHED BY BONHAM AND OTHERS (1972) FOR MIZPAH FORMATION
4195	1	17.29	0.5	biotite	conventional K-Ar	10 (74 MLS-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.25	2.064	43			minimum age of volcanism			AGE PROBABLY RESET BY LATER HYDROTHERMAL ALTERATION
4196	1	16.52	0.5	sanidine	conventional K-Ar	11 (TFR2-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	11.03	2.636	77			minimum age of volcanism			AGE PROBABLY RESET BY LATER HYDROTHERMAL ACTIVITY
4196	2	17.27	0.7	biotite	conventional K-Ar	11 (TFR2-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.38	2.094	62			minimum age of volcanism			AGE PROBABLY RESET BY LATER HYDROTHERMAL ACTIVITY
4197	1	20.1	0.4	glass	conventional K-Ar	12 (SS-25)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.66	1.647	55			minimum age of volcanism			
4198	1	20.41	0.6	K feldspar	conventional K-Ar	13 (TV-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.26	1.85	66			age of volcanism			
4199	1	20.18	0.6	K feldspar	conventional K-Ar	14 (TFR-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.71	1.668	49			age of volcanism			
4199	2	22.05	0.6	biotite	conventional K-Ar	14 (TFR-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	2.74	65			maximum age of volcanism			"AGE OLDER THAN AVERAGE AGE OF UNIT, POSSIBLY DUE TO CRYSTAL CONTAMINATION DURING ERUPTION"
4200	1	18.66	0.6	K feldspar	conventional K-Ar	15 (TV-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.81	1.299	65			age of volcanism			
4201	1	19.45	0.6	sanidine	conventional K-Ar	17 (R-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.58	2.697	81			age of volcanism			
4202	1	18.58	0.7	whole rock	conventional K-Ar	18 (T-291)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.36	1.979	53				QUARTZ-ADULARIA-SERICITE INTERGROWTH		AGE OF MINERALIZATION; AGE OF ALTERATION.  THIS AGE IS A BIT YOUNGER THAN THE 19.1 M.Y. AGE REPORTED BY BONHAM AND OTHERS (1972) FOR VEIN ADULARIA FROM BELMONT MINE
4203	1	17.47	0.7	whole rock	conventional K-Ar	20 (T-229)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.21	2.328	46				QUARTZ-ADULARIA-SERICITE INTERGROWTH		AGE OF ALTERATION; AGE OF MINERALIZATION
4204	1	20.13	0.4	sanidine	conventional K-Ar	21 (SIE-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.5	2.768	71						"AGE SEEMS TOO OLD, POSSIBLY DUE TO CONTAMINATION WITH OLDER FELDSPARS"
4204	2	16.49	1	biotite	conventional K-Ar	21 (SIE-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.85	1.872	20			age of volcanism			
4205	1	16.61	0.6	whole rock	conventional K-Ar	22 (SIE-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.54	0.6101	66			age of volcanism			
4206	1	20.47	1.2	K feldspar	conventional K-Ar	23 (SIE-3A)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.15	0.6371	20						"AGE TOO OLD, POSSIBLE CONTAMINATION WITH OLDER FELDSPAR.  SILBERMAN AND MCKEE (1972) REPORTED AN AGE OF 15.5 M.Y. FOR BIOTITE FROM TUFF IN THE SIEBERT FORMATION"
4207	1	17.26	0.5	biotite	conventional K-Ar	25 (11550-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.49	2.12	42			age of volcanism			
4208	1	16.88	0.5	biotite	conventional K-Ar	25 (OD-1-BO)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.91	2.176	64			age of volcanism			
4209	1	16.52	0.5	sanidine	conventional K-Ar	28 (BQL-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.95	2.617	95			age of volcanism			
4209	2	16.39	0.5	biotite	conventional K-Ar	22 (BQL-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.67	2.055	60			age of volcanism			
4210	1	14.55	0.4	K feldspar	conventional K-Ar	29 (BQL-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.41	1.348	48			minimum age of volcanism			DISCORDANT FELDSPAR AND BIOTITE K-AR AGES SUGGEST AGES HAVE BEEN EFFECTED BY A LATER THERMAL EVENT
4210	2	13.57	0.4	biotite	conventional K-Ar	29 (BQL-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.98	1.761	48						DISCORDANT BIOTITE AND FELDSPAR AGES SUGGEST AGES HAVE BEEN EFFECTED BY A LATER THERMAL EVENT
4211	1	17.25	0.5	biotite	conventional K-Ar	30 (D-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.54	1.632	64			age of volcanism			
4211	2	16.99	0.8	hornblende	conventional K-Ar	30 (D-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.86	0.2113	58			age of volcanism		POTASSIUM VALUE DETERMINED BY X-RAY FLUORESCENCE	
4211	3	15.27	0.4	plagioclase	conventional K-Ar	30 (D-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.495	0.1093	60			minimum age of volcanism	VERMICULAR PLAGIOCLASE		AGE APPEARS TOO YOUNG
4212	1	17.3	0.7	hornblende	conventional K-Ar	31 (D-3)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.934	0.2338	33			age of volcanism			
4213	1	16.32	0.5	whole rock	conventional K-Ar	32 (L-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.94	0.9297	75			age of volcanism			"K-AR AGES RANGE FROM 16.3 TO 14.8 M.Y. FOR SAMPLES OF THE ""VOLCANICS OF DONOVAN PEAK"""
4214	1	16.74	0.7	biotite	conventional K-Ar	33 (FBR-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.46	2.048	42			age of volcanism			"K-AR AGES RANGE FROM 16.3 TO 14.8 M.Y. FOR SAMPLES FROM ""VOLCANICS OF DONOVAN PEAK"""
4215	1	15.16	0.6	hornblende	conventional K-Ar	34 (HL-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.862	0.1889	26			age of volcanism			"K-AR AGES RANGE FROM 16.3 TO 14.8 M.Y. FOR SAMPLES FROM ""VOLCANICS OF DONOVAN PEAK"""
4216	1	16.07	0.2	sericite	conventional K-Ar	35 (TD-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.322	0.5396	5952					"0.5392 X E-10, 0.5400 X E-10 MOL/GM 40AR-RAD"	PROBABLE AGE OF ALTERATION
4217	1	15.64	0.6	sericite	conventional K-Ar	36 (TD-3)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.86	1.325	37						AGE OF ALTERATION
4218	1	16.2	0.5	muscovite	conventional K-Ar	37 (THA-6)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.02	1.879	56						PROBABLE AGE OF ALTERATION
4219	1	16.87	0.5	whole rock	conventional K-Ar	38 (THA-25R)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.61	1.369	48				"MIXTURE OF QUARTZ, ADULARIA, AND PYRITE"		AGE OF HYDROTHERMAL ALTERATION
4219	2	16.72	0.5	adularia	conventional K-Ar	38 (THA-25C)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.51	2.3	56						AGE OF HYDROTHERMAL ALTERATION
4220	1	16.08	0.6	hornblende	conventional K-Ar	41 (LM-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.802	0.1865	31			age of volcanism			
4220	2	17.07	0.8	plagioclase	conventional K-Ar	41 (LM-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.375	0.0926	34			age of volcanism	VERMICULAR PLAGIOCLASE		
4221	1	16.18	0.5	hornblende	conventional K-Ar	42 (LM-3)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.726	0.1699	40			age of volcanism			
4222	1	16.19	0.5	whole rock	conventional K-Ar	43 (TM-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.91	0.4473	54			age of volcanism	CRUSHED TO -60+100 MESH		THIS AGE MORE PRECISE THAN AGE OF 18.9 M.Y. FOR THIS UNIT REPORTED BY ARMSTRONG AND OTHERS (1972)
4223	1	15.52	0.5	hornblende	conventional K-Ar	44 (RMB-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.891	0.2	45			age of volcanism			THIS AGE MORE PRECISE THAN WHOLE-ROCK AGES OF 15.8+/-2 AND 17.9+/-3 M.Y. FOR THIS UNIT AS REPORTED BY ARMSTRONG AND OTHERS (1972)
4225	1	21.6	0.9	sanidine	conventional K-Ar	1(AD-49)	"4.962E-04, 0.581E-04, 1.1167E-04"	10.66	3.341	595737			age of volcanism		"10.70%, 10.62% K2O; 3.593 E-10, 3.119 E-10, 3.310 E-10 MOL/GM AR-40"	
4225	2	22.8	0.7	biotite	conventional K-Ar	1(AD-49)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.25	2.397	3231			age of volcanism		"7.24%, 7.26% K2O; 2.370 E-10, 2.423 E-10 MOL/GM"	
4226	1	26.1	0.2	sanidine	conventional K-Ar	2(NE-253A)	"4.962E-04, 0.581E-04, 1.1167E-04"	9.43	3.567	97			age of volcanism			
4227	1	25.1	0.8	sanidine	conventional K-Ar	3(NE-238)	"4.962E-04, 0.581E-04, 1.1167E-04"	10.855	3.947	78			age of volcanism		"10.84%, 10.87% K2O"	
4227	2	26.7	0.8	biotite	conventional K-Ar	3(NE-238)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.36	2.851	81			age of volcanism		"7.35%, 7.37% K2O"	
4228	1	28	0.8	biotite	conventional K-Ar	4(NE-205)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.515	3.462	56			age of volcanism		"8.51%, 8.52% K2O"	
4228	2	28.6	0.9	plagioclase	conventional K-Ar	4(NE-205)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.925	0.3834	49			age of volcanism		"0.927%, 0.923% K2O"	
4229	1	7.51	0.4	whole rock	conventional K-Ar	ADSQ16	"4.72E-04, 0.585E-04, 1.19E-04*"	1.29	0.1397	26			age of volcanism		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	
4229	2	9.7	7.5	plagioclase	conventional K-Ar	ADSQ16	"4.72E-04, 0.585E-04, 1.19E-04"								NO ANALYTICAL DATA GIVEN; HIGH ANALYTICAL UNCERTAINTY IS DUE TO PRESENCE OF LARGE AMOUNT OF ATMOSPHERIC ARGON	
4230	1	13.7	2.2	plagioclase	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
4231	1	14.28	0.4	hornblende	conventional K-Ar	ADSQ10	"4.72E-04, 0.585E-04, 1.19E-04*"	0.793	0.1637	58			age of intrusion		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	
4232	1	26.6	0.8	biotite	conventional K-Ar	ADSQ18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.18	3.156	71			age of volcanism		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA; AGE PUBLISHED AS 25.2 +/- 1.0 M.Y."	
4233	1	22.55	0.5	biotite	conventional K-Ar	ADSQ13	"4.72E-04, 0.585E-04, 1.19E-04*"	8.56	2.796	68			age of volcanism		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	THIS AGE IS IN AGREEMENT WITH OTHER AGES ON SAME UNIT IN GILLIS-GABBS VALLEY RANGES TO THE EAST
4234	1	26.58	0.8	biotite	conventional K-Ar	ADSQ21	"4.72E-04, 0.585E-04, 1.19E-04*"	6.88	2.652	75			age of volcanism		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	
4234	2	26.26	0.8	hornblende	conventional K-Ar	ADSQ21	"4.72E-04, 0.585E-04, 1.19E-04*"	0.953	0.363	47			age of volcanism		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	MINERALS FROM OTHER SAMPLES OF THIS VOLCANIC UNIT GAVE OLDER AGES
4235	1	147.77	4	hornblende	conventional K-Ar	ADSQ44	"4.72E-04, 0.585E-04, 1.19E-04*"	0.673	1.492	92			minimum age of intrusion		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	
4236	1	116.45	5	hornblende	conventional K-Ar	ADSQ11	"4.72E-04, 0.585E-04, 1.19E-04*"	1.137	1.969	76					"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	"K-AR AGE OF HORNBLENDE IS LOW; ANOTHER HORNBLENDE CONCENTRATE GAVE A K-AR AGE OF 142 M.Y. (BINGLER, 1972)"
4236	2	80.94	2.4	biotite	conventional K-Ar	ADSQ11	"4.72E-04, 0.585E-04, 1.19E-04*"	5.7	6.793	86					"ANALYTICAL DATA RELEASED BY M.L. SILBERMAN, USGS"	K-AR AGE OF BIOTITE HAS BEEN REDUCED BY LATER CRETACEOUS PLUTONISM
4237	1	142.76	4	biotite	conventional K-Ar	ADSQ38	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	17.71	94			minimum age of intrusion		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	
4238	1	157.48	5	hornblende	conventional K-Ar	ADSQ22	"4.72E-04, 0.585E-04, 1.19E-04*"	0.661	1.566	83			minimum age of intrusion		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	
4238	2	102.48	3	biotite	conventional K-Ar	ADSQ22	"4.72E-04, 0.585E-04, 1.19E-04*"	8.313	12.62	92					"ANALYTICAL DATA RELEASED BY M.L. SILBERMAN, USGS"	K-AR AGE OF BIOTITE WAS PROBABLY REDUCED BY CRETACEOUS PLUTONISM
4239	1	138.41	4	hornblende	conventional K-Ar	ADSQ47	"4.72E-04, 0.585E-04, 1.19E-04*"	0.956	1.98	91			minimum age of intrusion		"ANALYTICAL DATA WAS RELEASED BY M.L. SILBERMAN, USGS, MENLO PARK, CALIFORNIA"	
4239	2	81.83	2.4	biotite	conventional K-Ar	ADSQ47	"4.72E-04, 0.585E-04, 1.19E-04*"	7.87	9.485	87					"ANALYTICAL DATA RELEASED BY M.L. SILBERMAN, USGS"	K-AR AGE OF BIOTITE HAS BEEN REDUCED BY CRETACEOUS PLUTONISM
4240	1	18.9	0.8	plagioclase	conventional K-Ar	1(CD-137)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.248	0.3412	29			age of intrusion			
4241	1	22	0.7	plagioclase	conventional K-Ar	2(CD-136)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.803	0.2558	49			age of volcanism			
4242	1	24.2	0.7	biotite	conventional K-Ar	3(CD-261)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.57	3.007	51			age of volcanism			
4242	2	24.8	1	plagioclase	conventional K-Ar	3(CD-261)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.575	0.2064	23			age of volcanism			
4243	1	73.9	2.2	K feldspar	conventional K-Ar	4(4(CD-141)	"4.962E-04, 0.581E-04, 1.1167E-04"	9.62	10.45	92				MICROPERTHITIC FELDSPAR		AGE IS TOO LOW; MICROPERTHITIC FELDSPAR USUALLY LEAKS RADIOGENIC ARGON
4243	2	89.5	2.7	biotite	conventional K-Ar	A(CD-141)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.63	10.07	89			age of intrusion			
4244	1	78.5	2.4	K feldspar	conventional K-Ar	5(CD-140)	"4.962E-04, 0.581E-04, 1.1167E-04"	10.49	12.11	79				MICROCLINE		AGE TOO LOW; MICROCLINE HAS LOST RADIOGENIC ARGON
4244	2	92.8	2.8	biotite	conventional K-Ar	5(CD-140)	"4.962E-04, 0.581E-04, 1.1167E-04"	3.98	5.454	80			minimum age of intrusion	HIGHLY CHLORITIZED		
4244	3	70.3	2.1	plagioclase	conventional K-Ar	5(CD-140)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.323	0.3336	47				VERY FINE TWINNING		MAY HAVE LOST RADIOGENIC ARGON; AGE IS TOO LOW
4245	1	96.8	2.9	biotite	conventional K-Ar	6(CD-139)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.3	10.45	89			age of intrusion			
4245	2	91.5	4.6	hornblende	conventional K-Ar	6(CD-139)	"4.962E-04, 0.581E-04, 1.1167E-04"	2.57	3.464	86				HORNBLENDE CONCENTRATE CONTAINS SOME BIOTITE	AR-40 VALUE MISTAKENLY LISTED AS 3.464 E-9 -- COMPILER	AGE APPEARS TO BE TOO LOW
4246	1	101	4	biotite	conventional K-Ar	7(SP-5)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.94	11.91	75			age of intrusion			AGE ORIGINALLY REPORTED BY GEOCHRON AS 98.6 +/-3.6 M.Y. USING OLD CONSTANTS
4247	1	77.7	1	biotite	conventional K-Ar	USGS(M)-WC-1-560	"4.962E-04, 0.581E-04, 1.1167E-04"	8.93	10.209	93			minimum age of intrusion		"8.920%, 8.940% K2O"	ALTERATION MAY HAVE SIGNIFICANTLY LOWERED AGE
4248	1	85.7	0.9	biotite	conventional K-Ar	USGS(M)-RWT-129-73	"4.962E-04, 0.581E-04, 1.1167E-04"	9.09	11.48	86			age of metamorphic crystallization		"9.12%, 9.08%, 9.06% K2O"	MAY BE AGE OF BATHOLITH (GRANODIORITE) 200 METERS AWAY
4249	1	110	5	biotite	conventional K-Ar	USGS(D)-PS64B-13	"4.962E-04, 0.581E-04, 1.1167E-04"	8.5	13.9	94			age of intrusion		"8.43%, 8.57% K2O"	"AGE OF 108 M.Y. (OLD DECAY CONSTANTS) WAS REPORTED BY NOLAN, MERRIAM, AND BLAKE (1974) FOR THIS SAMPLE"
4250	1	20.7	0.8	plagioclase	conventional K-Ar	USGS(M)-B67-48	"4.962E-04, 0.581E-04, 1.1167E-04"	0.83	0.249	48			age of volcanism			"AGE OF 20.2 M.Y. (OLD DECAY CONSTANTS) WAS REPORTED BY NOLAN, MERRIAM, AND BLAKE (1974) FOR THIS SAMPLE"
4251	1	102	3	biotite	conventional K-Ar	USGS(D)-PS64B-14	"4.962E-04, 0.581E-04, 1.1167E-04"	8.31	12.5	96			age of intrusion			"AGE OF 99.5 M.Y. (OLD DECAY CONSTANTS) WAS REPORTED BY NOLAN, MERRIAM, AND BLAKE (1974) FOR THIS SAMPLE"
4252	1	34.1	1.5	biotite	conventional K-Ar	USGS(D)-BP64B-1	"4.962E-04, 0.581E-04, 1.1167E-04"	8.36	4.14	80			age of intrusion		"8.37%, 8.35% K2O"	
4253	1	17.2	0.6	sanidine	conventional K-Ar	USGS(D)-UE6E-1344.5(B)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.255	1.809	84			"sample contains inherited material, age is too old"	-60 +150 MESH	"7.25%, 7.26% K2O"	"SAMPLE CONTAMINATED WITH OLDER FELDSPAR; AGE TOO OLD, SHOULD BE ABOUT 9.5 M.Y. THE AGES OF THIS SAMPLE ILLUSTRATE THE CONTAMINATION PROBLEM PRESENT IN WATER-LAIN OR LOOSE TUFF MATERIALS"
4253	2	12.8	0.4	sanidine	conventional K-Ar	USGS(D)-UE6E-1344.5(B)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.585	1.399	76			"maximum age of volcanism, sample contains excess radiogenic argon, age is too old"	-60 +100 MESH UP-GRADED SAMPLE	"7.61%, 7.56% K2O"	
4253	3	31	0.7	sanidine	conventional K-Ar	USGS(D)-UE6E-1344.5(B)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.96	3.579	91			"sample contains inherited material, age is too old"	-100 +150 MESH UP-GRADED SAMPLE	"7.95%, 7.97% K2O"	
4254	1	5.7	0.2	whole rock	conventional K-Ar	USGS(D)-73-RCB-7	"4.962E-04, 0.581E-04, 1.1167E-04"	3.24	0.2682	61			age of volcanism		"3.25%, 3.23% K2O"	"AGE OF 5.6 M.Y. (OLD DECAY CONSTANTS) WAS REPORTED BY EKREN, BUCKNAM, CARR, DIXON, AND QUINLIVAN (1976) FOR THIS SAMPLE"
4255	1	92.4	2.2	biotite	conventional K-Ar	USGS(D)-3-67F	"4.962E-04, 0.581E-04, 1.1167E-04"	7.975	10.89	93			age of intrusion		"8.00%, 7.95% K2O"	
4256	1	27.1	0.7	biotite	conventional K-Ar	USGS(D)-LFL-66-GLD-71	"4.962E-04, 0.581E-04, 1.1167E-04"	7.645	3.008	76			age of volcanism		K2O BY ISOTOPE DILUTION	"AGE OF 26.5 M.Y. (OLD DECAY CONSTANTS) WAS REPORTED BY EKREN, BATH, DIXON, HEALY, AND QUINLIVAN (1974) FOR THIS SAMPLE"
4257	1	11.1	0.4	biotite	conventional K-Ar	USGS(D)-0-1-51	"4.962E-04, 0.581E-04, 1.1167E-04"	8.775	1.407	62			maximum age of volcanism		"8.78%, 8.77% K2O"	THIS AGE APPEARS TOO OLD BASED UPON STRATIGRAPHIC RELATIONSHIPS
4258	1	161	4	biotite	conventional K-Ar	USGS(D)-MC-74-BE-882	"4.962E-04, 0.581E-04, 1.1167E-04"	7.395	17.93	93			age of intrusion		"7.36%, 7.43% K20"	
4258	2	158	7	hornblende	conventional K-Ar	USGS(D)-MC-74-BE-882	"4.962E-04, 0.581E-04, 1.1167E-04"	0.5	1.189	86			age of intrusion		"0.49%, 0.51% K20"	
4259	1	25.9	0.9	sanidine	conventional K-Ar	USGS(D)-MC-74-BE-762A	"4.962E-04, 0.581E-04, 1.1167E-04"	8.885	3.338	89			age of volcanism		"8.90%, 8.87% K2O"	
4262	1	29		Unk		NOT GIVEN	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	
4263	1	71.4	3	biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.584E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
4264	1	73		adularia	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"								NO ANALYTICAL DATA GIVEN	AGE OF MINERALIZATION
4265	1	22.91	0.8	sanidine	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	13.79	4.577	47			minimum age of volcanism	ONE OF TWO SANIDINE CONCENTRATES		
4265	2	23.3	0.8	sanidine	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	11.37	3.838	56			minimum age of volcanism	ONE OF TWO SANIDINE CONCENTRATES		
4266	1	27.43	1	hornblende	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	2.385	0.949	49			age of volcanism		"2.37%, 2.40% K20"	
4267	1	23.35	0.8	sanidine	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	12.19	4.125	56			age of volcanism			
4268	1	30.2	0.8	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	6.8	2.981	66						"AGE APPEARS TO BE TOO OLD, OLDER THAN THE TUFFS THE DIKE INTRUDES"
4269	1	55.21	1.5	biotite	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	7.29	5.884	83			minimum age of intrusion			PLUTON IS PROBABLY LATE CRETACEOUS IN AGE
4270	1	110.15	3	biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04*"	8.5	13.9	94			age of intrusion	LAB. NO. D1228B (PS64B-31) - COMPILER	"8.43%, 8.57% K20"	"AGE PUBLISHED BY HOSE, BLAKE, AND SMITH (1976) AND ALSO BY NOLAN, MERRIAM, AND BLAKE (1974)"
4271	1			whole rock		NOT GIVEN										"A K-AR AGE OF 72 M.Y. WAS REPORTED MISTAKENLY FOR A SAMPLE FROM THE KERN MOUNTAINS. THE AGE ACTUALLY RESULTED FROM A 2-POINT WHOLE-ROCK RB-SR ISOCHRON. THIS AGE WAS REPORTED BY HOSE, BLAKE, AND SMITH (1976) WITH NO ANALYTICAL DATA GIVEN."
4273	1	34		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY M.L. SILBERMAN, USGS"
4274	1	58		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY E.H. MCKEE, USGS, IN 1975"
4275	1	152		hornblende	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY E.H. MCKEE, USGS, IN 1975"
4275	2	155		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY E.H. MCKEE, USGS, IN 1975"
4276	1	148		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY M.L. SILBERMAN, USGS"
4277	1	38		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY M.L. SILBERMAN, USGS"
4278	1	106		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY M.L. SILBERMAN, USGS"
4279	1	104		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY M.L. SILBERMAN, USGS"
4279	2	103		hornblende	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY M.L. SILBERMAN, USGS"
4280	1	24		sanidine	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY M.L. SILBERMAN, USGS"
4281	1	24		whole rock	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY M.L. SILBERMAN, USGS"
4282	1	15		plagioclase	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"UNPUBLISHED DATA PRODUCED BY M.L. SILBERMAN, USGS"
4283	1	124		hornblende	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
4284	1	180		hornblende	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
4285	1	145		Unk	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN; MAY BE AVERAGE OF SEVERAL AGES	"THIS AGE REPORTED AS 142 M.Y. (HORNBLENDE), 144 M.Y. (HORNBLENDE), 150 M.Y. (HORNBLENDE), AND 150 M.Y. (HORNBLENDE) IN CARLSON, LAIRD, PETERSON, SCHILLING, SILBERMAN, AND STEWART (1975)"
4286	1	98.4		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
4287	1	96.4		biotite	conventional K-Ar	NOT GIVEN	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
4288	1	155		Unk		NOT GIVEN	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
4289	1	40.13	2	biotite	conventional K-Ar	JG-GM-1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.36	4.3	85			age of intrusion			
4289	2	40.41	2	biotite	conventional K-Ar	JG-GM-1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.36	4.33	89			age of intrusion			
4290	1	1657.17	65	hornblende	conventional K-Ar	N-1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.482	18.85	95			age of metamorphic crystallization			
4292	1	923.27		microcline	conventional K-Ar	N-10	"4.72E-04, 0.585E-04, 1.19E-04*"	10.97	190.4	98						AGE TOO LOW
4292	2	1393.67		muscovite	conventional K-Ar	N-10	"4.72E-04, 0.585E-04, 1.19E-04*"	10.61	321.1	98						AGE IS TOO LOW
4293	1	1398.88		biotite	conventional K-Ar	N-11	"4.72E-04, 0.585E-04, 1.19E-04*"	9.38	285.4	97			age of intrusion			
4295	1	1397.78	50	biotite	conventional K-Ar	N-17	"4.72E-04, 0.585E-04, 1.19E-04*"	8.16	248	98						K-AR AGE IS TOO LOW
4296	1	1195.17		muscovite	conventional K-Ar	N-23	"4.72E-04, 0.585E-04, 1.19E-04*"	10.58	258.2	97						AGE IS TOO LOW
4297	1	794.02		microcline	conventional K-Ar	N-25	"4.72E-04, 0.585E-04, 1.19E-04*"	13.14	188.7	98						SPURIOUS AGE
4300	1	13.1		whole rock	conventional K-Ar	KA-1256	"4.72E-04, 0.585E-04, 1.19E-04"	0.664		50			age of volcanism	"BASALT, CRUSHED AND LEACHED WITH HF"	"0.551% K, ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN"	
4301	1	10.8		plagioclase	conventional K-Ar	KA 1205	"4.72E-04, 0.585E-04, 1.19E-04"	0.189		37			age of volcanism		0.15% K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	
4302	1	13.4		plagioclase	conventional K-Ar	KA-1300	"4.72E-04, 0.585E-04, 1.19E-04"	0.265		28			age of volcanism		0.220% K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	
4303	1	10		plagioclase	conventional K-Ar	KA-1245	"4.72E-04, 0.585E-04, 1.19E-04"	0.2177		60			age of volcanism		0.1807% K; ARGON CONTENT AND ALALYTICAL ERROR NOT GIVEN	
4304	1	12.4		plagioclase	conventional K-Ar	KA-1244	"4.72E-04, 0.585E-04, 1.19E-04"	0.6456		92			age of volcanism		0.5358% K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	
4305	1	11		whole rock	conventional K-Ar	KA-1259	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
4306	1	13.9		plagioclase	conventional K-Ar	KA-1261	"4.72E-04, 0.585E-04, 1.19E-04"	1.12		67			age of volcanism		0.933% K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	
4307	1	15.9		plagioclase	conventional K-Ar	KA-1264	"4.72E-04, 0.585E-04, 1.19E-04"	0.648		70			age of volcanism		0.538 % K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	
4308	1	22.7		sanidine	conventional K-Ar	KA-1267	"4.72E-04, 0.585E-04, 1.19E-04"	9.154		93			age of volcanism		7.597% K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	
4309	1	19.8		plagioclase	conventional K-Ar	KA-1273	"4.72E-04, 0.585E-04, 1.19E-04"	0.1795		48			"maximum age of volcanism, sample contains inherited material, age is too old"		0.149% K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	CONTAINS OLDER DETRITAL FELDSPAR
4310	1	5.7		plagioclase	conventional K-Ar	KA-1286	"4.72E-04, 0.585E-04, 1.19E-04"	0.468		49			age of volcanism		0.388% K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	
4311	1	22.8		sanidine	conventional K-Ar	KA-1288	"4.72E-04, 0.585E-04, 1.19E-04"	9.91		80			age of volcanism		8.225% K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	
4311	2	22.7		plagioclase	conventional K-Ar	KA-1289	"4.72E-04, 0.585E-04, 1.19E-04"	1.04		71			age of volcanism		0.862% K; ARGON CONTENT AND ANALYTICAL ERROR NOT GIVEN	
4313	1	155		biotite	conventional K-Ar	KA-840	"4.72E-04, 0.584E-04, 1.19E-04"	6.15		77			age of intrusion		5.10% K	
4314	1	86.1		biotite	conventional K-Ar	KA-1516	"4.72E-04, 0.584E-04, 1.19E-04"	9.106		80			age of intrusion	16-28 MESH-SIZE GRAINS	7.557% K	
4314	2	89.9	0.6	hornblende	conventional K-Ar	KA1516	"4.72E-04, 0.584E-04, 1.19E-04"	1.129		67			age of intrusion	28-60 MESH-SIZE GRAINS	0.937% K	
4315	1	83.5		biotite	conventional K-Ar	KA-1517	"4.72E-04, 0.584E-04, 1.19E-04"	8.868		91			age of intrusion	10-16 MESH-SIZE GRAINS	7.359% K	
4316	1	140.4		hornblende	conventional K-Ar	KA61-190	"4.72E-04, 0.584E-04, 1.19E-04"	0.886		91			age of intrusion	100-115 MESH-SIZE GRAINS	0.735% K	
4317	1	89.1		hornblende	conventional K-Ar	KA61-191	"4.72E-04, 0.584E-04, 1.19E-04"	0.705		80			age of intrusion	100-115 MESH-SIZE GRAINS	0.585% K	
4318	1	93.8		biotite	conventional K-Ar	KA61-007	"4.72E-04, 0.584E-04, 1.19E-04"	7.085		92			age of intrusion	60-80 MESH-SIZE GRAINS	5.880% K	
4319	1	90.2		hornblende	conventional K-Ar	KA61-018	"4.72E-04, 0.584E-04, 1.19E-04"	0.617		58			age of intrusion	100-115 MESH-SIZE GRAINS	0.512% K	
4320	1	84.3		hornblende	conventional K-Ar	KA61-022	"4.72E-04, 0.584E-04, 1.19E-04"	0.664		38			age of intrusion	100-115 MESH-SIZE GRAINS	0.551% K	
4321	1	91.9		biotite	conventional K-Ar	KA71-002	"4.72E-04, 0.584E-04, 1.19E-04"	7.435		85			age of intrusion	60-80 MESH-SIZE GRAINS	6.170% K	
4322	1	75.4		biotite	conventional K-Ar	KA71-006	"4.72E-04, 0.584E-04, 1.19E-04"	8.266		85			age of intrusion	60-80 MESH-SIZE GRAINS	6.860% K	
4323	1	75.3		hornblende	conventional K-Ar	KA61-194	"4.72E-04, 0.584E-04, 1.19E-04"	0.495		73			age of intrusion	100-115 MESH-SIZE GRAINS	0.411% K	
4324	1	86.1		biotite	conventional K-Ar	KA71-022	"4.72E-04, 0.584E-04, 1.19E-04"	9.821		79			age of intrusion	60-80 MESH-SIZE GRAINS	8.150% K	
4325	1	100.5		hornblende	conventional K-Ar	KA61-196	"4.72E-04, 0.584E-04, 1.19E-04"	0.562		68			age of intrusion	100-150 MESH-SIZE GRAINS	0.466% K	
4326	1	101.9		hornblende	conventional K-Ar	KA61-188	"4.72E-04, 0.584E-04, 1.19E-04"	0.675		73			age of intrusion	100-150 MESH SIZE GRAINS	0.560% K	
4327	1	156.7		biotite	conventional K-Ar	KA61-005	"4.72E-04, 0.584E-04, 1.19E-04"	8.385		94			age of intrusion	80-100 MESH-SIZE GRAINS	6.960% K	
4328	1	26.78	1.3	non-mineral substance	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.83	1.876	8584			age of volcanism	NONHYDRATED GLASS	(LISTED 3 M.Y. ANALYTICAL ERROR IS IN ERROR--COMPILER)	"AGE ALSO PUBLISHED BY MARVIN, MEHNERT, AND MCKEE (1973), P. 9, NUMBER 37"
4329	1	26.18	0.8	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	2.973	87			age of volcanism			"AGE ALSO PUBLISHED BY MARVIN, MEHNERT, AND MCKEE (1973), P. 10, NUMBER 42"
4329	2	23.06	0.7	sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	11.72	3.916	97			age of volcanism			"AGE ALSO PUBLISHED BY MARVIN, MEHNERT, AND MCKEE (1973), PAGE 10, NUMBER 42"
4330	1	26.74	0.8	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	3.304	75			age of volcanism			
4330	2	25.31	0.7	sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.56	1.673	85			age of volcanism			
4331	1	26.04	0.6	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	3.24	77			age of volcanism			
4331	2	24.44	0.6	sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.42	1.92	85			age of volcanism			
4332	1	23.12	0.7	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.21	2.75	60			age of volcanism			
4333	1	31.66	3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.96	3.2	62			age of volcanism			
4334	1	11.15	1	K feldspar	conventional K-Ar	61ENH6	"4.72E-04, 0.585E-04, 1.19E-04*"	7.74	1.246	71			age of volcanism			
4335	1	126.82	6	biotite	conventional K-Ar	57-W-51	"4.72E-04, 0.585E-04, 1.19E-04*"	8.48	16.04	93						"THIS IS PROBABLY A REDUCED AGE, INTRUSIVE IS PROBABLY JURASSIC"
4337	1	20.2	0.8	plagioclase	conventional K-Ar	B67-48	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
4338	1	19.6	0.6	whole rock	conventional K-Ar	E-7	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
4339	1	32.9	1.3	biotite	conventional K-Ar	PS65B-24	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
4340	1	35.9	1.1	biotite	conventional K-Ar	PS65B-11	"4.72E-04, 0.585E-04, 1.19E-04*"	7.7	4.02	83			age of volcanism		"7.74%, 7.66% K2O (AN AGE OF 35.0 M.Y. IS CALCULATED WITH THE ABOVE AR AND K VALUES--COMPILER)"	
4341	1	103	2	muscovite	conventional K-Ar	E-3	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
4342	1	101.57	3	biotite	conventional K-Ar	PS64B-14	"4.72E-04, 0.585E-04, 1.19E-04*"	8.31	12.5	96			age of intrusion		"8.27%, 8.35% K2O"	
4343	1	110.15	3	biotite	conventional K-Ar	PS64B-31	"4.72E-04, 0.585E-04, 1.19E-04*"	8.5	13.9	94			age of intrusion		"8.43%, 8.57% K2O"	"AGE ALSO PUBLISHED BY HOSE, BLAKE, AND SMITH (1976)"
4344	1	39.8	1.6	plagioclase	conventional K-Ar	HG434	"4.72E-04, 0.585E-04, 1.19E-04"								NO ANALYTICAL DATA GIVEN	AGE APPARENTLY TOO OLD; AVERAGE OF 5 OTHER K-AR AGES IS 34.5 M.Y.
4345	1	4.98	0.15	whole rock	conventional K-Ar	G294	"4.962E-04, 0.581E-04, 1.1167E-04"	0.367	0.0263	161917			age of volcanism		"2.728 E-12, 2.47 E-12, AND 2.702 E-12 MOL/GM AR-40"	
4346	1	14.6	0.4	biotite	conventional K-Ar	GC492	"4.962E-04, 0.581E-04, 1.1167E-04"	8.64	1.824	70			age of volcanism			
4347	1	14.3	0.4	sanidine	conventional K-Ar	GC15	"4.962E-04, 0.581E-04, 1.1167E-04"	8.83	1.825	80			age of volcanism			
4347	2	14.6	0.4	biotite	conventional K-Ar	GC15	"4.962E-04, 0.581E-04, 1.1167E-04"	8.57	1.811	73			age of volcanism			
4348	1	22.8	0.7	whole rock	conventional K-Ar	G1004	"4.962E-04, 0.581E-04, 1.1167E-04"	3.31	1.094	82			age of volcanism			
4349	1	23.8	0.7	hornblende	conventional K-Ar	G1003	"4.962E-04, 0.581E-04, 1.1167E-04"	0.742	0.2554	52			age of volcanism			
4350	1	24.2	0.7	sanidine	conventional K-Ar	GC331	"4.962E-04, 0.581E-04, 1.1167E-04"	6.36	2.229	62			age of volcanism			
4351	1	25.2	0.8	sanidine	conventional K-Ar	GC501	"4.962E-04, 0.581E-04, 1.1167E-04"	4.4	1.611	51			age of volcanism			
4352	1	25.9	0.8	sanidine	conventional K-Ar	GC479	"4.962E-04, 0.581E-04, 1.1167E-04"	6.6	2.481	54			age of volcanism			
4353	1	106	3	biotite	conventional K-Ar	GC213	"4.962E-04, 0.581E-04, 1.1167E-04"	9.16	14.46	92			age of intrusion			
4353	2	106	3	hornblende	conventional K-Ar	GC213	"4.962E-04, 0.581E-04, 1.1167E-04"	0.535	0.8405	88			age of intrusion			
4354	1	102	3	amphiboles	conventional K-Ar	GC412	"4.962E-04, 0.581E-04, 1.1167E-04"	0.397	0.598	71			age of intrusion	CLINOAMPHIBOLE		
4355	1	104	3	muscovite	conventional K-Ar	G41	"4.962E-04, 0.581E-04, 1.1167E-04"	10.3	15.87	98			age of intrusion			
4356	1	101	3	biotite	conventional K-Ar	IP24	"4.962E-04, 0.581E-04, 1.1167E-04"	3.82	5.727	95			minimum age of intrusion	CHLORITIZED BIOTITE		
4357	1	72.5	2.2	biotite	conventional K-Ar	G(GC10)	"4.962E-04, 0.581E-04, 1.1167E-04"	5.39	5.733	75			minimum age of intrusion	CHLORITIZED BIOTITE		
4358	1	176	5	hornblende	conventional K-Ar	G127A	"4.962E-04, 0.581E-04, 1.1167E-04"	0.35	0.9303	70			age of intrusion			
4359	1	42.9	1.3	biotite	conventional K-Ar	IP NEW CUT	"4.962E-04, 0.581E-04, 1.1167E-04"	3.06	1.911	35			age not evaluated	CHLORITIZED BIOTITE		
4360	1	73.6	2.9	sericite	conventional K-Ar	SILVER COIN	"4.962E-04, 0.581E-04, 1.1167E-04"	3.63	3.924	21			minimum age of intrusion			MAY BE AGE OF FIRST OF TWO ALTERATION EVENTS
4360	2	15.1	0.5	jarosite	conventional K-Ar	SILVER COIN	"4.962E-04, 0.581E-04, 1.1167E-04"	7.99	1.743	1011				SILVER-BEARING SILICEOUS JAROSITE COATING	"1.798 E-10, 1.688 E-10 MOL/GM AR-40"	MAY BE AGE OF SECOND OF TWO ALTERATION EVENTS (A MINERALIZATION EVENT)
4361	1	105	3	muscovite	conventional K-Ar	G52	"4.962E-04, 0.581E-04, 1.1167E-04"	8.59	13.3	92						METAMORPHIC AGE RESULTING FROM CRETACEOUS PLUTONISM
4362	1	92.7	2.8	hornblende	conventional K-Ar	GC-9	"4.962E-04, 0.581E-04, 1.1167E-04"	0.68	0.9549	87			age of metamorphic crystallization			
4363	1	86.2	2.6	whole rock	conventional K-Ar	GC212A	"4.962E-04, 0.581E-04, 1.1167E-04"	1.268	1.612	88			minimum age of metamorphic crystallization	"MAJOR PHASES CONTAINING K, PRINCIPALLY PLAGIOCLASE, BADLY ALTERED"		
4364	1	88	2.6	biotite	conventional K-Ar	BS742	"4.962E-04, 0.581E-04, 1.1167E-04"	8.69	11.27	87			age of intrusion			MAY ALSO BE AGE OF ALTERATION AND MINERALIZATION OF THE STOCK
4365	1	146	6	hornblende	conventional K-Ar	CG521	"4.962E-04, 0.581E-04, 1.1167E-04"	1.562	3.418	92			age of intrusion			
4366	1	151	6	biotite	conventional K-Ar	BS740	"4.962E-04, 0.581E-04, 1.1167E-04"	8.98	20.4	93			age of intrusion			
4367	1	153	6	biotite	conventional K-Ar	GC517A	"4.962E-04, 0.581E-04, 1.1167E-04"	5.94	13.65	94			age of intrusion			
4368	1	155	6	biotite	conventional K-Ar	GC519	"4.962E-04, 0.581E-04, 1.1167E-04"	8.79	20.51	93			age of intrusion			
4370	1	14.78		adularia	conventional K-Ar	10 (J-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.35	2.212	82					"DATA WAS RELEASED BY M.L. SILBERMAN, USGS. CALCULATED AGE IS 14.4 +/-0.4 M.Y."	AGE OF MINERALIZATION
4371	1	5.64	0.82	plagioclase	conventional K-Ar	W1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.339	0.0276	410			age of volcanism		"0.321%, 0.361%, 0.335% K20; 0.0296 E-10, 0.0255 E-10 MOL/GM AR-40"	
4372	1	6.85	0.33	plagioclase	conventional K-Ar	W2	"4.72E-04, 0.585E-04, 1.19E-04*"	0.817	0.0807	29			age of volcanism		"0.823%, 0.811% K2O"	
4373	1	7.63	0.16	whole rock	conventional K-Ar	W3	"4.72E-04, 0.585E-04, 1.19E-04*"	1.265	0.1392	6173			age of volcanism		"1.26%, 1.27% K2O; 0.1387 E-10, 0.1397 E-10 MOL/GM AR-40"	
4374	1	5.03	0.13	plagioclase	conventional K-Ar	W4	"4.72E-04, 0.585E-04, 1.19E-04"	0.754	0.462	37			age of volcanism		"(*),0.751%, 0.757% K2O; 0.4697 E-10, 0.4544 E-10 MOL/GM AR-40"	
4375	1	2.08	0.06	glass	conventional K-Ar	W5	"4.72E-04, 0.585E-04, 1.19E-04*"	4.57	0.1367	2836			age of volcanism	OBSIDIAN	"4.55%, 4.55%, 4.58%, 4.60% K2O; 0.1370 E-10, 0.1364 E-10 MOL/GM AR-40"	
4376	1	6.81	0.17	plagioclase		W6	"4.72E-04, 0.585E-04, 1.19E-04*"	0.618	0.0608	3449			age of volcanism		10	
4376	2	3.24	0.28	biotite	conventional K-Ar	W6	"4.72E-04, 0.585E-04, 1.19E-04*"	6.12	0.2857	18					"6.03%, 6.23%, 6.15%, 6.09% K2O"	AGE IS TOO LOW DUE TO DEUTERIC ALTERATION
4377	1	9.1	0.19	plagioclase	conventional K-Ar	W7	"4.72E-04, 0.585E-04, 1.19E-04*"	0.6675	0.0876	4147			age of volcanism		"0.666%, 0.669% K2O; 0.0874 E-10, 0.0879 E-10 MOL/GM AR-40"	
4378	1	9.33	0.19	plagioclase	conventional K-Ar	W8	"4.72E-04, 0.585E-04, 1.19E-04*"	0.641	0.0863	4650			age of volcanism		"0.640%, 0.642% K2O; 0.0864 E-10, 0.0863 E-10 MOL/GM AR-40"	
4379	1	8.68	0.38	plagioclase	conventional K-Ar	W9	"4.72E-04, 0.585E-04, 1.19E-04*"	0.69	0.0864	1415			age of volcanism		"0.688%, 0.687%, 0.690%, 0.694% K2O; 0.0880 E-10, 0.0849 E-10 MOL/GM AR-40"	
4380	1	3.77	0.12	plagioclase	conventional K-Ar	W10	"4.72E-04, 0.585E-04, 1.19E-04*"	0.474	0.0257	2428			age of volcanism		"O.474%, 0.474% K2O; 0.0255 E-10, 0.0260 E-10 MOL/GM AR-40"	
4381	1	5.78	0.18	plagioclase	conventional K-Ar	W11	"4.72E-04, 0.585E-04, 1.19E-04*"	0.576	0.048	2728			age of volcanism		"0.577%, 0.575% K2O; 0.0478 E-10, 0.0482 E-10 MOL/GM AR-40"	
4382	1	2.81	0.08	sanidine	conventional K-Ar	W12	"4.72E-04, 0.585E-04, 1.19E-04*"	10.9	0.4413	81			age of volcanism		"10.90%, 10.90% K2O"	
4383	1	8.08	0.55	whole rock	conventional K-Ar	W13	"4.72E-04, 0.585E-04, 1.19E-04*"	0.374	0.0436	16			age of volcanism		"0.373%, 0.375% K2O"	
4383	2	8.02	0.55	whole rock	conventional K-Ar	W13	"4.72E-04, 0.585E-04, 1.19E-04*"	0.3725	0.0431	16					"0.371%, 0.374% K2O"	
4384	1	6.86	0.2	anorthoclase	conventional K-Ar	W14	"4.72E-04, 0.585E-04, 1.19E-04*"	4.975	0.4923	40			age of volcanism		"5.00%, 4.95% K2O"	
4385	1	6.1	0.18	anorthoclase	conventional K-Ar	W15	"4.72E-04, 0.585E-04, 1.19E-04*"	5.68	0.4998	48			age of volcanism		"5.69%, 5.67% K2O"	
4386	1	9.39	0.19	sanidine	conventional K-Ar	W16	"4.72E-04, 0.585E-04, 1.19E-04*"	7.25	0.9826	8181			age of volcanism		"7.26%, 7.24% K2O; 0.9890 E-10, 0.9763 E-10 MOL/GM AR-40"	
4387	1	16.22	0.4	sanidine	conventional K-Ar	W17	"4.72E-04, 0.585E-04, 1.19E-04*"	7.275	1.707	8084			age of volcanism		"7.19%, 7.36% K2O; 1.709 E-10, 1.705 E-10 MOL/GM AR-40"	
4388	1	13.91	0.28	sanidine	conventional K-Ar	W18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.565	1.722	7879			age of volcanism		"8.51%, 8.62% K2O; 1.749 E-10, 1.695 E-10 MOL/GM AR-40"	
4389	1	46.76	1.4	feldspar	conventional K-Ar	FO441	"4.72E-04, 0.585E-04, 1.19E-04*"	1.651	1.126	2326			age of volcanism		"1.385%, 1.355% K; 0.00455 AND 0.00445 PPM AR-40"	
4390	1	50.42	2	whole rock	conventional K-Ar	RO411	"4.72E-04, 0.585E-04, 1.19E-04*"	4.795	3.53	6367			age of volcanism		"3.99%, 3.97% K; 0.0139 AND 0.0143 PPM AR-40"	
4391	1	56.58	1.7	biotite	conventional K-Ar	BO445	"4.72E-04, 0.585E-04, 1.19E-04*"	6.785	5.615	5055			age of volcanism		"5.65%, 5.61% K; 0.0230 AND 0.0219 PPM AR-40"	
4392	1	40.69	3	feldspar	conventional K-Ar	FO457	"4.72E-04, 0.585E-04, 1.19E-04*"	0.4625	0.274	1229			age of volcanism		"0.381%, 0.387% K; 0.00114 AND 0.00105 PPM AR-40"	
4393	1	11.76	0.3	biotite	conventional K-Ar	KA-1661	"4.72E-04, 0.584E-04, 1.19E-04*"	8.2	1.393	62			age of volcanism		REPLICATE K ANALYSES	
4394	1	11.51	0.3	biotite	conventional K-Ar	KA-1693	"4.72E-04, 0.584E-04, 1.19E-04*"	8.33	1.385	59			age of volcanism		REPLICATE K ANALYSES	
4395	1	10.53	0.7	biotite	conventional K-Ar	KA-1694	"4.72E-04, 0.584E-04, 1.19E-04*"	7.98	1.213	27			age of volcanism		REPLICATE K ANALYSES	
4396	1	4.27	2.1	whole rock	conventional K-Ar	KA-1811	"4.72E-04, 0.584E-04, 1.19E-04*"	1.292	0.0796	4			age of volcanism		REPLICATE K ANALYSES	
4397	1	3.34	0.1	biotite	conventional K-Ar	KA-1851	"4.72E-04, 0.584E-04, 1.19E-04*"	8.236	0.3966	59			age of volcanism		REPLICATE K ANALYSES	
4398	1	11.47	0.2	sanidine	conventional K-Ar	KA-1855	"4.72E-04, 0.584E-04, 1.19E-04*"	9.914	1.642	84			age of volcanism		REPLICATE K ANALYSES	
4399	1	11.34	0.2	sanidine	conventional K-Ar	KA-1856	"4.72E-04, 0.584E-04, 1.19E-04*"	7.729	1.266	85			age of volcanism		REPLICATE K ANALYSES	
4400	1	6.09	2.5	plagioclase	conventional K-Ar	KA-1857	"4.72E-04, 0.584E-04, 1.19E-04*"	0.459	0.0403	5			age of volcanism		REPLICATE K ANALYSES	
4401	1	12	0.8	plagioclase	conventional K-Ar	KA-1906	"4.72E-04, 0.584E-04, 1.19E-04*"	1.047	0.1815	28			age of volcanism		REPLICATE K ANALYSES	
4401	2	11.7	0.2	biotite	conventional K-Ar	KA-1915	"4.72E-04, 0.584E-04, 1.19E-04*"	8.169	1.381	68			age of volcanism		REPLICATE K ANALYSES	
4402	1	9.99	0.2	biotite	conventional K-Ar	KA-1907	"4.72E-04, 0.584E-04, 1.19E-04*"	7.757	1.119	67			age of volcanism		REPLICATE K ANALYSES	
4403	1	9.84	0.3	biotite	conventional K-Ar	KA-1908	"4.72E-04, 0.584E-04, 1.19E-04*"	7.814	1.11	54			age of volcanism		REPLICATE K ANALYSES	
4404	1	9.73	0.3	biotite	conventional K-Ar	KA-1909	"4.72E-04, 0.584E-04, 1.19E-04*"	7.904	1.11	49			age of volcanism		REPLICATE K ANALYSES	
4405	1	9.14	0.2	plagioclase	conventional K-Ar	KA-1972	"4.72E-04, 0.584E-04, 1.19E-04*"	0.67	0.0884	68			age of volcanism		REPLICATE K ANALYSES	
4406	1	8.03	0.2	plagioclase	conventional K-Ar	KA-1973	"4.72E-04, 0.584E-04, 1.19E-04*"	1.053	0.122	60			age of volcanism		REPLICATE K ANALYSES	
4407	1	22.9	0.3	sanidine	conventional K-Ar	KA-1974	"4.72E-04, 0.584E-04, 1.19E-04*"	10.662	3.531	95			age of volcanism		REPLICATE K ANALYSES	
4407	2	22.6	2	plagioclase	conventional K-Ar	KA-1987	"4.72E-04, 0.584E-04, 1.19E-04*"	0.39	0.1277	20			age of volcanism		REPLICATE K ANALYSES	
4408	1	3.26	0.7	plagioclase	conventional K-Ar	KA-1980	"4.72E-04, 0.584E-04, 1.19E-04*"	0.407	0.0191	9			age of volcanism		REPLICATE K ANALYSES	
4409	1	3.44	0.3	biotite	conventional K-Ar	KA-1984	"4.72E-04, 0.584E-04, 1.19E-04*"	7.382	0.3659	24			age of volcanism		REPLICATE K ANALYSES	
4409	2	3.15	0.3	biotite	conventional K-Ar	KA-1984R	"4.72E-04, 0.584E-04, 1.19E-04*"	7.382	0.3346	20			age of volcanism		REPLICATE K ANALYSES	
4409	3	2.38	1.6	plagioclase	conventional K-Ar	KA-1993	"4.72E-04, 0.584E-04, 1.19E-04*"	0.431	0.0148	3					REPLICATE K ANALYSES	AGE APPEARS TOO LOW BASED UPON BIOTITE AGES
4410	1	8.59	0.2	plagioclase	conventional K-Ar	KA-1990	"4.72E-04, 0.584E-04, 1.19E-04*"	0.725	0.0899	78			age of volcanism		REPLICATE K ANALYSES	
4411	1	9.75	0.3	plagioclase	conventional K-Ar	KA-1998	"4.72E-04, 0.584E-04, 1.19E-04*"	0.794	0.1118	55			age of volcanism		REPLICATE K ANALYSES	
4411	2	9.57	0.3	biotite	conventional K-Ar	KA-2049	"4.72E-04, 0.584E-04, 1.19E-04*"	8.43	1.165	50			age of volcanism		REPLICATE K ANALYSES	
4412	1	1.03	0.1	plagioclase	conventional K-Ar	KA-1999	"4.72E-04, 0.584E-04, 1.19E-04*"	0.699	0.0104	32			age of volcanism		REPLICATE K ANALYSES	
4413	1	2.59	0.3	plagioclase	conventional K-Ar	KA-2002	"4.72E-04, 0.584E-04, 1.19E-04*"	0.722	0.0269	17			age of volcanism		REPLICATE K ANALYSES	
4413	2	2.58	0.1	biotite	conventional K-Ar	KA-2004	"4.72E-04, 0.584E-04, 1.19E-04*"	8.493	0.3159	25			age of volcanism		REPLICATE K ANALYSES	
4414	1	26.39	0.5	sanidine	conventional K-Ar	KA-2044	"4.72E-04, 0.584E-04, 1.19E-04*"	10.738	4.1097	95			age of volcanism		REPLICATE K ANALYSES	
4415	1	12.14	0.2	sanidine	conventional K-Ar	KA-2045	"4.72E-04, 0.584E-04, 1.19E-04*"	9.903	1.736	92			age of volcanism		REPLICATE K ANALYSES	
4416	1	24.13	0.4	sanidine	conventional K-Ar	KA-2074	"4.72E-04, 0.584E-04, 1.19E-04*"	10.534	3.684	95			age of volcanism		REPLICATE K ANALYSES	
4417	1	3.72	0.4	plagioclase	conventional K-Ar	KA-2076	"4.72E-04, 0.584E-04, 1.19E-04*"	0.429	0.023	16			age of volcanism		REPLICATE K ANALYSES	
4418	1	0.92	0.1	sanidine	conventional K-Ar	KA-2081	"4.72E-04, 0.584E-04, 1.19E-04*"	8.833	0.117	61			age of volcanism		REPLICATE K ANALYSES	
4419	1	2.92	0.1	whole rock	conventional K-Ar	KA-2086	"4.72E-04, 0.584E-04, 1.19E-04*"	2.426	0.1019	46			age of volcanism		REPLICATE K ANALYSES	
4422	1	1669.41		hornblende	conventional K-Ar	U-6B	"4.72E-04, 0.585E-04, 1.19E-04*"	0.49	19.38	93			age of metamorphic crystallization			
4423	1	1632.86		hornblende	conventional K-Ar	A-3	"4.72E-04, 0.585E-04, 1.19E-04*"	1.452	55.52	99			minimum age of intrusion			
4431	1	1698.93		hornblende	conventional K-Ar	A-7	"4.72E-04, 0.585E-04, 1.19E-04*"	0.712	28.93	65			age of metamorphic crystallization			
4432	1	1613.85		muscovite	conventional K-Ar	A-8A	"4.72E-04, 0.585E-04, 1.19E-04*"	10.59	397.8	99			minimum age of intrusion			
4440	1	1634.63		muscovite	conventional K-Ar	A-31	"4.72E-04, 0.585E-04, 1.19E-04*"	10.47	401	99			age of intrusion			
4449	1	3	1.1	whole rock	conventional K-Ar	1 USGS(D)-A-17	"4.962E-04, 0.581E-04, 1.1167E-04"	1.055	0.0458	44			minimum age of intrusion		"1.06%, 1.05% K2O"	
4450	1	33.9	1.1	whole rock	conventional K-Ar	2 USGS(D)-A-U23	"4.962E-04, 0.581E-04, 1.1167E-04"	1.72	0.848	49			age not evaluated		"1.74%, 1.70% K2O"	
4451	1	6.2	0.4	whole rock	conventional K-Ar	3 USGS(D)-A-KV4	"4.962E-04, 0.581E-04, 1.1167E-04"	0.625	0.0562	38			minimum age of intrusion		"0.63%, 0.62% K2O (LISTED AR-40 VALUE OF 0.562 MOL/GM IS AN ERROR)"	
4452	1	243	0.8	whole rock	conventional K-Ar	4 USGS(D)-A-A31	"4.962E-04, 0.581E-04, 1.1167E-04"	1.93	0.6793	43			age not evaluated		"1.91%, 1.95% K2O"	
4453	1	5.2	0.9	plagioclase	conventional K-Ar	5 USGS(D)-A-S2	"4.962E-04, 0.581E-04, 1.1167E-04"	0.29	0.0219	11			age not evaluated		"0.29%, 0.29% K2O"	
4454	1	55.3	6.7	plagioclase	conventional K-Ar	6 USGS(D)-A-K18	"4.962E-04, 0.581E-04, 1.1167E-04"	0.25	0.2023	49			age of volcanism		"0.25%, 0.25% K2O"	"THIS IS ONE OF THE OLDEST RADIOMETRIC AGES REPORTED FOR THIS AREA AND MAY SIGNIFY THE AGE OF THE ""BASEMENT ROCKS"""
4455	1	14.7	1.2	plagioclase	conventional K-Ar	7 USGS(D)-WC-89-70	"4.962E-04, 0.581E-04, 1.1167E-04"	0.32	0.0681	25			age not evaluated		"0.32%, 0.32% K2O"	
4456	1	17.8	1.1	plagioclase	conventional K-Ar	8 USGS(D)-KI-3	"4.962E-04, 0.581E-04, 1.1167E-04"	0.96	0.247	22			age not evaluated		"0.96%, 0.96% K2O"	
4457	1	64.7	3	sanidine	conventional K-Ar	9 USGS(M)-62AHR-77	"4.962E-04, 0.581E-04, 1.1167E-04"	7.94	7.526	80			age of intrusion		"7.93%, 7.95% K2O"	
4458	1	128	4	hornblende	conventional K-Ar	10 USGS(M)-62AHR-79	"4.962E-04, 0.581E-04, 1.1167E-04"	0.62	1.186	84			age of intrusion			
4459	1	70.9	3.3	biotite	conventional K-Ar	11 USGS(M)-63ACO-254	"4.962E-04, 0.581E-04, 1.1167E-04"	7.22	7.519	81			age of intrusion		"7.08%, 7.36% K2O"	
4460	1	120	3	biotite	conventional K-Ar	12 USGS(M)-63ACO-414	"4.962E-04, 0.581E-04, 1.1167E-04"	8.52	15.24	89			age of intrusion		"8.48%, 8.55% K2O"	
4461	1	1235	60	biotite	conventional K-Ar	13 USGS(W)-123	"4.962E-04, 0.581E-04, 1.1167E-04"	7.97	203.7	97						"THIS IS A REDUCED AGE; INITIAL CRYSTALLIZATION OF THE BRADY BUTTE GRANODIORITE OCCURRED 1770 M.Y. AGO (ANDERSON AND OTHERS,  1971)"
4462	1	1270	60	biotite	conventional K-Ar	14 USGS(W)-550	"4.962E-04, 0.581E-04, 1.1167E-04"	8.44	224.2	100						"THIS IS A REDUCED AGE; INITIAL CRYSTALLIZATION OF THE BRADY BUTTE GRANODIORITE OCCURRED 1770 M.Y. AGO (ANDERSON AND OTHERS,  1971)"
4463	1	1670	80	biotite	conventional K-Ar	15 USGS(W)-CAA-2	"4.962E-04, 0.581E-04, 1.1167E-04"	7.84	310.7	100			minimum age of intrusion			"A ZIRCON U-PB AGE OF 1760 +/-15 M.Y. FOR THE GRANODIORITE HAS BEEN DETERMINED (ANDERSON AND OTHERS, 1971)"
4465	1	1360	40	biotite	conventional K-Ar	17 USGS(D)-CAA-6	"4.962E-04, 0.581E-04, 1.1167E-04"	8.54	250.2	99			minimum age of intrusion		"8.62%, 8.47% K2O"	
4468	1	25	0.8	biotite	conventional K-Ar	20 USGS(D)-73D52	"4.962E-04, 0.581E-04, 1.1167E-04"	6.445	2.338	71					"6.42%, 6.47% K2O"	"AGE IS SIMILAR TO PUBLISHED AGES (MARVIN AND OTHERS, 1973, P. 20) FOR ROCKS IN THE RINCON MOUNTAINS SUGGESTING A STRONG THERMAL EVENT AT THIS TIME ALTHOUGH ROCK IS PROBABLY 1400-1500 M.Y. OLD. DREWES (1977, USGS MAP I-997) PUBLISHED AN AGE OF 24.4 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED."
4469	1	1340	60	biotite	conventional K-Ar	21 USGS(D)-74D62	"4.962E-04, 0.581E-04, 1.1167E-04"	6.67	190.6	99			minimum age of intrusion		"6.61%, 6.73% K2O"	"DREWES (1977, MAP I-997) PUBLISHED AN AGE OF 1380 M.Y. FOR THIS BIOTITE."
4469	2	1415	50	muscovite	conventional K-Ar	21 USGS(D)-74D62	"4.962E-04, 0.581E-04, 1.1167E-04"	7.665	236.8	99			age of intrusion		"7.67%, 7.66% K2O"	"DREWES (1977, MAP I-977) PUBLISHED AN AGE OF 1400 M.Y. FOR THIS MUSCOVITE; DECAY CONSTANT SINCE REVISED."
4470	1	1395	50	biotite	conventional K-Ar	22 USGS(D)-74D57	"4.962E-04, 0.581E-04, 1.1167E-04"	7.93	240.5	100			age of intrusion		"7.90%, 7.96% K2O"	DREWES (USGS MAP I-997) PUBLISHED AN AGE OF 1390 M.Y. FOR THIS BIOTITE; DECAY CONSTANT SINCE REVISED.
4470	2	1390	50	muscovite	conventional K-Ar	22 USGS(D)-74D57	"4.962E-04, 0.581E-04, 1.1167E-04"	6.665	200.4	99			age of intrusion		"6.67%, 6.66% K2O"	DREWES (USGS MAP I-997) PUBLISHED AN AGE OF 1380 M.Y. FOR THIS MUSCOVITE; DECAY CONSTANT SINCE REVISED.
4471	1	27.6	0.9	biotite	conventional K-Ar	23 USGS(D)-71D194	"4.962E-04, 0.581E-04, 1.1167E-04"	9.01	3.609	78					"9.03%, 8.99% K2O"	"AGE AGREES WITH PUBLISHED AGES (MARVIN AND OTHERS, 1973, P. 20) FOR ROCKS IN SOUTHERN RINCON MOUNTAINS AND SUGGESTS A STRONG THERMAL EVENT DURING LATE OLIGOCENE TIME. QUARTZ MONZONITE IS PROBABLY 1400-1500 M.Y. OLD. DREWES (USGS MAP I-1109) PUBLISHED AN AGE OF 27.0 M.Y. FOR THIS BIOTITE; DECAY CONSTANT SINCE REVISED."
4471	2	28.5	0.6	muscovite	conventional K-Ar	23 USGS(D)-71D194	"4.962E-04, 0.581E-04, 1.1167E-04"	10.175	4.211	89					"10.18%, 10.17% K2O"	SEE COMMENTS UNDER BIOTITE AGE. DREWES (USGS MAP I-1109) PUBLISHED AN AGE OF 27.9 M.Y. FOR THIS MUSCOVITE; DECAY CONSTANT SINCE REVISED.
4472	1	149	5	biotite	conventional K-Ar	24 USGS(D)-72D69	"4.962E-04, 0.581E-04, 1.1167E-04"	7.775	17.33	70			age of intrusion		"7.82%, 7.73% K2O"	DREWES AND COOPER (1973) PUBLISHED AN AGE OF 145 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4473	1	149	3	biotite	conventional K-Ar	25 USGS(D)-74D84	"4.962E-04, 0.581E-04, 1.1167E-04"	5.18	11.55	89			age of intrusion		"5.21%, 5.15% K2O"	DREWES (USGS MAP I-1109) PUBLISHED AN AGE OF 145 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4474	1	76.3	1.8	biotite	conventional K-Ar	26 USGS(D)-74D91	"4.962E-04, 0.581E-04, 1.1167E-04"	8.675	9.741	90			age of intrusion		"8.67%, 8.68% K2O"	DREWES (USGS MAP I-1109) PUBLISHED AN AGE OF 74.6 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4475	1	185	4	biotite	conventional K-Ar	27 USGS(D)-74D102	"4.962E-04, 0.581E-04, 1.1167E-04"	7.545	21.12	89			age of intrusion	SOME CHLORITE PRESENT	"7.52%, 7.57% K2O"	"THIS AGE IS IN AGREEMENT WITH THE 178 M.Y. AGE FOR THE GLEESON QUARTZ MONZONITE (ANDERSON, 1968). DREWES (USGS MAP I-1109) PUBLISHED AN AGE OF 181 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED."
4476	1	65.1	1.6	sanidine	conventional K-Ar	28 USGS(D)-74D143	"4.962E-04, 0.581E-04, 1.1167E-04"	9.2	8.779	96			age of intrusion		"9.21%, 9.19% K2O"	DREWES (USGS MAP I-1109) PUBLISHED AN AGE OF 63.6 M.Y. FOR THIS SANIDINE; DECAY CONSTANT SINCE REVISED.
4476	2	66.6	1.6	biotite	conventional K-Ar	28 USGS(D)-74D143	"4.962E-04, 0.581E-04, 1.1167E-04"	8.395	8.201	90			age of intrusion		"8.39%, 8.40% K2O"	DREWES (USGS MAP I-1109) PUBLISHED AN AGE OF 65.1 M.Y. FOR THIS BIOTITE; DECAY CONSTANT SINACE REVISED.
4477	1	34.5	1.5	hornblende	conventional K-Ar	29 USGS(D)-74D161	"4.962E-04, 0.581E-04, 1.1167E-04"	0.66	0.3308	54			age of volcanism	MINOR AMOUNT OF EPIDOTE (DEUTERIC?) PRESENT IN THE HORNBLENDE; EPIDOTE HAS 0.05% K2O	"0.66%, 0.66% K2O"	DREWES (USGS MAP I-1109) PUBLISHED AN AGE OF 33.7 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4478	1	34	0.8	biotite	conventional K-Ar	30 USGS(D)-74D151	"4.962E-04, 0.581E-04, 1.1167E-04"	8.32	4.114	58			age of intrusion		"8.32%, 8.32% K2O"	DREWES (USGS MAP I-1109) PUBLISHED AN AGE OF 33.2 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4479	1	1	0.1	plagioclase	conventional K-Ar	31 USGS(D)-72D6	"4.962E-04, 0.581E-04, 1.1167E-04"	2.095	0.0295	27			age of volcanism		"2.09%, 2.10% K2O"	
4480	1	9.9	0.5	whole rock	conventional K-Ar	32 USGS(D)-HLV-100	"4.962E-04, 0.581E-04, 1.1167E-04"	2.485	0.3549	59			age of intrusion			
4481	1	35.2	1.5	whole rock	conventional K-Ar	33 R-3502	"4.962E-04, 0.581E-04, 1.1167E-04"	3.249	1.663	22			age of volcanism	-40 +100 MESH	REPLICATE ANALYSES OF K AND AR	AGE FITS WELL WITH ESTABLISHED GEOCHRONOLOGIC FRAMEWORK OF THE THIRTY-NINE MILE VOLCANIC FIELD.
4482	1	36.3	0.9	biotite	conventional K-Ar	34 USGS(D)-A	"4.962E-04, 0.581E-04, 1.1167E-04"	8.81	4.655	94			age of volcanism		"8.81%, 8.81% K2O"	
4483	1	37	2	whole rock	conventional K-Ar	35	"4.962E-04, 0.581E-04, 1.1167E-04"	3.92	2.119	8080			age of intrusion		"3.915%, 3.915% K2O; 2.186 AND 2.053 E-10 MOL/GM AR-40"	OLSON AND DELLECHAIE (1976) PUBLISHED AN AGE OF 36 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4484	1	26.2	1	whole rock	conventional K-Ar	36	"4.962E-04, 0.581E-04, 1.1167E-04"	3.8	1.446	8340			minimum age of intrusion		"3.795%, 3.81% K2O; 1.410 AMD 1.481 E-10 MOL/GM AR-40"	OLSON AND DELLECHAIE (1976) PUBLISHED AN AGE OF 25.4 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4485	1	25	1	whole rock	conventional K-Ar	37	"4.962E-04, 0.581E-04, 1.1167E-04"	4.4	1.571	8386			age of intrusion		"4.40%, 4.40% K2O; 1.620 AND 1.522 E-10 MOL/GM AR-40"	OLSON AND DELLECHAIE (1976) PUBLISHED AN AGE OF 24 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4486	1	22	1	whole rock	conventional K-Ar	38	"4.962E-04, 0.581E-04, 1.1167E-04"	5.17	1.678	5861			age of volcanism		"5.18%, 5.16% K2O, 1.696 AND 1.660 E-10 MOL/GM AR-40"	AGE QUOTED BY OLSON AND DELLECHAIE (1976)
4487	1	175	6	plagioclase	conventional K-Ar	39 USGS(D)-PL4	"4.962E-04, 0.581E-04, 1.1167E-04"	3.55	9.386	92					"3.54%, 3.56% K2O"	THE PURCELL LAVA IS PRECAMBRIAN IN AGE; THE APPARENT JURASSIC AGE IS OBVIOUSLY IN ERROR.
4488	1	31.2	1.1	biotite	conventional K-Ar	55 USGS(D)-T-10	"4.962E-04, 0.581E-04, 1.1167E-04"	8.36	3.787	76			age of intrusion		"8.33%, 8.39% K2O"	FINNEL (1976) PUBLISHED AN AGE OF 30.5 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED
4489	1	31	1	biotite	conventional K-Ar	56 USGS(D)-T-44	"4.962E-04, 0.581E-04, 1.1167E-04"	7.83	3.523	54			age of volcanism		"7.83%, 7.83% K2O"	
4490	1	31.5	1	biotite	conventional K-Ar	57 USGS(D)-T-47	"4.962E-04, 0.581E-04, 1.1167E-04"	8.29	3.796	86			age of intrusion		"8.28%, 8.30% K2O"	FINNEL (1976) PUBLISHED AN AGE OF 30.8 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4491	1	26.4	0.9	sanidine	conventional K-Ar	58 USGS(D)-T-13	"4.962E-04, 0.581E-04, 1.1167E-04"	4.715	1.805	88			minimum age of volcanism		"4.72%, 4.71% K2O"	FINNELL (1976) PUBLISHED AN AGE OF 26.4 M.Y. FOR THIS SANIDINE; DECAY CONSTANT SINCE REVISED.
4491	2	30	1	biotite	conventional K-Ar	58 USGS(D)-T-13	"4.962E-04, 0.581E-04, 1.1167E-04"	6.32	2.747	71			age of volcanism		"6.30%, 6.34% K2O"	FINNELL (1976) PUBLISHED AN AGE OF 29.2 M.Y. FOR THIS BIOTITE; DECAY CONSTANT SINCE REVISED.
4492	1	31.9	1.1	biotite	conventional K-Ar	59 USGS(D)-T-35	"4.962E-04, 0.581E-04, 1.1167E-04"	8.14	3.771	74			age of volcanism		"8.11%, 8.17% K2O"	FINNELL (1976) PUBLISHED AN AGE OF 31.1 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4493	1	31.7	1.1	biotite	conventional K-Ar	60 USGS(D)-T-48	"4.962E-04, 0.581E-04, 1.1167E-04"	6.86	3.157	87			age of volcanism		"6.86%, 6.86% K2O"	FINNELL (1976) PUBLISHED AN AGE OF 30.9 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4494	1	32	0.9	biotite	conventional K-Ar	61 USGS(D)-MB-6-66	"4.962E-04, 0.581E-04, 1.1167E-04"	7.35	3.41	56			age of volcanism			"FINNELL (1976) PUBLISHED AN AGE OF 31.2 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED. ANALYTICAL DATA PUBLISHED BY DAMON AND OTHERS (1967, P. 63-69)."
4495	1	35.7	1.2	biotite	conventional K-Ar	62 USGS(D)-SL-57-73	"4.962E-04, 0.581E-04, 1.1167E-04"	7.535	3.908	84			age of intrusion		"7.58%, 7.49% K2O"	
4495	2	33.3	1.2	sanidine	conventional K-Ar	62 USGS(D)-SL-57-73	"4.962E-04, 0.581E-04, 1.1167E-04"	7.42	3.593	87			age of intrusion		"7.36%, 7.48% K2O"	
4495	3	34.7	0.8	sanidine	conventional K-Ar	62 USGS(D)-SL-57-73	"4.962E-04, 0.581E-04, 1.1167E-04"	7.42	3.746	93			age of intrusion		"7.36%, 7.48% K2O"	
4496	1	37.3	2.3	hornblende	conventional K-Ar	63 USGS(D)-SL-210-74	"4.962E-04, 0.581E-04, 1.1167E-04"	0.64	0.3473	53			age of volcanism	HORNBLENDE WITH A SURFACE FILM OF FERRIC OXIDE	"0.64%, 0.64% K2O"	HEDLUND (1976) PUBLISHED AN AGE OF 36.4 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4497	1	33.4	2.1	andesine	conventional K-Ar	64 USGS(D)-SL-39A-74	"4.962E-04, 0.581E-04, 1.1167E-04"	0.66	0.3199	69			maximum age of volcanism	RATHER ALTERED ANDESINE (AN 43-45)	"0.66%, 0.66% K2O"	AGE OF THE RUBIO PEAK FORMATION IS PROBABLY CLOSER TO 36-37 M.Y.. HEDLUND (1976) PUBLLISHED AN AGE OF 32.6 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4498	1	75.1	2.5	biotite	conventional K-Ar	65 USGS(D)-HL-24-72	"4.962E-04, 0.581E-04, 1.1167E-04"	7.365	8.131	92			minimum age of intrusion		"7.38%, 7.35% K2O"	POSSIBLE AGE OF MINERALIZATION. HEDLUND (1975) PUBLISHED AN AGE OF 73.4 M.Y. FOR THIS SAMPLE; DECAY CONSTANT SINCE REVISED.
4499	1	34.6	0.8	biotite	conventional K-Ar	66 USGS(D)-CB-268-B-75	"4.962E-04, 0.581E-04, 1.1167E-04"	7.965	4.001	79			age of volcanism		"7.94%, 7.99% K2O"	
4503	1	218	5	biotite	conventional K-Ar	70 USGS(D)-72FP69	"4.962E-04, 0.581E-04, 1.1167E-04"	7.73	25.77	96			minimum age of intrusion		"7.73%, 7.73% K2O"	
4504	1	30.4	1.2	biotite	conventional K-Ar	71 USGS(D)-N-R-S	"4.962E-04, 0.581E-04, 1.1167E-04"	8.32	3.678	81			age of volcanism			
4504	2	30.6	1.2	hornblende	conventional K-Ar	71 USGS(D)-N-R-S	"4.962E-04, 0.581E-04, 1.1167E-04"	0.995	0.4423	56			age of volcanism			
4505	1	28.7	1.1	biotite	conventional K-Ar	USGS(D)-O-R-S	"4.962E-04, 0.581E-04, 1.1167E-04"	7.82	3.259	57			age of volcanism			
4505	2	29.8	1.2	hornblende	conventional K-Ar	72 USGS(D)-O-R-S	"4.962E-04, 0.581E-04, 1.1167E-04"	0.85	0.3672	65			age of volcanism			
4506	1	27.2	1.1	hornblende	conventional K-Ar	73 USGS(D)-T-R-S	"4.962E-04, 0.581E-04, 1.1167E-04"	0.829	0.3267	48			age of volcanism			
4507	1	32	0.6	whole rock	conventional K-Ar	74 USGS(M)-RWT-59-72A	"4.962E-04, 0.581E-04, 1.1167E-04"	2.2485	1.0437	64			age of metamorphic crystallization	-100 MESH FRACTION	"2.250%, 2.247% K2O"	
4507	2	63.7	1.2	whole rock	conventional K-Ar	74 USGS(M)-RWT-59-72B	"4.962E-04, 0.581E-04, 1.1167E-04"	1.109	1.0358	42					"1.110%, 1.108% K2O"	AGE IS PRBABLY A COMBINATION OF PROVENANCE ROCK AGE AND METAMORPHIC AGE
4508	1	26.9	0.5	whole rock	conventional K-Ar	75 USGS(M)-OC-149BA	"4.962E-04, 0.581E-04, 1.1167E-04"	1.5285	0.5965	51			age of metamorphic crystallization	-60 +100 MESH FRACTION	"1.530%, 1.527% K2O"	CONSULT TABOR (1972) FOR MORE INFORMATION.
4508	2	30.1	0.6	whole rock	conventional K-Ar	75 USGS(M)-OC-149BB	"4.962E-04, 0.581E-04, 1.1167E-04"	1.336	0.5844	53			age of metamorphic crystallization		"1.337%, 1.335% K2O"	
4509	1	18.2	1.2	whole rock	conventional K-Ar	76 USGS(M)-RWT-70-72A	"4.962E-04, 0.581E-04, 1.1167E-04"	2.76	0.7269	65			age of metamorphic crystallization	-60 +100 MESH FRACTION		
4509	2	16.6	1.1	whole rock	conventional K-Ar	76 USGS(M)-RWT-70-72B	"4.962E-04, 0.581E-04, 1.1167E-04"	2.74	0.6564	63			age of metamorphic crystallization	-100 MESH FRACTION		
4510	1	18.7	1.3	whole rock	conventional K-Ar	77 USGS(M)-RWT-285-71A	"4.962E-04, 0.581E-04, 1.1167E-04"	3.33	0.9008	68			age of metamorphic crystallization	-100 MESH FRACTION		
4510	2	20.3	1.4	whole rock	conventional K-Ar	77 USGS(M)-RWT-285-71B	"4.962E-04, 0.581E-04, 1.1167E-04"	3.195	0.9397	76			age of metamorphic crystallization	-60 +100 MESH FRACTION		
4511	1	82.3	3.6	hornblende	conventional K-Ar	78 USGS(M)-RWT-151-76	"4.962E-04, 0.581E-04, 1.1167E-04"	0.303	0.3674	5256			age of intrusion	-150 +200 MESH FRACTION	"0.305%, 0.297%, 0.312%, AND 0.298% K2O; AR-40 = 0.3534 AND 0.3814 E-10 MOL/GM"	"THE FORTUNE CREEK STOCK IS PROBABLY CRETACEOUS IN AGE; IT INTRUDES THE INGALLS ULTRAMAFIC COMPLEX AND MAY BE A SATELLITE TO THE MT. STUART BATHOLITH SUGGESTING THAT THE BATHOLITH IS ALSO CRETACEOUS IN AGE. IT IS NOW CONSIDERED TO BE EOCENE IN AGE BASED ON A K-AR PLAGIOCLASE AGE OF 50 M.Y. (LAURSEN AND HAMMOND, 1974, P. 18)."
4512	1	42.5	2.6	hornblende	conventional K-Ar	79 USGS(M)-75-207	"4.962E-04, 0.581E-04, 1.1167E-04"	0.586	0.3629	205658			age of intrusion		"0.585%, 0.585%, 0.586%, AND 0.589% K2O; AR-40 = 0.3817, 0.3645, AND 0.3424 E-10 MOL/GM"	"DIKE INTRUDES SANDSTONES (SWANK GROUP) WHICH ARE ABOUT 44 M.Y. OLD BY THE FISSION-TRACK DATING METHOD (WHETTEN, 1976)."
4551	1	205.88	12	whole rock	conventional K-Ar	1-A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.93	2.92	71			age of volcanism		"0.78%, 0.77% K"	
4552	1	164.16	9	whole rock	conventional K-Ar	1-B	"4.72E-04, 0.584E-04, 1.19E-04*"	0.97	2.4	88					"0.82%, 0.79% K"	AGE IS TOO LOW
4553	1	203.19	12	whole rock	conventional K-Ar	1-C	"4.72E-04, 0.584E-04, 1.19E-04*"	0.83	2.57	62			age of volcanism		"0.68%, 0.70% K"	
4554	1	180.98	11	whole rock	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	0.54	1.48	32			minimum age of volcanism		"0.44%, 0.46% K"	
4555	1	198.92	12	whole rock	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	1.08	3.27	61			age of metamorphic crystallization		"0.89%, 0.90% K"	
4556	1	12.1		plagioclase	conventional K-Ar	KA 1292	"4.72E-04, 0.585E-04, 1.19E-04"	0.151		22			age of volcanism		"0.125% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4557	1	34		plagioclase	conventional K-Ar	KA 1204	"4.72E-04, 0.585E-04, 1.19E-04"	0.631		65			age of volcanism		"0.524% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4558	1	32		sanidine	conventional K-Ar	KA 1384	"4.72E-04, 0.585E-04, 1.19E-04"	7.645		82			age of volcanism		"6.344% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4559	1	31		plagioclase	conventional K-Ar	KA 1282	"4.72E-04, 0.585E-04, 1.19E-04"	0.245		57			age of volcanism		"0.203% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4560	1	4.3		plagioclase	conventional K-Ar	KA 1223	"4.72E-04, 0.585E-04, 1.19E-04"	0.222		58			age of volcanism		"0.184% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4560	2	5.3		plagioclase	conventional K-Ar	KA 1280	"4.72E-04, 0.585E-04, 1.19E-04"	0.245		11			age of volcanism		"0.203% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4561	1	16.7		plagioclase	conventional K-Ar	KA 1285	"4.72E-04, 0.585E-04, 1.19E-04"	0.258		27			age of volcanism		"0.214% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4562	1	19.9		sanidine	conventional K-Ar	KA-1168	"4.72E-04, 0.585E-04, 1.19E-04"	10.72		77			age of volcanism		"8.90% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4563	1	10		biotite	conventional K-Ar	KA 453	"4.72E-04, 0.585E-04, 1.19E-04"	7.9		29			age of volcanism		"6.56% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4564	1	12.6		biotite	conventional K-Ar	KA 1246	"4.72E-04, 0.585E-04, 1.19E-04"	8.44		77			age of volcanism		"7.006% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4564	2	13		plagioclase	conventional K-Ar	KA 1248	"4.72E-04, 0.585E-04, 1.19E-04"	0.899		67			age of volcanism		"0.746% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4565	1	32.3		plagioclase	conventional K-Ar	KA 1133	"4.72E-04, 0.585E-04, 1.19E-04"	0.486		68			age of volcanism		"0.403% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4566	1	3.2		whole rock	conventional K-Ar	KA 1013	"4.72E-04, 0.585E-04, 1.19E-04"	4.06		72			age of volcanism		"3.37% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4567	1	3.4		plagioclase	conventional K-Ar	KA 1281R	"4.72E-04, 0.585E-04, 1.19E-04"	0.462		24			age of volcanism		"0.383% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4568	1	33.2		biotite	conventional K-Ar	KA 837	"4.72E-04, 0.585E-04, 1.19E-04"	7.17		43			age of volcanism		"5.95% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4569	1	14.5		whole rock	conventional K-Ar	KA 1236	"4.72E-04, 0.585E-04, 1.19E-04"	1.399		49			age of volcanism	CRUSHED AND LEACHED IN HF	"1.161% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4570	1	12.1		whole rock	conventional K-Ar	KA 1240	"4.72E-04, 0.585E-04, 1.19E-04"	1.289		40			age of volcanism	CRUSHED AND LEACHED WITH HF	"1.070% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4571	1	21.3		whole rock	conventional K-Ar	KA 1230	"4.72E-04, 0.585E-04, 1.19E-04"	2.149		69			age of volcanism	CRUSHED AND LEACHED WITH HF; SLIGHT ALTERATION IN THE PLAGIOCLASES	"1.738% K, ARGON CONTENT AND ANALYTICAL ERROR ARE NOT GIVEN"	
4572	1	30.27	2.5	biotite	conventional K-Ar	63T1043	"4.72E-04, 0.585E-04, 1.19E-04*"	8.91	3.916	72			age of intrusion			"AGE LISTED AS 30 M.Y. BY SILBERMAN AND MCKEE (1971).  ANALYTICAL DATA RELEASED BY D.B. TATLOCK, USGS"
4573	1	38		Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
4574	1	190	6	hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given						minimum age of metamorphic crystallization	SYNKINEMATIC HORNBLENDE	NO ANALYTICAL DATA GIVEN	
4575	1	14.6	1.5	sanidine	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
4576	1	37	2	hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given						age not evaluated		NO ANALYTICAL DATA GIVEN	
4576	2	13	1	biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age not evaluated		NO ANALYTICAL DATA GIVEN	
4577	1	80	3	hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given						age not evaluated		NO ANALYTICAL DATA GIVEN	
4578	1	219	7	hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given						minimum age of metamorphic crystallization		NO ANALYTICAL DATA GIVEN	
4579	1	204.26	6	whole rock	conventional K-Ar	4(A)	"4.72E-04, 0.584E-04, 1.19E-04*"	0.44	1.37	73676254			age of intrusion		"0.37%, 0.35%, 0.37%, 0.36% K; 3.07 X E-6, 3.09 X E-6, 3.21 X E-6, 2.92 X E-6 RAD AR-40"	
4580	1	201.49	12	whole rock	conventional K-Ar	4(B)	"4.72E-04, 0.584E-04, 1.19E-04*"	0.58	1.78	60			age of intrusion		"0.49%, 0.47% K"	
4581	1	195.78	12	whole rock	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	0.44	1.31	54			minimum age of intrusion		"0.36%, 0.37% K"	
4582	1	203.29	12	whole rock	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	0.51	1.58	47			age of intrusion		"0.43%, 0.42% K"	
4583	1	184.34	10	whole rock	conventional K-Ar	7	"4.72E-04, 0.584E-04, 1.19E-04*"	2.09	5.84	92			minimum age of intrusion		"1.72%, 1.75% K"	
4584	1	155.28	9	whole rock	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.19E-04*"	2.57	6	67			minimum age of intrusion		"2.13%, 2.14% K"	AGE MAY BE TOO YOUNG
4585	1	197.2	12	whole rock	conventional K-Ar	9(A)	"4.72E-04, 0.584E-04, 1.19E-04*"	0.48	1.44	42			age of intrusion		"0.40%, 0.40% K"	
4586	1	198.49	12	whole rock	conventional K-Ar	9(B)	"4.72E-04, 0.584E-04, 1.19E-04*"	0.48	1.45	40			age of intrusion		"0.41%, 0.39% K"	
4587	1	228.78	10	whole rock	conventional K-Ar	10(A)	"4.72E-04, 0.584E-04, 1.19E-04*"	0.43	1.51	4352			age of intrusion		"0.35%, 0.37% K; 3.50XE-6, 3.28XE-6 STP CC RAD AR-40"	
4588	1	230.98	13	whole rock	conventional K-Ar	10(B)	"4.72E-04, 0.584E-04, 1.19E-04*"	0.42	1.49	31			age of intrusion		"0.35%, 0.35% K"	
4589	1	200.75	12	whole rock	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.19E-04*"	0.35	1.07	63			age of intrusion		"0.29%, 0.29% K"	
4590	1	210.12	12	whole rock	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	0.48	1.54	68			age of intrusion		"0.39%, 0.41% K"	
4591	1	218.3	9	whole rock	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	0.44	1.47	6658			age of intrusion		"0.37%, 0.36% K; 3.42XE-6, 3.16XE-6 STP CC RAD AR-40"	
4592	1	167.34	10	whole rock	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	0.265	0.669	1719			age not evaluated		"0.23%, 0.21% K; 1.46XE-6, 1.54XE-6 STP CC RAD AR-40"	
4593	1	196.66	2	biotite	conventional K-Ar	16	"4.72E-04, 0.584E-04, 1.19E-04*"	8.19	24.5	928195			age of intrusion		"6.82%, 6.81%, 6.72%, 6.86% K; 54.5XE-6, 54.9XE-6, 55.4XE-6 STP CC RAD AR-40"	
4594	1	232.62	10	whole rock	conventional K-Ar	17	"4.72E-04, 0.584E-04, 1.19E-04*"	0.47	1.68	5954			age of intrusion	1% CLAY AND CHLORITE	"0.40%, 0.38% K; 3.75XE-6, 3.76XE-6 STP CC RAD AR-40"	
4594	2	228.69	13	whole rock	conventional K-Ar	17	"4.72E-04, 0.584E-04, 1.19E-04*"	0.49	1.72	70			age of intrusion	1% CLAY AND CHLORITE	"0.41%, 0.41% K"	
4595	1	242.15	14	whole rock	conventional K-Ar	18	"4.72E-04, 0.584E-04, 1.19E-04*"	0.119	0.444	1816			age of intrusion		"0.099%, 0.099% K; 1.01XE-6, 0.98XE-6 STP CC RAD AR-40"	
4596	1	250.8	15	whole rock	conventional K-Ar	19	"4.72E-04, 0.584E-04, 1.19E-04*"	0.111	0.43	18			"sample contains excess radiogenic argon, age is too old"	"1% CLAY, CHLORITE"	"0.091%, 0.093% K"	DIKE CUTS TRIASSIC AGE ROCKS
4597	1	184.74	4	biotite	conventional K-Ar	YAG-979	"4.72E-04, 0.584E-04, 1.19E-04*"	2.96	8.29	878585			minimum age of intrusion	"40% CHLORITE, 4% QUARTZ, FLEDSPAR"	"2.46%, 2.45% K; 19.18XE-6, 18.35XE-6, 18.23XE-6 STP CC RAD AR-40"	
4597	2	205.81	8	hornblende	conventional K-Ar	YAG-979	"4.72E-04, 0.584E-04, 1.19E-04*"	0.31	0.973	5655			age of intrusion	"18% CHLORITE, 2% QUARTZ, FELDSPAR"	"0.258%, 0.257% K; 2.17XE-6, 2.19XE-6 STP CC RAD AR-40"	
4598	1	203.52	4	biotite	conventional K-Ar	YAG-984	"4.72E-04, 0.584E-04, 1.19E-04*"	3.54	10.98	74			age of intrusion	"35% CHLORITE, 10% HORNBLENDE"	"2.93%, 2.94% K"	"A BIOTITE K-AR DATE OF 216+/-5 M.Y. WAS DETERMINED FOR THIS PLUTON BY ISOTOPES INC. (C.W. FIELD, PERSONAL COMMUNICATION, 1967)"
4598	2	222.31	8	hornblende	conventional K-Ar	YAG-984	"4.72E-04, 0.584E-04, 1.19E-04*"	0.458	1.56	6361			age of intrusion	"3% CHLORITE, 1% BIOTITE"	"0.366%, 0.373%, 0.388% 0.393% K; 3.52XE-6, 3.46XE-6 STP CC RAD AR-40"	
4599	1	439	9	muscovite	39Ar-40Ar incremental (plateau)	LA-384A	"4.72E-04, 0.585E-04, 1.19E-04"						age of metamorphic crystallization	COARSE MUSCOVITE	40-39AR PLATEAU AGE	
4599	2	441	3.2	muscovite	40Ar/36Ar-40K/36Ar isochron	LA-384A	"4.72E-04, 0.585E-04, 1.19E-04"						age of metamorphic crystallization	COARSE MUSCOVITE	9-POINT ISOCHRON AGE ON 40-36AR VERSUS 39-36AR PLOT	
4599	3	358	4	muscovite	39Ar-40Ar incremental (plateau)	LA-384B	"4.72E-04, 0.585E-04, 1.19E-04"							RETROGRADE MUSCOVITE	40-39AR PLATEAU AGE; TOTAL FUSION AGE IS 354 M.Y.	AGE OF LATER METAMORPHISM
4599	4	371	5.5	muscovite	40Ar/36Ar-40K/36Ar isochron	LA-384B	"4.72E-04, 0.585E-04, 1.19E-04"							RETROGRADE MUSCOVITE	4-POINT ISOCHRON AGE ON 40-36AR VERSUS 39-36AR PLOT	AGE OF LATER METAMORPHISM
4600	1	457	26	hornblende	39Ar-40Ar total fusion	LA-385	"4.72E-04, 0.585E-04, 1.19E-04"			34			age of metamorphic crystallization		40-39AR TOTAL FUSION AGE	
4612	1	94.8	4.2	whole rock	conventional K-Ar	B-3	"4.72E-04, 0.585E-04, 1.19E-04"		0.8968	83						"THE BEST AGE FOR THIS BASALT IS 184 M.Y. (LAMPHERE, 1983)"
4613	1	98.66	2	phlogopite	conventional K-Ar	AK-1	"4.72E-04, 0.585E-04, 1.19E-04*"	5.74	8.38	89			age of intrusion			
4614	1	108.3	3	phlogopite	conventional K-Ar	AK-8	"4.72E-04, 0.585E-04, 1.19E-04*"	9.82	15.78	95			age of volcanism			
4615	1	378.86	14	riebeckite	conventional K-Ar	A-1089	"4.72E-04, 0.585E-04, 1.19E-04*"	1.641	9.96	72				"FRESH RIEBECKITE CONCENTRATE, -20+100 MESH; TRACES OF QUARTZ"	"1.351%, 1.373% K"	AVERAGED RIEBECKITE AGES IS 366 M.Y.
4616	1	383.38	14	riebeckite	conventional K-Ar	A-1090	"4.72E-04, 0.585E-04, 1.19E-04*"	1.696	10.43	79			maximum age of intrusion	"FRESH RIEBECKITE CONCENTRATE, -40+100 MESH; TRACES OF QUARTZ AND FELDSPAR"	"1.409%, 1.406% K"	
4617	1	359.61	11	riebeckite	conventional K-Ar	A-1091	"4.72E-04, 0.585E-04, 1.19E-04*"	1.419	8.13	7176				"FRESH RIEBECKITE CONCENTRATE, -40+200 MESH; 1% BIOTITE, 1% FELDSPAR"	"1.206%, 1.150% K; 0.0325 PPM, 0.0325 PPM RAD AR-40"	AVERAGED RIEBECKITE AGES IS 366 M.Y.
4618	1	315.8	10	biotite	conventional K-Ar	B-1092	"4.72E-04, 0.585E-04, 1.19E-04*"	6.396	31.78	80				"-40+100 MESH; SLIGHTLY CHLORITIZED BIOTITE, 1% QUARTZ AND 1% FELDSPAR"		AGE APPEARS TOO YOUNG
4619	1	370.65	15	riebeckite	conventional K-Ar	A-2009	"4.72E-04, 0.585E-04, 1.19E-04*"	1.58	9.36	76				"-60+200 MESH; 96% RIEBECKITE, 4% QUARTZ AND FELDSPAR"		AVERAGED RIEBECKITE AGES IS 366 M.Y.
4620	1	378.17	16	riebeckite	conventional K-Ar	A-2010	"4.72E-04, 0.585E-04, 1.19E-04*"	1.4	8.48	61				"-100+200 MESH; 95% RIEBECKITE, 5% QUARTZ AND FELDSPAR"		AVERAGED RIEBECKITE AGES IS 366 M.Y.
4621	1	234.83	11	whole rock	conventional K-Ar	B-3042	"4.72E-04, 0.585E-04, 1.19E-04*"	4.589	16.57	60				-80+200 MESH	"3.813%, 3.804% K"	APPROX. AGE OF 342 M.Y. OBTAINED WHEN CORRECTED FOR ASSUMED ARGON LOSS OF 35%
4622	1	260.59	14	biotite	conventional K-Ar	B-3043	"4.72E-04, 0.585E-04, 1.19E-04*"	1.187	4.791	35				-80+200 MESH; 99% PARTLY CHLORITIZED BIOTITE WITH TRACES OF QUARTZ AND FELDSPAR	"0.977%, 0.993% K"	AGE APPEARS TOO YOUNG
4623	1	350.61	14	riebeckite	conventional K-Ar	A-3044	"4.72E-04, 0.585E-04, 1.19E-04*"	0.733	4.084	4650				"-80+200 MESH; 98% PARTLY ALTERED RIEBECKITE, 2% QUARTZ AND FELDSPAR"	"0.609%, 0.607% K; 0.01644 PPM, 0.01621 PPM RAD AR-40"	AGE PROBABLY REDUCED BY ALTERATION
4624	1	241.01	12	riebeckite	conventional K-Ar	A-2031	"4.72E-04, 0.585E-04, 1.19E-04*"	0.563	2.09	53			initial age disturbed by later metamorphism	"-40+200 MESH; 95% RIEBECKITE, 5% AEGIRINE AND EPIDOTE, TRACE OF QUARTZ"		
4625	1	230.72	12	riebeckite	conventional K-Ar	A-2032	"4.72E-04, 0.585E-04, 1.19E-04*"	0.587	2.08	52			initial age disturbed by later metamorphism	"-40+200 MESH; 96% RIEBECKITE, 2% QUARTZ, 2% IRON OXIDES"		
4626	1	192.48	9	riebeckite	conventional K-Ar	A-2033	"4.72E-04, 0.585E-04, 1.19E-04*"	0.992	2.901	585854			initial age disturbed by later metamorphism	"-40+200 MESH; 98% RIEBECKITE, 2% QUARTZ AND FELDSPAR"	"0.01111 PPM, 0.01214 PPM, 0.01153 PPM RAD AR-40"	
4627	1	1024.5	50	aegerine (acmite)	conventional K-Ar	P-0066	"4.72E-04, 0.585E-04, 1.19E-04*"	0.07	1.39	30				AEGIRINE CONCENTRATE WITH TRACES OF FELDSPAR AND QUARTZ; -60+200 MESH	"0.058%, 0.059% K"	AGE IS TOO OLD
4629	1	300		biotite	conventional K-Ar	B3173	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40AR/40K = 0.0191	
4631	1	235		biotite	conventional K-Ar	B3177	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40AR/40K = 0.0147	
4633	1	232		biotite	conventional K-Ar	B3376A	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40AR/40K = 0.0144	
4634	1	193	6	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
4635	1	191	6	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
4667	1	467.76	9	whole rock	conventional K-Ar	28	"4.72E-04, 0.584E-04, 1.19E-04*"	4.07	31.29	98			age of metamorphic crystallization	-45+70 MESH		
4668	1	453.56	9	whole rock	conventional K-Ar	27	"4.72E-04, 0.584E-04, 1.19E-04*"	4.08	30.29	97			age of metamorphic crystallization	-45+70 MESH		
4669	1	426.89	8	whole rock	conventional K-Ar	16	"4.72E-04, 0.584E-04, 1.19E-04*"	3.94	27.32	95			age of later metamorphism	MESH SIZE -45+70		TIME OF INITIAL FORMATION OF THE SLATE APPROX. 450 M.Y.
4670	1	421.61	8	whole rock	conventional K-Ar	18	"4.72E-04, 0.584E-04, 1.19E-04*"	3.76	25.71	96			age of later metamorphism	MESH SIZE -45+70		TIME OF INITIAL FORMATION OF THE SLATE APPROX. 450 M.Y.
4671	1	394.09	8	whole rock	conventional K-Ar	24	"4.72E-04, 0.584E-04, 1.19E-04*"	2.58	16.36	94			age of later metamorphism	-45+70 MESH		TIME OF INITIAL FORMATION OF THE SLATE APPROX. 450 M.Y.
4672	1	381.36	8	whole rock	conventional K-Ar	25	"4.72E-04, 0.584E-04, 1.19E-04*"	4.83	29.53	94			age of later metamorphism	-45+70 MESH SIZE		TIME OF INITIAL FORMATION OF THE SLATE APPROX. 450 M.Y.
4673	1	445.79	9	muscovite	conventional K-Ar	48	"4.72E-04, 0.584E-04, 1.19E-04*"	9.98	72.66	97			age of uplift and cooling			
4674	1	430.06	8	muscovite	conventional K-Ar	52	"4.72E-04, 0.584E-04, 1.19E-04*"	9.86	68.94	98			age of uplift and cooling			
4675	1	413.79	8	muscovite	conventional K-Ar	44	"4.72E-04, 0.584E-04, 1.19E-04*"	9.37	62.74	98			age of uplift and cooling			
4676	1	411.54	8	muscovite	conventional K-Ar	41	"4.72E-04, 0.584E-04, 1.19E-04*"	9.6	63.89	98			age of uplift and cooling			
4677	1	401.55	8	muscovite	conventional K-Ar	45	"4.72E-04, 0.584E-04, 1.19E-04*"	9.77	63.26	98			age of uplift and cooling			
4678	1	399.48	8	muscovite	conventional K-Ar	38	"4.72E-04, 0.584E-04, 1.19E-04*"	9.39	60.45	98			age of uplift and cooling			
4679	1	397.74	8	muscovite	conventional K-Ar	42	"4.72E-04, 0.584E-04, 1.19E-04*"	8.98	57.53	99			age of uplift and cooling			
4679	2	380.17	7	biotite	conventional K-Ar	42	"4.72E-04, 0.584E-04, 1.19E-04*"	7.23	44.05	96			age of uplift and cooling			
4680	1	390.81	8	muscovite	conventional K-Ar	51	"4.72E-04, 0.584E-04, 1.19E-04*"	8.96	56.29	96			age of uplift and cooling			
4681	1	390.04	8	muscovite	conventional K-Ar	31	"4.72E-04, 0.584E-04, 1.19E-04*"	9.75	61.12	97			age of uplift and cooling			
4681	2	386.6	8	muscovite	conventional K-Ar	31	"4.72E-04, 0.584E-04, 1.19E-04*"	9.75	60.52	98			age of uplift and cooling			
4681	3	387.77	8	biotite	conventional K-Ar	31	"4.72E-04, 0.584E-04, 1.19E-04*"	8.59	53.5	97			age of uplift and cooling			
4682	1	386.81	8	muscovite	conventional K-Ar	46	"4.72E-04, 0.584E-04, 1.19E-04*"	10.1	62.73	98			age of uplift and cooling			
4683	1	867.79	17	biotite	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.19E-04*"	9.53	152.9	98			initial age disturbed by later metamorphism			PROBABLE LOSS OF RAD. AR DUE TO PALEOZOIC TECTOGENESIS
4684	1	615.52	12	biotite	conventional K-Ar	20	"4.72E-04, 0.584E-04, 1.19E-04*"	8.11	85.65	97			initial age disturbed by later metamorphism			PROBABLE LOSS OF RAD. AR DUE TO PALEOZOIC TECTOGENESIS
4685	1	368.63	7	whole rock	conventional K-Ar	54	"4.72E-04, 0.584E-04, 1.19E-04*"	2.06	12.13	95			"minimum age of metamorphic crystallization, age of uplift and cooling"	-45+70 MESH		
4686	1	358.4	7	whole rock	conventional K-Ar	35	"4.72E-04, 0.584E-04, 1.19E-04*"	4.35	24.83	98			"age of metamorphic crystallization, age of uplift and cooling"	-45+70 MESH		
4687	1	347.61	7	whole rock	conventional K-Ar	34	"4.72E-04, 0.584E-04, 1.19E-04*"	4.68	25.83	99			"age of metamorphic crystallization, age of uplift and cooling"	-45+70 MESH		
4688	1	343.93	7	whole rock	conventional K-Ar	33	"4.72E-04, 0.584E-04, 1.19E-04*"	4	21.82	97			"age of metamorphic crystallization, age of uplift and cooling"	-45+70 MESH		
4689	1	352.26	7	muscovite	conventional K-Ar	21	"4.72E-04, 0.584E-04, 1.19E-04*"	9.01	50.46	97			age of uplift and cooling			
4689	2	350.28	7	biotite	conventional K-Ar	21	"4.72E-04, 0.584E-04, 1.19E-04*"	7.83	43.58	96			age of uplift and cooling			
4690	1	348.6	7	biotite	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	8.65	47.89	96			age of uplift and cooling			
4690	2	340.46	7	muscovite	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	9.25	49.9	95			age of uplift and cooling			
4690	3	330.79	7	muscovite	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	9.25	48.35	97			age of uplift and cooling			
4691	1	354.37	7	muscovite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	9.21	51.92	95			age of uplift and cooling			
4691	2	323.93	6	biotite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	8.75	44.7	96			age of uplift and cooling			
4692	1	353.71	7	muscovite	conventional K-Ar	22	"4.72E-04, 0.584E-04, 1.19E-04*"	10.37	58.34	96			age of uplift and cooling			
4692	2	331.65	7	biotite	conventional K-Ar	22	"4.72E-04, 0.584E-04, 1.19E-04*"	9.39	49.22	96			age of uplift and cooling			
4693	1	93.7	5	biotite	conventional K-Ar	556B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.06	11.16	97			age of intrusion	MESH SIZE -10+20		
4694	1	92.25	5	biotite	conventional K-Ar	557B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.52	11.61	95			age of intrusion	MESH SIZE -40+80		
4695	1	90	4	biotite	conventional K-Ar	703B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.85	10.43	83			age of intrusion	MESH SIZE -80+120		
4696	1	89.14	4	biotite	conventional K-Ar	249B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.03	11.88	90			age of intrusion	MESH SIZE -20+40		"THIS AGE USED BY MISER AND MILTON, 1964, P. 16, FOR PUBLISHED AGE OF 89 M.Y. (AVERAGE OF 2 AGES)"
4697	1	93.93	5	biotite	conventional K-Ar	250B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.81	12.23	90			age of intrusion	MESH SIZE -20+40		"THIS AGE USED BY MISER AND MILTON, 1964, P. 16, FOR PUBLISHED AGE OF 89 M.Y. (AVERAGE OF 2 AGES)"
4698	1	97.48	5	biotite	conventional K-Ar	558B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.91	14.29	91			age of intrusion	MESH SIZE -10+20		
4699	1	99.77	5	biotite	conventional K-Ar	562B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.08	13.41	95			age of intrusion	MESH SIZE -40+80		
4700	1	385.05	19	biotite	conventional K-Ar	192B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.19	56.79	95			age of intrusion	MESH SIZE -10+20		
4701	1	396.51	19	biotite	conventional K-Ar	194B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.66	55.29	96			age of intrusion	MESH SIZE -10+20		
4702	1	265.52	13	biotite	conventional K-Ar	189B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.87	36.53	96			age of intrusion	MESH SIZE -10+20		
4702	2	287.98	14	hornblende	conventional K-Ar	189H	"4.72E-04, 0.585E-04, 1.19E-04*"	2.12	9.53	97			maximum age of intrusion	MESH SIZE -20+40		
4703	1	275.2	13	biotite	conventional K-Ar	238B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.71	37.28	97			age of intrusion	MESH SIZE -40+80		
4704	1	258.27	13	biotite	conventional K-Ar	197B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.7	34.78	94			age of intrusion	MESH SIZE -40+80		
4705	1	286.32	14	biotite	conventional K-Ar	555B(A)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.72	30.02	94			age of intrusion	MESH SIZE -10+20		
4705	2	276.21	14	biotite	conventional K-Ar	555B(B)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.35	22.99	89			age of intrusion	MESH SIZE -20+40		
4706	1	148.28	7	biotite	conventional K-Ar	563B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.6	16.91	91			age of intrusion	MESH SIZE -40+80		
4706	2	156.8	8	hornblende	conventional K-Ar	563H	"4.72E-04, 0.585E-04, 1.19E-04*"	2.26	5.33	95			age of intrusion	MESH SIZE -40+80		
4707	1	446.32	22	biotite	conventional K-Ar	260B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	64.3	98			age of intrusion	MESH SIZE -20+40		
4708	1	446.63	22	biotite	conventional K-Ar	261B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.19	67.05	98			age of intrusion	MESH SIZE -40+80		
4709	1	139.34	7	biotite	conventional K-Ar	514B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.94	16.56	92			age of intrusion	MESH SIZE -40+80		
4710	1	376.38	18	biotite	conventional K-Ar	259B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.84	59.29	97			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20; PROBABLY XENOCRYSTIC BIOTITE		
4710	2	416.12	20	biotite	conventional K-Ar	259B	"4.72E-04, 0.585E-04, 1.19E-04*"	9.84	66.303	86			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20; PROBABLY XENOCRYSTIC BIOTITE		
4711	1	448.07	22	biotite	conventional K-Ar	190B(A)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.02	66.05	95			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4712	1	503.69	25	biotite	conventional K-Ar	190B(B)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.05	84.07	94			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4713	1	429.09	21	biotite	conventional K-Ar	190B(C)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.65	67.3	96			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4713	2	427.67	21	biotite	conventional K-Ar	190B(C)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.65	67.05	96			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4714	1	148.48	7	biotite	conventional K-Ar	190B(D)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.32	16.31	96			"sample contains excess radiogenic argon, age is too old"	MESH SIZE (-80+120); BIOTITE MAY OR MAY NOT BE XENOCRYSTIC		
4715	1	378.62	19	biotite	conventional K-Ar	193B(A)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	52.04	93			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4715	2	265.13	13	biotite	conventional K-Ar	193B(A)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	35.28	96			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4715	3	261.57	13	biotite	conventional K-Ar	193B(A)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	34.77	91			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4716	1	340.67	17	biotite	conventional K-Ar	193B(B)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.64	52.04	96			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4716	2	312.05	15	biotite	conventional K-Ar	193B(B)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.64	47.28	95			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4716	3	327.14	16	biotite	conventional K-Ar	193B(B)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.64	49.78	93			"sample contains excess radiogenic argon, age is too old"	MESH SIZE -10+20		
4717	1	154.03	8	biotite	conventional K-Ar	193B(C)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.08	16.39	94			age of intrusion	MESH SIZE -80+120; BIOTITE IS PROBABLY NOT XENOCRYSTIC		
4831	1	174.86	4	biotite	conventional K-Ar	NH-74-30	"4.72E-04, 0.585E-04, 1.19E-04*"	8.82	23.315	9089			age of intrusion		REPLICATE AR ANALYSES	
4832	1	171.66	3	biotite	conventional K-Ar	QNH61-1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.9	17.89	86		Foland and others (1971)	age of intrusion			"REVISED DATA FROM FOLAND, QUINN, AND GILETTI (1971)"
4833	1	167.33	4	biotite	conventional K-Ar	NH-74-31	"4.72E-04, 0.585E-04, 1.19E-04*"	7.61	19.21	9192			age of intrusion		REPLICATE AR ANALYSES	
4834	1	185.6	4	biotite	conventional K-Ar	QNH61-2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.54	21.22	95		Foland and others (1971)	age of intrusion			"REVISED DATA FROM FOLAND, QUINN, AND GILETTI (1971)"
4835	1	192.48	5	amphiboles	conventional K-Ar	NH-75-45	"4.72E-04, 0.585E-04, 1.19E-04*"	3.11	9.095	8384			age of intrusion	AMPHIBOLE WITH 20% MICA	REPLICATE AR ANALYSES	
4836	1	198.11	4	biotite	conventional K-Ar	QNH61-3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.19	24.69	92		Foland and others (1971)	age of intrusion			"REVISED DATA FROM FOLAND, QUINN, AND GILETTI (1971)"
4837	1	174.33	4	biotite	conventional K-Ar	NH-75-41	"4.72E-04, 0.585E-04, 1.19E-04*"	9.33	24.585	6094			age of intrusion		REPLICATE AR ANALYSES	
4838	1	183.6	4	biotite	conventional K-Ar	NH-75-40	"4.72E-04, 0.585E-04, 1.19E-04*"	7.93	22.065	9290			age of intrusion		REPLICATE AR ANALYSES	
4839	1	179.09	5	biotite	conventional K-Ar	NH-74-21	"4.72E-04, 0.585E-04, 1.19E-04*"	6.22	16.86	91			age of intrusion			
4840	1	184.23	4	biotite	conventional K-Ar	QNH61-22	"4.72E-04, 0.585E-04, 1.19E-04*"	7.18	20.05	91		Foland and others (1971)	age of intrusion			"REVISED DATA FROM FOLAND, QUINN, AND GILETTI (1971)"
4841	1	114.99	3	biotite	conventional K-Ar	ME/F1-67	"4.72E-04, 0.585E-04, 1.19E-04*"	8.88	15.18	89			age of intrusion			
4842	1	110.93	2	biotite	conventional K-Ar	ME/KF2-67	"4.72E-04, 0.585E-04, 1.19E-04*"	8.39	13.82	8767			age of intrusion		REPLICATE AR ANALYSES	
4843	1	188.34	4	biotite	conventional K-Ar	NH-74-28	"4.72E-04, 0.585E-04, 1.19E-04*"	6.31	18.035	9184			age of intrusion		REPLICATE AR ANALYSES	
4844	1	112.28	3	biotite	conventional K-Ar	NH-75-2	"4.72E-04, 0.585E-04, 1.19E-04*"	5.84	9.74	72			age of intrusion			
4845	1	124.14	2	biotite	conventional K-Ar	BG-8-68	"4.72E-04, 0.585E-04, 1.19E-04*"	8.28	15.32	86		Foland and others (1971)	age of intrusion			"REVISED DATA FROM FOLAND, QUINN, AND GILETTI (1971)"
4846	1	197.92	4	biotite	conventional K-Ar	NH-74-9	"4.72E-04, 0.585E-04, 1.19E-04*"	9.4	28.31	9492			age of intrusion		REPLICATE AR ANALYSES	
4847	1	226	8	amphiboles	conventional K-Ar	ME/N1-67	"4.72E-04, 0.585E-04, 1.19E-04*"	0.301	1.045	76			age of intrusion		POTASSIUM DETERMINED BY ISOTOPE DILUTION; REPLICATE AR ANALYSES	
4848	1	120.17	2	biotite	conventional K-Ar	QNH61-16	"4.72E-04, 0.585E-04, 1.19E-04*"	8.15	14.58	727689		Foland and others (1971)	age of intrusion		TRIPLICATE AR ANALYSES	"REVISED DATA FROM FOLAND, QUINN, AND GILETTI (1971)"
4849	1	162.26	3	biotite	conventional K-Ar	QNH61-20	"4.72E-04, 0.585E-04, 1.19E-04*"	8.98	21.95	9493			age of intrusion		POTASSIUM DETERMINED BY ISOTOPE DILUTION; REPLICATE AR ANALYSES	
4850	1	160.58	3	biotite	conventional K-Ar	BG-7-68	"4.72E-04, 0.585E-04, 1.19E-04*"	7.8	18.86	86		Foland and others (1971)	age of intrusion			"REVISED DATA FROM FOLAND, QUINN, AND GILETTI (1971)"
4851	1	159.21	3	biotite		NH-75-1	"4.72E-04, 0.585E-04, 1.19E-04*"	5.35	12.82	74			age of intrusion			
4852	1	122.68	2	biotite	conventional K-Ar	ME 54	"4.72E-04, 0.585E-04, 1.19E-04*"	8.59	15.7	83			age of intrusion			
4853	1	123.22	2	biotite	conventional K-Ar	VT-33	"4.72E-04, 0.585E-04, 1.19E-04*"	8.78	16.12	9088			age of intrusion		REPLICATE AR ANALYSES	
4854	1	121.41	2	biotite	conventional K-Ar	VT-75-1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.25	16.725	7788			age of intrusion		REPLICATE AR ANALYSES	
4855	1	122.39	2	biotite	conventional K-Ar	QNH61-25	"4.72E-04, 0.585E-04, 1.19E-04*"	8.71	15.88	908589		Foland and others (1971)	age of intrusion		"REPLICATE K ANALYSES, TRIPLICATE AR ANALYSES"	"REVISED DATA FROM FOLAND, QUINN, AND GILETTI (1971)"
4856	1	123.11	4	biotite	conventional K-Ar	VT-32	"4.72E-04, 0.585E-04, 1.19E-04*"	6.7	12.29	7875			age of intrusion		REPLICATE AR ANALYSES	
4857	1	126.98	3	biotite	conventional K-Ar	VT-3	"4.72E-04, 0.585E-04, 1.19E-04*"	9.06	17.16	918981			age of intrusion		REPLICATE K ANALYSES; TRIPLICATE AR ANALYSES	INCLUSED REVISED DATA FROM FAUL AND OTHERS (1963)
4858	1	124.34	3	biotite	conventional K-Ar	VT-75-8	"4.72E-04, 0.585E-04, 1.19E-04*"	9.1	16.865	8792			age of intrusion		REPLICATE AR ANALYSES	
4859	1	127.67	3	biotite	conventional K-Ar	ME-74-4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.03	15.295	6079			age of intrusion		REPLICATE AR ANALYSES	
4860	1	124.57	2	biotite	conventional K-Ar	ME 55B	"4.72E-04, 0.585E-04, 1.19E-04*"	6.137	11.395	8990			age of intrusion		K CONTENT DETERMINED BY ISOTOPE DILUTION; REPLICATE AR ANALYSES	
4861	1	232.16	5	biotite	conventional K-Ar	BG-10-68	"4.72E-04, 0.585E-04, 1.19E-04*"	7.83	27.93	84		Foland and others (1971)	age of intrusion			"REVISED DATA FROM FOLAND, QUINN, AND GILETTI (1971)"
4862	1	118.41	2	biotite	conventional K-Ar	CNG-1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.61	15.17	83			age of intrusion		K CONTENT DETERMINED BY ISOTOPE DILUTION	
4863	1	114.07	3	biotite	conventional K-Ar	NH-74-2	"4.72E-04, 0.585E-04, 1.19E-04*"	5.48	9.29	82			age of intrusion			
4908	1	357	10	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
4968	1	79.23	1.9	muscovite	conventional K-Ar	DRS-122-67	"4.72E-04, 0.585E-04, 1.19E-04*"	10.9	12.71	88			age of intrusion		"10.89, 10.92%K2O"	
4969	1	78.4	2.2	muscovite	conventional K-Ar	M25-5	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		ANALYTICAL DATA NOT GIVEN	"THE AGE FOR THIS SAMPLE WAS REPORTED AS 78.2 +/- 1.6 M.Y. BY SILBERMAN AND MCKEE, 1971, ISOCHRON/WEST, NO.1, P.30; THEY PUBLISHED THE ANALYTICAL DATA"
4970	1	78	2.5	muscovite	conventional K-Ar	M25-5	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		ANALYTICAL DATA NOT GIVEN	"THE AGE FOR THIS SAMPLE WAS REPORTED AS 78.2 +/- 1.6 M.Y. BY SILBERMAN AND MCKEE, 1971, ISOCHRON/WEST, NO.1, P.30; THEY PUBLISHED THE ANALYTICAL DATA."
4971	1	18.2	1.5	whole rock	conventional K-Ar	(NOT GIVEN)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.082	0.2852	13			age of volcanism			"AN AGE OF 17.6 M.Y. WAS REPORTED FOR THIS SAMPLE BY YOUNG, BRENNAN, LUCCHITTA, AND MCKEE(1975)--AN ABSTRACT; AGE HAS BEEN RECALCULATED WITH REVISED DECAY CONSTANTS FOR K-40."
4972	1	24.7	3.5	whole rock	conventional K-Ar	(NOT GIVEN)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.488	0.1748	11			age of volcanism			
4973	1	1.7	0.8	feldspar	conventional K-Ar	BCB-NYM	"4.72E-04, 0.585E-04, 1.19E-04"	4.162	4.494	90			minimum age of intrusion		"(*),POTASSIUM VALUE IS AVERAGE OF 4 ANALYSES"	
4974	1	23.06	0.6	sanidine	conventional K-Ar	USGS(D)-DS445	"4.72E-04, 0.584E-04, 1.19E-04*"	8.29	2.77	87			age of volcanism			
4974	2	23.22	0.6	biotite	conventional K-Ar	USGS(D)-DS445	"4.72E-04, 0.584E-04, 1.19E-04*"	8.62	2.9	82			age of volcanism			
4975	1	23.29	0.6	sanidine	conventional K-Ar	USGS(D)-DS442	"4.72E-04, 0.584E-04, 1.19E-04*"	8.8	2.97	83			age of volcanism			
4975	2	23.44	0.6	biotite	conventional K-Ar	USGS(D)-DS442	"4.72E-04, 0.584E-04, 1.19E-04*"	8.36	2.84	66			age of volcanism			
4976	1	4.4	0.1	whole rock	conventional K-Ar	M-FRL1388	"4.72E-04, 0.585E-04, 1.19E-04*"	1.85	0.1175	5648			age of volcanism		0.1174E-10 AND 0.1175E-10 MOL/GR RADIOGENIC ARGON.	
4977	1	62.72	2	biotite	conventional K-Ar	USGS(M)-69AST137	"4.72E-04, 0.585E-04, 1.19E-04*"	9.2	8.453	36			minimum age of intrusion			
4977	2	68	2	hornblende	conventional K-Ar	USGS(M)-69AST137	"4.72E-04, 0.585E-04, 1.19E-04*"	0.835	0.8332	54			age of intrusion			
4978	1	146.2	4	hornblende	conventional K-Ar	USGS(M)-69AST252	"4.72E-04, 0.585E-04, 1.19E-04*"	1.055	2.313	88			age of intrusion			
4979	1	132.56	4	biotite	conventional K-Ar	USGS(M)-69AST252A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.62	17.07	93			minimum age of intrusion			
4980	1	58.61	2	biotite	conventional K-Ar	USGS(M)-69AST1556	"4.72E-04, 0.585E-04, 1.19E-04*"	8.93	7.659	73			minimum age of metamorphic crystallization			
4981	1	24.52	1.2	whole rock	conventional K-Ar	G-R1786/NMBM-M/46-1	"4.72E-04, 0.585E-04, 1.19E-04*"	4.294	1.526	5369			age of volcanism			
4982	1	15.49	0.6	sanidine	conventional K-Ar	G-F1244/NMBM-L3	"4.72E-04, 0.585E-04, 1.19E-04*"	10.691	2.394	2342						AGE IS QUESTIONABLE AND APPEARS TO BE TOO YOUNG.
4983	1	22.99	1	whole rock	conventional K-Ar	G-F1245/NMBM-L11	"4.72E-04, 0.585E-04, 1.19E-04*"	5.001	1.666	1921			minimum age of volcanism			
4984	1	23.22	0.9	sanidine	conventional K-Ar	G-F1461/NMBM-L26	"4.72E-04, 0.585E-04, 1.19E-04*"	8.032	2.702	4648			age of volcanism			
4985	1	12.02	0.6	feldspar	conventional K-Ar	G-F1334/NMBM-L19	"4.72E-04, 0.585E-04, 1.19E-04*"	8.386	1.456	4242			age of intrusion			
4986	1	37.89	1.2	hornblende	conventional K-Ar	G-A1369/NMBM-155A-V1	"4.72E-04, 0.585E-04, 1.19E-04*"	1.271	0.7006	5647			age of volcanism	98% PURE CONCENTRATE		
4987	1	16.33	1.5	whole rock	conventional K-Ar	G-R1251/NMBM-248D-V1	"4.72E-04, 0.585E-04, 1.19E-04*"	2.861	0.6755	2435			age of volcanism			
4988	1	29.15	1.6	biotite	conventional K-Ar	G-B1243/NMBM-318D-V1	"4.72E-04, 0.585E-04, 1.19E-04*"	2.508	1.061	2626			minimum age of volcanism	"20-30% BIOTITE, 70-80% FELDSPAR AND GROUNDMASS"		THE AGE IS QUESTIONABLE BECAUSE OF THE POOR CONCENTRATE OF BIOTITE
4989	1	32.76	1.3	whole rock	conventional K-Ar	G-R1242/NMBM-325D-70	"4.72E-04, 0.585E-04, 1.19E-04*"	5.078	2.417	5959			age of volcanism			
4990	1	35.38	1.2	biotite	conventional K-Ar	G-B1241/NMBM-325D-79B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.42	4.331	6262			age of intrusion	99% BIOTITE		
4991	1	30.6	2.8	biotite	conventional K-Ar	B/NMBM-247D-KA1	"4.83E-04, 0.585E-04"	8.15		5264			age of volcanism		AR-40/K-40=0.001791	AGE ALSO PUBLISHED BY WEBER AND BASSETT(1963)
4992	1	28	1.4	biotite	conventional K-Ar	B/NMBM-272C-KA1	"4.83E-04, 0.585E-04"	9.09		41			age of intrusion		AR-40/K-40=0.001636	AGE ALSO PUBLISHED BY WEBER AND BASSETT(1963)
4993	1	28.3	1.4	biotite	conventional K-Ar	B/NMBM-272C-KA2	"4.83E-04, 0.585E-04"	8.91		5146			age of intrusion		AR-40/K-40=0.001653	AGE ALSO PUBLISHED BY WEBER AND BASSETT(1963)
4994	1	14.3	1	whole rock	conventional K-Ar	B/NMBM-272C-KA3	"4.83E-04, 0.585E-04"	4.67		7464			age of volcanism		AR-40/K-40=0.0008344	AGE ALSO PUBLISHED BY WEBER AND BASSETT(1963).
4995	1	23.1		whole rock	conventional K-Ar	B/NMBM-294D-KA1	"4.83E-04, 0.585E-04"	4.55		41			age not evaluated		AR-40/K-40=0.001350	AGE ALSO PUBLISHED BY WEBER AND BASSETT(1963)
4995	2	42.6		whole rock	conventional K-Ar	B/NMBM-294D-KA1	"4.83E-04, 0.585E-04"	4.55		72			age not evaluated		AR-40/K-40= 0.002489	AGE ALSO PUBLISHED BY WEBER AND BASSETT(1963).
4996	1	28.3	1.8	glass	conventional K-Ar	B/NMBM-313A-KA1	"4.83E-04, 0.585E-04"	3.83		6464			age of volcanism		AR-40/K-40=0.00166	AGE ALSO PUBLISHED BY WEBER AND BASSETT(1963)
4997	1	27.2	1.8	glass	conventional K-Ar	B/NMBM-338A-KA1	"4.83E-04, 0.585E-04"	4.84		7979			age of volcanism		AR-40/K-40=0.001588	AGE ALSO PUBLISHED BY WEBER AND BASSETT (1963)
4998	1	18.6	0.9	glass		B/NMBM-361C-KA1	"4.83E-04, 0.585E-04"	4.97		60			age of volcanism			AGE ALSO PUBLISHED BY WEBER AND BASSETT(1963).
4999	1	23.7		glass	conventional K-Ar	B/WAB61-7-15-1-P	"4.83E-04, 0.585E-04"	5.01		46			age not evaluated		AR-40/K-40=0.001388	AGE ALSO PUBLISHED BY WEBER AND BASSETT (1963).
4999	2	33.2		glass	conventional K-Ar	B/WAB61-7-15-1-P	"4.83E-04, 0.585E-04"	5.01		60			minimum age of volcanism		AR-40/K-40=0.001939	AGE ALSO PUBLISHED BY WEBER AND BASSETT (1963)
5000	1	32.1		biotite	conventional K-Ar	SM-187/NMBM	"4.83E-04, 0.585E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	AGE ALSO PUBLISHED BY BURKE AND OTHERS (1963)
5001	1	10.7		whole rock	conventional K-Ar	SM-188/NMBM	"4.83E-04, 0.585E-04"						minimum age of volcanism		NO ANALYTICAL DATA GIVEN	BURKE AND OTHERS (1963) ALSO REPORTED THIS AGE
5002	1	33.6		biotite	conventional K-Ar	SM-190/NMBM-392-632	"4.83E-04, 0.585E-04"						minimum age of volcanism		NO ANALYTICAL DATA GIVEN	BURKE AND OTHERS(1963) ALSO PUBLISHED THIS AGE.
5003	1	32.4		biotite	conventional K-Ar	SM-191/NMBM-249C-SR1	"4.83E-04, 0.585E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	BURKE AND OTHERS (1963) ALSO REPORTED THIS AGE.
5004	1	37.1		biotite	conventional K-Ar	SM-1921/NMBM-249C-SR3	"4.83E-04, 0.585E-04"								NO ANALYTICAL DATA GIVEN	AGE OF VOLCANISM. BURKE AND OTHERS (1963) PUBLISHED THIS AGE AND A K-AR WHOLE ROCK AGE OF 31.9 M.Y. WHICH IS TOO YOUNG
5005	1	30.47	1	muscovite	conventional K-Ar	G-MO146/AM-X6650	"4.72E-04, 0.585E-04, 1.19E-04*"	5.43	2.402	5060			age of intrusion	"SEPARATE WAS 55% MUSCOVITE, 10% BIOTITE , 30% QUARTZ, 5% FELDSPAR, AND TRACE SULFIDES (-40+100 MESH)"		
5006	1	25.96	1.3	biotite	conventional K-Ar	G-BO147/AM-X6651	"4.72E-04, 0.585E-04, 1.19E-04*"	9.04	3.403	4345			minimum age of intrusion	95+% LIGHT BROWN BIOTITE (-40 + 100 MESH)		
5007	1	26.87	0.9	sericite	conventional K-Ar	G-MO216/AM-X6700	"4.72E-04, 0.585E-04, 1.19E-04*"	6.74	2.627	3142				"SEPERATE WAS 90% SERICITE, 5% PLAGIOCLASE, 5% QUARTZ, TRACE OF SULFIDES (-100 + 200 MESH)"		AGE OF ALTERATION-MINERALIZATION
5011	1	18.59	0.8	sanidine	conventional K-Ar	M75	"4.72E-04, 0.584E-04, 1.19E-04*"	7.35	1.977	76					7.38% AND 7.32% K2O	AGE OF VOLCANISM
5012	1	19.33	0.8	sanidine	conventional K-Ar	M74	"4.72E-04, 0.584E-04, 1.19E-04*"	5.65	1.581	81					5.62% AND 5.67% K2O	AGE OF VOLCANISM
5014	1	20.9	0.9	biotite	conventional K-Ar	M28	"4.72E-04, 0.584E-04, 1.19E-04"	4.82	1.806	77			age of intrusion		(*)	
5015	1	21.1	0.9	biotite	conventional K-Ar	M29	"4.72E-04, 0.584E-04, 1.19E-04"	7.1	2.678	60			age of intrusion		"(*),7.08% AND 7.12% K2O"	
5017	1	21.42	1	sanidine	conventional K-Ar	M49B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.34	1.967	83			age of intrusion		6.33% AND 6.35% K2O	
5017	2	21.9	0.9	sanidine	conventional K-Ar	M49B	"4.72E-04, 0.584E-04, 1.19E-04*"	9.625	3.053	90			age of intrusion		9.70% AND 9.55% K2O	
5017	3	21.65	1.1	biotite	conventional K-Ar	M49B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.945	2.805	62			age of intrusion		8.94% AND 8.95% K2O	
5018	1	28.88	1.4	Unk	conventional K-Ar	M83	"4.72E-04, 0.584E-04, 1.19E-04*"	8.075	3.385	68					8.04% AND 8.11% K2O	AGE IS APPARENTLY TOO OLD
5021	1	27.02	3.1	plagioclase	conventional K-Ar	M90	"4.72E-04, 0.584E-04, 1.19E-04*"	0.745	0.292	39					0.74% AND 0.75% K2O	MINIMUM AGE OF VOLCANISM
5022	2	28.2	1.5	plagioclase	conventional K-Ar	M9OB	"4.72E-04, 0.584E-04, 1.19E-04"	0.785	0.392	77					"(*),0.82% AND 0.75% K2O"	AGE APPEARS TO BE TOO OLD
5022	3	32.05	1.4	biotite	conventional K-Ar	M9O	"4.72E-04, 0.584E-04, 1.19E-04*"	5.46	2.542	83					5.47% AND 5.45% K2O	AGE APPEARS TO BE TOO OLD
5022	4	30.65	1.3	biotite	conventional K-Ar	M90B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.285	3.242	86					7.38% AND 7.19% K2O	AGE APPEARS TO BE TOO OLD.
5023	1	13.87	0.6	alunite	conventional K-Ar	M51A	"4.72E-04, 0.584E-04, 1.19E-04*"	6.73	1.349	66					6.73% AND 6.73% K2O	AGE OF HYDROTHERMAL ALTERATION AND/OR MINERALIZATION
5024	1	14.34	0.6	alunite	conventional K-Ar	M51	"4.72E-04, 0.584E-04, 1.19E-04*"	9.135	1.893	62					9.10% AND 9.17% K2O	AGE OF HYDROTHERMAL ALTERATION AND/OR MINERALIZATION.
5025	1	16.59	0.8	natroalunite	conventional K-Ar	M48	"4.72E-04, 0.584E-04, 1.19E-04*"	4.815	1.155	59					4.79% AND 4.84% K2O	AGE OF HYDROTHERMAL ALTERATION AND/OR MINERALIZATION.
5026	1	21.86	4.3	alunite	conventional K-Ar	M53	"4.72E-04, 0.584E-04, 1.19E-04*"	7.655	2.424	13					7.65% AND 7.66% K2O	AGE OF HYDROTHERMAL ALTERATION AND/OR MINERALIZATION.
5027	1	22.53	1	alunite	conventional K-Ar	M47B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.085	2.639	63					8.18% AND 7.99% K2O	AGE OF HYDROTHERMAL ALTERATION AND/OR MINERALIZATION.
5028	1	22.73	1.1	alunite	conventional K-Ar	M30	"4.72E-04, 0.584E-04, 1.19E-04*"	6.935	2.284	52					6.94% AND 6.93% K2O	AGE OF HYDROTHERMAL ALTERATION AND/OR MINERALIZATION
5029	1	9.44	0.5	alunite	conventional K-Ar	M256	"4.72E-04, 0.584E-04, 1.19E-04*"	9.055	1.234	49					9.00% AND 9.11% K2O	AGE OF HYDROTHERMAL ALTERATION AND/OR MINERALIZATION
5030	1	50.57	2.5	biotite	conventional K-Ar	KW-66-66	"4.72E-04, 0.585E-04, 1.19E-04*"	8.25	6.091	88			age of volcanism		8.19% AND 8.31% K2O	
5031	1	52.39	1.9	biotite	conventional K-Ar	KW-19-66	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	6.275	86			age of volcanism			
5031	2	51.56	3.8	plagioclase	conventional K-Ar	KW-19-66	"4.72E-04, 0.585E-04, 1.19E-04*"	0.525	0.3953	87			age of volcanism		0.53% AND 0.52% K2O	
5032	1	35.66	3	whole rock	conventional K-Ar	KW-911-67	"4.72E-04, 0.585E-04, 1.19E-04*"	1.43	0.7414	30			age of volcanism		"SAMPLE WAS NOT DEGASSED BY EXTERNAL HEATING OVERNIGHT (AS IS USUAL) BEFORE FUSION, THUS THE LOWER % RADIOGENIC ARGON; 1.48, 1.46, 1.41, AND 1.39% K2O"	
5033	1	33.35	1.4	whole rock	conventional K-Ar	KW-912-67	"4.72E-04, 0.585E-04, 1.19E-04*"	1.545	0.7487	86			age of volcanism		1.54% AND 1.55% K2O	
5034	1	31.02	1.6	whole rock	conventional K-Ar	KW-913-67	"4.72E-04, 0.585E-04, 1.19E-04*"	1.63	0.7343	58			age of volcanism		"1.68, 1.67, 1.64, 1.65, 1.62, 1.63, 1.63, 1.60, 1.59, AND 1.60% K2O"	"THIS FLOW MAY BE CONTEMPORARY WITH RENOVA FORMATION (KUENZI AND FIELDS, 1971:  PETKEWICH, 1978)"
5035	1	45.7	1.7	biotite	conventional K-Ar	KW-914-67	"4.72E-04, 0.585E-04, 1.19E-04*"	8.585	5.72	85			age of volcanism		8.60% AND 8.57% K2O	
5036	1	4.35	0.2	whole rock	conventional K-Ar	KW-2-72	"4.72E-04, 0.585E-04, 1.19E-04*"	1.71	0.1071	51			age of volcanism		1.71% AND 1.71% K2O	THIS K-AR AGE REPORTED BY PETERSON AND KUENZI (1974). SAMPLE KW-3-72 WHICH IS FROM THE SAME FLOW GAVE A 3.8 M.Y. AGE
5037	1	3.88	0.4	whole rock	conventional K-Ar	KW-3-72	"4.72E-04, 0.585E-04, 1.19E-04*"	1.55	0.0866	9			age of volcanism		1.55% AND 1.55% K2O	SAMPLE KW-2-72 GAVE AN AGE OF 4.2 M.Y.; IT IS FROM THE SAME BASALT FLOW
5038	1	23.3	1.2	whole rock	conventional K-Ar	KW-916-11-67	"4.72E-04, 0.585E-04, 1.19E-04*"	1.93	0.6517	86			age of volcanism		"1.93, 1.93, 1.90, 1.94% K2O"	
5038	2	25.21	1.5	whole rock	conventional K-Ar	KW-916-11-67	"4.72E-04, 0.585E-04, 1.19E-04*"	1.93	0.7055	50			age of volcanism		"1.93, 1.93, 1.90, AND 1.94% K2O; SAMPLE WAS NOT HEATED AT 100 DEGREES C FOR 14 HOURS PRECEDING FUSION, THUS RADIOGENIC ARGON IS LOWER"	
5040	1	246.03	7	biotite	conventional K-Ar	YU-1039	"4.72E-04, 0.584E-04, 1.19E-04*"	8.83	33.51	92			initial age disturbed by later metamorphism		7.31% AND 7.35% K	"ANALYTICAL DATA GIVEN IN ARMSTRONG, 1976, ISOCHRON/WEST"
5041	1	111.14	3	biotite	conventional K-Ar	YU-1038	"4.72E-04, 0.584E-04, 1.19E-04*"	8.84	14.59	83			initial age disturbed by later metamorphism		7.33% AND 7.32% K	"ANALYTICAL DATA GIVEN IN ARMSTRONG, 1976, ISOCHRON/WEST"
5042	1	551.85	16	biotite	conventional K-Ar	YU-1037	"4.72E-04, 0.584E-04, 1.19E-04*"	8.43	78.35	98			initial age disturbed by later metamorphism		7.06% AND 6.94% K	"ANALYTICAL DATA GIVEN IN ARMSTRONG, 1976, ISOCHRON/WEST"
5043	1	571.66	17	biotite	conventional K-Ar	YU-1036	"4.72E-04, 0.584E-04, 1.19E-04*"	9.1	88.12	98			initial age disturbed by later metamorphism		7.57% AND 7.53% K	"ANALYTICAL DATA GIVEN IN ARMSTRONG, 1976, ISOCHRON/WEST"
5044	1	72.63	2.4	biotite	conventional K-Ar	DR	"4.72E-04, 0.585E-04, 1.19E-04*"	8.9	9.496	95			minimum age of intrusion	VERY PURE CONCENTRATE	8.93% AND 8.87% K2O	BIOTITE AGE LESS THAN HORNBLENDE AGE PRESUMABLY DUE TO HEATING BY LATER INTRUSIVES
5044	2	78.76	2.2	hornblende	conventional K-Ar	DR	"4.72E-04, 0.585E-04, 1.19E-04*"	0.887	1.028	65			age of intrusion	VERY PURE CONCENTRATE	0.887% AND 0.887% K2O	
5044	3	78.23	2.1	hornblende	conventional K-Ar	DR	"4.72E-04, 0.585E-04, 1.19E-04*"	0.887	1.021	86			age of intrusion		0.887% AND 0.887% K2O	
5045	1	71.55	2.4	biotite	conventional K-Ar	BH 9850	"4.72E-04, 0.585E-04, 1.19E-04*"	9.41	9.888	90			age of intrusion	VERY PURE CONCENTRATE	9.40% AND 9.42% K2O	
5045	2	68.83	1.9	hornblende	conventional K-Ar	BH 9850	"4.72E-04, 0.585E-04, 1.19E-04*"	0.915	0.9243	81			age of intrusion	VERY PURE CONCENTRATE	0.915% AND 0.915% K2O	
5046	1	72.29	2.4	biotite	conventional K-Ar	BHS	"4.72E-04, 0.585E-04, 1.19E-04*"	9.31	9.886	90			age of intrusion	VERY PURE CONCENTRATE	9.30% AND 9.32% K2O	
5047	1	72.65	2.7	biotite	conventional K-Ar	IVP	"4.72E-04, 0.585E-04, 1.19E-04*"	9.1	9.712	94			age of intrusion	VERY PURE CONCENTRATE	9.12% AND 9.08% K20	
5047	2	69.59	1.9	hornblende	conventional K-Ar	IVP	"4.72E-04, 0.585E-04, 1.19E-04*"	0.627	0.6405	80			age of intrusion	VERY PURE CONCENTRATE	0.627% AND 0.627% K2O	
5048	1	70.44	2.3	biotite	conventional K-Ar	BC	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	9.049	93			age of intrusion	VERY PURE CONCENTRATE	8.77% AND 8.73% K2O	
5049	1	71.59	2.4	biotite	conventional K-Ar	287-1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.475	9.962	95			age of metamorphic crystallization	VERY PURE CONCENTRATE	9.45% AND 9.50% K20	AGE INDICATES TIME OF CONTACT METAMORPHISM
5050	1	72.18	2.4	biotite	conventional K-Ar	287-2	"4.72E-04, 0.585E-04, 1.19E-04*"	9.47	10.04	91			age of metamorphic crystallization	VERY PURE CONCENTRATE	9.43% AND 9.51% K2O	AGE INDICATES TIME OF CONTACT METAMORPHISM
5051	1	73.9	2.5	biotite	conventional K-Ar	USGS(D)MY-508	"4.962E-04, 0.581E-04, 1.1167E-04"	6.125	6.652	88			age of intrusion		6.12% AND 6.13% K2O	
5052	1	40	1.7	plagioclase	conventional K-Ar	CC-3	"4.72E-04, 0.585E-04, 1.19E-04*"	2.739	1.595	38			age of volcanism			
5053	1	37.98	1.5	sanidine	conventional K-Ar	MP-1	"4.72E-04, 0.585E-04, 1.19E-04*"	5.909	3.265	28			age of volcanism			
5054	1	36.82	1.4	sanidine	conventional K-Ar	LM-1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.378	5.022	42			age of volcanism			
5055	1	27.63	1.1	sanidine	conventional K-Ar	AVCM-1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.673	2.675	45			age of volcanism			
5056	1	20.15	0.8	sanidine	conventional K-Ar	AV-7	"4.72E-04, 0.585E-04, 1.19E-04*"	8.863	2.585	18			age of volcanism			THIS AGE MAY BE TOO YOUNG; VOLCANICS MAPPED AS OLIGOCENE-EOCENE
5057	1	2.06	0.1	sanidine	conventional K-Ar	FM-1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.047	0.2094	16			age of volcanism			
5058	1	1.98	0.1	sanidine	conventional K-Ar	WC-2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.298	0.2364	17			age of volcanism			
5059	1	29.91	10	whole rock	conventional K-Ar	VB-1	"4.72E-04, 0.585E-04, 1.19E-04*"	1.223	0.531	83			minimum age of volcanism			
5060	1	1.2	0.6	whole rock	conventional K-Ar	G-1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.393	0.0068	1						BASALT IS PALEOMAGNETICALLY NORMAL AND MAY BE 0.6:0.7 M.Y. OLD.
5076	1	60.1	1.4	illite	conventional K-Ar	C5-1	"4.76E-04, 0.589E-04, 1.18E-04*"	2.24	1.97	60				MINUS-TWO MICRON FRACTION CLAY MINERALS	LAMBDA-BETA=4.76E-10/YR; LAMBDA-EPSILON=0.589E-10/YR; 40K/K=0.000118 ATOMIC RATIO.	AGE IS TOO YOUNG; ATTEMPT TO DATE THE AGE OF SEDIMENTATION WAS UNSUCCESSFUL.
5077	1	46.5	1	illite	conventional K-Ar	FS-1	"4.76E-04, 0.589E-04, 1.18E-04*"	2.54	1.723	60				MINUS-TWO MICRON FRACTION CLAY MINERALS		AGE IS TOO YOUNG; ATTEMPT TO DATE THE AGE OF SEDIMENTATION WAS UNSUCCESSFUL
5078	1	104.7	2.5	illite	conventional K-Ar	AL-35-209	"4.76E-04, 0.589E-04, 1.18E-04*"	1	1.552	71				MINUS-TWO FRACTION OF CHLORITE-RICH AND 1MD ILLITE-RICH CLAY MINERALS		AGE TO YOUNG; ATTEMPT TO DATE THE AGE OF SEDIMENTATION WAS UNSUCCESSFUL.
5079	1	139.3	3	illite	conventional K-Ar	AL-35-306	"4.76E-04, 0.589E-04, 1.18E-04*"	1.3	2.711	79				MINUS-TWO MICRON FRACTION OF CHLORITE-RICH AND 1MD ILLITE-RICH CLAY MINERALS		MINIMUM AGE OF SEDIMENTATION
5080	1	141.8	2.9	whole rock	conventional K-Ar	AL-35-201	"4.76E-04, 0.589E-04, 1.18E-04*"	3.81	8.093	87				2 TO 62 MICRON FRACTION OF WHOLE-ROCK		MINIMUM AGE OF SEDUMENTATION.
5081	1	245.2	5.2	whole rock	conventional K-Ar	AL-35-205	"4.76E-04, 0.589E-04, 1.18E-04*"	1.72	6.503	81				2 TO 62 MICRON FRACTION OF WHOLE-ROCK		AGE TOO OLD; ATTEMPT TO DATE THE AGE OF SEDIMENTATION WAS UNSUCCESSFUL.
5082	1	68.7	1.5	whole rock	conventional K-Ar	AL-35-207	"4.76E-04, 0.589E-04, 1.18E-04*"	3.63	3.658	85				MINUS-TWO MICRON FRACTION OF WHOLE-ROCK		AGE TOO YOUNG; ATTEMPT TO DATE THE AGE OF SEDIMENTATION WAS UNSUCCESSFUL
5083	1	85.4	1.8	whole rock	conventional K-Ar	AL-35-305	"4.76E-04, 0.589E-04, 1.18E-04*"	3.22	4.056	90				MINUS-TWO MICRON FRACTION OF WHOLE-ROCK		AGE TOO YOUNG; ATTEMPT TO DATE THE AGE OF SEDIMENTATION WAS UNSUCCESSFUL.
5084	1	59.2	1.6	illite	conventional K-Ar	AL-23-303	"4.76E-04, 0.589E-04, 1.18E-04*"	1.3	1.126	46				MINUS-TWO MICRON FRACTION OF ILLITE-RICH AND CHLORITE-RICH CLAY MINERALS		AGE TOO YOUNG; ATTEMPT TO DATE THE AGE OF SEDIMENTATION WAS UNSUCCESSFUL.
5085	1	62.9	4.1	chlorite group	conventional K-Ar	AL-23-211	"4.76E-04, 0.589E-04, 1.18E-04*"	0.571	0.526	18				MINUS-TWO MICRON FRACTION OF CHLORITE-RICH CLAY MINERALS		AGE TOO YOUNG; ATTEMPT TO DATE THE AGE OF SEDIMENTATION WAS UNSUCCESSFUL.
5086	1	63.8	1.6	chlorite group	conventional K-Ar	AL-23-302	"4.76E-04, 0.589E-04, 1.18E-04*"	1.34	1.253	51				MINUS-TWO MICRON FRACTION OF CHLORITE-RICH CLAY MINERALS.		AGE TOO YOUNG; ATTEMPT TO DATE THE AGE OF SEDIMENTATION WAS UNSUCCESSFUL.
5087	1	16.5	0.2	whole rock	conventional K-Ar	CH-61	"4.962E-04, 0.581E-04, 1.1167E-04"	2.403	0.575	73			age of volcanism	MESH SIZE (60-100)		"PEACH SPRING TUFF HAS BEEN DATED AT 16.9 +/- 0.4 M.Y. (DAMON AND OTHERS, 1966, P. 28)"
5088	1	15.1	0.1	sanidine	conventional K-Ar	CHNE-152	"4.962E-04, 0.581E-04, 1.1167E-04"	10.18	2.226	46			age of intrusion			
5089	1	13.7	0.3	whole rock	conventional K-Ar	CH-26	"4.962E-04, 0.581E-04, 1.1167E-04"	2.32	0.4575	50			age of volcanism			
5090	1	13.1	0.2	whole rock	conventional K-Ar	CH-47	"4.962E-04, 0.581E-04, 1.1167E-04"	1.288	0.243	55			age of volcanism			
5091	1	13.1	0.1	sanidine	conventional K-Ar	CHNW-159	"4.962E-04, 0.581E-04, 1.1167E-04"	11.87	2.238	85			age of volcanism			
5092	1	13	0.5	whole rock	conventional K-Ar	CHSE-164	"4.962E-04, 0.581E-04, 1.1167E-04"	1.153	0.2158	33			age of volcanism			
5093	1	12.7	0.1	sanidine	conventional K-Ar	CHNW-156	"4.962E-04, 0.581E-04, 1.1167E-04"	12.1	2.214	72			age of intrusion			
5094	1	12.6	0.1	sanidine	conventional K-Ar	AP-04A	"4.962E-04, 0.581E-04, 1.1167E-04"	11.44	2.079	76			age of volcanism			
5095	1	12.4	0.1	whole rock	conventional K-Ar	CH-58B	"4.962E-04, 0.581E-04, 1.1167E-04"	1.849	0.3311	54			age of volcanism			
5096	1	12.4	0.2	sanidine	conventional K-Ar	CHNE-153	"4.962E-04, 0.581E-04, 1.1167E-04"	9.17	1.638	60			age of volcanism			
5097	1	12.4	0.1	sanidine	conventional K-Ar	CHNE-151	"4.962E-04, 0.581E-04, 1.1167E-04"	10.19	1.821	86			age of intrusion			
5098	1	11.7	0.2	biotite	conventional K-Ar	CHNW-155	"4.962E-04, 0.581E-04, 1.1167E-04"	9.89	1.67	54			age of volcanism			
5099	1	10.3	0.1	sanidine	conventional K-Ar	CHSW-158	"4.962E-04, 0.581E-04, 1.1167E-04"	6.52	0.9708	78			age of intrusion			
5100	1	9.2	0.2	whole rock	conventional K-Ar	CH-111	"4.962E-04, 0.581E-04, 1.1167E-04"	2.38	0.3151	40			age of volcanism			
5101	1	7.7	0.5	whole rock	conventional K-Ar	CHSE-166	"4.962E-04, 0.581E-04, 1.1167E-04"	0.698	0.0772	13			age of volcanism			
5102	1	7.5	0.2	whole rock	conventional K-Ar	CH-78	"4.962E-04, 0.581E-04, 1.1167E-04"	1.985	0.2157	51			age of volcanism			
5103	1	7.5	0.2	whole rock	conventional K-Ar	IL-CH-77-8	"4.962E-04, 0.581E-04, 1.1167E-04"	1.135	0.1225	40			age of volcanism			
5104	1	6.8	0.2	whole rock	conventional K-Ar	CH-92	"4.962E-04, 0.581E-04, 1.1167E-04"	1.592	0.1555	38			age of volcanism			
5105	1	1.46	0.03	sanidine	conventional K-Ar	77-G55	"4.962E-04, 0.581E-04, 1.1167E-04"	8.36	0.1762	25			age of volcanism	MESH SIZE (-50 + 150)		A K-AR ISOCHRON AGE OF 1.47 M.Y. ALSO OBTAINED.
5105	2	1.5	0.03	plagioclase	conventional K-Ar	77G55	"4.962E-04, 0.581E-04, 1.1167E-04"	1.98	0.0426	28			age of volcanism	MESH SIZE (-50+140)		A K-AR ISOCHRON AGE OF 1.47 M.Y. ALSO OBTAINED
5105	3	1.58	0.11	hornblende	conventional K-Ar	77G55	"4.962E-04, 0.581E-04, 1.1167E-04"	0.56	0.0128	6			age of volcanism	MESH SIZE (-50)		A K-AR ISOCHRON AGE OF 1.47 M.Y. ALSO OBTAINED
5105	4	1.47	0.04	Unk	40Ar/36Ar-40K/36Ar isochron	77G55	"4.962E-04, 0.581E-04, 1.1167E-04"						age of volcanism		"A 3-POINT ISOCHRON AGE DETERMINED BY PLOTTING DATA FOR SANIDINE, PLAGIOCLASE, AND HORNBLENDE ON A 40AR/36AR VERSUS 40K/36AR DIAGRAM."	
5107	1	51.79	2	biotite	conventional K-Ar	300-61B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.5	6.43	80			age of volcanism	FIELD SAMPLE 7S-111		
5108	1	49.83	2	biotite	conventional K-Ar	281B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.53	6.205	80			age of volcanism	FIELD SAMPLE S-1417		
5114	1	70.19	2.2	biotite	conventional K-Ar	G-B1654/H-LS8	"4.72E-04, 0.585E-04, 1.19E-04*"	7.309	7.531	6476			age of intrusion	80% BIOTITE 20% CHLORITE CONCENTRATE		
5115	1	69.09	22	biotite	conventional K-Ar	G-B1652/H-LS6	"4.72E-04, 0.585E-04, 1.19E-04*"	8.119	8.232	6970			age of intrusion	SEPARATE 95% PURE		
5116	1	69.28	2.2	biotite	conventional K-Ar	G-B1653/H-LS7	"4.72E-04, 0.585E-04, 1.19E-04*"	8.612	8.757	75			age of intrusion	SEPARATE 95% PURE		
5117	1	66.06	2.1	sericite	conventional K-Ar	G-M1655/H-LS7	"4.72E-04, 0.585E-04, 1.19E-04*"	8.601	8.3316	8688				"SEPARATE WAS 80% SERICITE, 10% QUARTZ, 10% FELDSPAR"		PROBABLE AGE OF SULPHIDE MINERALIZATION.
5118	1	33.77	2	plagioclase	conventional K-Ar	UP-G2	no decay constants given*	1.012	0.4966	79			age of volcanism			
5119	1	24.34	1.5	plagioclase	conventional K-Ar	UP-G3	no decay constants given*	0.524	0.1849	84			age of volcanism			
5120	1	0.94	0.2	whole rock	conventional K-Ar	UP-G4	no decay constants given*	1.1	0.0148	39			age of volcanism			
5121	1	20.45	1.5	whole rock	conventional K-Ar	UP-G5	no decay constants given*	2.73	0.8082	80			age of volcanism			
5122	1	25.9	1.8	sanidine	conventional K-Ar	UP-G6	no decay constants given*	6.72	2.5237	98			age of volcanism		AGE IS AVERAGE OF THREE ANALYSES	
5123	1	27.25	1.5	biotite	conventional K-Ar	UP-G7	no decay constants given*	7.64	3.0204	83			age of volcanism			
5123	2	26.39	1.5	sanidine	conventional K-Ar	UP-G7	no decay constants given*	5.41	2.0702	96			age of volcanism			
5124	1	26.88	1.5	biotite	conventional K-Ar	UP-M675	no decay constants given*	7.73	3.0134	83			age of volcanism			
5124	2	25.98	1.5	sanidine	conventional K-Ar	UP-M675	no decay constants given*	6.22	2.3429	96			age of volcanism			
5125	1	33.13	1.5	biotite	conventional K-Ar	UP-G9	no decay constants given*	8.6	4.1403	87			age of volcanism			
5127	1	61.8	1.4	biotite	conventional K-Ar	WEST CROSS CREEK-1 (D249B)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.48	7.668	95			age of intrusion		"8.45%, 8.51% K2O"	
5128	1	66.4	2.2	biotite	conventional K-Ar	WEST TENN-1 (D2568B)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.545	8.319	87			age of intrusion		"8.55%, 8.54% K2O"	
5130	1	62.2	1.5	biotite	conventional K-Ar	I-22	"4.962E-04, 0.581E-04, 1.1167E-04"	8.385	7.635	94			age of intrusion		"8.39%, 8.38% K2O"	
5133	1	72	1.7	biotite	conventional K-Ar	UTE-3 (D2548B)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.41	8.898	76			age of intrusion		"8.41%, 8.41% K2O"	
5135	1	67.8	1.6	biotite	conventional K-Ar	LA PLATA-3(D2541B)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.96	8.915	92			age of intrusion		"8.94%, 8.98% K2O"	
5137	1	67.5	1.6	biotite	conventional K-Ar	LA PLATA-5(D2542B)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.775	8.682	94			age of intrusion		"8.79%, 8.76% K2O"	
5138	1	110	2	pyroxenes	conventional K-Ar	RICO-1(D2573PY)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.117	0.1917	68					"0.118%, 0.116% K2O"	AGE TOO OLD; PROBABLY EXCESS ARGON
5142	1	34.2	0.8	biotite	conventional K-Ar	SOPRIS-1(D2552B)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.275	4.108	87			age of intrusion		"8.30%, 8.25% K2O"	
5144	1	13.9	0.3	biotite	conventional K-Ar	RND. MTN.-1(D2567B)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.64	1.736	62			age of intrusion		"8.66%, 8.62% K2O"	
5145	1	38.4	0.9	biotite	conventional K-Ar	PORP. CK.-1(D2569B)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.89	4.961	84			age of intrusion		"8.92%, 8.86% K2O"	
5152	1	58.8	2	biotite	conventional K-Ar	JS-1	"4.962E-04, 0.581E-04, 1.1167E-04"	8.595	7.39	88			age of intrusion		"8.55%, 8.64% K2O"	
5156	1	38.5	0.6	sanidine	conventional K-Ar	LEADVILLE-1	"4.962E-04, 0.581E-04, 1.1167E-04"	11.34	6.36	91			age not evaluated			
5158	1	0.51	0.03	whole rock	conventional K-Ar	1	"4.962E-04, 0.581E-04, 1.1167E-04"	1.166	0.0091	15			age of volcanism		"RADIOGENEC ARGON-40 VALUE IS AVERAGE OF 0.00925, 0.00894, AND 0.00923E-10 MOL/GM"	
5159	1	6.83	0.17	whole rock	conventional K-Ar	2	"4.962E-04, 0.581E-04, 1.1167E-04"	1.625	0.159	51			age of volcanism			
5160	1	22.72	0.52	whole rock	conventional K-Ar	3	"4.962E-04, 0.581E-04, 1.1167E-04"	4.193	1.387	61			age of intrusion			
5161	1	23	0.49	whole rock	conventional K-Ar	4	"4.962E-04, 0.581E-04, 1.1167E-04"	4.967	1.655	9696			minimum age of volcanism		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 1.663 AND 1.647E-10 MOL/GM	
5162	1	24.26	0.52	sanidine	conventional K-Ar	5	"4.962E-04, 0.581E-04, 1.1167E-04"	10.52	3.703	9898			age of volcanism		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 3.710 AND 3.695E-10 MOL/GM	
5163	1	27.03	0.59	feldspar	conventional K-Ar	6	"4.962E-04, 0.581E-04, 1.1167E-04"	3.23	1.266	7374			age of intrusion		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 1.262 AND 1.269E-10 MOL/GM	
5164	1	27.18	0.63	feldspar	conventional K-Ar	7	"4.962E-04, 0.581E-04, 1.1167E-04"	1.676	0.656	60			age of intrusion			
5165	1	27.21	0.58	biotite	conventional K-Ar	8	"4.962E-04, 0.581E-04, 1.1167E-04*"	4.008	1.582	68			age of intrusion		"RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 1.557, 1.574, 1.589, AND 160.9E-10 MOL/GM"	
5165	2			Unk			"4.962E-04, 0.581E-04, 1.1167E-04"							CHLORITIZED BIOTITE		
5166	1	49.43	0.73	whole rock	conventional K-Ar	9	"4.962E-04, 0.581E-04, 1.1167E-04"	2.79	1.178	3029			age of intrusion		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 1.208 AND 1.147E-10 MOL/GM	
5167	1	29.62	0.62	sanidine	conventional K-Ar	10	"4.962E-04, 0.581E-04, 1.1167E-04"	7.714	3.28	939294			age of volcanism		"RAIOGENIC ARGON-40 VALUE IS AVERAGE OF 3.285, 3.228, AND 3.333E-10 MOL/GM"	
5168	1	30.66	1.15	K feldspar	conventional K-Ar	11	"4.962E-04, 0.581E-04, 1.1167E-04"	11.55	5.142	3132			age meaning uncertain (geologic factors)		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 5.065 AND 5.219E-10 MOL/GM	
5169	1	30.69	0.66	anorthoclase	conventional K-Ar	12	"4.962E-04, 0.581E-04, 1.1167E-04"	2.89	1.288	9292			age of volcanism		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 1.286 AND 1.290E-10 MOL/GM	
5170	1	32.88	0.7	biotite	conventional K-Ar	13	"4.962E-04, 0.581E-04, 1.1167E-04"	8.49	4.052	92			age of volcanism			
5171	1	33.1	0.7	whole rock	conventional K-Ar	14	"4.962E-04, 0.581E-04, 1.1167E-04"	2.92	1.402	9291			age of volcanism		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 1.410 AND E-10 MOL/GM	A SPURIOUS AGE
5172	1	34.22	0.56	sanidine	conventional K-Ar	15	"4.962E-04, 0.581E-04, 1.1167E-04"	10.45	5.197	9295			age of volcanism		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 5.079 AND 5.315 E-10 MOL/GM	
5173	1	34.45	0.75	biotite	conventional K-Ar	16	"4.962E-04, 0.581E-04, 1.1167E-04"	7.608	3.808	8080			age of intrusion		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 3.824 AND 3.793 E-10 MOL/GM	
5174	1	34.83	0.78	biotite	conventional K-Ar	17	"4.962E-04, 0.581E-04, 1.1167E-04"	8.38	4.244	7676			age of intrusion		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 4.281 AND 4.206 E-10 MOL/GM	
5175	1	35.16	0.77	biotite	conventional K-Ar	18	"4.962E-04, 0.581E-04, 1.1167E-04"	8.029	4.103	81			age of volcanism		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 4.153 AND 4.053 E-10 MOL/GM	
5176	1	35.87	0.79	biotite	conventional K-Ar	19	"4.962E-04, 0.581E-04, 1.1167E-04"		4.338	7474			age of volcanism		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 4.332 AND 4.345 E-10 MOL/GM	
5177	1	36.64	0.8	biotite	conventional K-Ar	20	"4.962E-04, 0.581E-04, 1.1167E-04"	8.04	4.306	77			age of volcanism			
5178	1	36.82	0.81	biotite	conventional K-Ar	21	"4.962E-04, 0.581E-04, 1.1167E-04"	8.365	4.461				age of volcanism		"RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 4.520, 4.489, 4.462, 4.348, 4.462, AND 4.589E-10 MOL/GM"	
5179	1	56.52	1.2	biotite	conventional K-Ar	22	"4.962E-04, 0.581E-04, 1.1167E-04"	9.274	7.662	9293			age of intrusion		RADIOGENIC ARGON-40 VALUE IS AVERAGE OF 7.616 AND 7.707E-10 MOL/GM	
5180	1	32.2	0.3	whole rock	conventional K-Ar	77-O7B	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
5180	2	35.9	0.4	whole rock	conventional K-Ar	77-O7B	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
5181	1	45	1.4	whole rock	conventional K-Ar	77-37B	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
5181	2	41.4	1.3	whole rock	conventional K-Ar	77-37B	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
5182	1	28.18	0.9	stilpnomelane	conventional K-Ar	ME-20/DKA-2410	"4.72E-04, 0.584E-04, 1.19E-04*"	1.34	0.548	54				CONCENTRATE 98% PURE; FUSED AT TEMPERATURE SUITABLE FOR FUSING BIOTITE		AGE IS SPURIOUS; FERROSTILPNOMELANE APPARENTLY IS UNSUITABLE FOR RELIABLE K-AR DATING
5182	2	25.07	0.9	stilpnomelane	conventional K-Ar	ME-20/DKA2473	"4.72E-04, 0.584E-04, 1.19E-04*"	1.34	0.487	54				CONCENTRATE 98% PURE; FUSED AT TENPERATURE SUITABLE FOR FUSING MUSCOVITE	FERROSTILPNOMELANE ARPARENTLY UNSUTABLE FOR RELIABLE K-AR DATING	AGE IS SPURIOUS; FERROSTILPNOMELANE IS APPARENTLY UNSUITABLE FOR RELIABLE K-AR DATING
5183	1	355.39	20	whole rock	conventional K-Ar	1(C-122)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.354	2.002	19						"AGE IS A MINIMUM AGE AND IS NOT THE AGE OF INTRUSION. THIS DIKE IS PART OF ""DIKE-SET-I"" OF WINGARD AND BROOKINS, 1964, AGE OF BASIC DIKES ON THE CASTINE-BLUE HILL PENINSULA, MAINE:  GEOL. SOC. AMERICA SPEC. PAPER 82, P. 226"
5184	1	164	6	whole rock	conventional K-Ar	2(133)	"4.72E-04, 0.585E-04, 1.19E-04"	2.79		75			minimum age of intrusion		ARGON CONTENT NOT GIVEN	"THIS DIKE BELONGS TO ""DIKE-SET-IV"" OF WINGARD AND BROOKINS, 1964, AGE OF BASIC DIKES ON THE CASTINE-BLUE HILL PENINSULA, MAINE:  GEOL. SOC. AMERICA SPEC. PAPER 82, P. 226"
5185	1	478.68	50	whole rock	conventional K-Ar	3(C-95)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.26	2.052	10						"AGE IS TOO OLD. THIS DIKE IS PART OF ""DIKE-SET-I"" OF WINGARD AND BROOKINS, 1964, AGE OF BASIC DIKES ON THE CASTINE-BLUE HILL PENINSULA, MAINE:"
5186	1	182.13	8	whole rock	conventional K-Ar	4(C-120)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.66	4.58	36			minimum age of intrusion			"THIS DIKE IS PART OF ""DIKE-SET-IV"" OF WINGARD AND BROOKINS, 1964, AGE OF BASIC DIKES ON THE CASTINE-BLUE HILL PENINSULA, MAINE:  GEOL. SOC. AMERICA SPEC. PAPER 82, P. 226"
5187	1	356.6	15	whole rock	conventional K-Ar	5(C-559)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.428	8.106	15			minimum age of intrusion			THE PENOBSCOT DIORITE INTRUDES THE SOUTH PENOBSCOT GRANITE
5188	1	286.52	15	whole rock	conventional K-Ar	6(C-337)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.36	6.08	28						AGE APPEARS TOO LOW FOR REASONS UNKNOWN
5189	1	351.19	12	biotite	conventional K-Ar	7(C-1256)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.89	44.04	88		Brookins and Spooner (1970); Faul and others (1963)	minimum age of intrusion			PREVIOUS AGES FOR OAK POINT GRANITE REPORTED BY FAUL AND OTHERS (1963) AND BROOKINS AND SPOONER (1970)
5189	2	271.69	15	K feldspar	conventional K-Ar	8(C-125F)	"4.72E-04, 0.585E-04, 1.19E-04*"	11.38	48.04	81				K-FELDSPAR CONCENTRATE CONSISTS OF MICROCLINE AND PERTHITE--SLIGHT ALTERATION TO KAOLIN NOTED		"AGE SEEMS TOO LOW, PROBABLY DUE TO DIFFUSION OF 40AR FROM THE CRYSTAL"
5190	1	422.07	15	biotite	conventional K-Ar	9(771)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.93	54.29	92			age of intrusion	CONCENTRATE 97% BIOTITE		
5191	1	377.21	10	biotite	conventional K-Ar	10(287)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.71	40.53	92			initial age disturbed by later metamorphism			"PRESUMABLY CONTACT METAMORPHOSED BY SOUTH PENOBSCOT GRANITE (WINGARD, 1961)"
5192	1	366.71	15	biotite	conventional K-Ar	11(552)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.35	43.03	46			minimum age of intrusion	CONCENTRATIE 98% BIOTITE		"AGE MAY HAVE BEEN REDUCED BY DIORITE INTRUSIVE (WINGARD, 1961)"
5193	1	402.81	25	whole rock	conventional K-Ar	12(602)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.23	14.49	83			age of volcanism			BROOKINS AND OTHER (1973) REPORTED AN AGE OF 390 +/- 5 M.Y. FOR THE CASTINE VOLCANICS
5194	1	211.63	6	whole rock	conventional K-Ar	13(C-254)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.42	27.22	72						AGE APPEARS TOO YOUNG
5195	1	266.28	12	whole rock	conventional K-Ar	14(290)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.58	18.92	77						AUTHOR THINKS THE AGE IS TOO YOUNG AS FELSITE DIKE RESEMBLES CASTINE-VOLCANICS WHICH ARE DEVONIAN IN AGE
5196	1	161.96	1.6	illite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.51	18.321	91				THE LESS-THAN-2-MU FRACTION CONTAINED 1MD ILLITE WITH MINOR CHLORITE AND QUARTZ	6.24% AND 6.23% K	AVERAGE AGE OF 3 AGES IS 156.9 +/- 2.6 M.Y. WHICH MAY BE THE AGE OF THE FAULTING
5196	2	159.57	1.6	illite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.51	18.039	90				THE LESS-THAN-2-MU FRACTION CANTAINED 1MD ILLITE WITH MINOR CHLORITE AND QUARTZ	6.24% AND 6.23% K	THE AVERAGE AGE OF 3 AGES IS 156.9 +/- 2.6  M.Y. WHICH MAY BE THE AGE OF THE FAULTING
5196	3	158.83	1.5	illite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.51	17.951	98				THE LESS-THAN-2-MU FRACTION CONTAINED 1MD ILLITE WITH MINOR CHLORITE AND QUARTZ	6.23% AND 6.24%K	THE AVERAGE AGE OF 3 AGES IS 156.9 +/- 2.6 M.Y. WHICH MAY BE THE AGE OF THE FAULTING
5197	1	164.31		montmorillonite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	6.57	16.272	95				"THE LESS-THAN-2-MU FRACTION CONTAINS MONTMORILLONITE, QUARTZ; AND A TRACE OF KAOLINITE"	5.47% AND 5.43% K	AVERAGE AGE OF 159.9 +/- 3.2 M.Y. MAY BE THE AGE OF FAULTING
5197	2	161.71		montmorillonite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	6.57	16.002	95				"THE LESS-THAN-2-MU FRACTION CONTAINED MONTMORILLONITE, QUARTZ, AND A TRACE OF KAOLINITE"	5.47%AND 5.43% K	AVERAGE AGE OF 159.9 +/- 3.2 M.Y. MAY BE THE AGE OF FAULTING
5198	1	166.28		clay minerals	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	5.75	14.419	81				THE LESS-THAN-2-MU FRACTION CONTAINED A MIXTURE OF MONTMORILLONITE AND ILLITE WITH MINOR QUARTZ AND A TRACE OF KAOLINITE	4.74% AND 4.79% K	AVERAGE AGE OF 164.1 +/- 3.3 M.Y. MAY BE THE AGE OF FAULTING
5198	2	167.93		clay minerals	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	5.75	14.569	84				THE LESS-THAN-2-MU FRACTION CONTAINED A MIXTURE OF MONTMORILLONITE AND ILLITE WITH MINOR QUARTZ AND A TRACE OF KAOLINITE	4.74% AND 4.79% K	AVERAGE AGE OF 164.1 +/- 3.3 M.Y. MAY BE THE AGE OF FAULTING
5224	1	14.3	0.8	sanidine	conventional K-Ar	7I242	"4.962E-04, 0.581E-04, 1.1167E-04"	6.59	1.3584	21			age of intrusion			"ANALYTICAL DATA RELEASED BY E.H. MCKEE, USGS, MENLO PARK, CALIF."
5225	1	15.1	1.6	whole rock	conventional K-Ar	6I649	"4.962E-04, 0.581E-04, 1.1167E-04"	0.884	0.1937	17			age of volcanism	CRUSHED ANDESITE		"ANALYTICAL DATA RELEASED BY E.H. MCKEE, USGS, MENLO PARK, CALIF."
5226	1	6.3	2.3	whole rock	conventional K-Ar	7I272	"4.962E-04, 0.581E-04, 1.1167E-04"	0.235	0.0215	4			age of volcanism	CRUSHED BASALT		"ANALYTICAL DATA RELEASED BY E.H. MCKEE, USGS, MENLO PARK, CALIF."
5243	1	360	18	common micas	conventional K-Ar	2	"4.83E-04, 0.585E-04"						initial age disturbed by later metamorphism	BIOTITE-MUSCOVITE MIXTURE	NO ANALYTICAL DATA GIVEN	
5244	1	285	14	orthoclase	conventional K-Ar	3	"4.83E-04, 0.585E-04"						age not evaluated		NO ANALYTICAL DATA GIVEN	
5245	1	325	16	whole rock	conventional K-Ar	6	"4.83E-04, 0.585E-04"						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	
5246	1	330	16	whole rock	conventional K-Ar	7	"4.83E-04, 0.585E-04"						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	
5247	1	305	15	whole rock	conventional K-Ar	8	"4.83E-04, 0.585E-04"						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	
5248	1	320	16	whole rock	conventional K-Ar	9	"4.83E-04, 0.585E-04"						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	
5249	1	330	16	muscovite	conventional K-Ar	13	"4.83E-04, 0.585E-04"								NO ANALYTICAL DATA GIVEN	PROBABLE AGE OF THE LAST THERMAL EVENT IN THIS REGION
5250	1	355	17	common micas	conventional K-Ar	14	"4.83E-04, 0.585E-04"							MUSCOVITE-BIOTITE MIXTURE	NO ANALYTICAL DATA GIVEN	AGE REFLECTS THE EFFECTS OF A REGIONAL THERMAL EVENT ABOUT 330 M.Y. AGO
5251	1	360	18	muscovite	conventional K-Ar	15	"4.83E-04, 0.585E-04"								NO ANALYTICAL DATA GIVEN	AGE REFLECTS THE EFFECTS OF A REGIONAL THERMAL EVENT ABOUT 330 M.Y. AGO
5252	1	395	20	muscovite	conventional K-Ar	16	"4.83E-04, 0.585E-04"						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	
5253	1	460	24	biotite	conventional K-Ar	16	"4.83E-04, 0.585E-04"						age of metamorphic crystallization		NO ANALYTICAL DATA GIVEN	
5254	1	330	16	biotite	conventional K-Ar	17	"4.83E-04, 0.585E-04"								NO ANALYTICAL DATA GIVEN	AGE REFLECTS THE EFFECTS OF A REGIONAL THERMAL EVENT ABOUT THIS TIME
5255	1	213		K feldspar	conventional K-Ar	1	"4.962E-04, 0.581E-04, 1.1167E-04"	12.66	41.143	96			age meaning uncertain (geologic factors)		AGE RECALCULATED WITH IUGS RECOMMENDED DECAY CONSTANTS	
5264	1	322.15	6	whole rock	conventional K-Ar	ALV-421-1-3-A	"4.72E-04, 0.585E-04, 1.19E-04*"	3.98	20.21	9595			initial age disturbed by later metamorphism		K=3.31 AND 3.29%; 40AR(RAD)=4.52 AND 4.53 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	THE CONCORDIA INTERCEPT AGE OF 422 M.Y. AS REPORTED BY HERMES AND OTHERS (1978) MAY APPLY TO THIS GRANITE
5265	1	275.96	16	whole rock	conventional K-Ar	ALV-423-1-1-A	"4.72E-04, 0.585E-04, 1.19E-04*"	3.96	17	9294			initial age disturbed by later metamorphism		K=3.35 AND 3.24%; 40AR(RAD)=4.06 AND 3.56 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	THE CONCORDIA INTERCEPT AGE OF 422 M.Y. AS REPORTED BY HERMES AND OTHERS (1978) MAY APPLY TO THIS GRANITE
5266	1	338.85	20	whole rock	conventional K-Ar	ALV-427-1-1-A	"4.72E-04, 0.585E-04, 1.19E-04*"	0.3	1.61	6967			minimum age of intrusion		K=0.25 AND 0.25%; 40AR(RAD)=0.36 AND 0.36 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	
5267	1	254.9	15	whole rock	conventional K-Ar	ALV-342-2-2-A	"4.72E-04, 0.585E-04, 1.19E-04*"	3.95	15.57	9191			minimum age of volcanism		K=3.27 AND 3.29%; 40AR(RAD)=3.43 AND 3.54 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	
5268	1	280.35	14	whole rock	conventional K-Ar	ALV-430-2-1-A	"4.72E-04, 0.585E-04, 1.19E-04*"	5.1	22.27	9193			initial age disturbed by later metamorphism		K=4.20 AND 4.25%; 40AR(RAD)=4.95 AND 5.03 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	THE CONCORDIA INTERCEPT AGE OF 422 M.Y. AS REPORTED BY HERMES AND OTHERS (1978) MAY APPLY TO THIS GRANITE
5269	1	415.99	20	biotite	conventional K-Ar	ALV-429-1-1-B+A	"4.72E-04, 0.585E-04, 1.19E-04*"	3.67	24.72	9597			minimum age of intrusion	ALTERED BIOTITE	K=3.05 AND 3.05%; 40AR(RAD)=5.45 AND 5.62 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	HERMES AND OTHERS (1978) REPORTED A CONCORDIA INTERCEPT AGE OF 422 M.Y. FOR THIS SAMPLE
5270	1	313.18	9	whole rock	conventional K-Ar	ALV-445-1-7	"4.72E-04, 0.585E-04, 1.19E-04*"	4.73	23.29	9595			initial age disturbed by later metamorphism		K=4.02 AND 3.84%; 40AR(RAD)=5.30 AND 5.15 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	HERMES AND OTHERS (1978) REPORTED A CONCORDIA INTERCEPT AGE OF 422 M.Y. FOR THIS SAMPLE
5270	2	350.38	10	biotite	conventional K-Ar	ALV-445-1-7	"4.72E-04, 0.585E-04, 1.19E-04*"	2.22	12.36	9292			initial age disturbed by later metamorphism	IMPURE BIOTITE	K=1.81 AND 1.88%; 40AR(RAD)=2.74 AND 2.81 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	HERMES AND OTHERS (1978) REPORTED A CONCORDIA INTERCEPT AGE OF 422 M.Y. FOR THIS SAMPLE
5271	1	375.39	11	whole rock	conventional K-Ar	ALV-431-2-4-A	"4.72E-04, 0.585E-04, 1.19E-04*"	3.81	22.89	9493			initial age disturbed by later metamorphism		K=3.15 AND 3.17%; 40AR(RAD)=5.27 AND 5.00 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	HERMES AND OTHERS (1978) REPORTED A CONCORDIA INTERCEPT AGE OF 422 M.Y. FOR THIS SAMPLE
5271	2	402.22	12	biotite	conventional K-Ar	ALV-431-2-4-A	"4.72E-04, 0.585E-04, 1.19E-04*"	5.42	35.16	9595			initial age disturbed by later metamorphism		K=4.55 AND 4.45%; 40AR(RAD)=7.92 AND 7.85 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	HERMES AND OTHERS (1978) REPORT A CONCORDIA INTERCEPT AGE OF 422 M.Y. FOR THIS SAMPLE
5272	1	365.99	11	biotite	conventional K-Ar	ALV-349-2-1-A	"4.72E-04, 0.585E-04, 1.19E-04*"	1.39	8.12	9798			initial age disturbed by later metamorphism	"BIOTITE 15%, PYROXENE (OR HORNBLENDE) 80%, AND OTHER MINERALS 5% --R.D. BALLARD"	K=1.11 AND 1.20%; 40AR(RAD)=1.70 AND 1.94 X E-5 CC/GM; ANALYTICAL DATA RELEASED BY R.D. BALLARD	THE CONCORDIA INTERCEPT AGE OF 422 M.Y. AS REPORTED BY HERMES AND OTHERS (1978) MAY APPLY TO THIS GRANITE
5273	1	262	8	whole rock	conventional K-Ar	SCUBA-1-1	no decay constants given						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	THE CONCORDIA INTERCEPT AGE OF 422 M.Y. AS REPORTED BY HERMES AND OTHERS (1978) MAY APPLY TO THIS GRANITE
5274	1	400.3	19	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	53.04	97			initial age disturbed by later metamorphism		"ANALYTICAL DATA TAKEN FROM ZARTMAN AND OTHERS, 1970, SAMPLE NO. 1 (CONN), P. 3360"	
5275	1	321.64	15	hornblende	conventional K-Ar	HB47	"4.72E-04, 0.585E-04, 1.19E-04*"	0.478	2.423	29			initial age disturbed by later metamorphism	ESTIMATED 2% BIOTITE IMPURITY	POTASSUIM DETERMINED BY ISOTOPE DILUTION	"U-PB ZIRCON AGES AROUND 500-550 M.M. (SEE DAVIS AND OTHERS, 1960) REPORTED FOR THIS TONALITE"
5276	1	305.08	10	hornblende	conventional K-Ar	HB21	"4.72E-04, 0.585E-04, 1.19E-04*"	2.47	11.82	71			initial age disturbed by later metamorphism	ESTIMATED 8% BIOTITE IMPURITY	POTASSUIM DETRMINED BY ISOTOPE DILUTION	TILTON AND OTHERS (1959) REPORTED U-PB ZIRCON AGES OF 355-450 M.Y. FOR THIS GRANITE
5277	1	979.14	30	hornblende	conventional K-Ar	HP20	"4.72E-04, 0.585E-04, 1.19E-04*"	1.585	29.67	83			age of metamorphic crystallization	ESTIMATED 0.5% BIOTITE IMPURITY	K=1.34% AND 1.29% BY ISOTOPE DILUTION	TILTON AND OTHERS (1960) REPORT BIOTITE K-AR AGE OF 1010 M.Y. FOR THIS ROCK
5278	1	919.77	25	hornblende	conventional K-Ar	HSK	"4.72E-04, 0.585E-04, 1.19E-04*"	2.02	34.89	82			minimum age of intrusion	QUITE PURE HORNBLENDE CONCENTRATE	POTASSIUM DETRMINED BY ISOTOPE DILUTION	THIS AGE AGREES WELL WITH OTHER RADIOMETRIC AGES REPORTED BY TILTON AND OTHERS (1960) FOR THIS GRANITE
5279	1	840.62	25	hornblende	conventional K-Ar	HG-15	"4.72E-04, 0.585E-04, 1.19E-04*"	0.637	9.82	62				2% BIOTITE IMPURITY	"(0.532, 0.542% K--FLAME PHOTOMETRY; 0.508 AND 0.531% K--ISOTOPE DILUTION, AVERAGE=0.528%"	"AGE AGREES WITH 207PB/206PB AGE OF 800 +/- 50 M.Y. (DAVIS AND OTHERS, 1962, J.G.R., V. 67, P. 1987-1966), HOWEVER THE AGE IS HIGHLY DISCORDANT WITH REGIONAL K-AR AGES, THE SAMPLE MAY CONTAIN EXCESS ARGON--COMPILER"
5280	1	912.15	25	hornblende	conventional K-Ar	HB15	"4.72E-04, 0.585E-04, 1.19E-04*"	2	34.18	91			minimum age of metamorphic crystallization	QUITE PURE HORNBLENDE CONCENTRATE		TILTON AND OTHERS (1960) REPORTED U-PB ZIRCON AGES OF AROUND 1000 M.Y. FOR THIS GNEISS
5281	1	317.04	10	hornblende	conventional K-Ar	H3006	"4.72E-04, 0.585E-04, 1.19E-04*"	2.02	10.08	56			initial age disturbed by later metamorphism	HORNBLENDE CONCENTRATE INCLUDED 5% BIOTITE	K=1.68% AND 1.68% BY ISOTOPE DILUTION	
5282	1	1194.71	30	hornblende	conventional K-Ar	H4068	"4.72E-04, 0.585E-04, 1.19E-04*"	1.2	29.27	85			age of uplift and cooling	QUITE PURE HORNBLENDE CONCENTRATE	POTASSUIM DETERMINED BY ISOTOPE DILUTION	
5283	1	335	13	muscovite	conventional K-Ar	BMD-16M	"4.8E-04, 0.58E-04*"	10.11	53.54				age of intrusion	12-INCH WIDE AND 6-INCH THICK MUSCOVITE BOOK		
5283	2	331	13	muscovite	conventional K-Ar	BMD-16M	"4.8E-04, 0.58E-04*"	10.48	54.88				age of intrusion	A 12-INCH WIDE AND 6-INCH THICK MUSCOVITE BOOK		
5283	3	209	10	K feldspar	conventional K-Ar	BMD-16P	"4.8E-04, 0.58E-04*"	12.53	40.02							"AGE IS SPURIOUS, PROBABLE LEAKAGE OF RADIOGENIC ARGON"
5284	1	326	13	muscovite	conventional K-Ar	BMD-3B	"4.8E-04, 0.58E-04*"	10.22	52.65				age of intrusion	LARGE 6-INCH WIDE MUSCOVITE BOOK		
5284	2	431.9	94	albite	conventional K-Ar	BMD-3A	"4.8E-04, 0.58E-04*"	0.47	3.302	80			age not evaluated			
5284	3	394.28	85	albite	conventional K-Ar	BMD-3D	"4.8E-04, 0.58E-04*"	0.45	2.855	80			age not evaluated			
5285	1	324	13	muscovite	conventional K-Ar	BND-15	"4.8E-04, 0.58E-04*"	8.7	44.39				age of intrusion			
5286	1	330	13	common micas	conventional K-Ar	BMD-10	"4.8E-04, 0.58E-04*"	8.29	43.23				age of intrusion	BIOTITE-MUSCOVITE MIXTURE		
5286	2	302.22	13	common micas	conventional K-Ar	BMD-10	"4.8E-04, 0.58E-04*"	8.28	39.22					BIOTITE-MUSCOVITE MIXTURE		THIS AGE APPEARS TOO YOUNG
5287	1	264	10	biotite	conventional K-Ar	BMD-18A	"4.8E-04, 0.58E-04*"	7.8	31.92						RADIOGENIC 40-AR=6.96XE-5 AND 7.35XE-5 CC/GRAM	AGE TOO YOUNG
5288	1	343	15	biotite	conventional K-Ar	BMD-21	"4.8E-04, 0.58E-04*"	2.01	10.93				initial age disturbed by later metamorphism	MIXTURE OF AMPHIBOLE AND BIOTITE		
5289	1			beryl		BMD-9	"4.8E-04, 0.58E-04"		20.07						K IS LESS THAN 0.05%; NO AGE CALCULATED	
5290	1			beryl		BMD-2D	"4.8E-04, 0.58E-04"		24.98						K IS LESS THAN 0.1%; NO AGE CALCULATED	
5291	1	386.05	11	biotite	conventional K-Ar	L-607B	"4.72E-04, 0.584E-04, 1.18E-04*"	8.76	54.29	95			initial age disturbed by later metamorphism	8% CHLORITE IN BIOTITE CONCENTRATE	POTASSIUM DETERMINED BY ISOTOPE DILUTION	
5291	2	407.59	12	whole rock	conventional K-Ar	L-607WR	"4.72E-04, 0.584E-04, 1.18E-04*"	4.18	27.52	96			age of metamorphic crystallization		POTASSIUM DETERMINED BY ISOTOPE DILUTION	
5292	1	357.2	11	biotite	conventional K-Ar	L-480B	"4.72E-04, 0.584E-04, 1.18E-04*"	9.81	55.79	96					K=8.14% AND 8.15% (ISOTOPE DILUTION)	AGE APPARENTLY REFLECTS THE TIME OF A THERMAL EVENT
5292	2	361.53	11	muscovite	conventional K-Ar	L-480M	"4.72E-04, 0.584E-04, 1.18E-04*"	10.81	62.3	93					K=8.95% AND 8.99% (ISOTOPE DILUTION)	AGE APPARENTLY REFLECTS THE TIME OF A THERMAL EVENT
5293	1	445.5	13	whole rock	conventional K-Ar	L-477WR	"4.72E-04, 0.584E-04, 1.18E-04*"	2.58	18.77	97			age meaning uncertain (geologic factors)		POTASSIUM DETERMINED BY ISOTOPE DILUTION	
5294	1	420.49	12	whole rock	conventional K-Ar	L-611WR	"4.72E-04, 0.584E-04, 1.18E-04*"	4.11	28.02	94			age meaning uncertain (geologic factors)		K=3.40% AND 3.42% (ISOTOPE DILUTION)	
5296	1	359.09	14	biotite	conventional K-Ar	L-155B	"4.72E-04, 0.584E-04, 1.18E-04*"	9.01	51.54	86					POTASSIUM DETERMINED BY ISOTOPE DILUTION	"AGE APPARENTLY EFFECTED BY PERMIAN THERMAL EVENT (SEE ZARTMAN AND OTHERS,1970)"
5297	1	283.34	11	biotite	conventional K-Ar	L-152B	"4.72E-04, 0.584E-04, 1.18E-04*"	8.61	38.03	83				3% CHLORITE PRESENT IN THE BIOTITE	POTASSIUM DETERMINED BY ISOTOPE DILUTION	"AGE APPARENTLY EFFECTED BY PERMIAN THERMAL EVENT (SEE ZARTMAN AND OTHERS, 1970)"
5298	1	333.19	13	muscovite	conventional K-Ar	L-154	"4.72E-04, 0.584E-04, 1.18E-04*"	10.02	52.79	94					POTASSIUM BY ISOPOTE DILUTION	"AGE APPARENTLY EFFECTED BY A PERMIAN THERMAL EVENT (SEE ZARTMAN AND OTHERS, 1970)"
5299	1	339.46	15	muscovite	conventional K-Ar	HOOT OWL M	"4.72E-04, 0.583E-04*"	10.47	56.3				minimum age of intrusion			
5300	1	340.06	15	muscovite	conventional K-Ar	MCKINNEY	"4.72E-04, 0.583E-04*"	9.93	53.5				minimum age of intrusion			
5300	2	354.49	15	muscovite	conventional K-Ar	MCKINNEY	"4.72E-04, 0.583E-04*"	9.93	56				minimum age of intrusion			
5301	1	346.75	15	muscovite	conventional K-Ar	MINPRO M	"4.72E-04, 0.583E-04*"	10.81	59.5				minimum age of intrusion			
5302	1	349.69	13	muscovite - biotite	conventional K-Ar	L-30 M+B	"4.72E-04, 0.583E-04*"	9.36	52	93			minimum age of intrusion	MIXTURE OF MUSCOVITE AND BIOTITE		
5303	1	363.29	13	biotite	conventional K-Ar	L-141B	"4.72E-04, 0.583E-04*"	8.94	51.8	95			initial age disturbed by later metamorphism			THE GNEISS HAS UNDERGONE TWO PERIODS OF METAMORPHISM--COMPILER
5304	1	440.74	15	biotite	conventional K-Ar	BK-149B	"4.72E-04, 0.583E-04*"	3.52	25.3	90				LOW POTASSIUM CONTENT SUGGESTS IMPURE BIOTITE--COMPILER		APPROX.IMATE AGE OF METAMORPHISM (?)--COMPILER
5305	1	462.5	21	biotite	conventional K-Ar	BK-61B	"4.72E-04, 0.583E-04*"	1.78	13.51	73				LOW POTASSIUM CONTENT SUGGESTS IMPURE BIOTITE--COMPILER		APPROX.IMATE AGE OF METAMORPHISM (?)--COMPILER
5306	1	704.08	23	biotite	conventional K-Ar	L-330B	"4.72E-04, 0.583E-04*"	7.89	97.83	93			initial age disturbed by later metamorphism			THE MINERALS IN THE PRECAMBRIAN GNEISS HAVE LOST ARGON DUE TO PALEZOIC METAMORHISM--COMPILER
5307	1	346.01	13	muscovite	conventional K-Ar	L-136M	"4.72E-04, 0.583E-04*"	10.89	59.8	93			minimum age of intrusion			
5308	1	353.77	13	muscovite	conventional K-Ar	L-139 M	"4.72E-04, 0.583E-04*"	10.13	57	89			minimum age of intrusion			
5309	1	448.85	14	biotite	conventional K-Ar	L-140 B	"4.72E-04, 0.583E-04*"	8.9	65.3	7077					40AR-RAD=0.262 AND 0.260 PPM	AGE IS ANOMOLOUSLY OLD COMPAIRED TO THE RB-SR AGE ON THE SAME SAMPLE AND REGIONAL K-AR MINERAL AGES; THE SAMPLE MAY CONTAIN EXCESS ARGON--COMPILER
5310	1	362.13	13	biotite	conventional K-Ar	L-16 B	"4.72E-04, 0.583E-04*"	8.66	50	93			minimum age of intrusion			
5311	1	357.58	13	biotite	conventional K-Ar	L-118 B	"4.72E-04, 0.583E-04*"	9.01	51.3	79			minimum age of intrusion			
5312	1	321.02	11	muscovite	conventional K-Ar	L-119 M	"4.72E-04, 0.583E-04*"	10.28	52	93			minimum age of intrusion			
5313	1	252.39	9	biotite	conventional K-Ar	L-125B	"4.72E-04, 0.583E-04*"	9.11	35.53	91			minimum age of intrusion			
5314	1	282.75	10	biotite	conventional K-Ar	L-127B	"4.72E-04, 0.583E-04*"	9.31	41.03	90			initial age disturbed by later metamorphism			
5315	1	298.75	10	muscovite	conventional K-Ar	L-128M	"4.72E-04, 0.583E-04*"	10.27	48.04	87			age of intrusion			
5316	1	314.37	11	biotite	conventional K-Ar	L-129B	"4.72E-04, 0.583E-04*"	9.16	45.29	92			initial age disturbed by later metamorphism			
5317	1	328.81	12	muscovite	conventional K-Ar	L-132M	"4.72E-04, 0.583E-04*"	10.07	52.29	94			initial age disturbed by later metamorphism			
5317	2	352.61	13	biotite	conventional K-Ar	L-132B	"4.72E-04, 0.583E-04*"	8.39	47.04	94			initial age disturbed by later metamorphism			
5318	1	401.99	14	biotite	conventional K-Ar	L-41B	"4.72E-04, 0.583E-04*"	9.07	58.8	92			initial age disturbed by later metamorphism			
5319	1	231.07	9	biotite	conventional K-Ar	L-124B	"4.72E-04, 0.583E-04*"	4.37	15.51	76			minimum age of intrusion			
5319	2	238.05	9	biotite	conventional K-Ar	L-124B	"4.72E-04, 0.583E-04*"	4.37	16.01	55			minimum age of intrusion			
5320	1	314.79	11	phlogopite	conventional K-Ar	L-120P	"4.72E-04, 0.583E-04*"	7.63	37.78	89			minimum age of metamorphic crystallization			
5321	1	425.14	16	biotite	conventional K-Ar	L-22B	"4.72E-04, 0.583E-04*"	7.25	50.04	92			initial age disturbed by later metamorphism			
5322	1	439.37	15	biotite	conventional K-Ar	L-133B	"4.72E-04, 0.583E-04*"	7.51	53.79	64			initial age disturbed by later metamorphism			
5323	1	363.38	13	biotite	conventional K-Ar	L-146B	"4.72E-04, 0.583E-04*"	9.54	55.29	94			initial age disturbed by later metamorphism			
5324	1	808.94	27	biotite	conventional K-Ar	L-149B	"4.72E-04, 0.583E-04*"	8.05	118.3	97						AGE MAY BE A MINIMUN FOR THE AGE OF METAMORPHISM
5325	1	680.83	22	biotite	conventional K-Ar	L-328B	"4.72E-04, 0.583E-04*"	7.27	86.57	93			initial age disturbed by later metamorphism			
5326	1	657.58	22	biotite	conventional K-Ar	L-331B	"4.72E-04, 0.583E-04*"	8.28	94.58	97			initial age disturbed by later metamorphism			
5327	1	648.88	22	biotite	conventional K-Ar	L-332B	"4.72E-04, 0.583E-04*"	7.7	86.57	95			initial age disturbed by later metamorphism			
5328	1	532.86	18	biotite	conventional K-Ar	L-333B	"4.72E-04, 0.583E-04*"	7.99	71.31	95			initial age disturbed by later metamorphism			
5329	1	349.77	13	muscovite	conventional K-Ar	WESTMORE M	"4.72E-04, 0.583E-04*"	8.87	49.29	86			minimum age of intrusion			
5330	1	375.82	13	biotite	conventional K-Ar	L-25B	"4.72E-04, 0.583E-04*"	8.36	50.29	92			initial age disturbed by later metamorphism			
5365	1	525.44	10	whole rock	conventional K-Ar	434W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.293	2.573	88			age of intrusion			
5365	2	513	10	whole rock	conventional K-Ar	434W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.293	2.503	91			age of intrusion			
5366	1	508.45	10	riebeckite	conventional K-Ar	533H	"4.72E-04, 0.585E-04, 1.19E-04*"	1.606	13.58	96			age of intrusion			BELIEVED TO BE THE YOUNGEST GRANITIC ROCK IN THE WICHITA MOUNTAINS
5366	2	506.49	10	riebeckite	conventional K-Ar	533H	"4.72E-04, 0.585E-04, 1.19E-04*"	1.606	13.52	95			age of intrusion			
5367	1	503.29	10	whole rock	conventional K-Ar	435W	"4.72E-04, 0.585E-04, 1.19E-04*"	1.729	14.45	95			age of intrusion			
5367	2	514.2	10	whole rock	conventional K-Ar	435W	"4.72E-04, 0.585E-04, 1.19E-04*"	1.729	14.81	94			age of intrusion			
5367	3	512.68	10	whole rock	conventional K-Ar	435W	"4.72E-04, 0.585E-04, 1.19E-04*"	1.729	14.76	94			age of intrusion			
5367	4	510.43	10	biotite	conventional K-Ar	435B	"4.72E-04, 0.585E-04, 1.19E-04*"	6.977	59.26	97			age of intrusion			
5367	5	516.5	10	biotite	conventional K-Ar	435B	"4.72E-04, 0.585E-04, 1.19E-04*"	6.977	60.07	98			age of intrusion			
5368	1	739	15	whole rock	conventional K-Ar	436W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.135	1.774	80						SPURIOUS AGE; EXCESS AR-40 PROBABLY PRESENT
5368	2	726	15	whole rock	conventional K-Ar	436W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.135	1.737	79						"SPURIOUS AGE, EXCESS AR-40 PROBABLY PRESENT"
5368	3	758	15	whole rock	conventional K-Ar	436W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.135	1.832	65						"SPURIOUS AGE, EXCESS AR-40 PROBABLY PRESENT"
5368	4	820	15	whole rock	conventional K-Ar	436W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.135	2.017	75						"SPURIOUS AGE, EXCESS AR-40 PROBABLY PRESENT"
5369	1	719	15	plagioclase	conventional K-Ar	436V	"4.72E-04, 0.585E-04, 1.19E-04*"	0.1527	1.942	70						"SPURIOUS AGE, EXCESS AR-40 PROBABLY PRESENT"
5369	2	708.28	15	plagioclase	conventional K-Ar	436V	"4.72E-04, 0.585E-04, 1.19E-04*"	0.1527	1.907	80						"SPURIOUS AGE, EXCESS AR-40 PROBABLY PRESENT"
5369	3	705.51	15	plagioclase	conventional K-Ar	436V	"4.72E-04, 0.585E-04, 1.19E-04*"	0.1527	1.898	72						"SPURIOUS AGE, EXCESS AR-40 PROBABLY PRESENT"
5370	1	515.72	10	whole rock	conventional K-Ar	437W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.1765	1.517	85			age of intrusion			
5370	2	514.54	10	whole rock	conventional K-Ar	437W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.1765	1.513	83			age of intrusion			
5370	3	495.15	10	plagioclase	conventional K-Ar	437V	"4.72E-04, 0.585E-04, 1.19E-04*"	0.2415	1.981	90			minimum age of intrusion			
5370	4	495.15	10	plagioclase	conventional K-Ar	437V	"4.72E-04, 0.585E-04, 1.19E-04*"	0.2415	1.981	87			minimum age of intrusion			
5370	5	501.48	10	plagioclase	conventional K-Ar	437V	"4.72E-04, 0.585E-04, 1.19E-04*"	0.2415	2.01	81			age of intrusion			
5371	1	496.35	10	whole rock	conventional K-Ar	438W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.5884	4.84	90			minimum age of intrusion			
5371	2	504.4	10	whole rock	conventional K-Ar	438W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.5884	4.93	89			age of intrusion			
5372	1	517.45	10	biotite	conventional K-Ar	957B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.638	65.9	94			age of intrusion			
5372	2	518.13	10	biotite	conventional K-Ar	957B	"4.72E-04, 0.585E-04, 1.19E-04*"	7.638	66	93			age of intrusion			
5373	1	72.73	1.5	whole rock	conventional K-Ar	443W	"4.72E-04, 0.585E-04, 1.19E-04*"	1.256	1.342	86			age of intrusion			
5373	2	69.81	1.5	whole rock	conventional K-Ar	443W	"4.72E-04, 0.585E-04, 1.19E-04*"	1.256	1.287	79			age of intrusion			
5373	3	74.25	1.5	nepheline group	conventional K-Ar	443N	"4.72E-04, 0.585E-04, 1.19E-04*"	4.916	5.365	89			age of intrusion			
5373	4	74.65	1.5	nepheline group	conventional K-Ar	443N	"4.72E-04, 0.585E-04, 1.19E-04*"	4.916	5.394	76			age of intrusion			
5374	1	69.82	5	pyroxenes	conventional K-Ar	443X	"4.72E-04, 0.585E-04, 1.19E-04*"	0.0483	0.0495	22			age of intrusion			
5374	2	71.89	5	pyroxenes	conventional K-Ar	443X	"4.72E-04, 0.585E-04, 1.19E-04*"	0.0483	0.051	22			age of intrusion			
5375	1	69.01	1.5	whole rock	conventional K-Ar	562W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.3615	0.3661	43			minimum age of intrusion			
5375	2	69.23	1.5	whole rock	conventional K-Ar	562W	"4.72E-04, 0.585E-04, 1.19E-04*"	0.3615	0.3673	43			minimum age of intrusion			
5376	1	249.55	5	nepheline group	conventional K-Ar	444N	"4.72E-04, 0.585E-04, 1.19E-04*"	6.073	23.4	98			age of intrusion			
5376	2	247.26	5	nepheline group	conventional K-Ar	444N	"4.72E-04, 0.585E-04, 1.19E-04*"	6.073	23.17	97			age of intrusion			
5376	3	237.49	5	biotite	conventional K-Ar	444B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.989	32.85	93			minimum age of intrusion			
5376	4	239.25	5	biotite	conventional K-Ar	444B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.989	33.11	94			minimum age of intrusion			
5377	1	305.37	30	margarite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.062	0.297	22						A COOLING AGE
5377	2	485		chlorite group	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	0.0026					minimum age of intrusion		RADIOGENIC AR-40 VALUE LESS THAN 0.021XE-10MOL/GM	
5378	1	321.06	10	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.23	21.4	91				BIOTITE CONCENTRATE CONTAINS CONSIDERABLE CHLORITE		A COOLING AGE
5379	1	336.93	10	muscovite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	6	32	81				MUSCOVITE CONCENTRATE CONTAINS QUARTZ AND ROCK FRAGMENTS		A COOLING AGE
5380	1	190	6	biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	AGREES IN AGE WITH THE AGE OF THE PALISADE SILL OF NEW JERSEY AND THE CONNECTICUT VALLEY DIABASE INTRUSIVES
5381	1	289	15	whole rock	conventional K-Ar	R-3821	"4.742E-04, 0.558E-04*"	4.16	18.8	95		Hurley and others (1960)	initial age disturbed by later metamorphism			
5382	1	178	8	biotite	conventional K-Ar	B-3126B	"4.742E-04, 0.558E-04"	8.07		94		Hurley and others (1960)	age of intrusion		 K=6.67% AND 6.73%	
5383	1	242	11	biotite	conventional K-Ar	B-3815	"4.742E-04, 0.558E-04*"	8.56	31.98	97		Hurley and others (1960)	initial age disturbed by later metamorphism		 K=7.09% AND 7.12%	
5384	1	235	11	biotite	conventional K-Ar	B-3816	"4.742E-04, 0.558E-04*"	8.34	30.11	88		Hurley and others (1960)	initial age disturbed by later metamorphism		 K=6.88% AND 6.96%	
5385	1	246	12	biotite	conventional K-Ar	B-3814	"4.742E-04, 0.558E-04*"	7.6	28.8	93		Hurley and others (1960)	initial age disturbed by later metamorphism		K=6.28% AND 6.33%	
5386	1	259	13	whole rock	conventional K-Ar	R-3917	"4.742E-04, 0.558E-04*"	4.71	18.92	94		Hurley and others (1960)	initial age disturbed by later metamorphism		K=3.87% AND 3.95%	
5387	1	236	12	whole rock	conventional K-Ar	R-3920	"4.742E-04, 0.558E-04*"	3.4	12.36	87		Hurley and others (1960)	initial age disturbed by later metamorphism		 K=2.78% AND 2.86%	
5388	1	270	13	whole rock	conventional K-Ar	R-3818	"4.742E-04, 0.558E-04*"	4.86	20.36	98		Hurley and others (1960)	initial age disturbed by later metamorphism		 K=3.99% AND 4.07%	
5388	2	267	13	whole rock	conventional K-Ar	R-3818	"4.742E-04, 0.558E-04*"	4.85	20.11	98			initial age disturbed by later metamorphism		K=3.99% AND 4.07%	
5389	1	282	13	biotite	conventional K-Ar	B-3817	"4.742E-04, 0.558E-04*"	3.98	17.47	92		Hurley and others (1960)	age not evaluated	IMPURE BIOTITE CONCENTRATE	 K=3.31% AND 3.28%	
5389	2	253	12	biotite	conventional K-Ar	B-3817A	"4.742E-04, 0.558E-04*"	7.75	30.33	91		Hurley and others (1960)	initial age disturbed by later metamorphism	UPGRADED BIOTITE CONCENTRATE	K=6.46% AND 6.41%	
5390	1	366	17	biotite	conventional K-Ar	B-3609	"4.742E-04, 0.558E-04*"	6.66	38.87	84		Hurley and others (1960)			"K=5.49, 5.59, AND 5.56%"	AVERAGE AGE OF THREE DETERMINATIONS IS 364 M.Y.--PROBABLE AGE OF INTRUSION
5390	2	377	17	biotite	conventional K-Ar	B-3609	"4.742E-04, 0.558E-04*"	6.66	40.22	94		Hurley and others (1960)			"K=5.49, 5.59, AND 5.56%"	AVERAGE AGE OF THREE DETERMINATIONS IS 364 M.Y.--PROBABLE AGE OF INTRUSION
5390	3	368.58	15	biotite	conventional K-Ar	B-3609	"4.742E-04, 0.558E-04*"	6.66	39.21	100		Hurley and others (1960)				AVERAGE AGE OF THREE DETERMINATIONS IS 364 M.Y.--PROBABLE AGE OF INTRUSION
5391	1	358	10	biotite	conventional K-Ar	ME-10	"4.742E-04, 0.558E-04*"	8.45	48.21	96		Hurley and others (1960)	age of intrusion			
5392	1	383	10	whole rock	conventional K-Ar	R-3883	"4.742E-04, 0.558E-04*"	3.43	21.07	100		Hurley and others (1960)	age of metamorphic crystallization		 K=2.84 AND 2.86%	
5393	1	384	18	whole rock	conventional K-Ar	R-3447	"4.742E-04, 0.558E-04*"	3.21	19.75	97		Hurley and others (1960)	age of metamorphic crystallization		K=2.61% AND 2.71%	
5394	1	376	15	whole rock	conventional K-Ar	R-3444	"4.742E-04, 0.558E-04*"	3.94	23.68	98		Hurley and others (1960)	age of metamorphic crystallization		 K=3.29% AND 3.26%	
5395	1	355	15	whole rock	conventional K-Ar	R-3448	"4.742E-04, 0.558E-04*"	3.1	17.52	88		Hurley and others (1960)	minimum age of metamorphic crystallization		 K=2.57% AND 2.57%	
5396	1	360	15	biotite	conventional K-Ar	B-3593	"4.742E-04, 0.558E-04*"	4.51	26.06	97		Hurley and others (1960)	minimum age of intrusion			
5397	1	372	10	biotite	conventional K-Ar	ME-9	"4.742E-04, 0.558E-04*"	5.39	32.1	83		Hurley and others (1960)	age of intrusion			
5397	2	372	10	biotite	conventional K-Ar	ME-9	"4.742E-04, 0.558E-04*"	4.83	28.8	68		Hurley and others (1960)	age of intrusion			
5398	1	7.36	0.1	adularia	conventional K-Ar	USGS(M)-7346-1	"4.72E-04, 0.585E-04, 1.19E-04*"	10.28	1.091	82				37% QUARTZ IMPURITY		AGE OF MINERALIZATION
5398	2	7.22	0.1	adularia	conventional K-Ar	USGS(M)-7346-1	"4.72E-04, 0.585E-04, 1.19E-04*"	10.28	1.071	60				37% QUARTZ IMPURITY		AGE OF MINERALIZATION
5399	1	7.94	0.1	adularia	conventional K-Ar	USGS(M)-RCD1B	"4.72E-04, 0.585E-04, 1.19E-04*"	16.6	1.901	8090					40AR(RADIOGENIC)=1.885 AND 1.917XE-10MOL/GM	AGE OF MINERALIZATION
5400	1	8.25	0.2	adularia	conventional K-Ar	USGS(M)-B270	"4.72E-04, 0.585E-04, 1.19E-04*"	15.83	1.884	7438					40AR(RADIOGENIC)=1.930 AND 1.838XE-10MOL/GM	AGE OF MINERALIZATION
5401	1	8.86	0.4	hornblende	conventional K-Ar	USGS(M)-BH15	"4.72E-04, 0.585E-04, 1.19E-04*"	0.924	0.1182	12			age of intrusion	1% PYROXENE IMPURITY		
5401	2	8.97	0.2	biotite	conventional K-Ar	USGS(M)-BH15	"4.72E-04, 0.585E-04, 1.19E-04*"	6.97	0.9026	46			age of intrusion			
5402	1	8.7	0.4	whole rock	conventional K-Ar	USGS(M)-S1	"4.72E-04, 0.585E-04, 1.19E-04*"	2.63	0.3304	23			age of intrusion			
5402	2	8.54	0.4	plagioclase	conventional K-Ar	USGS(M)-S1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.847	0.1044	16			age of intrusion			
5402	3	9.09	0.4	plagioclase	conventional K-Ar	USGS(M)-S1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.709	0.093	1018			age of intrusion		40AR(RADIOGENIC)=0.0890 AND 0.0971XE-10MOL/GM	
5403	1	8.57	0.2	hornblende	conventional K-Ar	USGS(M)-B271	"4.72E-04, 0.585E-04, 1.19E-04*"	0.739	0.0914	2027				2% CHLORITE AND 1% PLAGIOCLASE IMPURITIES	40AR(RADIOGENIC)=0.0900 AND 0.0928XE-10MOL/GM	PRIMARY AGE MAY HAVE BEEN CHANGED BY ALTERATION SOLUTIONS
5403	2	8.67	0.3	plagioclase	conventional K-Ar	USGS(M)-B271	"4.72E-04, 0.585E-04, 1.19E-04*"	1.32	0.1651	1017					40AR(RADIOGENIC)=0.1602 AND 0.1701XE-10MOL/GM	PRIMARY AGE MAY HAVE BEEN CHANGED BY ALTERATION SOLUTIONS
5404	1	8.46	0.2	whole rock	conventional K-Ar	USGS(M)-856-8	"4.72E-04, 0.585E-04, 1.19E-04*"	5.13	0.6262	42						AGE HAS BEEN REDUCED BY HYDROTHERMAL SOLUTIONS
5404	2	9.46	0.5	hornblende	conventional K-Ar	USGS(M)-856-8	"4.72E-04, 0.585E-04, 1.19E-04*"	0.76	0.1038	20			age of intrusion	4% PYROXENE IMPURITY		
5405	1	9.46	0.5	hornblende	conventional K-Ar	USGS(M)-BH17	"4.72E-04, 0.585E-04, 1.19E-04*"	0.822	0.1123	22			age of intrusion			
5406	1	2.8	0.1	whole rock	conventional K-Ar	USGS(M)-7346-1	"4.72E-04, 0.585E-04, 1.19E-04*"	3.99	0.1608	51			age of volcanism			
5407	1	8.99	0.2	biotite	conventional K-Ar	USGS(M)-BH32	"4.72E-04, 0.585E-04, 1.19E-04*"	8.48	1.1	50			age of volcanism			
5408	1	9.08	0.3	biotite	conventional K-Ar	USGS(M)-856-32	"4.72E-04, 0.585E-04, 1.19E-04*"	8.87	1.163	3076			age of volcanism		40AR(RADIOGENIC)=1.123 AND 1.204XE-10MOL/GM	
5409	1	9.17	0.2	biotite	conventional K-Ar	USGS(M)-856-10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.19	1.084	59			age of volcanism			
5409	2	9.22	0.2	hornblende	conventional K-Ar	USGS(M)-856-10	"4.72E-04, 0.585E-04, 1.19E-04*"	1.03	0.1371	35			age of volcanism	4% BIOTITE IMPURITY		
5410	1	9.28	0.5	hornblende	conventional K-Ar	USGS(M)-BH26	"4.72E-04, 0.585E-04, 1.19E-04*"	0.863	0.1156	25			age of volcanism			
5411	1	9.67	0.2	biotite	conventional K-Ar	USGS(M)-BH16	"4.72E-04, 0.585E-04, 1.19E-04*"	7.78	1.086	50			age of volcanism	2% IMPURITIES		
5412	1	8.96	0.2	biotite	conventional K-Ar	USGS(M)-854-1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.2	1.06	54			age of volcanism			
5413	1	8.96	0.2	biotite	conventional K-Ar	USGS(M)-BH29	"4.72E-04, 0.585E-04, 1.19E-04*"	8.4	1.086	56			age of intrusion			
5414	1	9.38	0.1	biotite	conventional K-Ar	USGS(M)-BM2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.97	1.079	5758			age of volcanism	1% IMPURITIES	40AR(RADIOGENIC)=1.082 AND 1.076XE-10MOL/GM	
5415	1	9.51	0.3	whole rock	conventional K-Ar	USGS(M)-BH9	"4.72E-04, 0.585E-04, 1.19E-04*"	2.6	0.3571	64			age of volcanism			
5416	1	9.73	0.2	hornblende	conventional K-Ar	USGS(M)-MTB1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.906	0.1272	48			age of volcanism	6% PYROXENE IMPURITY		
5417	1	9.35	0.2	biotite	conventional K-Ar	USGS(M)-BH27	"4.72E-04, 0.585E-04, 1.19E-04*"	8.14	1.098	43			age of volcanism	1% IMPURITIES		
5418	1	8.22	0.2	biotite	conventional K-Ar	USGS(M)-BH19A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.13	0.9647	47			age of volcanism			
5419	1	5.89	0.2	biotite	conventional K-Ar	USGS(M)-BH6	"4.72E-04, 0.585E-04, 1.19E-04*"	8.24	0.6999	24			age of intrusion			
5420	1	5.34	0.3	biotite	conventional K-Ar	USGS(M)-BH20	"4.72E-04, 0.585E-04, 1.19E-04*"	7.08	0.5451	17			age of intrusion	1% HORNBLENDE IMPURITY		
5420	2	5.55	0.6	hornblende	conventional K-Ar	USGS(M)-BH20	"4.72E-04, 0.585E-04, 1.19E-04*"	0.831	0.0665	9			age of intrusion	1% BIOTITE IMPURITY		
5421	1	254		lepidolite	conventional K-Ar	O-S-F	"4.72E-04, 0.577E-04"	10.48					age of intrusion		K=8.70% AND 8.71%; 40AR/40K=0.0153	
5425	1	396.44	12	biotite	conventional K-Ar	G-246	"4.72E-04, 0.585E-04, 1.19E-04*"	7.88	50.3	9691			minimum age of intrusion		"%K=6.66, 6.43; 40AR(RAD)= 0.203, 0.198 PPM"	
5426	1	426.35	15	biotite	conventional K-Ar	G-247	"4.72E-04, 0.585E-04, 1.19E-04*"	7.51	52	9696			minimum age of intrusion		"%K=6.16, 6.30; AR40(RAD)=0.203, 0.214 PPM"	
5427	1	500	10	biotite	39Ar-40Ar total fusion	15	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE; SAMPLE YIELDS SADDLE SHAPED INCREMENTAL RELEASE PATTERN	
5428	1	332	10	biotite	39Ar-40Ar total fusion	24	"4.72E-04, 0.585E-04, 1.19E-04"								40-39 TOTAL-GAS AGE	INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHISM (ABOUT 480 M.Y. AGO); PRESENT AGE IS APPARENTLY A COOLING AGE.
5428	2	352.75	8	biotite	conventional K-Ar	24	"4.72E-04, 0.585E-04, 1.19E-04*"	8.925	50.06	80						INITIAL AGE COMPLETELY RESET BY METAMORPHIC EVENT AROUND 480 M.Y. AGO; PRESENT K-AR AGE IS APPARENTLY A COOLING AGE
5429	1	338	10	biotite	39Ar-40Ar total fusion	25	"4.72E-04, 0.585E-04, 1.19E-04"								40-39 TOTAL-GAS AGE	INITIAL AGE COMPLETLY RESET BY EARLY PALEOZOIC METAMORPHIC EVENT(ABOUT 480 M.Y. AGO); PRESENT AGE IS APPARENTLY A COOLING AGE
5430	1	368	10	hornblende	39Ar-40Ar total fusion	26	"4.72E-04, 0.585E-04, 1.19E-04"								40-39 TOTAL-GAS AGE	INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHIC EVENT (ABOUT 480 M.Y. AGO); PRESENT AGE IS APPARENTLY A COOLING AGE
5431	1	808	15	biotite	39Ar-40Ar total fusion	1	"4.72E-04, 0.585E-04, 1.19E-04"						age of uplift and cooling		40-39 TOTAL-GAS AGE	
5432	1	1003	20	hornblende	39Ar-40Ar total fusion	2	"4.72E-04, 0.585E-04, 1.19E-04"						age of metamorphic crystallization		40-39 TOTAL-GAS AGE	
5433	1	786	15	biotite	39Ar-40Ar total fusion	3	"4.72E-04, 0.585E-04, 1.19E-04"						age of uplift and cooling		40-39 TOTAL-GAS AGE	
5433	2	799.93	18	biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.894	128.9	75			age of uplift and cooling			
5434	1	758	15	biotite	39Ar-40Ar total fusion	4	"4.72E-04, 0.585E-04, 1.19E-04"						age of uplift and cooling		40-39 TOTAL-GAS AGE	
5435	1	956	20	hornblende	39Ar-40Ar total fusion	5	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of metamorphic crystallization		40-39 TOTAL-GAS AGE	
5436	1	795	15	biotite	39Ar-40Ar total fusion	6A	"4.72E-04, 0.585E-04, 1.19E-04"						age of uplift and cooling	0.18-0.25 MM GRAINI SIZE	40-39 TOTAL-GAS AGE	
5436	2	796	15	biotite	39Ar-40Ar total fusion	6B	"4.72E-04, 0.585E-04, 1.19E-04"						age of uplift and cooling	0.15-0.18 MM GRAIN SIZE	40-39 TOTAL-GAS AGE	
5436	3	787.54	16	biotite	conventional K-Ar	6A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.195	116.5	87			age of uplift and cooling	0.18-0.25 MM GRAIN SIZE		
5437	1	774	15	biotite	39Ar-40Ar total fusion	7	"4.72E-04, 0.585E-04, 1.19E-04"						age of uplift and cooling		40-39 TOTAL-GAS AGE	
5437	2	1059	20	hornblende	39Ar-40Ar total fusion	7	"4.72E-04, 0.585E-04, 1.19E-04"						age of metamorphic crystallization		40-39 TOTAL-GAS AGE	
5437	3	1047.03	24	hornblende	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	1.316	26.89	50			age of metamorphic crystallization			
5438	1	705	15	biotite	39Ar-40Ar total fusion	8	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE	
5439	1	739	15	biotite	39Ar-40Ar total fusion	9	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE	
5439	2	997	20	hornblende	39Ar-40Ar total fusion	9	"4.72E-04, 0.585E-04, 1.19E-04"						age of metamorphic crystallization		40-39 TOTAL-GAS AGE	
5439	3	763.41	24	biotite	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.639	118.2	84			initial age disturbed by later metamorphism			
5440	1	1001	20	hornblende	39Ar-40Ar total fusion	10	"4.72E-04, 0.585E-04, 1.19E-04"						age of metamorphic crystallization		40-39 TOTAL-GAS AGE	
5441	1	937	20	hornblende	39Ar-40Ar total fusion	11	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE	
5442	1	675	15	biotite	39Ar-40Ar total fusion	12	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE	
5442	2	687.92	15	biotite	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	8.974	108.2	79			initial age disturbed by later metamorphism			
5443	1	636	15	biotite	39Ar-40Ar total fusion	13	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE	
5443	2	1019	20	hornblende	39Ar-40Ar total fusion	13	"4.72E-04, 0.585E-04, 1.19E-04"						age of metamorphic crystallization		40-39 TOTAL-GAS AGE	
5444	1	893	20	hornblende	39Ar-40Ar total fusion	14	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE	
5445	1	294	10	biotite	39Ar-40Ar total fusion	16	"4.72E-04, 0.585E-04, 1.19E-04"								40-39 TOTAL-GAS AGE	INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHISM(ABOUT 480 M.Y. AGO); PRESENT AGE IS APPARENTLY A COOLING AGE
5446	1	617	15	hornblende	39Ar-40Ar total fusion	17	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE	
5447	1	827	20	hornblende	39Ar-40Ar total fusion	18	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE	
5448	1	324	10	biotite	39Ar-40Ar total fusion	19	"4.72E-04, 0.585E-04, 1.19E-04"								40-39 TOTAL-GAS AGE	INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHISM (ABOUT 480 M.Y. AGO); PRESENT AGE IS APPARENTLY A COOLING AGE
5449	1	287	10	biotite	39Ar-40Ar total fusion	20	"4.72E-04, 0.585E-04, 1.19E-04"								40-39 TOTAL-GAS AGE	INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHISM(ABOUT 480 M.Y. AGO); PRESENT AGE IS APPARENTLY A COOLING AGE
5449	2	291.43	7	biotite	conventional K-Ar	20	"4.72E-04, 0.585E-04, 1.19E-04*"	8.668	39.47	60						INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHISM(ABOUT 480 M.Y. AGO); PRESENT AGE IS APPARENTLY A COOLING AGE
5450	1	608	15	hornblende	39Ar-40Ar total fusion	21	"4.72E-04, 0.585E-04, 1.19E-04"						initial age disturbed by later metamorphism		40-39 TOTAL-GAS AGE	
5450	2	618.83	14	hornblende	conventional K-Ar	21	"4.72E-04, 0.585E-04, 1.19E-04*"	0.922	9.799	66			initial age disturbed by later metamorphism			
5451	1	500	10	hornblende	39Ar-40Ar total fusion	22	"4.72E-04, 0.585E-04, 1.19E-04"								40-39 TOTAL-GAS AGE	INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHISM(ABOUT 480 M.Y. AGO)
5452	1	421	10	hornblende	39Ar-40Ar total fusion	23	"4.72E-04, 0.585E-04, 1.19E-04"								40-39 TOTAL-GAS AGE	INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHISM(ABOUT 480 M.Y. AGO); PRESENT AGE IS APPARENTLY A COOLING AGE
5452	2	431.81	10	hornblende	conventional K-Ar	23	"4.72E-04, 0.585E-04, 1.19E-04*"	1.301	9.138	65						INITIAL AGE COMPLETELY RESET BY EARLY PALEOZOIC METAMORPHISM(ABOUT 480 M.Y. AGO); PRESENT AGE IS APPARENTLY A COOLING AGE
5480	1	383.21	15	biotite	conventional K-Ar	L-47B	"4.72E-04, 0.583E-04*"	9.26	56.92	9498			initial age disturbed by later metamorphism		RADIOGENIC 40AR=0.227 AND 0.228 PPM	"A K-AR AGE OF 375 M.Y. WAS REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606)"
5481	1	371.74	15	muscovite	conventional K-Ar	L-48M	"4.72E-04, 0.583E-04*"	10.23	60.8	95			minimum age of intrusion			"A K-AR AGE OF 364 M.Y. WAS REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606)"
5482	1	848.21	42	biotite	conventional K-Ar	L-46B	"4.72E-04, 0.583E-04*"	8.89	138.6	97			age of metamorphic crystallization			
5483	1	831.79	33	biotite	conventional K-Ar	L-42B	"4.72E-04, 0.583E-04*"	9.11	138.6	93			age of metamorphic crystallization			
5484	1	912.33	25	plagioclase	conventional K-Ar	L-207P	"4.72E-04, 0.583E-04*"	5.73	97.95	9598					K=4.79% AND 4.73%; RADIOGENIC 40AR=0.389 AND 0.394 PPM	AGE MAY BE TOO OLD
5485	1	805.26	32	biotite	conventional K-Ar	L-206B	"4.72E-04, 0.583E-04*"	4.88	71.31	85			age of metamorphic crystallization			
5486	1	820.22	32	biotite	conventional K-Ar	L-208B	"4.72E-04, 0.583E-04*"	8.1	121.1	98			minimum age of intrusion			
5487	1	837.8	33	biotite	conventional K-Ar	L-44B	"4.72E-04, 0.583E-04*"	8.82	135.4	97			age of metamorphic crystallization			
5488	1	367.06	14	biotite	conventional K-Ar	L-158B	"4.72E-04, 0.583E-04*"	6.02	35.28	98			initial age disturbed by later metamorphism			"A K-AR AGE OF 359 M.Y. WAS REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606)"
5489	1	450.81	13	biotite	conventional K-Ar	L-202B	"4.72E-04, 0.583E-04*"	6.94	51.17	9696			initial age disturbed by later metamorphism		K=5.79% AND 5.74%; RADIOGENIC 40AR=0.199 AND 0.210 PPM	"A K-AR AGE OF 440 M.Y. WAS REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606)"
5490	1	296.53	9	K feldspar	conventional K-Ar	L-200F	"4.72E-04, 0.583E-04*"	12.78	59.3	98					POTASSIUM DETERMINED BY ISOTOPE DILUTION	LOW AGE MAY BE DUE TO LEAKAGE OF RADIOGENIC ARGON
5491	1	386.2	15	biotite	conventional K-Ar	L-199B	"4.72E-04, 0.583E-04*"	4.6	28.52	92			initial age disturbed by later metamorphism			"A K-AR AGE OF 376 M.Y. WAS REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606)"
5492	1	357.02	14	phlogopite	conventional K-Ar	L-197P	"4.72E-04, 0.583E-04*"	8.54	48.54	96			initial age disturbed by later metamorphism			"A K-AR AGE OF 349 M.Y. WAS REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606)"
5493	1	364.34	14	biotite	conventional K-Ar	L-440B	"4.72E-04, 0.583E-04*"	9.34	54.29	68			initial age disturbed by later metamorphism		K=7.89% AND 7.62% BY ISOTOPE DILUTION	
5494	1	488.83	15	biotite	conventional K-Ar	L-446B	"4.72E-04, 0.583E-04*"	8.76	70.81	9598			initial age disturbed by later metamorphism		RADIOGENIC 40AR=0.282 AND 0.284 PPM	
5494	2	462.39	14	hornblende	conventional K-Ar	L-446H	"4.72E-04, 0.583E-04*"	4.32	32.78	97			initial age disturbed by later metamorphism		POTASSIUM CONTENT SEEMS HIGH FOR HORNBLENDE; POTASSIUM DETERMINED BY ISOTOPE DILUTION	
5495	1	386.31	11	biotite	conventional K-Ar	L-566B	"4.72E-04, 0.583E-04*"	9.4	58.3	98			initial age disturbed by later metamorphism			
5496	1	379.64	15	muscovite	conventional K-Ar	L-452M	"4.72E-04, 0.583E-04*"	10.2	62.05	93			minimum age of intrusion			"A K-AR AGE OF 371 M.Y. WAS REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606)"
5497	1	869.86	34	biotite	conventional K-Ar	L-213B	"4.72E-04, 0.583E-04*"	8.01	128.9	97			minimum age of intrusion			
5498	1	818.86	32	biotite	conventional K-Ar	L-60B	"4.72E-04, 0.583E-04*"	8.72	130.1	97			age of metamorphic crystallization			
5499	1	809.07	32	biotite	conventional K-Ar	L-439B	"4.72E-04, 0.583E-04*"	7.13	104.8	96			age of metamorphic crystallization		K=5.83% AND 5.99% BY ISOTOPE DILUTION	
5500	1	456.6	18	biotite	conventional K-Ar	L-422B	"4.72E-04, 0.583E-04*"	8.93	66.8	92			initial age disturbed by later metamorphism			
5501	1	699.69	28	biotite	conventional K-Ar	L-438B	"4.72E-04, 0.583E-04*"	8.76	107.8	95			initial age disturbed by later metamorphism			
5502	1	433.87	14	biotite	conventional K-Ar	L-437B	"4.72E-04, 0.583E-04*"	8.61	60.8	8896			initial age disturbed by later metamorphism		RADIOGENIC 40AR=0.241 AND 0.245 PPM	
5503	1	388.93	11	muscovite	conventional K-Ar	L-443M	"4.72E-04, 0.583E-04*"	9.93	62.05	84			initial age disturbed by later metamorphism			
5504	1	414.67	12	biotite	conventional K-Ar	L-445B	"4.72E-04, 0.583E-04*"	9.58	64.3	96			initial age disturbed by later metamorphism			
5505	1	440.37	13	biotite	conventional K-Ar	L-489B	"4.72E-04, 0.583E-04*"	8.85	63.55	99			minimum age of intrusion			
5506	1	860.52	34	biotite	conventional K-Ar	L-40B	"4.72E-04, 0.583E-04*"	8.97	142.4	98			minimum age of intrusion			
5507	1	876.85	35	biotite	conventional K-Ar	L-450B	"4.72E-04, 0.583E-04*"	5.71	92.82	96			age of metamorphic crystallization			
5508	1	366.44	14	biotite	conventional K-Ar	L-49B	"4.72E-04, 0.583E-04*"	9.58	56.04	93			initial age disturbed by later metamorphism			
5509	1	751.59	22	biotite	conventional K-Ar	L-436B	"4.72E-04, 0.583E-04*"	8.91	119.6	95			initial age disturbed by later metamorphism			
5510	1	741.93	22	biotite	conventional K-Ar	L-434B	"4.72E-04, 0.583E-04*"	8.84	116.8	94			initial age disturbed by later metamorphism			
5511	1	849.98	34	biotite	conventional K-Ar	L-43B	"4.72E-04, 0.583E-04*"	8.79	137.4	97			minimum age of intrusion			
5512	1	794.24	24	biotite	conventional K-Ar	L-442B	"4.72E-04, 0.583E-04*"	9.3	133.6	96			initial age disturbed by later metamorphism			
5513	1	398.28	15	biotite	conventional K-Ar	L-421B	"4.72E-04, 0.583E-04*"	9.32	59.8	93			initial age disturbed by later metamorphism		K=7.53% AND 7.95% BY ISOTOPE DILUTION	
5514	1	362.93	11	biotite	conventional K-Ar	L-444B	"4.72E-04, 0.583E-04*"	9.38	54.29	9592			initial age disturbed by later metamorphism		DUPLICATE ARGON DETERMINATION	
5515	1	775.14	24	biotite	conventional K-Ar	L-234B	"4.72E-04, 0.583E-04*"	6.91	96.33	9994			minimum age of intrusion		RADIOGENIC 40AR=0.388 AND 0.382 PPM	
5516	1	359.46	14	phlogopite	conventional K-Ar	L-196P	"4.72E-04, 0.583E-04*"	9	51.54	96			initial age disturbed by later metamorphism		POTASSIUM DETERMINED BY ISOTOPE DILUTION	"A K-AR AGE OF 325 M.Y. REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606).  POTASSIUM REDETERMINED FOR ABOVE CALCULATED AGE"
5517	1	377.66	15	biotite	conventional K-Ar	L-451B	"4.72E-04, 0.583E-04*"	9.35	56.55	93			minimum age of intrusion			"A K-AR AGE OF 368 M.Y. WAS REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606)"
5518	1	409.13	16	biotite	conventional K-Ar	L-453B	"4.72E-04, 0.583E-04*"	8.06	53.29	92			initial age disturbed by later metamorphism			"A K-AR AGE OF 400 M.Y. WAS REPORTED FOR THIS SAME SAMPLE BY LONG AND KULP (GSA, V. 69, 1958, P. 603-606)"
5519	1	359.65	14	muscovite	conventional K-Ar	L-205M	"4.72E-04, 0.583E-04*"	9.3	53.29	95			initial age disturbed by later metamorphism			
5520	1	829.61	25	biotite	conventional K-Ar	L-542B	"4.72E-04, 0.583E-04*"	8.83	133.9	89			age of metamorphic crystallization		POTASSIUM DETERMINED BY ISOTOPE DILUTION	
5521	1	1874.18		biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.21	436.8	100			initial age disturbed by later metamorphism	HIGH PURITY MINERAL SEPARATE		
5521	2	1955		hornblende	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.912	46.32	99			age of later metamorphism	HIGH PURITY MINERAL SEPARATE		
5522	1	1627.2		biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	9.01	342.7	99			"age of later metamorphism, initial age disturbed by later metamorphism"	HIGH PURITY MINERAL SEPARATE		
5522	2	1730.3		hornblende	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	1.55	64.79	99			initial age disturbed by later metamorphism	HIGH PURITY MINERAL SEPARATE		
5523	1	1787.63		biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.55	376.1	100			initial age disturbed by later metamorphism	HIGH PURITY MINERAL SEPARATE		
5524	1	2062.35		biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	8.57	475.6	98			initial age disturbed by later metamorphism	HIGH PURITY MINERAL SEPARATE		THERE MAY BE EXCESS RADIOGENIC ARGON-40 PRESENT
5525	1	2415.07		biotite	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	8.81	643.9	99				HIGH PURITY MINERAL SEPARATE		THE AGE MAY BE THE RESULT OF EXCESS RADIOGENIC AR-40 IN THE BIOTITE
5526	1	2415.52		biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	8.74	639	99				HIGH PURITY MINERAL SEPARATE		BIOTITE AGE IS OLDER THAN HORNBLENDE AGE BECAUSE OF EXCESS RADIOGENIC ARGON IN THE BIOTITE
5526	2	2034.59		biotite	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	1.51	81.92	99			initial age disturbed by later metamorphism	HIGH PURITY MINERAL SEPARATE		
5527	1	2562.78		biotite	conventional K-Ar	7A	"4.72E-04, 0.585E-04, 1.19E-04*"	7.47	609.1	99						BIOTITE AGE IS OLDER THAN HORNBLENDE AGE BECAUSE OF EXCESS RADIOGENIC ARGON IN THE BIOTITE
5527	2	1907.12		hornblende	conventional K-Ar	7A	"4.72E-04, 0.585E-04, 1.19E-04*"	1.63	79.51	99			"age of later metamorphism, initial age disturbed by later metamorphism"			
5528	1	2764.75		biotite	conventional K-Ar	7B	"4.72E-04, 0.585E-04, 1.19E-04*"	5.31	500.6	99				HORNBLENDE AND CHLORITE ALSO PRESENT IN BIOTITE CONCENTRATE		BIOTITE AGE IS OLDER THAN HORNBLENDE AGE BECAUSE OF EXCESS RADIOGENIC ARGON IN THE BIOTITE
5528	2	1881.12		hornblende	conventional K-Ar	7B	"4.72E-04, 0.585E-04, 1.19E-04*"	1.17	55.82	99			age of later metamorphism			
5529	1	2535.2		biotite	conventional K-Ar	7C	"4.72E-04, 0.585E-04, 1.19E-04*"	7.65	611.3	100						BIOTITE AGE IS OLDER THAN HORNBLENDE AGE BECAUSE OF EXCESS RADIOGENIC ARGON IN THE BIOTITE
5529	2	1855.62	100	hornblende	conventional K-Ar	7C	"4.72E-04, 0.585E-04, 1.19E-04*"	1.54	71.88	98			age of later metamorphism			
5530	1	2824.89		biotite	conventional K-Ar	7D	"4.72E-04, 0.585E-04, 1.19E-04*"	5.58	548.8	99				HORNBLENDE AND CHLORITE PRESENT IN THE BIOTITE CONCENTRATE		BIOTITE AGE IS OLDER THAN HORNBLENDE AGE BECAUSE OF EXCESS RADIOGENIC ARGON IN THE BIOTITE
5530	2	2279.61		hornblende	conventional K-Ar	7D	"4.72E-04, 0.585E-04, 1.19E-04*"	0.819	53.99	98			initial age disturbed by later metamorphism			
5531	1	2723.1		biotite	conventional K-Ar	7E	"4.72E-04, 0.585E-04, 1.19E-04*"	7.97	729.5	100						BIOTITE AGE IS OLDER THAN HORNBLENDE AGE BECAUSE OF EXCESS RADIOGENIC ARGON IN THE BIOTITE
5531	2	2043.15		hornblende	conventional K-Ar	7E	"4.72E-04, 0.585E-04, 1.19E-04*"	1.31	71.57	96			age of later metamorphism			
5532	1	2815.66		biotite	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	7.84	766.1	99				HIGH PURITY MINERAL SEPARATE		BIOTITE AGE IS OLDER THAN HORNBLENDE AGE BECAUSE OF EXCESS RADIOGENIC ARGON IN THE BIOTITE
5532	2	1879.94		hornblende	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	1.334	63.58	99			"age of later metamorphism, initial age disturbed by later metamorphism"	HIGH PURITY MINERAL SEPARATE		
5533	1	2977.07		biotite	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.92	974.9	99			"sample contains excess radiogenic argon, age is too old"	HIGH PURITY MINERAL SEPARATE		
5534	1	3228.06		biotite	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.14	1054	99			"sample contains excess radiogenic argon, age is too old"	HIGH PURITY MINERAL SEPARATE		
5534	2	3181.85		biotite	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.14	1022	100			"sample contains excess radiogenic argon, age is too old"	HIGH PURITY MINERAL SEPARATE		
5535	1	1864.38		hornblende	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	1.353	63.63	98			"age of later metamorphism, initial age disturbed by later metamorphism"	HIGH PURITY MINERAL SEPARATE		
5536	1	1723.03		biotite	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	9.95	413.2	99			initial age disturbed by later metamorphism	HIGH PURITY MINERAL SEPARATE		
5537	1	1415.96	30	biotite	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.18E-04*"	7.58	234.7	95			minimum age of intrusion	PURITY GREATER THAN 99%		
5538	1	1607.34	30	biotite	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.18E-04*"	8.33	311	99			"age of later metamorphism, initial age disturbed by later metamorphism"	PURITY GREATER THAN 99%		
5539	1	1352.55	150	biotite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.18E-04*"	8.37	242.7	98			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		
5540	1	1657.46	35	biotite	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.18E-04*"	8.28	323.9	100			age of intrusion	PURITY GREATER THAN 99%		
5541	1	1602.23	30	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.18E-04*"	8.79	326.6	88			"age of later metamorphism, initial age disturbed by later metamorphism"			
5541	2	1619.7	30	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.18E-04*"	8.79	332	81			"age of later metamorphism, initial age disturbed by later metamorphism"			
5541	3	1683.88	35	muscovite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.18E-04*"	8.93	357.9	98			initial age disturbed by later metamorphism			
5542	1	1500	30	biotite	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.18E-04*"	7.77	261.5	99			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		
5544	1	1662.32	35	muscovite	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.18E-04*"	9.63	378.4	96			age of later metamorphism	PURITY GREATER THAN 99%		
5545	1	1720.43	35	biotite	conventional K-Ar	9	"4.72E-04, 0.584E-04, 1.18E-04*"	8.25	341.8	99			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		
5546	1	1522.14	30	biotite	conventional K-Ar	10	"4.72E-04, 0.584E-04, 1.18E-04*"	7.43	255.7	97			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		
5547	1	1612.04	30	muscovite	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.18E-04*"	9.28	348	99			"age of later metamorphism, initial age disturbed by later metamorphism"	PURITY GREATER THAN 99%		
5548	1	1555.16	30	biotite	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.18E-04*"	7.36	261.5	88			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		
5549	1	1728.6	35	biotite	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.18E-04*"	7.89	329.3	99			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		
5550	1	1686.37	35	biotite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.18E-04*"	8.83	354.7	85			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		
5551	1	1787.63	35	biotite	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.18E-04*"	8.55	376.1	100			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		
5552	1	3181.85	65	biotite	conventional K-Ar	16	"4.72E-04, 0.584E-04, 1.18E-04*"	8.14	1022	100			age of metamorphic crystallization	PURITY GREATER THAN 99%		
5552	2	3228.06	65	biotite	conventional K-Ar	16	"4.72E-04, 0.584E-04, 1.18E-04*"	8.14	1054	100			age of metamorphic crystallization	PURITY GREATER THAN 99%		
5553	1	2597.61	50	biotite	conventional K-Ar	17	"4.72E-04, 0.584E-04, 1.18E-04*"	8.28	692.5	99				PURITY GREATER THAN 99%		THIS AGE MAY BE A PRIMARY METAMORPHIC AGE OR REDUCED AGE
5554	1	1557.83	30	biotite	conventional K-Ar	18	"4.72E-04, 0.584E-04, 1.18E-04*"	8.13	289.6	100			"age of later metamorphism, initial age disturbed by later metamorphism"	PURITY GREATER THAN 99%		
5555	1	2111.36	40	biotite	conventional K-Ar	19	"4.72E-04, 0.584E-04, 1.18E-04*"	7.52	434.2	100			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		
5556	1	2413.27	50	biotite	conventional K-Ar	20	"4.72E-04, 0.584E-04, 1.18E-04*"	8.13	593.4	99				PURITY GREATER THAN 99%		THIS AGE MAY BE A PRIMARY METAMORPHIC AGE OR A REDUCED AGE
5556	2	2386.16	50	biotite	conventional K-Ar	20	"4.72E-04, 0.584E-04, 1.18E-04*"	8.13	581.4	100				PURITY GREATER THAN 99%		THIS AGE MAY BE A PRIMARY METAMORPHIC AGE OR A REDUCED AGE
5557	1	177.04	4	muscovite	conventional K-Ar	21	"4.72E-04, 0.584E-04, 1.18E-04*"	9.63	25.79	92			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		AGE PROBABLY DISTURBED BY INTRUSION OF BOULDER BATHOLITH
5558	1	76.39	2	biotite	conventional K-Ar	22	"4.72E-04, 0.584E-04, 1.18E-04*"	7.94	8.92	87			initial age disturbed by later metamorphism	PURITY GREATER THAN 99%		AGE PROBABLY DISTURBED BY INTRUSION OF BOULDER BATHOLITH
5560	1	76.47	2	biotite	conventional K-Ar	24	"4.72E-04, 0.584E-04, 1.18E-04*"	7.3	8.21	87			age of intrusion	PURITY GREATER THAN 99%		
5561	1	53.7	2	biotite	conventional K-Ar	25	"4.72E-04, 0.584E-04, 1.18E-04*"	8.13	6.38	29			age meaning uncertain (geologic factors)	PURITY GREATER THAN 99%		AGE MAY REPRESENT A LATE PHASE OF INTRUSION OF THE TOBACCO ROOT BATHOLITH
5565	1	305.77	12	biotite	conventional K-Ar	BRE-1	"4.72E-04, 0.584E-04, 1.19E-04*"	6.46	30.99	96			initial age disturbed by later metamorphism			COOLING AGE
5566	1	317.29	11	biotite	conventional K-Ar	BRE-2	"4.72E-04, 0.584E-04, 1.19E-04*"	8.9	44.45	96			initial age disturbed by later metamorphism			COOLING AGE
5567	1	300.64	11	biotite	conventional K-Ar	BRE-3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.1	33.44	96			initial age disturbed by later metamorphism			COOLING AGE
5568	1	283.67	10	whole rock	conventional K-Ar	BRE-4	"4.72E-04, 0.584E-04, 1.19E-04*"	4.78	21.14	96			initial age disturbed by later metamorphism			
5569	1	324.31	11	whole rock	conventional K-Ar	BRE-5	"4.72E-04, 0.584E-04, 1.19E-04*"	3.13	16.01	92			initial age disturbed by later metamorphism			
5570	1	312.96	10	biotite	conventional K-Ar	BRE-6	"4.72E-04, 0.584E-04, 1.19E-04*"	6.76	33.26	96			initial age disturbed by later metamorphism			COOLING AGE
5570	2	302.51	10	muscovite	conventional K-Ar	BRE-6	"4.72E-04, 0.584E-04, 1.19E-04*"	5.15	24.42	94			initial age disturbed by later metamorphism	IMPURE MUSCOVITE(?)--COMPILER		COOLING AGE
5571	1	319.52	12	biotite	conventional K-Ar	BRE-7	"4.72E-04, 0.584E-04, 1.19E-04*"	7.36	37.04	97			initial age disturbed by later metamorphism			COOLING AGE
5571	2	345.07	11	muscovite	conventional K-Ar	BRE-7	"4.72E-04, 0.584E-04, 1.19E-04*"	5.37	29.4	95			"minimum age of metamorphic crystallization, initial age disturbed by later metamorphism"	IMPURE MUSCOVITE(?)--COMPILER		COOLING AGE
5572	1	300.07	11	biotite	conventional K-Ar	BRE-8	"4.72E-04, 0.584E-04, 1.19E-04*"	7.57	35.58	96			initial age disturbed by later metamorphism			COOLING AGE
5572	2	316.2	10	muscovite	conventional K-Ar	BRE-8	"4.72E-04, 0.584E-04, 1.19E-04*"	8.62	42.89	97			initial age disturbed by later metamorphism			COOLING AGE
5573	1	324.13	11	biotite	conventional K-Ar	BRE-9	"4.72E-04, 0.584E-04, 1.19E-04*"	7.05	36.04	97			initial age disturbed by later metamorphism			COOLING AGE
5573	2	323.27	11	muscovite	conventional K-Ar	BRE-9	"4.72E-04, 0.584E-04, 1.19E-04*"	9.27	47.25	97			initial age disturbed by later metamorphism			COOLING AGE
5574	1	314.27	10	biotite	conventional K-Ar	BRE-10	"4.72E-04, 0.584E-04, 1.19E-04*"	8.7	43	98			initial age disturbed by later metamorphism			COOLING AGE
5575	1	409.51	14	biotite	conventional K-Ar	MRN-1	"4.72E-04, 0.584E-04, 1.19E-04*"	5.82	38.52	97			initial age disturbed by later metamorphism			COOLING AGE; ALSO MINIMUM AGE FOR SECOND PERIOD OF METAMORPHISM
5575	2	318.79	11	muscovite	conventional K-Ar	MRN-1	"4.72E-04, 0.584E-04, 1.19E-04*"	5.45	27.36	97			initial age disturbed by later metamorphism			COOLING AGE
5576	1	406.89	15	biotite	conventional K-Ar	MRN-2	"4.72E-04, 0.584E-04, 1.19E-04*"	6.18	40.61	97			initial age disturbed by later metamorphism			COOLING AGE; ALSO MINIMUM AGE FOR SECOND PERIOD OF METAMORPHISM
5577	1	259.51	8	biotite	conventional K-Ar	MRN-3	"4.72E-04, 0.584E-04, 1.19E-04*"	4.94	19.85	88			initial age disturbed by later metamorphism			COOLING AGE
5577	2	293.99	9	muscovite	conventional K-Ar	MRN-3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.42	34.11	98			initial age disturbed by later metamorphism			COOLING AGE
5578	1	320.73	10	muscovite	conventional K-Ar	MRN-4	"4.72E-04, 0.584E-04, 1.19E-04*"	9.74	49.22	98			initial age disturbed by later metamorphism			COOLING AGE
5579	1	296.86	10	muscovite	conventional K-Ar	MRN-5	"4.72E-04, 0.584E-04, 1.19E-04*"	7.76	36.05	97			initial age disturbed by later metamorphism			COOLING AGE
5580	1	335.96	12	muscovite	conventional K-Ar	MRN-6	"4.72E-04, 0.584E-04, 1.19E-04*"	4.93	26.21	97			initial age disturbed by later metamorphism	IMPURE MUSCOVITE		COOLING AGE
5581	1	397.59	17	hornblende	conventional K-Ar	MRN-7	"4.72E-04, 0.584E-04, 1.19E-04*"	0.52	3.33	90			initial age disturbed by later metamorphism			COOLING AGE; ALSO MINIMUM AGE FOR SECOND PERIOD OF METAMORPHISM
5582	1	297.01	10	biotite	conventional K-Ar	MRN-8	"4.72E-04, 0.584E-04, 1.19E-04*"	5.6	26.03	96			initial age disturbed by later metamorphism			COOLING AGE
5583	1	324.57	11	biotite	conventional K-Ar	MRN-9	"4.72E-04, 0.584E-04, 1.19E-04*"	5.77	29.54	97			initial age disturbed by later metamorphism			COOLING AGE
5583	2	332.48	13	muscovite	conventional K-Ar	MRN-9	"4.72E-04, 0.584E-04, 1.19E-04*"	1.64	8.62	91			initial age disturbed by later metamorphism	IMPURE MUSCOVITE		COOLING AGE
5584	1	1082.43	21	biotite	conventional K-Ar	LNR-1	"4.72E-04, 0.584E-04, 1.19E-04*"	3.12	66.62	98				LOW POTASSIUM CONTENT SUGGESTS IMPURE BIOTITE		AGE IS ANOMOLOUSLY OLD
5584	2	1075.7	20	biotite	conventional K-Ar	LNR-1	"4.72E-04, 0.584E-04, 1.19E-04*"	3.12	66.07	97				LOW POTASSIUM CONTENT SUGGESTS IMPURE BIOTITE		AGE IS ANOMOLOUSLY OLD
5585	1	336.67	12	biotite	conventional K-Ar	LNR-2	"4.72E-04, 0.584E-04, 1.19E-04*"	6.51	34.69	94			initial age disturbed by later metamorphism			COOLING AGE
5586	1	396.24	14	biotite	conventional K-Ar	LNR-3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.98	50.91	98			initial age disturbed by later metamorphism			COOLING AGE; ALSO MINIMUM AGE FOR SECOND PERIOD OF METAMORPHISM
5587	1	355.07	11	biotite	conventional K-Ar	LNR-4	"4.72E-04, 0.584E-04, 1.19E-04*"	4.71	26.61	95			initial age disturbed by later metamorphism			COOLING AGE
5587	2	316	10	muscovite	conventional K-Ar	LNR-4	"4.72E-04, 0.584E-04, 1.19E-04*"	9	44.75	95			initial age disturbed by later metamorphism			COOLING AGE
5588	1	329.42	12	biotite	conventional K-Ar	LNR-5	"4.72E-04, 0.584E-04, 1.19E-04*"	3.15	16.39	95			initial age disturbed by later metamorphism	LOW POTASSIUM CONTENT SUGGESTS IMPURE BIOTITE		COOLING AGE
5589	1	258.8	9	biotite	conventional K-Ar	LNR-6	"4.72E-04, 0.584E-04, 1.19E-04*"	6.19	24.8	93			initial age disturbed by later metamorphism			COOLING AGE
5589	2	299.83	10	muscovite	conventional K-Ar	LNR-6	"4.72E-04, 0.584E-04, 1.19E-04*"	4.77	22.4	95			initial age disturbed by later metamorphism	IMPURE MUSCOVITE		COOLING AGE
5590	1	309.41	10	biotite	conventional K-Ar	LNR-7	"4.72E-04, 0.584E-04, 1.19E-04*"	7.18	34.89	97			initial age disturbed by later metamorphism			COOLING AGE
5590	2	293.28	9	muscovite	conventional K-Ar	LNR-7	"4.72E-04, 0.584E-04, 1.19E-04*"	6.65	30.49	98			initial age disturbed by later metamorphism			COOLING AGE
5591	1	295.09	10	muscovite	conventional K-Ar	LNR-8	"4.72E-04, 0.584E-04, 1.19E-04*"	6.4	29.54	97			initial age disturbed by later metamorphism			COOLING AGE
5592	1	251.13	8	muscovite	conventional K-Ar	LNR-9	"4.72E-04, 0.584E-04, 1.19E-04*"	5.8	22.5	93			initial age disturbed by later metamorphism			COOLING AGE
5593	1	361.9	12	biotite	conventional K-Ar	PMT-1	"4.72E-04, 0.584E-04, 1.19E-04*"	7.29	42.06	97			initial age disturbed by later metamorphism			COOLING AGE
5594	1	473.75	15	hornblende	conventional K-Ar	PMT-2	"4.72E-04, 0.584E-04, 1.19E-04*"	0.35	2.73	86						APPROXIMATE AGE OF SECOND PERIOD OF METAMORPHISM
5595	1	354.25	12	biotite	conventional K-Ar	PMT-3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.46	42.04	96			initial age disturbed by later metamorphism			COOLING AGE
5595	2	351.52	12	muscovite	conventional K-Ar	PMT-3	"4.72E-04, 0.584E-04, 1.19E-04*"	7.03	39.28	97			initial age disturbed by later metamorphism			COOLING AGE
5596	1	325.6	10	biotite	conventional K-Ar	PMT-4	"4.72E-04, 0.584E-04, 1.19E-04*"	6.63	34.06	93			initial age disturbed by later metamorphism			COOLING AGE
5596	2	335.09	11	muscovite	conventional K-Ar	PTM-4	"4.72E-04, 0.584E-04, 1.19E-04*"	6.77	35.89	96			initial age disturbed by later metamorphism			COOLING AGE
5597	1	291.47	10	biotite	conventional K-Ar	PMT-5	"4.72E-04, 0.584E-04, 1.19E-04*"	8.1	36.89	94			initial age disturbed by later metamorphism			COOLING AGE
5597	2	310.75	13	muscovite	conventional K-Ar	PMT-5	"4.72E-04, 0.584E-04, 1.19E-04*"	9.77	47.7	98			initial age disturbed by later metamorphism			COOLING AGE
5598	1	248.05	9	biotite	conventional K-Ar	PMT-6	"4.72E-04, 0.584E-04, 1.19E-04*"	6.7	25.65	89			initial age disturbed by later metamorphism			COOLING AGE
5598	2	231.8	8	muscovite	conventional K-Ar	PMT-6	"4.72E-04, 0.584E-04, 1.19E-04*"	7.36	26.21	95			initial age disturbed by later metamorphism			COOLING AGE
5599	1	293.08	10	biotite	conventional K-Ar	PMT-7	"4.72E-04, 0.584E-04, 1.19E-04*"	5.95	27.26	92			initial age disturbed by later metamorphism			COOLING AGE
5599	2	293.28	10	muscovite	conventional K-Ar	PMT-7	"4.72E-04, 0.584E-04, 1.19E-04*"	9.83	45.07	98			initial age disturbed by later metamorphism			COOLING AGE
5600	1	298	11	biotite	conventional K-Ar	PMT-8	"4.72E-04, 0.584E-04, 1.19E-04*"	6.77	31.61	95			initial age disturbed by later metamorphism			COOLING AGE
5600	2	222.24	9	muscovite	conventional K-Ar	PMT-8	"4.72E-04, 0.584E-04, 1.19E-04*"	7.16	24.38	94			initial age disturbed by later metamorphism			COOLING AGE
5601	1	340.81	11	biotite	conventional K-Ar	PMT-9	"4.72E-04, 0.584E-04, 1.19E-04*"	6.19	33.43	96			initial age disturbed by later metamorphism			COOLING AGE
5601	2	306.81	10	muscovite	conventional K-Ar	PMT-9	"4.72E-04, 0.584E-04, 1.19E-04*"	3.62	17.43	94			initial age disturbed by later metamorphism	IMPURE MUSCOVITE		COOLING AGE
5622	1	362.52	7	biotite	conventional K-Ar	WELL NO. 7	"4.72E-04, 0.585E-04, 1.19E-04*"	4.939	28.55	95			minimum age of intrusion	RED-BROWN BIOTITE		
5622	2	358.03	7	biotite	conventional K-Ar	WELL NO. 7	"4.72E-04, 0.585E-04, 1.19E-04*"	4.939	28.16	95			minimum age of intrusion	RED-BROWN BIOTITE		
5623	1	261.46	5	muscovite	conventional K-Ar	WELL NO. 3	"4.72E-04, 0.585E-04, 1.19E-04*"	6.478	26.24	91						PROBABLY A COOLING AGE
5623	2	254.49	5	muscovite	conventional K-Ar	WELL NO. 3	"4.72E-04, 0.585E-04, 1.19E-04*"	6.478	25.49	90						PROBABLY A COOLING AGE
5624	1	391.33	8	hornblende	conventional K-Ar	WELL NO. 5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.4161	2.618	87				HORNBLENDE IS ALTERED		PROBABLY A COOLING AGE
5624	2	389.99	8	hornblende	conventional K-Ar	WELL NO. 5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.4161	2.608	82				HORNBLENDE IS ALTERED		PROBABLY A COOLING AGE
5678	1	340.94	17	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.68	52.3	97				0.5 -2 MM GRAIN SIZE		A COOLING AGE
5679	1	353.92	17	biotite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	8.26	46.5	98				0.5 -2 MM GRAIN SIZE		A COOLING AGE
5680	1	441.98	22	biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	8.46	61	97				5 MM GRAIN SIZE		POSSIBLY A MINIMUM AGE FOR TIME OF MINERALIZATION
5681	1	473.35	24	biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	6.07	47.3	98				5 MM GRAIN SIZE		POSSIBLE TIME OF MINERALIZATION
5682	1	1137.61	56	hornblende	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.124	2.83	90				2 CM LONG		THIS AGE APPEARS TO BE TOO OLD; PROBABLY EXCESS ARGON PRESENT
5683	1	329.26		biotite	conventional K-Ar	M-51	"4.72E-04, 0.585E-04, 1.19E-04*"	9.48	49.3				initial age disturbed by later metamorphism			A COOLNG AGE
5685	1	678.49		biotite	conventional K-Ar	G-19	"4.72E-04, 0.585E-04, 1.19E-04*"	8.77	104				initial age disturbed by later metamorphism			
5690	1	349.6		muscovite	conventional K-Ar	K-78M	"4.72E-04, 0.584E-04, 1.19E-04*"	8.25	45.82				initial age disturbed by later metamorphism			PROBABLY A COOLING AGE
5691	1	364.64		biotite	conventional K-Ar	K-84B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.62	50.15				initial age disturbed by later metamorphism			PROBABLY A COOLING AGE
5692	1	388.36		biotite	conventional K-Ar	K-86B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.71	48.1				initial age disturbed by later metamorphism			PROBABLY A COOLING AGE
5693	1	378.33		biotite	conventional K-Ar	K-11B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.15	49.39				initial age disturbed by later metamorphism			PROBABLY A COOLING AGE
5694	1	311.86		biotite	conventional K-Ar	K-23B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.1	39.7				initial age disturbed by later metamorphism			PROBABLY A COOLING AGE
5695	1	242.21		biotite	conventional K-Ar	K-101B	"4.72E-04, 0.584E-04, 1.19E-04*"	9.03	33.7				minimum age of intrusion			INITIAL AGE MAY HAVE BEEN DISTURBED BY LATER METAMORPHISM--COMPILER
5696	1	263.49		biotite	conventional K-Ar	K-106B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.1	29				minimum age of intrusion			INITIAL AGE MAY HAVE BEEN DISTURBED BY LATER METAMORPHISM--COMPILER
5718	1	421	15	hornblende	39Ar-40Ar total fusion	DA-B36-73	"4.72E-04, 0.585E-04, 1.19E-04"						"age of uplift and cooling, initial age disturbed by later metamorphism"		40-39AR TOTAL GAS AGE; TWO SIGMA ERROR	
5718	2	343	15	biotite		DA-B36-73	"4.72E-04, 0.585E-04, 1.19E-04"						"age of uplift and cooling, initial age disturbed by later metamorphism"		40-39AR TOTAL GAS AGE; TWO SIGMA ERROR	CONVENTIONAL K-AR AGE IS 352 M.Y.
5718	3	361.21	10	biotite	conventional K-Ar	DA-B36-73	"4.72E-04, 0.585E-04, 1.19E-04*"	9.471	54.53	83			"age of uplift and cooling, initial age disturbed by later metamorphism"			40-39AR TOTAL GAS AGE IS 343 M.Y.
5719	1	343	15	biotite	39Ar-40Ar total fusion	DA-B37-73	"4.72E-04, 0.585E-04, 1.19E-04"						"age of uplift and cooling, initial age disturbed by later metamorphism"		40-39AR TOTAL GAS AGE; TWO SIGMA ERROR	
5720	1	415	15	hornblende	39Ar-40Ar total fusion	DA-B40-73	"4.72E-04, 0.585E-04, 1.19E-04"						"age of uplift and cooling, initial age disturbed by later metamorphism"		40-39AR TOTAL GAS AGE; TWO SIGMA ERROR	CONVENTIONAL K-AR AGE IS 419 M.Y.
5720	2	427.22	12	hornblende	conventional K-Ar	DA-B40-73	"4.72E-04, 0.585E-04, 1.19E-04*"	1.915	13.29	43			"age of uplift and cooling, initial age disturbed by later metamorphism"			40-39AR TOTAL GAS AGE IS 415 M.Y.
5720	3	350	15	biotite	39Ar-40Ar total fusion	DA-B40-73	"4.72E-04, 0.585E-04, 1.19E-04"						"age of uplift and cooling, initial age disturbed by later metamorphism"		40-39AR TOTAL GAS AGE; TWO SIGMA ERROR	
5774	1	414.32	16	biotite	conventional K-Ar	L-58B	"4.72E-04, 0.583E-04*"	8.32	55.79	96			initial age disturbed by later metamorphism			
5775	1	362.12	14	muscovite	conventional K-Ar	L-59	"4.72E-04, 0.583E-04*"	9.49	54.79	96			minimum age of intrusion			
5825	1	63.76	1.2	muscovite	conventional K-Ar	1. YU-PZ(A346)	"4.72E-04, 0.585E-04, 1.19E-04*"	10	9.343	83			minimum age of intrusion		K=8.29% AND 8.32%	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 35, ENTRY NO. 14"
5826	1	67.45	2	muscovite	conventional K-Ar	2. G-M1416(A384)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.834	9.73	7074			age of intrusion	99% PURE	K=8.130% AND 8.197%; 40AR(RAD)=0.0374 AND 0.0404 PPM	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 34, ENTRY NO. 13"
5827	1	68.55	1.3	muscovite	conventional K-Ar	3. YU-PZ(A56)	"4.72E-04, 0.585E-04, 1.19E-04*"	10.15	10.21	79			age of intrusion			"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 34, ENTRY NO. 12"
5828	1	28.29	0.5	whole rock	conventional K-Ar	4. YU-PZ(A326)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.24	1.33	68					K=2.71% AND 2.67%	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 30, ENTRY NO. 8. ARMSTRONG BELIEVES INITIAL AGE IS MUCH OLDER THAN K-AR AGE"
5828	2	26.39	0.5	whole rock	conventional K-Ar	4. YU-PZ(A326)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.24	1.24	67						AGE MAY BE TOO YOUNG; ROCK INTENSELY ALTERED
5829	1	17.15	4.3	whole rock	conventional K-Ar	5. YU-PZ(A350)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.532	0.132	4			minimum age of volcanism		K=0.437% AND 0.446%	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 9, ENTRY NO. 7"
5829	2	13.14	5.3	whole rock	conventional K-Ar	5. YU-PZ(A350)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.532	0.101	2					K=0.437% AND 0.446%	AGE IS TOO YOUNG
5829	3	13.4	5.2	whole rock	conventional K-Ar	5. YU-PZ(A350)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.532	0.103	2					K=0.437% AND 0.446%	AGE IS TOO YOUNG
5830	1	19.71	0.3	biotite	conventional K-Ar	6. YU-PZ(A34)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.29	2.08	61					K=6.06% AND 6.04%	"AGE IS APPARENTLY TOO OLD IN COMPARISON TO OTHER K-AR AGES ON SAME RHYOLITE UNIT. SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 9, ENTRY NO. 6"
5830	2	17.73	0.5	biotite	conventional K-Ar	6. YU-PZ(A34)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.29	1.87	40					K=6.06% AND 6.04%	AGE IS APPARENTLY TOO OLD IN COMPARISON TO OTHER K-AR AGES ON SAME RHYOLITE UNIT
5830	3	17.73	0.3	biotite	conventional K-Ar	6. YU-PZ(A34)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.29	1.87	52					K=6.06% AND 6.04%	AGE IS APPARENTLY TOO OLD IN COMPARISON TO OTHER K-AR AGES ON SAME RHYOLITE UNIT
5831	1	15.34	0.3	whole rock	conventional K-Ar	7. YU-PZ(A45)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.87	1.08	87			minimum age of volcanism		"LISTED 3.89 AND 3.87% K SHOULD BE 4.09% AND 3.99% K (COMPILER--SEE ARMSTRONG, 1975)"	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 9, ENTRY NO. 5"
5831	2	17.32	0.3	whole rock		7. YU-PZ(A45)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.67	1.17	65			maximum age of volcanism		K=3.89% AND 3.87%	
5832	1	15.99	0.3	whole rock	conventional K-Ar	8. YU-PZ(A26)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.67	1.08	81			age of volcanism		K=3.89% AND 3.87%	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 9, ENTRY NO. 3"
5832	2	16.14	0.3	whole rock	conventional K-Ar	8. YU-PZ(A26)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.67	1.09	89			age of volcanism		K=3.89% AND 3.87%	
5833	1	16.1	0.3	biotite	conventional K-Ar	9. YU-PZ(A345)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.16	1.9	61			age of volcanism		K=6.73% AND 6.81%	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 9, ENTRY NO. 2"
5833	2	16.35	0.3	biotite	conventional K-Ar	9. YU-PZ(A345)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.16	1.93	61			age of volcanism		K=6.73% AND 6.81%	
5834	1	15.96	0.3	sanidine	conventional K-Ar	10. YU-PZ(A98)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	2.04	84			age of volcanism		K=7.32 AND 7.36%	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 9, ENTRY NO. 2"
5835	1	16.16	0.3	sanidine	conventional K-Ar	11. YU-PZ(A325)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.05	1.18	63			age of volcanism		K=4.21% AND 4.18%	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 9, ENTRY NO. 1"
5836	1	15.56	0.3	adularia	conventional K-Ar	12. YU-PZ(A43)	"4.72E-04, 0.585E-04, 1.19E-04*"	15.11	3.4	61					K=12.48% AND 12.61%	"AGE OF MINERALIZATION.  SAMPLE LISTED BY ARMSTRONG, 1975, NO. 14, P. 9, ENTRY NO. 9"
5836	2	15.56	0.3	adularia	conventional K-Ar	12. YU-PZ(A43)	"4.72E-04, 0.585E-04, 1.19E-04*"	15.11	3.4	73					K=12.48% AND 12.61%	AGE OF MINERALIZATION
5837	1	15.26	0.6	adularia	conventional K-Ar	13. G-F1415(A383)	"4.72E-04, 0.585E-04, 1.19E-04*"	13.6	3	5869					"K=11.269, 11.323%; 40AR(RAD)=0.0119 AND 0.0121 PPM"	"AGE OF MINERALIZATION; SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 9, ENTRY NO. 8"
5838	1	0.53	0.5	whole rock	conventional K-Ar	69-52L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.762	0.0059	0			age of volcanism		"K=0.628 AND 0.637%; 40AR(RAD)=0.0103 AND 0.0159XE-6 CC/GM; ANALYTICAL DATA FROM ARMSTRONG (1975, ISOCHRON/WEST)"	
5839	1	0.55	0.08	whole rock	conventional K-Ar	69-53L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.61	0.0048	54			age of volcanism		"K=0.511 AND 0.502%; 40AR(RAD)=0.0110 AND 0.0107XE-6 CC/GM; ANALYTICAL DATA FROM ARMSTRONG (1975, ISOCHRON/WEST)"	
5840	1	0.85	0.5	whole rock	conventional K-Ar	69-39L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.616	0.0075	11			age of volcanism		"K=0.516 AND 0.506%; 40AR(RAD)=0.0153 AND 0.0185XE-6 CC/GM; ANALYTICAL DATA FROM ARMSTRONG (1975, ISOCHRON/WEST)"	
5841	1	1.74	0.4	whole rock	conventional K-Ar	70-7L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.92	0.023	14			age of volcanism		"K=0.770 AND 0.758%; 40AR(RAD)=0.0487 AND 0.0543XE-6 CC/GM; ANALYTICAL DATA FROM ARMSTRONG (1975, ISOCHRON/WEST)"	
5842	1	2.57	0.05	whole rock	conventional K-Ar	69-61L	"4.72E-04, 0.584E-04, 1.19E-04*"	2.42	0.0897	3138					"K=2.03 AND 2.00%; 40AR(RAD)=0.204 AND 0.199XE-6 CC/GM; ANALYTICAL DATA FROM ARMSTRONG (1975, ISOCHRON/WEST)"	"AGE IS ANOMALOUSLY OLD, PERHAPS DUE TO EXCESS RADIOGENIC ARGON"
5843	1	0.56	0.04	Unk	conventional K-Ar	21(A)	"4.72E-04, 0.584E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
5844	1	11.6	1.4	glass	conventional K-Ar	A	no decay constants given						minimum age of volcanism		NO ANALYTICAL DATA GIVEN	
5845	1			whole rock		R13	no decay constants given	0.67							"3 DETERMINATIONS OF ARGON-40 WERE INCONCLUSIVE.  SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 44) FOR K VALUE"	ROCK THOUGHT TO BE LESS THAN 1.0 M.Y. OLD
5846	1			whole rock		R12	no decay constants given	0.51							"3 DETERMINATIONS OF ARGON-40 WERE INCONCLUSIVE.  SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 45) FOR K VALUE"	ROCK THOUGHT TO BE LESS THAN 1.2 M.Y. OLD
5847	1			whole rock		R11	no decay constants given	0.71							"3 DETERMINATIONS OF ARGON-40 WERE INCONCLUSIVE.  SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 46) FOR K VALUE"	ROCK THOUGHT TO BE LESS THAN 1.5 M.Y. OLD
5848	1	3.6	0.2	whole rock	conventional K-Ar	R6	"4.72E-04, 0.585E-04, 1.19E-04*"	0.86	0.0446	5			maximum age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 47) FOR ANALYTICAL DATA"	ARMSTRONG AND OTHERS (1975) OBTAINED 0.30 M.Y. FOR THE SAME UNIT
5849	1	0.92	0.8	whole rock	conventional K-Ar	R14	"4.72E-04, 0.585E-04, 1.19E-04*"	3.35	0.0446	3			age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 48) FOR ANALYTICAL DATA"	
5850	1	1.09	0.4	whole rock	conventional K-Ar	R9	"4.72E-04, 0.585E-04, 1.19E-04*"	4.45	0.0696	8			maximum age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 49) FOR ANALYTICAL DATA"	ARMSTRONG AND OTHERS (1975) OBTAINED 0.6 M.Y. FOR THIS SAME UNIT
5851	1	1.15	0.6	whole rock	conventional K-Ar	R4	"4.72E-04, 0.585E-04, 1.19E-04*"	0.81	0.0134	4			age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 50) FOR ANALYTICAL DATA"	
5852	1	1.8	0.8	whole rock	conventional K-Ar	R3	"4.72E-04, 0.585E-04, 1.19E-04*"	0.86	0.0223	5			age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 51) FOR ANALYTICAL DATA"	
5853	1	2.3	0.7	whole rock	conventional K-Ar	R2	"4.72E-04, 0.585E-04, 1.19E-04*"	0.66	0.0223	4			age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 52) FOR ANALYTICAL DATA"	
5854	1	2.87	0.6	whole rock	conventional K-Ar	R1	"4.72E-04, 0.585E-04, 1.19E-04*"	0.67	0.0277	6			age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 20, NO. 53) FOR ANALYTICAL DATA"	
5855	1	3.8	0.4	whole rock	conventional K-Ar	R7	"4.72E-04, 0.585E-04, 1.19E-04*"	0.57	0.0312	6			age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 21, NO. 54) FOR ANALYTICAL DATA"	ARMSTRONG AND OTHERS (1975) OBTAINED AN AGE OF 1.9 M.Y. FOR THE SAME UNIT; THE AGE DISCORDANCY IS NOT UNDERSTOOD
5856	1	3.6	0.7	whole rock	conventional K-Ar	R8	"4.72E-04, 0.585E-04, 1.19E-04*"	0.86	0.0446	3			age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 21, NO. 55) FOR ANALYTICAL DATA"	
5857	1	5.58	0.8	whole rock	conventional K-Ar	R5	"4.72E-04, 0.585E-04, 1.19E-04*"	1.33	0.107	9			age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 21, NO. 56) FOR ANALYTICAL DATA"	
5858	1	8.14	6	whole rock	conventional K-Ar	R10	"4.72E-04, 0.585E-04, 1.19E-04*"	0.52	0.0611	3					"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 21, NO. 57) FOR ANALYTICAL DATA"	AGE IS PROBABLY MUCH TOO YOUNG
5859	1	9.38	1.5	whole rock	conventional K-Ar	R18	"4.72E-04, 0.585E-04, 1.19E-04*"	4.32	0.585	26			minimum age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 21, NO. 58) FOR ANALYTICAL DATA"	
5860	1	16	5	whole rock	conventional K-Ar	R19	"4.72E-04, 0.585E-04, 1.19E-04*"	0.4	0.0937	6			age not evaluated		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 21, NO. 59) FOR ANALYTICAL DATA"	
5861	1	33.38	2	whole rock	conventional K-Ar	R16	"4.72E-04, 0.585E-04, 1.19E-04*"	1.6	0.776	20			age of volcanism		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 26, NO. 4) FOR ANALYTICAL DATA"	
5862	1	26.95	15	whole rock	conventional K-Ar	R15	"4.72E-04, 0.585E-04, 1.19E-04*"	0.33	0.129	3			age not evaluated		"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 26, NO. 5) FOR ANALYTICAL DATA"	
5863	1	75.48	6	whole rock	conventional K-Ar	R17	"4.72E-04, 0.585E-04, 1.19E-04*"	0.41	0.455	14					"SEE ARMSTRONG (ISOCHRON/WEST, 1975, NO. 14, P. 50, NO. 1) FOR ANALYTICAL DATA"	THERE IS CONSIDERABLE QUESTION ABOUT THE MEANING OF THIS AGE; IT IS POSSIBLY TOO OLD
5864	1	3.15	0.8	whole rock	conventional K-Ar	UO-106	"4.72E-04, 0.585E-04, 1.19E-04*"	1.08	0.049	7						AGE THOUGHT ANOMALOUSLY YOUNG BY GRAY AND KITTLEMAN (1967) BUT IS BELIEVED CORRECT ACCORDING TO DORT (1967) AND ARMSTRONG (1975)
5865	1	99.33	2	plagioclase	conventional K-Ar	UO-107	"4.72E-04, 0.585E-04, 1.19E-04*"	1.51	2.22	74						AGE IS TOO OLD; CONTAMINATION SUSPECTED
5866	1	25.47	4	whole rock	conventional K-Ar	UO-108	"4.72E-04, 0.585E-04, 1.19E-04*"	0.65	0.24	272522					40AR VALUE IS AVERAGE OF 3 DETERMINATIONS	AGE MAY BE TOO OLD
5867	1	13.8	0.5	glass	conventional K-Ar	UO-109 I	"4.72E-04, 0.585E-04, 1.19E-04*"	6.87	1.37							AGE MAY BE LOW
5867	2	24.18	0.8	plagioclase	conventional K-Ar	UO-109 II	"4.72E-04, 0.585E-04, 1.19E-04*"	2.28	0.799	42				"MIXTURE OF ALBITE (60%), ANDESINE (27%), AND MICROCRYSTALLINE SILICA (13%)"		AGE MAY BE TOO OLD; CONTAMINATION OF THE FELDSPAR IS SUSPECTED
5868	1	21.76	0.6	whole rock	conventional K-Ar	UO-110	"4.72E-04, 0.585E-04, 1.19E-04*"	0.92	0.29	54			age of volcanism			
5869	1	20.03	0.5	whole rock	conventional K-Ar	UO-111 I	"4.72E-04, 0.585E-04, 1.19E-04*"	1	0.29	46			age of volcanism		(ISOTOPE INC. ANALYSIS)	
5869	2	23.46	2	whole rock	conventional K-Ar	UO-111 II	"4.72E-04, 0.585E-04, 1.19E-04*"	1	0.34	352524					ARGON-40 VALUE IS AVERAGE OF 3 ANALYSES (RICE UNIV. ANALYSES)	AGE THOUGHT TO BE TOO OLD
5870	1	20.1	0.6	whole rock	conventional K-Ar	UO-112	"4.72E-04, 0.585E-04, 1.19E-04*"	1.67	0.486	63			age of volcanism			
5871	1	14.22	0.3	whole rock	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	1.46	0.3	78			age of volcanism			
5871	2	15.16	0.3	whole rock	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	1.46	0.32	55			age of volcanism			
5872	1	15.91	0.3	whole rock	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	1.43	0.329	79			age of volcanism			
5873	1	49.05	1.4	whole rock	conventional K-Ar	CWF 129X	"4.72E-04, 0.584E-04, 1.19E-04*"	4.4	3.15	374648			age of volcanism		"K=3.65 AND 3.65%; 40AR(RAD)=7.39, 7.13, AND 6.67XE-6 CC/GM"	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 23, ENTRY NO. 1)"
5874	1	47.26	1.4	whole rock	conventional K-Ar	TALBR3LT	"4.72E-04, 0.584E-04, 1.19E-04*"	2.06	1.42	83			age of volcanism		K=1.72 AND 1.70%	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 23, ENTRY NO. 2)"
5875	1	42.56	1.2	whole rock	conventional K-Ar	TALBR3DRK	"4.72E-04, 0.584E-04, 1.19E-04*"	2.29	1.42	68			age of volcanism		K=1.89 AND 1.92%	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 23, ENTRY NO. 2)"
5876	1	46.42	1.3	biotite	conventional K-Ar	WT268	"4.72E-04, 0.584E-04, 1.19E-04*"	8.47	5.734	66			age of intrusion		K=7.00 AND 7.06%	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 29, ENTRY NO. 24)"
5876	2	51.1	1.5	hornblende	conventional K-Ar	WT268	"4.72E-04, 0.584E-04, 1.19E-04*"	1.12	0.8357	18			age of intrusion		K=0.905 AND 0.956%	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 29, ENTRY NO. 24)"
5877	1	51.91	3	biotite	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	7.94	6.02	85			age of intrusion			"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 27, ENTRY NO. 7)"
5877	2	52.29	1.5	hornblende	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	0.864	0.66	76			age of intrusion			
5878	1	51.4	1.5	hornblende	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	0.758	0.569	70			age of intrusion			"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 27, ENTRY NO. 6)"
5879	1	74.97	2	biotite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	8.13	8.96	94						"PRIMARY AGE MAY BE ABOUT 100 M.Y.  THIS SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 35, ENTRY NO. 18)"
5880	1	58.05	1.6	biotite	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	9.16	7.78	92						"A REDUCED AGE; PRIMARY AGE MAY BE ABOUT 100 M.Y.  SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, P. 50, ENTRY NO. 8)"
5881	1	95.2	3.8	hornblende	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04"	0.51	0.516	64			minimum age of intrusion		(*)	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 35, ENTRY NO. 19)"
5881	2	77.5	2.2	muscovite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04"	8.59	6.24	89					(*)	APPARENTLY A REDUCED AGE
5881	3	69.44	2.1	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	7.26	7.4	92						APPARENTLY A REDUCED AGE
5882	1	880.2	25	hornblende	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	0.802	13.1	98			minimum age of intrusion			"SAMPLE LISTED BY ARMSTRONG (1976, ISOCHRON/WEST, NO. 15, P. 6, ENTRY NO. 2)"
5883	1	488.26	15	hornblende	conventional K-Ar	7	"4.72E-04, 0.584E-04, 1.19E-04*"	1.24	10.01	98						"A REDUCED AGE.  SAMPLE LISTED BY ARMSTRONG (1976, ISOCHRON/WEST, NO. 15, P. 6, ENTRY NO. 3)"
5884	1	70.01	2.7	biotite	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.19E-04*"	8.3	8.53	78						"A REDUCED AGE; SAMPLE LISTED BY ARMSTRONG (1976, ISOCHRON/WEST, NO. 15, P. 3, ENTRY NO. 16)"
5885	1	94.64	3.5	biotite	conventional K-Ar	9	"4.72E-04, 0.584E-04, 1.19E-04*"	5.14	7.19	89						"A REDUCED AGE; SAMPLE LISTED BY ARMSTRONG (1976, ISOCHRON/WEST, NO. 15, P. 3, ENTRY NO. 17)"
5886	1	39.39	1.2	whole rock	conventional K-Ar	HJO-5-65	"4.76E-04, 0.589E-04, 1.18E-04*"	4.46	2.557	86			minimum age of intrusion		K=3.69% AND 3.71%	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 30, ENTRY NO. 7)"
5887	1	49.18	1.4	biotite	conventional K-Ar	HJO-1-65	"4.76E-04, 0.589E-04, 1.18E-04*"	8.62	6.187	86			age of intrusion		K=7.15% AND 7.16%	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 29, ENTRY NO. 19)"
5888	1	44.97	1.3	biotite	conventional K-Ar	HJO-2-65	"4.76E-04, 0.589E-04, 1.18E-04*"	8.64	5.664	92			age of intrusion		K=7.17% AND 7.17%	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 29, ENTRY NO. 20)"
5889	1	45.83	1.3	biotite	conventional K-Ar	HJO-6-65	"4.76E-04, 0.589E-04, 1.18E-04*"	7.79	5.206	71					K=6.46% AND 6.47%	"THIS IS APPARENTLY A REDUCED AGE.  SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 50, ENTRY NO. 7)"
5890	1	41	1.8	biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		(NO ANALYTICAL DATA GIVEN)	"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 29, ENTRY NO. 18)"
5891	1	172	8	hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given						minimum age of metamorphic crystallization		NO ANALYTICAL DATA GIVEN	"SAMPLE LISTED BY ARMSTRONG (1976, ISOCHRON/WEST, NO. 15, P. 3, ENTRY NO. 19)"
5892	1	300		orthoclase	conventional K-Ar	(NOT GIVEN)	no decay constants given						age not evaluated		NO ANALYTICAL DATA GIVEN	"SAMPLE LISTED BY ARMSTRONG (1976, ISOCHRON/WEST, NO. 15, P. 4, ENTRY NO. 34)"
5893	1	669	25	hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given								NO ANALYTICAL DATA GIVEN	"QUESTIONABLE AGE AS EXCESS ARGON MAY BE PRESENT.  SAMPLE LISTED BY ARMSTRONG (1976, ISOCHRON/WEST, NO. 15, P. 4, ENTRY NO. 35)"
5894	1	50.2	3	biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given*	4.98	3.65	72			age of intrusion			"SAMPLE LISTED BY ARMSTRONG (1975, ISOCHRON/WEST, NO. 14, P. 29, ENTRY NO. 21)"
5894	2	47.17	3	K feldspar	conventional K-Ar	(NOT GIVEN)	no decay constants given*	5.9	4.06	53			minimum age of intrusion			
5973	1	204.13	4	biotite	conventional K-Ar	YU-1-161	"4.72E-04, 0.584E-04, 1.19E-04*"	6.18	19.23	88			age of intrusion			"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO. 14, P. 35, ENTRY NO. 15"
5974	1	122.83	2.4	biotite	conventional K-Ar	YU-SS-60-A	"4.72E-04, 0.584E-04, 1.19E-04*"	8	14.64	9491			age of intrusion		K=6.64% AND 6.64%; 40AR(RAD)=32.9 AND 32.7XE-6 CC/GM	"SAMPLE LISTED BY ARMSTRONG, 1975, ISOCHRON/WEST, NO.14, P. 35, ENTRY NO. 16"
5975	1	87.88	3	muscovite	conventional K-Ar	USGS(D)-D2215	"4.72E-04, 0.585E-04, 1.19E-04*"	9.88	12.81	88					K2O=9.95% AND 9.81%	AGE OF MINERALIZATION
5975	2	88.9	3	biotite	conventional K-Ar	USGS(D)-D2215	"4.72E-04, 0.585E-04, 1.19E-04*"	9.535	12.51	87					K2O= 9.56 AND 9.51%	AGE OF MINERALIZATION
5976	1	44.1	1.4	biotite	conventional K-Ar	758A	"4.72E-04, 0.585E-04, 1.19E-04*"	8.715	5.601	70			initial age disturbed by later metamorphism		K2O=8.710% AND 8.720%	"THIS SAMPLE LISTED BY ARMSTRONG, 1975, NO. 14, P. 50, ENTRY NO. 10"
5977	1	1781.06	53	biotite	conventional K-Ar	2096	"4.72E-04, 0.585E-04, 1.19E-04*"	7.9	345.5	97					K2O=7.90% AND 7.90%	AGE APPEARS TO BE TOO OLD; EXCESS ARGON MAY BE PRESENT
5978	1	58.45	1.7	muscovite	conventional K-Ar	2127	"4.72E-04, 0.585E-04, 1.19E-04*"	9.35	7.997	8			age meaning uncertain (analysis questionable)		K2O=9.36% AND 9.34%	
5978	2	78.24	2.6	biotite	conventional K-Ar	2127	"4.72E-04, 0.585E-04, 1.19E-04*"	8.73	10.05	66			initial age disturbed by later metamorphism		K2O=8.70% AND 8.76%	
5979	1	62.4	2.1	biotite	conventional K-Ar	912	"4.72E-04, 0.585E-04, 1.19E-04*"	8.56	7.825	77			initial age disturbed by later metamorphism			
5980	1	47.57	1.6	biotite	conventional K-Ar	971	"4.72E-04, 0.585E-04, 1.19E-04*"	8.71	6.045	89			initial age disturbed by later metamorphism			
5981	1	16.63	0.5	adularia	conventional K-Ar	10.  DRS-23-69	"4.72E-04, 0.585E-04, 1.19E-04*"	15.78	3.795	81						AGE OF MINERALIZATION
5982	1	0.53	0.5	whole rock	conventional K-Ar	1. YU-69-52L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.762	0.0059	0			age of volcanism		K=0.628% AND 0.637%; 40AR(RAD)=0.0103 AND 0.0159XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FUTHER AGE EVALUATION"
5983	1	0.55	0.08	whole rock	conventional K-Ar	2. YU-69-53L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.61	0.0048	54			age of volcanism		K=0.511% AND 0.502%; 40AR(RAD)=0.0110 AND 0.0107XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FUTHER AGE EVALUATION"
5984	1	0.85	0.5	whole rock	conventional K-Ar	3. YU-69-39L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.616	0.0075	11			age of volcanism		K=0.516% AND 0.506%; 40AR(RAD)=0.0153 AND 0.0185XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5985	1	1.21	0.2	whole rock	conventional K-Ar	4. YU-70-8L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.864	0.0151	73			age of volcanism		K=0.715 AND 0.721%; 40AR(RAD)=0.0367 AND 0.0311XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5986	1	1.23	0.2	whole rock	conventional K-Ar	5. YU-59P271HP	"4.72E-04, 0.584E-04, 1.19E-04*"	0.703	0.0125	54			age of volcanism		K=0.587% AND 0.580%; 40AR(RAD)=0.0313 AND 0.0246XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5987	1	1.4	0.07	whole rock	conventional K-Ar	6. YU-69-59L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.826	0.0167	1613			age of volcanism		K=0.686 AND 0.686%; 40AR(RAD)=0.0392 AND 0.0357XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5988	1	1.54	0.3	whole rock	conventional K-Ar	7. YU-70-4L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.601	0.0133	24			age of volcanism		K=0.501 AND 0.497%; 40AR(RAD)=0.0250 AND 0.0345XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5989	1	1.74	0.4	whole rock	conventional K-Ar	8. YU-70-7L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.92	0.023	14			age of volcanism		K=0.770 AND 0.758%; 40AR(RAD)=0.0487 AND 0.0543XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5990	1	1.84	0.2	whole rock	conventional K-Ar	9. YU-70-13L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.363	0.0096	466			age of volcanism		"K=0.296 AND 0.307%; 40AR(RAD)=0.0231, 0.0233, AND 0.0189XE-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5991	1	2.57	0.05	whole rock	conventional K-Ar	10. YU-69-61L	"4.72E-04, 0.584E-04, 1.19E-04*"	2.42	0.0897	3138					K=2.03 AND 2.00%; 40AR(RAD)=0.204 AND 0.199XE-6 CC/GM	"AGE IS ANOMALOUSLY OLD, PERHAPS DUE TO EXCESS RADIOGENIC ARGON"
5992	1	2.92	0.2	whole rock	conventional K-Ar	11. YU-69-60L	"4.72E-04, 0.584E-04, 1.19E-04*"	2.73	0.115	985					"K=2.27 AND 2.26%; 40AR(RAD)=0.261, 0.246, 0.266XE-6 CC/GM"	"AGE IS ANOMALOUSLY OLD, PERHAPS DUE TO EXCESS RADIOGENIC ARGON"
5993	1	3.86	0.1	whole rock	conventional K-Ar	12. YU-59P79HP	"4.72E-04, 0.584E-04, 1.19E-04*"	3.61	0.201	2526					K=3.00 AND 2.99%; 40AR(RAD)=0.447 AND 0.456XE-6 CC/GM	"AGE IS ANOMALOUSLY OLD, PERHAPS DUE TO EXCESS RADIOGENIC ARGON"
5994	1	3.09	0.06	K feldspar	conventional K-Ar	13. YU-69-40L	"4.72E-04, 0.584E-04, 1.19E-04*"	8.68	0.386	58			age of volcanism		K=7.21 AND 7.20%	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5994	2	3.22	0.06	K feldspar	conventional K-Ar	13. YU-69-40L	"4.72E-04, 0.584E-04, 1.19E-04*"	9.76	0.453	58			age of volcanism		K= 8.08 AND 8.13%	"SEE ARMSTRONG AND OTHERS (1975, AJC, P. 225-251) FOR FURTHER AGE EVALUATION"
5995	1	4.37	0.4	whole rock	conventional K-Ar	14. YU-69-51L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.611	0.0385	118			age of volcanism		K=0.505 AND 0.510%; 40AR(RAD)=0.080 AND 0.092XE-6 CC/GM	"AGE IS THOUGHT TO BE 4.4 M.Y.; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FUTHER AGE EVALUATION"
5995	2	5.16	1.3	whole rock	conventional K-Ar	14. YU-69-51L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.631	0.0469	33			age of volcanism		K=0.524 AND 0.523%; 40AR(RAD)=0.126 AND 0.0842XE-6 CC/GM	"AGE IS THOUGHT TO BE 4.4 M.Y.; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5996	1	4.48	0.6	whole rock	conventional K-Ar	15. YU-70-44L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.512	0.0331	55			age of volcanism		K=0.426 AND 0.424%; 40AR(RAD)=0.0712 AND 0.0772XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5997	1	4.63	0.3	whole rock	conventional K-Ar	16. YU-69-42L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.481	0.0321	1111			age of volcanism		K=0.398 AND 0.401%; 40AR(RAD)=0.0739 AND 0.0698XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5998	1	5.1	0.6	whole rock	conventional K-Ar	17. YU-69-47L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.23	0.0169	866			age of volcanism		"K=0.197 AND 0.186%; 40AR(RAD)=0.0342, 0.0467, AND 0.0327XE-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
5999	1	6.06	1	whole rock	conventional K-Ar	18. YU-70-16L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.595	0.052	45			age of volcanism		"K=0.496, 0.492, AND 0.494%; 40AR(RAD)=0.121 AND 0.112XE-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6000	1	6.31	0.7	whole rock	conventional K-Ar	19. YU-69-55L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.364	0.0331	75			age of volcanism		K=0.303% AND 0.301%; 40AR(RAD)=0.0800 AND 0.0684XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6001	1	5.71	0.2	whole rock	conventional K-Ar	20. YU-69-45L	"4.72E-04, 0.584E-04, 1.19E-04*"	4.85	0.399	2018			age of volcanism		K=4.05% AND 4.00%; 40AR(RAD)=0.886 AND 0.902XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6001	2	5.84	0.3	whole rock	conventional K-Ar	20. YU-69-45L	"4.72E-04, 0.584E-04, 1.19E-04*"	4.73	0.398	18			age of volcanism		K=3.94% AND 3.92%	
6001	3	6.18	0.2	feldspar	conventional K-Ar	20. YU-69-45L	"4.72E-04, 0.584E-04, 1.19E-04*"	1.83	0.163	31			age of volcanism		K=1.52% AND 1.51%	
6001	4	5.95	0.11	whole rock	conventional K-Ar	20. YU-69-45L	"4.72E-04, 0.584E-04, 1.19E-04*"	4.73	0.406	3340			age of volcanism		"K=3.84%, 3.98%, AND 3.96%; 40AR(RAD)=0.924 AND 0.896XE-6 CC/GM"	
6001	5	6.7	0.16	feldspar	conventional K-Ar	20. YU-69-45L	"4.72E-04, 0.584E-04, 1.19E-04*"	1.72	0.166	41			age of volcanism		K=1.41% AND 1.44%	
6002	1	7.48	0.3	whole rock	conventional K-Ar	21. YU-62P111HP	"4.72E-04, 0.584E-04, 1.19E-04*"	0.28	0.0302	1712			age of volcanism		K=0.233% AND 0.232%; 40AR(RAD)=0.0676 AND 0.0677XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6003	1	8.38	0.7	whole rock	conventional K-Ar	22. YU-70-3L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.604	0.073	88			age of volcanism		K=0.509% AND 0.493; 40AR(RAD)=0.175 AND 0.152XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6004	1	8.82	0.5	whole rock	conventional K-Ar	23. YU-69-50L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.382	0.0486	1510			age of volcanism		K=0.320% AND 0.314%; 40AR(RAD)=0.109 AND 0.109XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6005	1	9.93	0.16	whole rock	conventional K-Ar	24. YU-69-43L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.01	0.718	6440			age of volcanism		K=4.16% AND 4.16%; 40AR(RAD)=1.61 AND 1.62XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6005	2	9.78	0.14	whole rock	conventional K-Ar	24. YU-69-43L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.26	0.743	7470			age of volcanism		K=4.40% AND 4.33%; 40AR(RAD)=1.64 AND 1.69XE-6 CC/GM	
6006	1	13.84	1.5	whole rock	conventional K-Ar	25. YU-70-11L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.357	0.0714	56			age of volcanism		K=0.302% AND 0.290%; 40AR(RAD)=0.167 AND 0.153XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6007	1	2.62	0.3	whole rock	conventional K-Ar	4. YU-70-10L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.614	0.0232	764					"K=0.506% AND 0.513%; 40AR(RAD)=0.0606, 0.0477, 0.0447XE-6 CC/GM"	"AGE MAY BE TOO YOUNG; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FUTHER AGE EVALUATION"
6008	1	3.22	2	whole rock	conventional K-Ar	5. YU-OB9HP	"4.72E-04, 0.584E-04, 1.19E-04*"	0.576	0.0267	21					K=0.478% AND 0.478%; 40AR(RAD)=0.0707 AND 0.0490XE-6 CC/GM	"AGE MAY BE TOO YOUNG; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6009	1	3.65	0.6	whole rock	conventional K-Ar	6. YU-59P318HP	"4.72E-04, 0.584E-04, 1.19E-04*"	0.786	0.0413	53					"K=0.647, 0.657, AND 0.654%; 40AR(RAD)=0.113 AND 0.072XE-6 CC/GM"	"AGE MAY BE TOO YOUNG; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6010	1	4.16	0.3	whole rock	conventional K-Ar	7. YU-54P93HP	"4.72E-04, 0.584E-04, 1.19E-04*"	0.696	0.0417	88					K=0.581% AND 0.575%; 40AR(RAD)=0.080 AND 0.107XE-6 CC/GM	"AGE MAY BE TOO YOUNG; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6011	1	-0.02	0.05	whole rock	conventional K-Ar	1. YU-69-27L	"4.72E-04, 0.584E-04, 1.19E-04"	1.74							K=1.44% AND 1.47%; 40AR(RAD)=0.0013 AND -0.0028XE-6 CC/GM	"A NEGATIVE AGE, AGE IS THOUGHT TO BE ABOUT 0.02 M.Y.; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FUTHER AGE EVALUATION"
6011	2	0.07	0.09	whole rock	conventional K-Ar	1. YU-69-27L	"4.72E-04, 0.584E-04, 1.19E-04"								K=3.82% AND 3.76%; 40AR(RAD)=0.0117 AND 0.0096XE-6 CC/GM	"AGE IS THOUGHT TO BE ABOUT 0.02 M.Y.; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FUTHER AGE EVALUATION"
6012	1	-0.09	0.2	whole rock	conventional K-Ar	2. YU-69-22L	"4.72E-04, 0.584E-04, 1.19E-04*"	1.46	-0.0019						K=1.22% AND 1.21%; 40AR(RAD)=0.0015 AND -0.0099XE-6 CC/GM	"A NEGATIVE AGE; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6013	1	-0.09	0.1	whole rock	conventional K-Ar	2. YU-70-28L	"4.72E-04, 0.584E-04, 1.19E-04*"	4.57	-0.0063						K=3.72% AND 3.87%; 40AR(RAD)=-0.009 AND -0.019XE-6 CC/GM	"A NEGATIVE AGE; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6014	1	0.04	0.02	whole rock	conventional K-Ar	4. YU-70-27L	"4.72E-04, 0.584E-04, 1.19E-04*"	4.61	0.0029	12			age of volcanism		K=3.87% AND 3.79%; 40AR(RAD)=0.004 AND 0.009XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6015	1	0.09	0.04	feldspar	conventional K-Ar	5. YU-70-26L	"4.72E-04, 0.584E-04, 1.19E-04*"	4.97	0.0061				age of volcanism		"K=4.21% AND 4.04%; 40AR(RAD)=0.020, 0.025, 0.003, AND 0.007XE-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6016	1	0.07	0.14	whole rock	conventional K-Ar	6. YU-69M9M	"4.72E-04, 0.584E-04, 1.19E-04*"	0.687	0.0006	0			age of volcanism		K=0.569% AND 0.571%; 40AR(RAD)=-0.0005 AND 0.0034XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6017	1	0.11	0.03	whole rock	conventional K-Ar	7. YU-900O	"4.72E-04, 0.584E-04, 1.19E-04*"	0.847	0.0013	1			age of volcanism		K=0.700% AND 0.706%; 40AR(RAD) VALUE IS AVERAGE OF 13 ANALYSES	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6018	1	0.09	0.3	whole rock	conventional K-Ar	8. YU-902O	"4.72E-04, 0.584E-04, 1.19E-04*"	0.996	0.0013				age of volcanism		K=0.826% AND 0.827%; 40AR(RAD) VALUE IS THE AVERAGE OF 3 ANALYSES	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6019	1	0.12	0.4	whole rock	conventional K-Ar	9. YU-903O	"4.72E-04, 0.584E-04, 1.19E-04*"	1.052	0.0018	0			age of volcanism		K=0.871% AND 0.875%	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6020	1	0.11	0.2	whole rock	conventional K-Ar	10. YU-69-13L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.74	0.0012	0			age of volcanism		K=0.612% AND 0.616%; 40AR(RAD)=0.0005 AND 0.0049XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6021	1	0.14	0.06	whole rock	conventional K-Ar	11. YU-69-2L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.977	0.0019	40			age of volcanism		"K=0.835%, 0.810%, AND 0.789%; 40AR(RAD)=0.0072 AND 0.0015XE-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6021	2	0.15	0.04	whole rock	conventional K-Ar	11. YU-69-2L	"4.72E-04, 0.584E-04, 1.19E-04*"	1.035	0.0022	32			age of volcanism		"K=0.857%, 0.889%, AND 0.832%; 40AR(RAD)=0.0047 AND 0.0051XE-6 CC/GM"	
6022	1	0.31	0.02	whole rock	conventional K-Ar	12. YU-70-38L	"4.72E-04, 0.584E-04, 1.19E-04*"	4.69	0.0209	910			age of volcanism		K=3.87% AND 3.92%; 40AR(RAD)=0.0404 AND 0.0535XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6023	1	0.43	0.1	whole rock	conventional K-Ar	13. YU-62P73HP	"4.72E-04, 0.584E-04, 1.19E-04*"	0.55	0.0034	52			age of volcanism		K=0.455% AND 0.458%; 40AR(RAD)=0.0098 AND 0.0056XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6024	1	0.57	0.1	whole rock	conventional K-Ar	14. YU-70-36L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.13	0.0424	55			age of volcanism		K=4.29% AND 4.23%; 40AR(RAD)=0.092 AND 0.102XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6025	1	0.97	0.2	whole rock	conventional K-Ar	15. YU-69-3L	"4.72E-04, 0.584E-04, 1.19E-04*"	2.05	0.0286	32			age of volcanism		K=1.70% AND 1.71%; 40AR(RAD)=0.0712 AND 0.0572XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6026	1	0.83	0.1	whole rock	conventional K-Ar	16. YU-69-8L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.736	0.0088	74			age of volcanism		"K=0.605%, 0.619%, AND 0.608%; 40AR(RAD)=0.0237 AND 0.0155XE-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6027	1	0.97	0.05	K feldspar	conventional K-Ar	17. YU-69-51	"4.72E-04, 0.584E-04, 1.19E-04*"	9.3	0.13	541			age of volcanism		"K=7.76%, 7.70%, AND 7.69%; 40AR(RAD)=0.294 AND 0.290XE-6 CC/GM"	"TUFF THOUGHT TO BE 1.03 M.Y. OLD; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FUTHER AGE EVALUATION"
6027	2	1.13	0.04	K feldspar	conventional K-Ar	17. YU-69-5L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.24	0.085	1826			age of volcanism		K=4.26% AND 4.44%; 40AR(RAD)=0.198 AND 0.183XE-6 CC/GM	TUFF THOUGHT TO BE 1.03 M.Y. OLD
6028	1	2.03	1.2	whole rock	conventional K-Ar	18. YU-70-35L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.469	0.0137	12			age of volcanism		K=0.388% AND 0.390%; 40AR(RAD)=0.0207 AND 0.0409XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6029	1	2.44	0.3	whole rock	conventional K-Ar	19. YU-928A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.407	0.0143	65			age of volcanism		K=0.343% AND 0.333%; 40AR(RAD)=0.027 AND 0.037XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6030	1	3.77	0.1	whole rock	conventional K-Ar	20. YU-69-6L	"4.72E-04, 0.584E-04, 1.19E-04*"	1.171	0.0636	2920			age of volcanism		K=0.979% AND 0.987%; 40AR(RAD)=0.140 AND 0.145XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6031	1	4.21	0.13	whole rock	conventional K-Ar	21. YU-69-9L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.04	0.306	2223			age of volcanism		K=4.18% AND 4.19%; 40AR(RAD)=0.694 AND 0.678XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6031	2	4.25	0.14	whole rock	conventional K-Ar	21. YU-69-9L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.13	0.314	2221			age of volcanism		K=4.29% AND 4.23%; 40AR(RAD)=0.709 AND 0.697XE-6 CC/GM	
6031	3	4.87	0.1	feldspar	conventional K-Ar	21. YU-69-9L	"4.72E-04, 0.584E-04, 1.19E-04*"	2.85	0.2	38			maximum age of volcanism		K=2.29% AND 2.44%	
6032	1	4.87	0.3	whole rock	conventional K-Ar	22. YU-69-10L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.299	0.021	1112			age of volcanism		"K= 0.255, 0.247, AND 0.242%; 40AR(RAD)= 0.0452 AND 0.0491 X E-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6033	1	4.98	0.17	whole rock	conventional K-Ar	23. YU-69-11L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.5	0.395	2420				HYDRATED GLASS	K= 4.57 AND 4.56%; 40AR(RAD)= 0.805 AND 0.965 X E-6 CC/GM	"AGE APPEARS LOW; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6033	2	5.85	0.21	whole rock	conventional K-Ar	23. YU-69-11L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.45	0.46	2223			minimum age of volcanism	HYDRATED GLASS	K= 4.54 AND 4.51%; 40AR(RAD)= 1.03 AND 1.03 X E-6 CC/GM	
6034	1	6.34	0.09	glass	conventional K-Ar	24. YU-69-12L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.1	0.466	8059			age of volcanism		K= 4.22 AND 4.24%; 40AR(RAD)= 1.06 AND 1.03 X E-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6035	1	6.41	0.3	whole rock	conventional K-Ar	25. YU-776A	"4.72E-04, 0.584E-04, 1.19E-04*"	5.04	0.466	1614			age of volcanism		K= 4.21 AND 4.16%; 40AR(RAD)= 1.04 AND 1.05 X E-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6036	1	6.5	0.1	whole rock	conventional K-Ar	26. YU-QTV2A	"4.72E-04, 0.584E-04, 1.19E-04*"	5.08	0.4759	6154			age of volcanism		K= 4.20 AND 4.24%; 40AR(RAD)= 1.066 AND 1.067 X E-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6037	1	6.78	0.1	feldspar	conventional K-Ar	27. YU-70-19BL	"4.72E-04, 0.584E-04, 1.19E-04*"	3.64	0.356	432833			age of volcanism		"K= 3.04 AND 3.01%; 40AR(RAD)= 0.791, 0.768, AND 0.833 X E-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6038	1	7.89	0.1	feldspar	conventional K-Ar	28. YU-70-20L	"4.72E-04, 0.584E-04, 1.19E-04*"	5.27	0.6	5558			age of volcanism		K= 4.33 AND 4.42%; 40AR(RAD)= 1.37 AND 1.32 X E-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6039	1	8.8	0.3	glass	conventional K-Ar	29. YU-794A	"4.72E-04, 0.584E-04, 1.19E-04*"	4.92	0.625	44			age of volcanism		"K= 4.09, 4.06, AND 4.11%"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6040	1	8.63	0.2	whole rock	conventional K-Ar	30. YU-929A	"4.72E-04, 0.584E-04, 1.19E-04*"	4.8	0.598	50			age of volcanism		K= 4.02 AND 3.95%	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6041	1	8.8	0.2	whole rock	conventional K-Ar	31. YU-805A	"4.72E-04, 0.584E-04, 1.19E-04*"	4.92	0.625	69			age of volcanism		"K= 4.05, 4.11, AND 4.09%"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6042	1	9.39	0.5	whole rock	conventional K-Ar	32. YU-801A	"4.72E-04, 0.584E-04, 1.19E-04*"	3.89	0.527	18			age of volcanism		K= 3.22 AND 3.24%	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6042	2	9.36	0.4	feldspar	conventional K-Ar	32. YU-801A	"4.72E-04, 0.584E-04, 1.19E-04*"	1.85	0.25	22			age of volcanism		K= 1.54 AND 1.53%	
6043	1	9.41	1.5	whole rock	conventional K-Ar	33. YU-927A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.123	0.0167	56			age of volcanism		"K= 0.099, 0.112, AND 0.095%; 40AR(RAD)= 0.035 AND 0.040 X E-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6044	1	9.81	0.1	whole rock	conventional K-Ar	34. YU-70-21L	"4.72E-04, 0.584E-04, 1.19E-04*"	4.54	0.643	697850			age of volcanism		"K= 3.76 AND 3.77%; 40AR(RAD)= 1.46, 1.46, AND 1.40 X E-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6045	1	10.61	0.14	K feldspar	conventional K-Ar	35. YU-TAV1A	"4.72E-04, 0.584E-04, 1.19E-04*"	8.29	1.27	8676			age of volcanism		K= 6.85 AND 6.91%; 40AR(RAD)= 2.83 AND 2.87 X E-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6046	1	10.78	0.14	whole rock	conventional K-Ar	36. YU-924R	"4.72E-04, 0.584E-04, 1.19E-04*"	5.16	0.803	5551			age of volcanism		K= 4.31 AND 4.26%; 40AR(RAD)= 1.81 AND 1.79 X E-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6047	1	8.54	0.2	whole rock	conventional K-Ar	37. YU-922R	"4.72E-04, 0.584E-04, 1.19E-04*"	5.25	0.647	3631			minimum age of volcanism		K= 4.35 AND 4.36%; 40AR(RAD)= 1.45 AND 1.45 X E-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6048	1	11.07	0.2	biotite	conventional K-Ar	38. YU-921R	"4.72E-04, 0.584E-04, 1.19E-04*"	7.32	1.17	4347			age of volcanism		K= 6.08 AND 6.07%; 40AR(RAD)= 2.65 AND 2.59 X E-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6048	2	9.56	0.14	K feldspar	conventional K-Ar	38. YU-921R	"4.72E-04, 0.584E-04, 1.19E-04*"	10.72	1.48	7785			minimum age of volcanism		K= 8.94 AND 8.86%; 40AR(RAD)= 3.32 AND 3.33 X E-6 CC/GM	
6049	1	13.08	0.4	sanidine	conventional K-Ar	39. YU-A162490A	"4.72E-04, 0.584E-04, 1.19E-04*"	6.93	1.31	65			age of volcanism		K=5.80% AND 5.71%	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6050	1	4.97	0.7	whole rock	conventional K-Ar	40. YU-70-45L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.114	0.0082	46			minimum age of volcanism		K=0.095% AND 0.095%; 40AR(RAD)=0.0170 AND 0.0196XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6051	1	6.28	0.2	whole rock	conventional K-Ar	41. YU-69-41L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.445	0.0403	1727			age of volcanism		K=0.373% AND 0.365%; 40AR(RAD)=0.0931 AND 0.0875XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6051	2	6.75	0.6	whole rock	conventional K-Ar	41. YU-69-41L	"4.72E-04, 0.584E-04, 1.19E-04*"	0.408	0.0397	205			age of volcanism		"K=0.347%, 0.339%, 0.335%, AND 0.334%; 40AR(RAD)=0.0863 AND 0.0915XE-6 CC/GM"	
6052	1	17.42	1.5	whole rock	conventional K-Ar	9. YU-64-44CWF	"4.72E-04, 0.584E-04, 1.19E-04*"	1.46	0.368	686			age of volcanism		"K=1.21% AND 1.21%; 40AR(RAD)=0.779, 0.807, AND 0.887XE-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6053	1	15.47	0.5	whole rock	conventional K-Ar	10. YU-423WT	"4.72E-04, 0.584E-04, 1.19E-04*"	0.432	0.0966	152912			age of volcanism		"K=0.355% AND 0.363%; 40AR(RAD)=0.203, 0.230, AND 0.217XE-6 CC/GM"	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6054	1	15.39	0.7	whole rock	conventional K-Ar	11. YU-342WT	"4.72E-04, 0.584E-04, 1.19E-04*"	1.55	0.345	1020			age of volcanism		K=1.29% AND 1.28%; 40AR(RAD)=0.771 AND 0.777XE-6 CC/GM	"SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6055	1	12.53	1.2	whole rock	conventional K-Ar	12. YU-339WT	"4.72E-04, 0.584E-04, 1.19E-04*"	1.16	0.21	58					K=0.965% AND 0.968%; 40AR(RAD)=0.467 AND 0.474XE-6 CC/GM	"CALCULATED AGE SEEMS LOW; AGE IS PROBABLY 15 TO 17 M.Y.; SEE ARMSTRONG AND OTHERS (1975, AJS, P. 225-251) FOR FURTHER AGE EVALUATION"
6056	1	49.05	1.4	whole rock	conventional K-Ar	1. YU-CWF12-9-X	"4.72E-04, 0.584E-04, 1.19E-04*"	4.4	3.15	374648			age of volcanism		"K=3.65% AND 3.65%; 40AR(RAD)=7.39, 7.13, AND 6.67XE-6 CC/GM"	SEE ARMSTRONG (1974)
6057	1	47.26	1.4	whole rock	conventional K-Ar	2. YU-TALBR3LT	"4.72E-04, 0.584E-04, 1.19E-04*"	2.06	1.42	83			age of volcanism	LIGHT COLORED	K=1.72% AND 1.70%	SEE ARMSTRONG (1974)
6058	1	42.56	1.2	whole rock	conventional K-Ar	2. YU-TALBR3DRK	"4.72E-04, 0.584E-04, 1.19E-04*"	2.29	1.42	68			age of volcanism		K=1.89% AND 1.92%	SEE ARMSTRONG (1974)
6059	1	48.57	1.4	biotite	conventional K-Ar	3. YU-875	"4.72E-04, 0.584E-04, 1.19E-04*"	8.04	5.698	58			age of volcanism		K= 6.67 AND 6.67%	SEE ARMSTRONG (1974)
6060	1	46.72	1.4	whole rock	conventional K-Ar	4. YU-1026	"4.72E-04, 0.584E-04, 1.19E-04*"	3.61	2.46	4429					K= 2.99 AND 3.00%; 40AR(RAD)= 5.41 AND 5.61 XE-6 CC/GM	"SEE ARMSTRONG (1974); AGE IS SPURIOUS; ROCK CONTAINS CONSIDERABLE ZEOLITES ACCORDING TO D.H. MCINTYRE, U.S.G.S."
6061	1	50.09	1.5	whole rock	conventional K-Ar	5. YU-1027	"4.72E-04, 0.584E-04, 1.19E-04*"	2.27	1.66	2828			age of volcanism		K= 1.87 AND 1.90%; 40AR(RAD)= 3.75 AND 3.71 XE-6 CC/GM	SEE ARMSTRONG (1974)
6062	1	49.05	1.4	feldspar	conventional K-Ar	6. YU-1028	"4.72E-04, 0.584E-04, 1.19E-04*"	2.78	1.99	54			age of volcanism		K= 2.30 AND 2.31%	SEE ARMSTRONG (1974)
6063	1	47.9	1.4	whole rock	conventional K-Ar	7. YU-1029	"4.72E-04, 0.584E-04, 1.19E-04*"	1.86	1.3	3026			age of volcanism		K= 1.53 AND 1.55%; 40AR(RAD)= 2.90 AND 2.94 XE-6 CC/GM	SEE ARMSTRONG (1974)
6064	1	39.84	1.2	plagioclase	conventional K-Ar	8. YU-1031	"4.72E-04, 0.584E-04, 1.19E-04*"	1.25	0.725	2733			age of intrusion		"K= 1.02, 1.03, 1.07, AND 1.05%; 40AR(RAD)= 1.65 AND 1.60 XE-6 CC/GM"	SEE ARMSTRONG (1974)
6065	1	44.92	1.3	K feldspar	conventional K-Ar	9. YU-1032	"4.72E-04, 0.584E-04, 1.19E-04*"	7.01	4.59	55			age of volcanism		K= 5.79 AND 5.84%	SEE ARMSTRONG (1974)
6066	1	43.09	1.3	whole rock	conventional K-Ar	12. YU-RAP71-18	"4.72E-04, 0.584E-04, 1.19E-04*"	3.01	1.89	70			minimum age of volcanism		K= 2.50 AND 2.50%	SEE ARMSTRONG (1974)
6067	1	51.08	1.7	biotite	conventional K-Ar	13. BL-203	"4.72E-04, 0.585E-04, 1.19E-04*"	7.45	5.557	94			age of volcanism		K2O= 7.48 AND 7.42%	
6068	1	43.28	1.4	biotite	conventional K-Ar	14. MHS-94-71	"4.72E-04, 0.585E-04, 1.19E-04*"	7.37	4.648	56			age of volcanism		K2O= 7.34 AND 7.40%	
6068	2	41.26	1.4	sanidine	conventional K-Ar	14. MHS-94-71	"4.72E-04, 0.585E-04, 1.19E-04*"	2.2	1.322	78			age of volcanism	IMPURE SANIDINE	K2O= 2.21 AND 2.19%	
6069	1	39.12	1.1	whole rock	conventional K-Ar	1. YU-RAP71-17	"4.72E-04, 0.584E-04, 1.19E-04*"	2.81	1.6	63					K= 2.35 AND 2.32%	QUESTIONABLE AGE--PROBABLY TOO YOUNG
6070	1	36.67	1.1	whole rock	conventional K-Ar	2. YU-RAP71-16	"4.72E-04, 0.584E-04, 1.19E-04*"	2.4	1.28	73					K= 1.99 AND 1.99%	QUESTIONABLE AGE--PROBABLY TOO YOUNG
6071	1	29.18	1.4	whole rock	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	3.235	1.37	94			minimum age of volcanism		K2O= 3.21 AND 3.26%	"DUE TO LIKELY LOSS OF RADIOGENIC ARGON, AGE IS PROBABLY OLDER. AGE MENTIONED BY CATER AND OTHERS, 1973, USGS BULL. 1304, P. 29"
6072	1	7.89	2.5	glass	conventional K-Ar	6. YU-1030	"4.72E-04, 0.584E-04, 1.19E-04*"	0.922	0.105	22					K= 0.766 AND 0.764%; 40AR(RAD)= 0.264 AND 0.206 XE-6 CC/GM	AGE IS TOO YOUNG--APPARENT LARGE LOSS OF ARGON BY DIFFUSION
6073	1	47.1	1.4	biotite	conventional K-Ar	1. YU-872	"4.72E-04, 0.584E-04, 1.19E-04*"	7.67	5.27	60			minimum age of intrusion	9% CHLORITE IN THE BIOTITE CONCENTRATE	"K= 6.40, 6.37, AND 6.33%"	SEE ARMSTRONG (1974)
6073	2	55.81	1.6	hornblende	conventional K-Ar	1. YU-872	"4.72E-04, 0.584E-04, 1.19E-04*"	1.74	1.42	66			maximum age of intrusion	IMPURE HORNBLENDE CONCENTRATE	K= 1.42 AND 1.47%	SEE ARMSTRONG (1974)
6074	1	45.8	1.3	biotite	conventional K-Ar	2. YU-862	"4.72E-04, 0.584E-04, 1.19E-04*"	8.13	5.43	63			age of intrusion	7% CHLORITE IN BIOTITE CONCENTRATE	K= 6.75 AND 6.74%	SEE ARMSTRONG (1974)
6075	1	47.21	1.4	biotite	conventional K-Ar	3. YU-863	"4.72E-04, 0.584E-04, 1.19E-04*"	7.38	5.082	74			age of intrusion	9% CHLORITE IN BIOTITE CONCENTRATE	K= 6.17 AND 6.09%	SEE ARMSTRONG (1974)
6076	1	46.46	1.4	biotite	conventional K-Ar	4. YU-864	"4.72E-04, 0.584E-04, 1.19E-04*"	6.11	4.14	58			age of intrusion	15% CHLORITE IN THE BIOTITE CONCENTRATE	K= 5.10 AND 5.05%	SEE ARMSTRONG (1974)
6077	1	48.88	1.4	biotite	conventional K-Ar	5. YU-RAP71-15	"4.72E-04, 0.584E-04, 1.19E-04*"	3.21	2.29	64			age of intrusion	30% CHLORITE IN THE BIOTITE CONCENTRATE	K= 2.66 AND 2.67%	SEE ARMSTRONG (1974)
6078	1	48.71	1.4	biotite	conventional K-Ar	9. YU-1033	"4.72E-04, 0.584E-04, 1.19E-04*"	6.93	4.926	82			age of intrusion		K= 5.80 AND 5.70%	SEE ARMSTRONG (1974)
6079	1	45.37	1.3	biotite	conventional K-Ar	10. YU-1034	"4.72E-04, 0.584E-04, 1.19E-04*"	7.05	4.663	74			minimum age of intrusion	BIOTITE LOOKS SLIGHTLY OXIDIZED	K= 5.86 AND 5.84%	SEE ARMSTRONG (1974)
6080	1	48.68	1.4	biotite	conventional K-Ar	11. YU-1035	"4.72E-04, 0.584E-04, 1.19E-04*"	6.84	4.859	68			age of intrusion		K= 5.72 AND 5.63%	SEE ARMSTRONG (1974)
6081	1	45.53	1.3	phlogopite	conventional K-Ar	13. YU-802	"4.72E-04, 0.584E-04, 1.19E-04*"	9.84	6.532	51			age of intrusion		K= 8.16 AND 8.17%	SEE ARMSTRONG (1974)
6082	1	45.31	1.3	biotite	conventional K-Ar	15. YU-1023	"4.72E-04, 0.584E-04, 1.19E-04*"	6.76	4.466	79			age of intrusion	SLIGHTLY WEATHERED BIOTITE	K= 5.66 AND 5.57%	SEE ARMSTRONG (1974)
6083	1	44.84	1.3	biotite	conventional K-Ar	16. YU-1022	"4.72E-04, 0.584E-04, 1.19E-04*"	5.37	3.51	66			age of intrusion		K= 4.46 AND 4.45%	SEE ARMSTRONG (1974)
6084	1	43.87	1.3	biotite	conventional K-Ar	17. YU-FWC 6-67	"4.72E-04, 0.584E-04, 1.19E-04*"	3.91	2.5	58			age of intrusion		K= 3.25 AND 3.24%	SEE ARMSTRONG (1974)
6085	1	30.84	2	biotite	conventional K-Ar	22	"4.72E-04, 0.585E-04, 1.19E-04*"	4.02	1.8	2726					40AR(RAD)= 0.00776 AND 0.00660 PPM	"AGE IS APPARENTLY TOO YOUNG; AGE MENTIONED BY CATER AND OTHERS, 1973, USGS BULL. 1304, P. 27"
6085	2	42.61	2	sanidine	conventional K-Ar	22	"4.72E-04, 0.585E-04, 1.19E-04*"	5.96	3.7	59			age of intrusion			"AGE IS QUESTIONABLE BECAUSE OF DISCORDANT BIOTITE AND SANIDINE AGES; THIS AGE MENTIONED BY CATER AND OTHERS, 1973, USGS BULL. 1304, P. 27"
6086	1	52.14	2	hornblende	conventional K-Ar	23. DRS-22-69	"4.72E-04, 0.585E-04, 1.19E-04*"	0.79	0.6017	74			age of intrusion			
6086	2	47.91	2	biotite	conventional K-Ar	23. DRS-22-69	"4.72E-04, 0.585E-04, 1.19E-04*"	8.74	6.109	90			minimum age of intrusion			
6087	1	46.42	1.3	biotite	conventional K-Ar	24. YU-WT268	"4.72E-04, 0.584E-04, 1.19E-04*"	8.47	5.734	66			age of intrusion		K= 7.00 AND 7.06%	SEE ARMSTRONG (1974)
6087	2	51.1	1.5	hornblende	conventional K-Ar	24. YU-WT268	"4.72E-04, 0.584E-04, 1.19E-04*"	1.12	0.8357	18			age of intrusion		K= 0.905 AND 0.956%	SEE ARMSTRONG (1974)
6091	1	219.61	5	biotite	conventional K-Ar	8. YU-984	"4.72E-04, 0.585E-04, 1.19E-04*"	3.81	12.81	95			age of intrusion		K= 3.16%	
6092	1	192.12	6	hornblende	conventional K-Ar	10. YU-985	"4.72E-04, 0.585E-04, 1.19E-04*"	0.418	1.22	7461				HORNBLENDE-PYROXENE MIXTURE	"K= 0.357, 0.348, AND 0.336%; 40AR(RAD)= 2.67 AND 2.79 XE-6 CC/GM"	AGE TOO YOUNG; SHOULD BE AROUND 200 M.Y. OLD
6093	1	195.94	6	biotite	conventional K-Ar	11. YU-986	"4.72E-04, 0.585E-04, 1.19E-04*"	1.99	5.93	83			minimum age of intrusion	BIOTITE-HORNBLENDE MIXTURE	"K= 1.71, 1.62, AND 1.61%"	
6094	1	165.41	11	hornblende	conventional K-Ar	20	"4.72E-04, 0.585E-04, 1.19E-04*"	0.296	0.7382				age not evaluated	CHLORITIZED HORNBLENDE	K= 0.247 AND 0.245%; 40AR(RAD)= 0.003026 AND 0.002875 PPM	
6095	1	70.1	2	muscovite	conventional K-Ar	21. DRS-15-69	"4.72E-04, 0.584E-04, 1.19E-04*"	9.86	10.147	74						MAY BE AGE OF MINERALIZATION
6096	1	71.22	2	biotite	conventional K-Ar	22. DRS-16-69	"4.72E-04, 0.585E-04, 1.19E-04*"	8.23	8.607	95			age of intrusion			
6097	1	68.84	2	biotite	conventional K-Ar	23. DRS-24-69	"4.72E-04, 0.585E-04, 1.19E-04*"	8.76	8.85	91			age of intrusion			
6098	1	90.51	3	biotite	conventional K-Ar	25. SWH-45-72	"4.72E-04, 0.585E-04, 1.19E-04*"	8.935	11.94	91					K2O= 8.93 AND 8.94%	AGE IS PROBABLY A REDUCED AGE; STOCK MAY BE PART OF IDAHO BATHOLITH
6099	1	98.04	3.3	biotite	conventional K-Ar	24. R-130	"4.72E-04, 0.585E-04, 1.19E-04*"	8.845	12.83	94					K2O= 8.86 AND 8.83%	AGE IS PROBABLY A REDUCED AGE; STOCK MAY BE PART OF IDAHO BATHOLITH
6102	1	47.28	1.9	hornblende	conventional K-Ar	9.  FWC-72-69	"4.72E-04, 0.584E-04, 1.19E-04*"	0.488	0.3366	60						PROBABLY A REDUCED AGE
6107	1	78.53	2	biotite	conventional K-Ar	31. YU-877(MCC-9A)	"4.72E-04, 0.584E-04, 1.19E-04*"	6.7	7.742	58			age not evaluated	BIOTITE PLUS 20% CHLORITE	K=5.59% AND 5.54%	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6109	1	66.79	2	biotite	conventional K-Ar	30. YU-876(MCC-22)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.96	8.777	71			age not evaluated	BIOTITE PLUS 6% CHLORITE	"K=7.44%, 7.47%, AND 7.40%"	"SAMPLE LISTED BY ARMSTRONG (1974); THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6117	1	71.33	2	biotite	conventional K-Ar	33. YU-925	"4.72E-04, 0.584E-04, 1.19E-04*"	8.66	9.071	86					K=7.20% AND 7.17%	"PROBABLY A REDUCED AGE. THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6118	1	73.04	2	biotite	conventional K-Ar	34. YU-926	"4.72E-04, 0.584E-04, 1.19E-04*"	8.76	9.401	78					K=7.34% AND 7.21%	"PROBABLY A REDUCED AGE.  THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6119	1	96.84	3	biotite	conventional K-Ar	35. YU-1040	"4.72E-04, 0.584E-04, 1.19E-04*"	7.38	10.57	93			minimum age of intrusion		K=6.09% AND 6.17%	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6120	1	80.93	2	biotite	conventional K-Ar	36. YU-1041	"4.72E-04, 0.584E-04, 1.19E-04*"	8.61	10.26	87					K=7.10% AND 7.19%	"PROBABLY A REDUCED AGE. THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6121	1	83.87	2	biotite	conventional K-Ar	37. YU-1042	"4.72E-04, 0.584E-04, 1.19E-04*"	8.52	10.53	85					K=7.10% AND 7.04%	"PROBABLY A REDUCED AGE.  THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6122	1	81.4	2	biotite	conventional K-Ar	38. YU-1043	"4.72E-04, 0.584E-04, 1.19E-04*"	8.45	10.13	89					K=7.03% AND 7.00%	"PROBABLY A REDUCED AGE.  THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6123	1	64.24	1.9	biotite	conventional K-Ar	39. YU-871	"4.72E-04, 0.584E-04, 1.19E-04*"	9.28	8.737	79				BIOTITE PLUS 4% CHLORITE	K=7.70% AND 7.71%	PROBABLY A REDUCED AGE
6125	1	119.4	4	biotite	conventional K-Ar	41. YU-WT1003	"4.72E-04, 0.584E-04, 1.19E-04*"	7.99	14.2	79					K=6.63% AND 6.63%	"AGE APPEARS TOO YOUNG.  THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6125	2	139.8	4	hornblende	conventional K-Ar	41. YU-WT1003	"4.72E-04, 0.584E-04, 1.19E-04*"	0.712	1.49	5931			age of intrusion		"K=0.586%, 0.577%, AND 0.611%; 40AR(RAD)=3.40 AND 3.28XE-6 CC/GM"	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6132	1	123.66	4	whole rock	conventional K-Ar	42. YU-983	"4.72E-04, 0.584E-04, 1.19E-04*"	8.08	14.89	81			minimum age of intrusion		K=6.69% AND 6.72%	"AGE ALSO REPORTED BY WHITE, 1973, GSA, V.84, P. 199-210"
6132	2	130.36	4	hornblende	conventional K-Ar	42. YU-983	"4.72E-04, 0.584E-04, 1.19E-04*"	2.23	4.34	7687			minimum age of intrusion	HORNBLENDE-BIOTITE MIXTURE	K=1.82% AND 1.88%; 40AR(RAD)=9.80 AND 9.64XE-6 CC/GM	"AGE ALSO REPORTED BY WHITE, 1973, GSA, V.84, P. 199-210"
6135	1	78.03	2	biotite	conventional K-Ar	45. YU-WT160	"4.72E-04, 0.584E-04, 1.19E-04*"	8.22	9.437	83			minimum age of intrusion		K=6.72% AND 6.93%	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6135	2	91.35	3	hornblende	conventional K-Ar	45. YU-WT160	"4.72E-04, 0.584E-04, 1.19E-04*"	1.295	1.747	7065			maximum age of intrusion		"K=1.080%, 1.079%, AND 1.067%; 40AR(RAD)=3.89 AND 3.94XE-6 CC/GM"	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6137	1	76.62	2	biotite	conventional K-Ar	46. YU-WT258	"4.72E-04, 0.584E-04, 1.19E-04*"	8.91	10.04	80			age of intrusion		K=7.38% AND 7.41%	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6138	1	83.98	2	biotite	conventional K-Ar	49. YU-WT133	"4.72E-04, 0.584E-04, 1.19E-04*"	8.67	10.73	84			age of intrusion		K=7.20% AND 7.20%	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6138	2	119.3	4	hornblende	conventional K-Ar	49. YU-WT133	"4.72E-04, 0.584E-04, 1.19E-04*"	1.408	2.5	6937					"K=1.176%, 1.176%, AND 1.156%; 40AR(RAD)=5.66 AND 5.55XE-6 CC/GM"	"THIS MAY BE A PRIMARY AGE OR MAY BE SPURIOUS BECAUSE OF EXCESS ARGON. THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6146	1	86.32	3	biotite	conventional K-Ar	51. YU-WT151	"4.72E-04, 0.584E-04, 1.19E-04*"	9.23	11.75	79			age of intrusion		K=7.68% AND 7.65%	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6148	1	70.97	2	biotite	conventional K-Ar	54. YU-WT236	"4.72E-04, 0.584E-04, 1.19E-04*"	9.27	9.66	77					K=7.72% AND 7.67%	"PROBABLY A REDUCED AGE; THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6151	1	66.02	2	biotite	conventional K-Ar	53. YU-WT242	"4.72E-04, 0.584E-04, 1.19E-04*"	8.37	8.103	79					K=6.97% AND 6.93%	"PROBABLY A REDUCED AGE; THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6153	1	73.45	2	biotite	conventional K-Ar	56. YU-WT204	"4.72E-04, 0.584E-04, 1.19E-04*"	9.05	9.767	83			age of intrusion		K=7.52% AND 7.50%	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6155	1	89.22	3	biotite	conventional K-Ar	57. YU-WT261	"4.72E-04, 0.584E-04, 1.19E-04*"	8.46	11.14	68			age of intrusion		K=6.98% AND 7.07%	"THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6160	1	72.76	2	biotite	conventional K-Ar	59. YU-WT714	"4.72E-04, 0.584E-04, 1.19E-04*"	8.74	9.343	85					K=7.25% AND 7.26%	"APPEARS TO BE A REDUCED AGE; THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6160	2	83.49	2	hornblende	conventional K-Ar	59. YU-WT714	"4.72E-04, 0.584E-04, 1.19E-04*"	1.52	1.87	7268			minimum age of intrusion		"K=1.25%, 1.28%, AND 1.26%; 40AR(RAD)=4.27 AND 4.12XE-6 CC/GM"	"AGE MAY BE A REDUCED AGE; THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6162	1	124.34	4	biotite	conventional K-Ar	60. YU-WT791	"4.72E-04, 0.584E-04, 1.19E-04*"	8.93	16.55	80					K=7.35% AND 7.47%	"AGE MAY BE THE AGE OF EMPLACEMENT OR MAY BE A RESET AGE; THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6162	2	144.23	4	hornblende	conventional K-Ar	60. YU-WT791	"4.72E-04, 0.584E-04, 1.19E-04*"	0.717	1.55	5349					"K=0.589%, 0.583%, AND 0.614%; 40AR(RAD)=3.57 AND 3.39XE-6 CC/GM"	"AGE MAY BE A PRIMARY AGE OR MAY BE SPURIOUS DUE TO EXCESS ARGON; THIS DATA ALSO REPORTED BY ARMSTRONG, TAUBENECK, AND HALES (1977)"
6166	1	128.26	5	sericite	conventional K-Ar	2	"4.72E-04, 0.585E-04, 1.19E-04*"	2.9	5.55						K=2.58% AND 2.24%; 40AR(RAD)=0.0221 AND 0.0223 PPM	AGE OF ALTERATION
6167	1	121.5	6	biotite	conventional K-Ar	2. VCF-23	"4.72E-04, 0.585E-04, 1.19E-04*"	3.04	5.5	72				SECONDARY BIOTITE (IMPURE CONCENTRATE)		AGE MAY INDICATE TIME OF MINERALIZATION OR MAY BE SPURIOUS
6168	1	104.08	5	biotite	conventional K-Ar	2. VCF-30	"4.72E-04, 0.585E-04, 1.19E-04*"	7.17	11.06	89				SECONDARY BIOTITE		AGE MAY INDICATE TIME OF MINERALIZATION OR MAY BE SPURIOUS
6174	1	47.28	1.9	hornblende	conventional K-Ar	9. FWC-72-69	"4.72E-04, 0.584E-04, 1.19E-04*"	0.488	0.3366	60			initial age disturbed by later metamorphism			
6175	1	44.73	1.3	biotite	conventional K-Ar	K1	"4.72E-04, 0.584E-04, 1.19E-04*"	8.43	5.497	74			age of uplift and cooling		K=7.00% AND 6.99%	"SAMPLE LISTED BY ARMSTRONG, 1976, ISOCHRON/WEST, NO. 15, P. 3, ENTRY NO. 22"
6183	1	44.36	1.3	biotite	conventional K-Ar	K10	"4.72E-04, 0.584E-04, 1.19E-04*"	8.73	5.644	76			age of uplift and cooling		K=7.31% AND 7.18%	"SAMPLE LISTED BY ARMSTRONG, 1976, ISOCHRON/WEST, NO. 15, P. 3, ENTRY NO. 21"
6233	1	54.8	1.6	biotite	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	9.08	7.274	94			maximum age of intrusion			
6234	1	50.87	1.5	biotite	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	9.1	6.76	75			age of intrusion			
6235	1	51.95	1.6	biotite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	9.18	6.966	92			maximum age of intrusion			
6236	1	50.56	1.5	biotite	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	9.06	6.688	93			age of intrusion			
6237	1	89.77	2.6	biotite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	8.98	11.9	96			initial age disturbed by later metamorphism			AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6237	2	94.99	2.8	hornblende	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	0.866	1.216	76			minimum age of intrusion			
6238	1	100.32	2.9	biotite	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	9.48	14.08	83			age of intrusion			
6239	1	82.09	2.4	biotite	conventional K-Ar	7	"4.72E-04, 0.584E-04, 1.19E-04*"	8.19	9.903	77			initial age disturbed by later metamorphism			AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6240	1	50	1.5	muscovite	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.19E-04*"	10.62	7.752	92			age of intrusion			
6241	1	52.08	1.5	biotite	conventional K-Ar	9	"4.72E-04, 0.584E-04, 1.19E-04*"	9.51	7.234	94			age of intrusion			
6242	1	89.19	2.6	biotite	conventional K-Ar	10	"4.72E-04, 0.584E-04, 1.19E-04*"	9.2	12.11	91			initial age disturbed by later metamorphism			AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6243	1	54.47	1.6	biotite	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.19E-04*"	9.03	7.19	94			age meaning uncertain (geologic factors)			"AGE MAY BE A BIT TOO OLD, EXCESS ARGON MAY BE PRESENT"
6243	2	50.04	1.5	muscovite	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.19E-04*"	10.83	7.912	89			age of intrusion	PRIMARY MUSCOVITE		
6244	1	52.85	1.5	biotite	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	9.1	7.026	65			age of intrusion			
6244	2	54.32	1.6	muscovite	conventional K-Ar	12	"4.72E-04, 0.584E-04, 1.19E-04*"	10.7	8.495	83			maximum age of intrusion			
6245	1	70.34	2	biotite	conventional K-Ar	13	"4.72E-04, 0.584E-04, 1.19E-04*"	9.49	9.8	95			initial age disturbed by later metamorphism			AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6246	1	100.44	2.9	biotite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	8.83	13.13	95			age meaning uncertain (geologic factors)			AGE MAY BE TOO OLD; EXCESS ARGON PRESENT?
6246	2	94.9	2.8	muscovite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	10.8	15.15	86			age of intrusion			
6247	1	106.74	3.1	biotite	conventional K-Ar	15	"4.72E-04, 0.584E-04, 1.19E-04*"	8.66	13.71	91			age of intrusion			
6248	1	110.41	3.2	biotite	conventional K-Ar	16	"4.72E-04, 0.584E-04, 1.19E-04*"	9.23	15.13	92			maximum age of intrusion			
6249	1	62.26	1.8	biotite	conventional K-Ar	17	"4.72E-04, 0.584E-04, 1.19E-04*"	9.35	8.527	94			initial age disturbed by later metamorphism			
6250	1	68.34	2	biotite	conventional K-Ar	18	"4.72E-04, 0.584E-04, 1.19E-04*"	9.28	9.306	83			initial age disturbed by later metamorphism			
6251	1	89.29	2.6	biotite	conventional K-Ar	19	"4.72E-04, 0.584E-04, 1.19E-04*"	8.59	11.32	94			initial age disturbed by later metamorphism			AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6252	1	86.67	2.5	biotite	conventional K-Ar	20	"4.72E-04, 0.584E-04, 1.19E-04*"	9.27	11.85	96			initial age disturbed by later metamorphism			AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6253	1	97.7	2.9	muscovite	conventional K-Ar	21	"4.72E-04, 0.584E-04, 1.19E-04*"	10.35	14.96	92			age of intrusion			
6254	1	98.82	2.9	biotite	conventional K-Ar	22	"4.72E-04, 0.584E-04, 1.19E-04*"	9.3	13.6	96			age of intrusion			
6255	1	98.62	2.9	biotite	conventional K-Ar	23	"4.72E-04, 0.584E-04, 1.19E-04*"	8.86	12.93	87			age of intrusion			
6256	1	103.63	3	biotite	conventional K-Ar	24	"4.72E-04, 0.584E-04, 1.19E-04*"	9.11	13.99	93			age of intrusion			
6256	2	103.83	3	muscovite	conventional K-Ar	24	"4.72E-04, 0.584E-04, 1.19E-04*"	10.58	16.28	95			age of intrusion			
6257	1	100.28	2.9	biotite	conventional K-Ar	25	"4.72E-04, 0.584E-04, 1.19E-04*"	8.42	12.5	93			age of intrusion	-60+100 MESH	"K2O=8.42% AND 8.42% (ENGELS AND OTHERS, 1976)"	
6257	2	99.8	2.9	hornblende	conventional K-Ar	25	"4.72E-04, 0.584E-04, 1.19E-04*"	0.836	1.235	81			age of intrusion	-140+200 MESH	"K2O=0.837% AND 0.835% (ENGELS AND OTHERS, 1976)"	
6258	1	80.39	2.4	biotite	conventional K-Ar	26	"4.72E-04, 0.584E-04, 1.19E-04*"	8.88	10.51	82			initial age disturbed by later metamorphism	-60+140 MESH	"K2O=8.88% AND 8.88% (ENGELS AND OTHERS, 1976)"	AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6258	2	87.98	2.6	muscovite	conventional K-Ar	26	"4.72E-04, 0.584E-04, 1.19E-04*"	10.77	13.98	91			initial age disturbed by later metamorphism		"K2O=10.77% AND 10.77% (ENGELS AND OTHERS, 1976)"	AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6259	1	92.95	3	biotite	conventional K-Ar	27	"4.72E-04, 0.584E-04, 1.19E-04*"	5.76	7.91	92			minimum age of intrusion			AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6259	2	98.62	3	muscovite	conventional K-Ar	27	"4.72E-04, 0.584E-04, 1.19E-04*"	9.73	14.2	92			age of intrusion			
6260	1	94.65	3	biotite	conventional K-Ar	28	"4.72E-04, 0.584E-04, 1.19E-04*"	8.72	12.2	93			minimum age of intrusion			
6261	1	102.66	2.8	biotite	conventional K-Ar	29	"4.72E-04, 0.584E-04, 1.19E-04*"	9.14	13.9	75			age of intrusion			
6262	1	79.89	3	biotite	conventional K-Ar	30	"4.72E-04, 0.584E-04, 1.19E-04*"	9.26	10.89	90			initial age disturbed by later metamorphism	-60 +140 MESH	"K2O=9.16%, 9.18%, 9.18%, AND 9.16% (ENGELS AND OTHERS, 1976)"	AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6262	2	86.42	4	muscovite	conventional K-Ar	30	"4.72E-04, 0.584E-04, 1.19E-04*"	10.64	13.56	89			initial age disturbed by later metamorphism	-100 +140 MESH	"K2O=10.64%, 10.70%, 10.61%, AND 10.70%"	AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM
6263	1	100.34	2.9	biotite	conventional K-Ar	31	"4.72E-04, 0.584E-04, 1.19E-04*"	8.63	12.82	86			age of intrusion			
6264	1	99.01	2.9	biotite	conventional K-Ar	32	"4.72E-04, 0.584E-04, 1.19E-04*"	8.64	12.66	95			age of intrusion			
6265	1	52.42	1.5	biotite	conventional K-Ar	33	"4.72E-04, 0.584E-04, 1.19E-04*"	8.96	6.861	90						AGE IS PROBABLY LOW
6266	1	50.55	1.5	biotite	conventional K-Ar	34	"4.72E-04, 0.584E-04, 1.19E-04*"	8.65	6.384	95						THIS IS PROBABLY A REDUCED AGE
6266	2	57.32	1.7	muscovite	conventional K-Ar	34	"4.72E-04, 0.584E-04, 1.19E-04*"	10.72	8.988	93						THIS IS PROBABLY A REDUCED AGE
6267	1	93.14	2.7	biotite	conventional K-Ar	35	"4.72E-04, 0.584E-04, 1.19E-04*"	8.64	11.89	92				-60 +140 MESH	"K2O=8.64% AND 8.64% (ENGELS AND OTHERS, 1976)"	PLUTON IS PROBABLY AROUND 100 M.Y. OLD
6267	2	96.63	2.8	muscovite	conventional K-Ar	35	"4.72E-04, 0.584E-04, 1.19E-04*"	10.72	15.32	86					"K2O=10.72% AND 10.73% (ENGELS AND OTHERS, 1976)"	PLUTON IS PROBABLY AROUND 100 M.Y. OLD
6268	1	91.98	2.7	biotite	conventional K-Ar	36	"4.72E-04, 0.584E-04, 1.19E-04*"	9.23	12.54	83			initial age disturbed by later metamorphism			
6269	1	48.92	1.4	biotite	conventional K-Ar	37	"4.72E-04, 0.584E-04, 1.19E-04*"	9.46	6.754	81			age of intrusion			
6270	1	94.18	2.8	biotite	conventional K-Ar	38	"4.72E-04, 0.584E-04, 1.19E-04*"	9.21	12.82	91			initial age disturbed by later metamorphism			
6271	1	50.8	1.5	biotite	conventional K-Ar	39	"4.72E-04, 0.584E-04, 1.19E-04*"	9.04	6.705	83			age of intrusion			
6272	1	50.22	1.5	biotite	conventional K-Ar	40	"4.72E-04, 0.584E-04, 1.19E-04*"	9.24	6.775	88			age of intrusion			
6272	2	49.9	1.5	muscovite	conventional K-Ar	40	"4.72E-04, 0.584E-04, 1.19E-04*"	10.7	7.794	92			age of intrusion			
6273	1	48.5	1.4	biotite	conventional K-Ar	41	"4.72E-04, 0.584E-04, 1.19E-04*"	8.47	5.995	81			age of intrusion			
6273	2	50.34	1.5	muscovite	conventional K-Ar	41	"4.72E-04, 0.584E-04, 1.19E-04*"	10.61	7.798	92			age of intrusion			
6274	1	97.55	2.8	biotite	conventional K-Ar	45	"4.72E-04, 0.584E-04, 1.19E-04*"	9.05	13.06	87			minimum age of intrusion			
6275	1	92.26	2.7	biotite	conventional K-Ar	46	"4.72E-04, 0.584E-04, 1.19E-04*"	9.18	12.51	91						APPEARS TO BE A REDUCED AGE
6276	1	48.09	1.4	biotite	conventional K-Ar	47	"4.72E-04, 0.584E-04, 1.19E-04*"	8.8	6.174	86						AGE IS PROBABLY A REDUCED AGE AND REFLECTS AN EOCENE THERMAL EVENT
6277	1	57.89	1.7	biotite	conventional K-Ar	48	"4.72E-04, 0.584E-04, 1.19E-04*"	9.28	7.86	40			initial age disturbed by later metamorphism			
6278	1	49.81	1.5	biotite	conventional K-Ar	49	"4.72E-04, 0.584E-04, 1.19E-04*"	9.1	6.616	76			age meaning uncertain (geologic factors)			
6279	1	42.75	1.2	biotite	conventional K-Ar	50	"4.72E-04, 0.584E-04, 1.19E-04*"	9.35	5.824	93			age not evaluated			
6280	1	45.58	1.3	biotite	conventional K-Ar	51	"4.72E-04, 0.584E-04, 1.19E-04*"	9.08	6.034	56			initial age disturbed by later metamorphism			PLUTON MAY BE AROUND 100 M.Y. OLD
6281	1	45.86	1.3	biotite	conventional K-Ar	52	"4.72E-04, 0.584E-04, 1.19E-04*"	8.81	5.891	91			initial age disturbed by later metamorphism			PLUTON MAY BE AROUND 100 M.Y. OLD
6281	2	57.48	1.7	hornblende	conventional K-Ar	52	"4.72E-04, 0.584E-04, 1.19E-04*"	0.777	0.6533	57			initial age disturbed by later metamorphism			PLUTON MAY BE AROUND 100 M.Y. OLD
6282	1	47.02	1.4	biotite	conventional K-Ar	53	"4.72E-04, 0.584E-04, 1.19E-04*"	9.26	6.351	94						THIS AGE MAY BE A REDUCED AGE AND MAY REFLECT AN EOCENE THERMAL EVENT
6283	1	47.95	1.4	biotite	conventional K-Ar	54	"4.72E-04, 0.584E-04, 1.19E-04*"	9.07	6.345	93			age of intrusion			
6283	2	57.69	1.7	hornblende	conventional K-Ar	54	"4.72E-04, 0.584E-04, 1.19E-04*"	1.66	1.401	76						INTERPRETATION OF THIS AGE IS DIFFICULT; AGE MAY BE SPURIOUS DUE TO EXCESS ARGON
6284	1	46.33	1.4	biotite	conventional K-Ar	55	"4.72E-04, 0.584E-04, 1.19E-04*"	9.16	6.189	91			age of intrusion			
6285	1	46.23	1.4	biotite	conventional K-Ar	56	"4.72E-04, 0.584E-04, 1.19E-04*"	9.39	6.33	90			age of intrusion			
6286	1	71.69	2.1	biotite	conventional K-Ar	57	"4.72E-04, 0.584E-04, 1.19E-04*"	9.44	9.94	92			initial age disturbed by later metamorphism			
6287	1	87.72	2.5	biotite	conventional K-Ar	58	"4.72E-04, 0.584E-04, 1.19E-04*"	8.94	11.57	94			initial age disturbed by later metamorphism			PLUTON MAY BE AROUND 100 M.Y. OLD
6288	1	85.58	2.5	biotite	conventional K-Ar	59	"4.72E-04, 0.584E-04, 1.19E-04*"	8.9	11.23	95			initial age disturbed by later metamorphism			PLUTON MAY BE AROUND 100 M.Y. OLD
6289	1	74.61	2.2	biotite	conventional K-Ar	60	"4.72E-04, 0.584E-04, 1.19E-04*"	8.78	9.629	90			age not evaluated			
6290	1	83.82	2.4	biotite	conventional K-Ar	61	"4.72E-04, 0.584E-04, 1.19E-04*"	8.84	10.92	91			age not evaluated			
6291	1	46.61	1.4	biotite	conventional K-Ar	62	"4.72E-04, 0.584E-04, 1.19E-04*"	9.09	6.179	90			age not evaluated			
6292	1	47.31	1.4	biotite	conventional K-Ar	63	"4.72E-04, 0.584E-04, 1.19E-04*"	9.41	6.494	91			age of intrusion			
6293	1	48.19	1.4	biotite	conventional K-Ar	64	"4.72E-04, 0.584E-04, 1.19E-04*"	9.5	6.68	72			age of intrusion		K2O=9.49% AND 9.52%	
6293	2	49.94	1.7	muscovite	conventional K-Ar	64	"4.72E-04, 0.584E-04, 1.19E-04*"	10.74	7.829	57			age of intrusion		K2O=10.73% AND 10.76%	
6294	1	48.42	1.6	biotite	conventional K-Ar	65	"4.72E-04, 0.584E-04, 1.19E-04*"	9.42	6.655	66			age of intrusion		K2O=9.40% AND 9.43%	
6294	2	48.65	1.9	muscovite	conventional K-Ar	65	"4.72E-04, 0.584E-04, 1.19E-04*"	10.66	7.568	70			age of intrusion		K2O=10.65% AND 10.67%	
6295	1	49.02	2.6	biotite	conventional K-Ar	66	"4.72E-04, 0.584E-04, 1.19E-04*"	9.17	6.56	24			minimum age of intrusion		"K2O=9.19% AND 9.22% (ENGELS AND OTHERS, 1976)"	
6295	2	54.18	1.6	muscovite	conventional K-Ar	66	"4.72E-04, 0.584E-04, 1.19E-04*"	10.74	8.504	75			age of intrusion		"K2O=10.73% AND 10.75% (ENGELS AND OTHERS, 1976)"	
6296	1	49.17	1.5	biotite	conventional K-Ar	67	"4.72E-04, 0.584E-04, 1.19E-04*"	8.57	6.15	84			initial age disturbed by later metamorphism			THIS AGE MAY INDICATE AN EOCENE THERMAL EVENT
6296	2	87.4	2.6	hornblende	conventional K-Ar	67	"4.72E-04, 0.584E-04, 1.19E-04*"	1.165	1.502	79			initial age disturbed by later metamorphism			
6297	1	48.79	1	biotite	conventional K-Ar	68	"4.72E-04, 0.584E-04, 1.19E-04*"	8.45	6.016	78			age of intrusion		"K2O=8.40%, 8.33%, AND 8.45% (ENGELS AND OTHERS, 1976)"	
6297	2	52.28	5	hornblende	conventional K-Ar	68	"4.72E-04, 0.584E-04, 1.19E-04*"	0.6078	0.4642	62			age of intrusion			
6298	1	47.83	1.3	biotite	conventional K-Ar	69	"4.72E-04, 0.584E-04, 1.19E-04*"	8.88	6.197	70			age of intrusion		"K2O=8.88% AND 8.88% (ENGELS AND OTHERS, 1976)"	
6298	2	47.99	1.7	hornblende	conventional K-Ar	69	"4.72E-04, 0.584E-04, 1.19E-04*"	0.689	0.4824	49			age of intrusion		"K2O=0.685% AND 0.693% (ENGELS AND OTHERS, 1976)"	
6299	1	95.52	2.8	biotite	conventional K-Ar	70	"4.72E-04, 0.584E-04, 1.19E-04*"	8.27	11.68	95			minimum age of intrusion			"ANALYTICAL DATA FROM E.H. MCKEE, USGS"
6299	2	102.72	3	muscovite	conventional K-Ar	70	"4.72E-04, 0.584E-04, 1.19E-04*"	10.33	15.72	93			maximum age of intrusion			"ANALYTICAL DATA FROM E.H. MCKEE, USGS"
6300	1	97.53	2.8	biotite	conventional K-Ar	71	"4.72E-04, 0.584E-04, 1.19E-04*"	9.08	13.1	94			age of intrusion			"ANALYTICAL DATA FROM E.H. MCKEE, USGS"
6300	2	99.3	2.8	muscovite	conventional K-Ar	71	"4.72E-04, 0.584E-04, 1.19E-04*"	10.75	15.8	93			age of intrusion			"ANALYTICAL DATA FROM E.H. MCKEE, USGS"
6301	1	49.52	1.5	biotite	conventional K-Ar	72	"4.72E-04, 0.584E-04, 1.19E-04*"	9.25	6.686	88			age of intrusion			"ANALYTICAL DATA FROM E.H. MCKEE, USGS"
6301	2	49.09	1.5	muscovite	conventional K-Ar	72	"4.72E-04, 0.584E-04, 1.19E-04*"	10.32	7.394	89			age of intrusion			"ANALYTICAL DATA FROM E.H. MCKEE, USGS"
6302	1	100.97	2.8	biotite	conventional K-Ar	73	"4.72E-04, 0.584E-04, 1.19E-04*"	9.13	13.65	97			age of intrusion		"K2O=9.13% AND 9.13% (ENGELS AND OTHERS, 1976)"	
6302	2	102.57	2.8	muscovite	conventional K-Ar	73	"4.72E-04, 0.584E-04, 1.19E-04*"	10.3	15.65	97			age of intrusion		"K2O=10.29% AND 10.30% (ENGELS AND OTHERS, 1976)"	
6303	1	100.71	3.2	biotite	conventional K-Ar	74	"4.72E-04, 0.584E-04, 1.19E-04*"	9.1	13.57	96			age of intrusion		"K2O=9.09% AND 9.12% (ENGELS AND OTHERS, 1976)"	
6304	1	49.59	1.5	biotite	conventional K-Ar	75	"4.72E-04, 0.584E-04, 1.19E-04*"	8.28	5.993	86						"AGE MAY BE A PRIMARY AGE OR A REDUCED AGE.  ANALYTICAL DATA FROM E.H. MCKEE, USGS"
6304	2	51.06	1.5	muscovite	conventional K-Ar	75	"4.72E-04, 0.584E-04, 1.19E-04*"	10.8	8.053	79						"AGE MAY BE A PRIMARY AGE OR A REDUCED AGE.  ANALYTICAL DATA FROM E.H. MCKEE, USGS"
6305	1	56.74	2	biotite	conventional K-Ar	76	"4.72E-04, 0.584E-04, 1.19E-04*"	9.12	7.568	86			age not evaluated		"K2O=9.11% AND 9.13% (ENGELS AND OTHERS, 1976)"	
6305	2	57.55	2	muscovite	conventional K-Ar	76	"4.72E-04, 0.584E-04, 1.19E-04*"	10.74	9.042	78			age not evaluated		"K2O=10.74% AND 10.75% (ENGELS AND OTHERS, 1976)"	
6306	1	95.59	2.6	biotite	conventional K-Ar	77	"4.72E-04, 0.584E-04, 1.19E-04*"	7.96	11.25	81			minimum age of intrusion		"K2O=7.93% AND 7.98% (ENGELS AND OTHERS, 1976)"	APPARENTLY LOW AGE MAY BE DUE TO ARGON LOSS CAUSED BY LATER PLUTONISM
6306	2	97.33	4	hornblende	conventional K-Ar	77	"4.72E-04, 0.584E-04, 1.19E-04*"	0.996	1.434	83			age of intrusion		"K2O=0.993% AND 0.998% (ENGELS AND OTHERS, 1976)"	
6307	1	79.87	2	muscovite	conventional K-Ar	78	"4.72E-04, 0.584E-04, 1.19E-04*"	10.24	12.04	92			initial age disturbed by later metamorphism		"K2O=10.21% AND 10.26% (ENGELS AND OTHERS, 1976)"	APPARENTLY LOW AGE PROBABLY DUE TO ARGON LOSS CAUSED BY LATER PLUTONISM
6308	1	51.18	1	biotite	conventional K-Ar	79	"4.72E-04, 0.584E-04, 1.19E-04*"	8.7	6.502	88			minimum age of intrusion	-35 +60 MESH	"K2O=8.68% AND 8.72% (ENGELS AND OTHERS, 1976)"	
6308	2	61.05	2	hornblende	conventional K-Ar	79	"4.72E-04, 0.584E-04, 1.19E-04*"	0.817	0.7304	67			age not evaluated	-100 +170 MESH	K2O=0.817% AND 0.817%	
6309	1	51.68	2	biotite	conventional K-Ar	80	"4.72E-04, 0.584E-04, 1.19E-04*"	8.82	6.657	88			age of intrusion	-32 +60 MESH	"K2O=8.80% AND 8.85% (ENGELS AND OTHERS, 1976)"	
6310	1	50.09	2	biotite	conventional K-Ar	81	"4.72E-04, 0.584E-04, 1.19E-04*"	8.88	6.493	89			minimum age of intrusion	-35 +115 MESH	"K2O=8.88% AND 8.88% (ENGELS AND OTHERS, 1976)"	
6310	2	64.26	2	hornblende	conventional K-Ar	81	"4.72E-04, 0.584E-04, 1.19E-04*"	0.874	0.8231	73			age not evaluated	-100 +140 MESH	"K2O=0.870% AND 0.878% (ENGELS AND OTHERS, 1976)"	
6311	1	78.1	2.3	biotite	conventional K-Ar	82	"4.72E-04, 0.584E-04, 1.19E-04*"	9.05	10.4	89			initial age disturbed by later metamorphism			
6312	1	155.53	4.6	biotite	conventional K-Ar	83	"4.72E-04, 0.584E-04, 1.19E-04*"	9.1	21.28	96			initial age disturbed by later metamorphism			AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM; TRUE EMPLACEMENT AGE IS CONSIDERED TO BE ABOUT 170 M.Y.
6312	2	165.14	4.8	hornblende	conventional K-Ar	83	"4.72E-04, 0.584E-04, 1.19E-04*"	1.597	3.976	86			minimum age of intrusion			TRUE EMPLACEMENT AGE IS CONSIDERED TO BE ABOUT 170 M.Y.
6313	1	100.13	2.9	biotite	conventional K-Ar	84	"4.72E-04, 0.584E-04, 1.19E-04*"	9.04	13.4	86			minimum age of intrusion			
6314	1	99.52	5	biotite	conventional K-Ar	85	"4.72E-04, 0.584E-04, 1.19E-04*"	8.71	12.83	85			initial age disturbed by later metamorphism		"K2O=8.61%, 8.61%, 8.63%, 8.63%, 8.70%, AND 8.72% (ENGELS AND OTHERS, 1976)"	AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM; TRUE EMPLACEMENT AGE MAY BE 200+ M.Y.
6314	2	198.41	7	hornblende	conventional K-Ar	85	"4.72E-04, 0.584E-04, 1.19E-04*"	1.44	4.348	89			minimum age of intrusion		"K2O=1.44%, 1.44%, 1.44%, AND 1.44% (ENGELS AND OTHERS, 1976)"	TRUE EMPLACEMENT AGE MAY BE 200+ M.Y.
6315	1	86.3	3	biotite	conventional K-Ar	86	"4.72E-04, 0.584E-04, 1.19E-04*"	8.18	10.41	72			initial age disturbed by later metamorphism	-80 +120 MESH	"K2O=8.17% AND 8.18% (ENGELS AND OTHERS, 1976)"	AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM; TRUE EMPLACEMENT AGE MAY BE 200+ M.Y.
6315	2	187.32	6	hornblende	conventional K-Ar	86	"4.72E-04, 0.584E-04, 1.19E-04*"	1.41	4.007	91			minimum age of intrusion	-150 +200 MESH	"K2O=1.41% AND 1.41% (ENGELS AND OTHERS, 1976)"	TRUE EMPLACEMENT AGE MAY BE 200+ M.Y.
6316	1	65.51	3	biotite	conventional K-Ar	87	"4.72E-04, 0.584E-04, 1.19E-04*"	8.83	8.481	30			initial age disturbed by later metamorphism	-45 +80 MESH	"K2O=8.81% AND 8.84% (ENGELS AND OTHERS, 1976)"	AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM; TRUE EMPLACEMENT AGE MAY BE 200+ M.Y.
6316	2	145.94	5	hornblende	conventional K-Ar	87	"4.72E-04, 0.584E-04, 1.19E-04*"	1.39	3.042	89			initial age disturbed by later metamorphism		"K2O=1.38% AND 1.40% (ENGELS AND OTHERS, 1976)"	AGE IS PROBABLY LOW DUE TO LOSS OF ARGON CAUSED BY LATER PLUTONISM; TRUE EMPLACEMENT AGE MAY BE 200+ M.Y.
6317	1	52.58	2	biotite	conventional K-Ar	88	"4.72E-04, 0.584E-04, 1.19E-04*"	9.45	7.259	89			initial age disturbed by later metamorphism	-60+140 MESH	"K2O=9.33%, 9.38%, 9.42%, 9.47%, 9.36%, AND 9.36% (ENGELS AND OTHERS, 1976)"	
6317	2	59.25	2	muscovite	conventional K-Ar	88	"4.72E-04, 0.584E-04, 1.19E-04*"	10.66	9.244	91			initial age disturbed by later metamorphism	-100+140 MESH	"K2O=10.64%, 10.69%, 10.63%, AND 10.70% (ENGELS AND OTHERS, 1976)"	
6318	1	57.85	2	biotite	conventional K-Ar	89	"4.72E-04, 0.584E-04, 1.19E-04*"	9.36	7.922	90			initial age disturbed by later metamorphism	-35+60 MESH	"K2O=9.34% AND 9.38% (ENGELS AND OTHERS, 1976)"	
6318	2	69.15	2	muscovite	conventional K-Ar	89	"4.72E-04, 0.584E-04, 1.19E-04*"	10.76	10.92	76			initial age disturbed by later metamorphism		"K2O=10.75% AND 10.78% (ENGELS AND OTHERS, 1976)"	
6319	1	100.71	3	biotite	conventional K-Ar	90	"4.72E-04, 0.584E-04, 1.19E-04*"	8.41	12.54	92			age of intrusion	-35+60 MESH	"K2O=8.40% AND 8.41% (ENGELS AND OTHERS, 1976)"	"ZIRCON FROM THIS ROCK GAVE A LEAD-ALPHA AGE OF 99 M.Y. (LARSON AND OTHERS, 1958)"
6319	2	98.8	3	hornblende	conventional K-Ar	90	"4.72E-04, 0.584E-04, 1.19E-04*"	0.686	1.003	80			age of intrusion		"K2O=0.682% AND 0.689% (ENGELS AND OTHERS, 1976)"	
6320	1	60.49	2	biotite	conventional K-Ar	91	"4.72E-04, 0.584E-04, 1.19E-04*"	7.9	6.996	54			initial age disturbed by later metamorphism	-60+80 MESH	"K2O=7.87% AND 7.92% (ENGELS AND OTHERS, 1976)"	
6320	2	86.41	2	muscovite	conventional K-Ar	91	"4.72E-04, 0.584E-04, 1.19E-04*"	10.72	13.66	89			initial age disturbed by later metamorphism	-60+80 MESH	"K2O=10.72% AND 10.73% (ENGELS AND OTHERS, 1976)"	
6321	1	74.82	2	biotite	conventional K-Ar	92	"4.72E-04, 0.584E-04, 1.19E-04*"	8.7	9.568	70			initial age disturbed by later metamorphism	-60+140 MESH	"K2O=8.61% AND 8.63% (ENGELS AND OTHERS, 1976)"	
6321	2	91.18	6	muscovite	conventional K-Ar	92	"4.72E-04, 0.584E-04, 1.19E-04*"	10.68	14.38	86			initial age disturbed by later metamorphism	-140+200 MESH	"K2O=10.67%, 10.69%, 10.66%, AND 10.69% (ENGELS AND OTHERS, 1976)"	
6337	1	546.15		hornblende	conventional K-Ar	799H	"4.72E-04, 0.584E-04, 1.19E-04*"	0.361	3.315	77			initial age disturbed by later metamorphism	HORNBLENDE PLUS 10% PLAGIOCLASE AND 5% QUARTZ	K=0.295% AND 0.304%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR SAMPLES IN THIS ARTICLE HAVE BEEN SUPERCEDED BY ARMSTRONG (1976, ISOCHRON/WEST, NO. 15, P. 12-31); THE CHANGES ARE MINOR; MANY NEW SAMPLES ARE LISTED"
6339	1	59.57	1.7	biotite	conventional K-Ar	2. YU-873	"4.72E-04, 0.584E-04, 1.19E-04*"	8.97	7.822	83			age of metamorphic crystallization		"K=7.56%, 7.42%, AND 7.38%"	THIS AGE ALSO REPORTED BY ARMSTRONG AND OTHERS (1974)
6339	2	65.29	1.9	muscovite	conventional K-Ar	2. YU-873	"4.72E-04, 0.584E-04, 1.19E-04*"	9.71	9.294	70			age of metamorphic crystallization		K=8.02% AND 8.10%	THIS AGE ALSO REPORTED BY ARMSTRONG AND OTHERS (1974)
6340	1	72.28	2.1	biotite	conventional K-Ar	3. YU-874	"4.72E-04, 0.584E-04, 1.19E-04*"	3.56	3.78	46			maximum age of volcanism	15% CHLORITE PRESENT	K=2.96% AND 2.95%	
6341	1	43.33	1.3	biotite	conventional K-Ar	4. YU-860	"4.72E-04, 0.584E-04, 1.19E-04*"	7.54	4.761	37			maximum age of volcanism	9% CHLORITE PRESENT	K=6.26% AND 6.26%	THIS AGE ALSO REPORTED BY ARMSTRONG AND OTHERS (1974)
6342	1	39.35	1.1	biotite	conventional K-Ar	5. YU-861	"4.72E-04, 0.584E-04, 1.19E-04*"	9.16	5.247	63			maximum age of volcanism		K=7.67% AND 7.53%	THIS AGE ALSO REPORTED BY ARMSTRONG AND OTHERS (1974)
6343	1	38.9	1.1	biotite	conventional K-Ar	6. YU-865	"4.72E-04, 0.584E-04, 1.19E-04*"	8.52	4.823	72			maximum age of volcanism		K=7.10% AND 7.05%	THIS AGE ALSO REPORTED BY ARMSTRONG AND OTHERS (1974)
6344	1	38.4	1.3	biotite	conventional K-Ar	7. YU-868	"4.72E-04, 0.584E-04, 1.19E-04*"	8.45	4.725	53			maximum age of volcanism		K=6.97% AND 7.06%	THIS AGE ALSO REPORTED BY ARMSTRONG AND OTHERS (1974)
6345	1	37.11	1.1	whole rock	conventional K-Ar	8. YU-870	"4.72E-04, 0.584E-04, 1.19E-04*"	4.78	2.58	49					K=3.94% AND 4.00%	AGE MAY REFLECT MOVEMENT ON THE FAULT.  THIS AGE ALSO REPORTED BY ARMSTRONG AND OTHERS (1974)
6346	1	47.34	0.5	whole rock	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	4.64	3.204	54						THE AGE APPARENTLY REFLECTS AN EOCENE THERMAL EVENT
6347	1	47.88	0.6	whole rock	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	2.87	2.005	35						THE AGE APPARENTLY REFLECTS AN EOCENE THERMAL EVENT
6348	1	61.39	1.4	whole rock	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	4.43	3.983	53			initial age disturbed by later metamorphism			
6349	1	193.87	2	whole rock	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	3.94	11.61	63			initial age disturbed by later metamorphism			
6350	1	95.85	5	hornblende	conventional K-Ar	18. L-62-327A	"4.72E-04, 0.585E-04, 1.19E-04*"	1.51	2.14	72			age of later metamorphism			"INITIAL AGE IS PROBABLY ABOUT 600 M.Y. (SEE LEONARD AND STERN, 1966); THIS AGE ALSO REPORTED BY LEONARD AND STERN, 1966"
6352	1	267.63	8	whole rock	conventional K-Ar	30. YU-787	"4.72E-04, 0.584E-04, 1.19E-04*"	1.94	8.058	12			age not evaluated		K=1.63% AND 1.59%	
6353	1	347.4	10	whole rock	conventional K-Ar	31. YU-880	"4.72E-04, 0.584E-04, 1.19E-04*"	1.94	10.7	19			"sample contains excess radiogenic argon, age is too old"	MUSCOVITE WELL RECRYSTALLIZED	K=1.62% AND 1.60%	ARMSTRONG STATES THAT SPECIMEN IS FROM EXCESS-AR HALO OF IDAHO BATHOLITH
6354	1	337.35	10	whole rock	conventional K-Ar	32. YU-879	"4.72E-04, 0.584E-04, 1.19E-04*"	4.14	22.11	90			"sample contains excess radiogenic argon, age is too old"	MUSCOVITE WELL RECRYSTALLIZED	K=3.47% AND 3.40%	ARMSTRONG STATES THAT SPECIMEN IS FROM EXCESS-AR ZONE OR HALO OF IDAHO BATHOLITH
6355	1	399.69	12	whole rock	conventional K-Ar	33. YU-878	"4.72E-04, 0.584E-04, 1.19E-04*"	3.42	22.03	88			"sample contains excess radiogenic argon, age is too old"	MUSCOVITE WELL RECRYSTALLIZED	"K=2.83%, 2.85%, AND 2.83%"	ARMSTRONG STATES THAT THE SPECIMEN IS FROM EXCESS-AR HALO OF IDAHO BATHOLITH
6356	1	334.54	4	whole rock	conventional K-Ar	36. 69-7-2B	"4.72E-04, 0.585E-04, 1.19E-04*"	3.53	18.68	89			initial age disturbed by weathering			
6357	1	951.83	28	whole rock	conventional K-Ar	37. YU-1024	"4.72E-04, 0.584E-04, 1.19E-04*"	0.21	3.79	9081			"sample contains excess radiogenic argon, age is too old"		K=0.176% AND 0.173%	
6357	2	769.59	24	chlorite group	conventional K-Ar	37. YU-1024	"4.72E-04, 0.584E-04, 1.19E-04*"	0.011	0.152	5			"sample contains excess radiogenic argon, age is too old"		K=0.009% AND 0.009%	
6358	1	666.11	20	whole rock	conventional K-Ar	38. YU-1025	"4.72E-04, 0.584E-04, 1.19E-04*"	0.045	0.522	40			"sample contains excess radiogenic argon, age is too old"		K=0.037% AND 0.037%	
6358	2	478.02	14	actinolite	conventional K-Ar	38. YU-1025	"4.72E-04, 0.584E-04, 1.19E-04*"	0.025	0.197	1311			"sample contains excess radiogenic argon, age is too old"	ACTINOLITE-CHLORITE MIXTURE	K=0.021% AND 0.021%; 40AR(RAD)=0.425 AND 0.460XE-6 CC/GM	
6359	1	284.15	4	sericite	conventional K-Ar	39	"4.72E-04, 0.585E-04, 1.19E-04*"	6.64	29.42	9898			initial age disturbed by later metamorphism		K=5.52% AND 5.51%; 40AR(RAD)=65.53 AND 66.34XE-6 CC/GM	"THIS AGE ALSO REPORTED BY SORENSEN (1972, P. 42)"
6360	1	517.48	15	sericite	conventional K-Ar	40	"4.72E-04, 0.585E-04, 1.19E-04*"	3.77	32.53	90						"MAY BE THE APPROXIMATE TIME OF ALTERATION.  THIS AGE ALSO REPORTED BY SORENSEN (1972, P.42)"
6361	1	548.7	16	sericite	conventional K-Ar	41	"4.72E-04, 0.585E-04, 1.19E-04*"	4.47	41.27	97			initial age disturbed by later metamorphism	SERICITE IN BEDDING PLANES		"THIS AGE ALSO REPORTED BY SORENSEN (1972, P.42)"
6362	1	519.16	6	whole rock	conventional K-Ar	42. 69-7-5A	"4.72E-04, 0.585E-04, 1.19E-04*"	4.04	34.99	88			initial age disturbed by later metamorphism			
6363	1	1044.42	12	whole rock	conventional K-Ar	43. 69-7-4C	"4.72E-04, 0.585E-04, 1.19E-04*"	4.48	91.24	96			maximum age of volcanism			
6365	1	1133.07	40	hornblende	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	1	22.7	94			age of intrusion	HORNBLENDE-PYROXENE MIXTURE		"THIS AGE REPORTED BY SORENSEN (1972, P.26)"
6366	1	572.93	14	whole rock	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	0.46	4.466	64			minimum age of intrusion			"THIS AGE ALSO REPORTED BY SORENSEN (1972, P.26)"
6379	1	451.71	15	biotite	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	7.72	57.05	9192			age of intrusion		K=6.32% AND 6.50%; 40AR(RAD)=0.230 AND 0.226 PPM	
6387	1	55.75	1.6	biotite	conventional K-Ar	7. YU-798	"4.72E-04, 0.584E-04, 1.19E-04*"	7.11	5.796	80			initial age disturbed by later metamorphism	BIOTITE-CHLORITE(12%) MIXTURE	K=5.95% AND 5.85%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6388	1	133.41	4	biotite	conventional K-Ar	9. YU-799	"4.72E-04, 0.584E-04, 1.19E-04*"	6.23	12.42	81			initial age disturbed by later metamorphism	BIOTITE-CHLORITE(30%) MIXTURE	K=5.18% AND 5.17%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6389	1	544.87	16	hornblende	conventional K-Ar	8. YU-799H	"4.72E-04, 0.584E-04, 1.19E-04*"	0.361	3.306	77			initial age disturbed by later metamorphism	HORNBLENDE WITH 10% PLAGIOCLASE AND 5% QUARTZ	"K=0.295%, 0.304%, AND 0.300%"	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6390	1	78.01	2.3	biotite	conventional K-Ar	10. YU-800	"4.72E-04, 0.584E-04, 1.19E-04*"	8.11	9.308	88			initial age disturbed by later metamorphism	BIOTITE-CHLORITE(12%) MIXTURE	"K=6.73%, 6.58%, AND 6.88%"	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6392	1	53.73	1.6	biotite	conventional K-Ar	11. YU-802	"4.72E-04, 0.584E-04, 1.19E-04*"	8.99	7.059	85			initial age disturbed by later metamorphism		K=7.44% AND 7.49%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6393	1	44.54	1.3	biotite	conventional K-Ar	12. YU-803	"4.72E-04, 0.585E-04, 1.19E-04*"	7.08	4.596	72			initial age disturbed by later metamorphism	BIOTITE WITH 17% CHLORITE AND KAOLINITE	"K=5.86%, 5.88%, AND 5.90%"	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6394	1	68.66	2	biotite	conventional K-Ar	13. YU-822	"4.72E-04, 0.584E-04, 1.19E-04*"	8.49	8.554	83			initial age disturbed by later metamorphism		K=7.06% AND 7.03%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6395	1	23.47	0.6	biotite	conventional K-Ar	14. YU-951	"4.72E-04, 0.584E-04, 1.19E-04*"	8.75	2.976	73			initial age disturbed by later metamorphism		K=7.29% AND 7.23%	
6399	1	420.29	12	hornblende	conventional K-Ar	16. YU-833A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.317	2.16	79			initial age disturbed by later metamorphism	IMPURE HORNBLENDE CONCENTRATE	K=0.265% AND 0.262%	
6400	1	814.17	24	hornblende	conventional K-Ar	16. YU-833B	"4.72E-04, 0.584E-04, 1.19E-04*"	0.322	4.77	60			initial age disturbed by later metamorphism	IMPURE HORNBLENDE CONCENTRATE	K=0.276% AND 0.258%	
6401	1	1004.33	30	hornblende	conventional K-Ar	16. YU-833C	"4.72E-04, 0.584E-04, 1.19E-04*"	0.354	6.849	82			initial age disturbed by later metamorphism	IMPURE HORNBLENDE CONCENTRATE	K=0.285% AND 0.302%	
6402	1	31.36	0.9	muscovite	conventional K-Ar	3. YU-804	"4.72E-04, 0.584E-04, 1.19E-04*"	11.07	5.042	72			initial age disturbed by later metamorphism		K=9.20% AND 9.18%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6403	1	39.7	1.3	muscovite	conventional K-Ar	4. YU-806	"4.72E-04, 0.584E-04, 1.19E-04*"	7.44	4.3	81			initial age disturbed by later metamorphism	MUSCOVITE WITH 10% QUARTZ AND 2% CHLORITE	K=5.64% AND 6.72%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6404	1	25.6	0.8	muscovite	conventional K-Ar	5. YU-819	"4.72E-04, 0.584E-04, 1.19E-04*"	10.91	4.05	84			initial age disturbed by later metamorphism		K=9.10% AND 9.01%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6405	1	28.51	0.8	muscovite	conventional K-Ar	6. YU-823	"4.72E-04, 0.584E-04, 1.19E-04*"	9.38	3.88	72			initial age disturbed by later metamorphism		"K=7.65%, 7.86%, AND 7.87%"	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6406	1	75.24	2	biotite	conventional K-Ar	14. YU-ALB-1757	"4.72E-04, 0.584E-04, 1.19E-04*"	9.02	9.977	77			initial age disturbed by later metamorphism	FINE BIOTITE	K=7.49% AND 7.48%	
6406	2	83.47	2.5	biotite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04*"	8.7	10.7	15			initial age disturbed by later metamorphism	COARSE BIOTITE	K=7.23% AND 7.22%	
6407	1	75.22	2	biotite	conventional K-Ar	2. YU-ALB-298	"4.72E-04, 0.584E-04, 1.19E-04*"	8.36	9.245	72			initial age disturbed by later metamorphism	BIOTITE-MUSCOVITE MIXTURE PLUS 5% CHLORITE	"K=6.88%, 6.89%, AND 7.05%"	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6408	1	76.75	2	whole rock	conventional K-Ar	7. YU-ALB-461	"4.72E-04, 0.584E-04, 1.19E-04*"	3.57	4.03	76			initial age disturbed by later metamorphism		K=2.98% AND 2.95%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6409	1	29.53	0.9	phlogopite	conventional K-Ar	8. YU-ALB-285	"4.72E-04, 0.584E-04, 1.19E-04*"	7.98	3.42	69			initial age disturbed by later metamorphism		K=6.60% AND 6.65%	
6410	1	28.02	0.8	muscovite	conventional K-Ar	9. YU-ALB-1005	"4.72E-04, 0.584E-04, 1.19E-04*"	9.47	3.85	79			initial age disturbed by later metamorphism		K=7.85% AND 7.88%	
6411	1	67.81	2	whole rock	conventional K-Ar	10. YU-ALB-1290	"4.72E-04, 0.584E-04, 1.19E-04*"	1.95	1.94	7674			initial age disturbed by later metamorphism		K=1.63% AND 1.61%; 40AR(RAD)=4.38 AND 4.30XE-6 CC/GM	
6412	1	25.95	0.8	whole rock	conventional K-Ar	11. YU-ALB-1361	"4.72E-04, 0.584E-04, 1.19E-04*"	4.89	1.84	65			initial age disturbed by later metamorphism		K=4.05% AND 4.07%	
6413	1	73.66	2	hornblende	conventional K-Ar	12. YU-ALB-1408	"4.72E-04, 0.584E-04, 1.19E-04*"	0.376	0.407	37			initial age disturbed by later metamorphism		K=0.310% AND 0.315%	
6414	1	25.1	2	muscovite	conventional K-Ar	13. YU-ALB-1446	"4.72E-04, 0.584E-04, 1.19E-04*"	10.22	3.72	45			initial age disturbed by later metamorphism		K=8.50% AND 8.47%	
6415	1	36.94	1	whole rock	conventional K-Ar	15. YU-ALB-1871C	"4.72E-04, 0.584E-04, 1.19E-04*"	3.22	1.73	73			initial age disturbed by later metamorphism		K=2.67% AND 2.67%	
6416	1	33.53	1	biotite	conventional K-Ar	16. YU-ALB-1879	"4.72E-04, 0.584E-04, 1.19E-04*"	8.64	4.21	6458			initial age disturbed by later metamorphism		K=7.15% AND 7.19%; 40AR(RAD)=9.53 AND 9.33XE-6 CC/GM	
6417	1	72.16	2	biotite	conventional K-Ar	17. YU-ALB-2115	"4.72E-04, 0.584E-04, 1.19E-04*"	6.26	6.635	61			initial age disturbed by later metamorphism	BIOTITE-CHLORITE MIXTURE	K=5.23% AND 5.17%	
6418	1	32.1	0.9	whole rock	conventional K-Ar	18. YU-ALB-2121	"4.72E-04, 0.584E-04, 1.19E-04*"	2.96	1.38	63			initial age disturbed by later metamorphism		K=2.45% AND 2.46%	
6419	1	165.08	5	hornblende	conventional K-Ar	19. YU-ALB-2262	"4.72E-04, 0.584E-04, 1.19E-04*"	0.313	0.779	5555					K=0.259% OR 0.260%; 40AR(RAD)=1.67 AND 1.82XE-6 CC/GM	A MINIMUM AGE FOR THE METAMORPHIC EVENT OR A SPURIOUS AGE
6420	1	21.14	0.6	biotite	conventional K-Ar	5. YU-795	"4.72E-04, 0.584E-04, 1.19E-04*"	8.69	2.66	56			initial age disturbed by later metamorphism		K=7.15% AND 7.27%	AGE INDICATES A MIOCENE THERMAL EVENT
6421	1	19.47	0.6	biotite	conventional K-Ar	6. YU-942	"4.72E-04, 0.584E-04, 1.19E-04*"	8.87	2.5	45			initial age disturbed by later metamorphism		K=7.43% AND 7.30%	AGE INDICATES A MIOCENE THERMAL EVENT
6422	1	19.91	0.6	muscovite	conventional K-Ar	7. YU-943	"4.72E-04, 0.584E-04, 1.19E-04*"	8.57	2.47	58			initial age disturbed by later metamorphism		K=7.17% AND 7.05%	AGE INDICATES A MIOCENE THERMAL EVENT
6422	2	19.38	0.6	biotite	conventional K-Ar	7. YU-943	"4.72E-04, 0.584E-04, 1.19E-04*"	8.52	2.39	67			initial age disturbed by later metamorphism		K=7.05% AND 7.10%	AGE INDICATES A MIOCENE THERMAL EVENT
6423	1	17.96	0.5	biotite	conventional K-Ar	8. YU-945	"4.72E-04, 0.584E-04, 1.19E-04*"	8.12	2.11	68			initial age disturbed by later metamorphism		K=6.69% AND 6.79%	AGE INDICATES A MIOCENE THERMAL EVENT
6424	1	16.56	0.5	muscovite	conventional K-Ar	9. YU-947	"4.72E-04, 0.584E-04, 1.19E-04*"	9.81	2.35	48			initial age disturbed by later metamorphism		K=8.12% AND 8.16%	AGE INDICATES A MIOCENE THERMAL EVENT
6425	1	18.14	0.5	muscovite	conventional K-Ar	10. YU-948	"4.72E-04, 0.584E-04, 1.19E-04*"	10.44	2.74	56			initial age disturbed by later metamorphism		K=8.75% AND 8.58%	AGE INDICATES A MIOCENE THERMAL EVENT
6426	1	19.11	0.6	biotite	conventional K-Ar	11. YU-949	"4.72E-04, 0.584E-04, 1.19E-04*"	8.82	2.44	69			initial age disturbed by later metamorphism		K=7.35% AND 7.30%	AGE INDICATES A MIOCENE THERMAL EVENT
6427	1	19.8	0.6	biotite	conventional K-Ar	12. YU-950	"4.72E-04, 0.584E-04, 1.19E-04*"	9.07	2.6	66			initial age disturbed by later metamorphism		K=7.55% AND 7.50%	AGE INDICATES A MIOCENE THERMAL EVENT
6428	1	19.62	0.6	muscovite	conventional K-Ar	17. YU-941	"4.72E-04, 0.584E-04, 1.19E-04*"	9.93	2.82	57					K=8.23% AND 8.25%	AGE INDICATES A MIOCENE THERMAL EVENT
6429	1	20.46	0.6	muscovite	conventional K-Ar	18. YU-944	"4.72E-04, 0.584E-04, 1.19E-04*"	10.26	3.04	63					K=8.60% AND 8.43%	AGE INDICATES A MIOCENE THERMAL EVENT
6430	1	21.17	0.6	muscovite	conventional K-Ar	19. YU-946	"4.72E-04, 0.584E-04, 1.19E-04*"	9.46	2.9	61					K=7.83% AND 7.87%	AGE INDICATES A MIOCENE THERMAL EVENT
6431	1	21.35	0.6	biotite	conventional K-Ar	7. YU-936	"4.72E-04, 0.584E-04, 1.19E-04*"	8.96	2.77	48					K=7.37% AND 7.51%	AGE INDICATES A MIOCENE THERMAL EVENT
6432	1	19.08	0.6	biotite	conventional K-Ar	9. YU-937	"4.72E-04, 0.584E-04, 1.19E-04*"	7.75	2.14	45					K=6.50% AND 6.37%	AGE INDICATES A MIOCENE THERMAL EVENT
6433	1	21.43	0.6	biotite	conventional K-Ar	9. YU-938	"4.72E-04, 0.584E-04, 1.19E-04*"	8.44	2.62	68					K=7.05% AND 6.97%	AGE INDICATES A MIOCENE THERMAL EVENT
6433	2	29.4	0.9	muscovite	conventional K-Ar	9. YU-938	"4.72E-04, 0.584E-04, 1.19E-04*"	9.21	3.93	51			initial age disturbed by later metamorphism		K=7.69% AND 7.60%	
6434	1	20.72	0.6	biotite	conventional K-Ar	10. YU-939	"4.72E-04, 0.584E-04, 1.19E-04*"	8.6	2.58	49					K=7.15% AND 7.13%	AGE INDICATES A MIOCENE THERMAL EVENT
6434	2	25.3	0.7	muscovite	conventional K-Ar	10. YU-939	"4.72E-04, 0.584E-04, 1.19E-04*"	9.46	3.47	67			initial age disturbed by later metamorphism		K=7.85% AND 7.86%	
6436	1	22.12	0.6	muscovite	conventional K-Ar	11. YA-940	"4.72E-04, 0.584E-04, 1.19E-04*"	10.08	3.23	42			initial age disturbed by later metamorphism		"K=8.47%, 8.28%, AND 8.35%"	
6437	1	23.38	0.7	biotite	conventional K-Ar	5. YU-796	"4.72E-04, 0.584E-04, 1.19E-04*"	9.27	3.14	65					K=7.67% AND 7.72%	A COOLING AGE
6438	1	22.07	0.6	biotite	conventional K-Ar	6. YU-797	"4.72E-04, 0.584E-04, 1.19E-04*"	8.29	2.65	55					K2O=6.92% AND 6.84%	"A COOLING AGE.  THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6438	2	25.12	0.7	muscovite	conventional K-Ar	6. YU-797	"4.72E-04, 0.584E-04, 1.19E-04*"	10.49	3.82	65					K=8.70% AND 8.72%	"A COOLING AGE.  THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6440	1	21.39	0.6	biotite	conventional K-Ar	7. YU-814	"4.72E-04, 0.584E-04, 1.19E-04*"	8.75	2.71	58					K=7.24% AND 7.29%	"A COOLING AGE.  THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6441	1	23.84	0.7	muscovite	conventional K-Ar	8. YU-816	"4.72E-04, 0.584E-04, 1.19E-04*"	10.45	3.61	38					K=8.73% AND 8.62%	"A COOLING AGE.  THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6443	1	25.03	0.7	muscovite	conventional K-Ar	9. YU-817	"4.72E-04, 0.584E-04, 1.19E-04*"	10.28	3.73	54					K=8.60% AND 8.46%	"A COOLING AGE.  THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6443	2	16.4	0.5	biotite	conventional K-Ar	9. YU-817	"4.72E-04, 0.584E-04, 1.19E-04*"	6.45	1.53	3235			age not evaluated	BIOTITE WITH 8% CHLORITE	K=5.38% AND 5.32%; 40AR(RAD)=3.39 AND 3.45XE-6 CC/GM	
6444	1	23.01	0.6	biotite	conventional K-Ar	10. YU-820	"4.72E-04, 0.584E-04, 1.19E-04*"	8.82	2.94	56					"K=7.47%, 7.19%, AND 7.31%"	"A COOLING AGE.  THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6445	1	21.27	0.6	biotite	conventional K-Ar	11. YU-821	"4.72E-04, 0.584E-04, 1.19E-04*"	8.7	2.68	58					K=7.19% AND 7.25%	"A COOLING AGE.  THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6445	2	24.76	0.7	muscovite	conventional K-Ar	11. YU-821	"4.72E-04, 0.584E-04, 1.19E-04*"	9.78	3.51	56					K=8.14% AND 8.09%	A COOLING AGE
6447	1	20.69	0.6	biotite	conventional K-Ar	12. YU-ALB2235	"4.72E-04, 0.584E-04, 1.19E-04*"	8.01	2.4	58					K=6.58% AND 6.71%	A COOLING AGE
6449	1	24.59	0.7	muscovite	conventional K-Ar	13. YU-813	"4.72E-04, 0.584E-04, 1.19E-04*"	10.55	3.76	82			minimum age of intrusion		K=8.75% AND 8.76%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6449	2	28.24	0.8	orthoclase	conventional K-Ar	13. YU-813	"4.72E-04, 0.584E-04, 1.19E-04*"	13.09	5.363	77			maximum age of intrusion		K=10.85% AND 10.88%	
6450	1	25.4	0.7	muscovite	conventional K-Ar	15. YU-815	"4.72E-04, 0.584E-04, 1.19E-04*"	10.67	3.93	58			minimum age of intrusion		K=8.86% AND 8.85%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6450	2	32.7	1	microcline	conventional K-Ar	15. YU-815	"4.72E-04, 0.584E-04, 1.19E-04*"	12.29	5.839	6777					K=10.13% AND 10.27%; 40AR(RAD)=13.03 AND 13.14XE-6 CC/GM	AGE APPEARS TOO OLD
6451	1	25.93	0.8	muscovite	conventional K-Ar	16. YU-818	"4.72E-04, 0.584E-04, 1.19E-04*"	10.53	3.96	86			age of intrusion		K=8.78% AND 8.70%	"THE AGE, ANALYTICAL DATA, AND LOCATION FOR THIS SAMPLE AS REPORTED BY ARMSTRONG AND HILLS (1967) ARE SUPERCEDED BY THE ABOVE"
6451	2	25.3	0.7	microcline	conventional K-Ar	16. YU-818	"4.72E-04, 0.584E-04, 1.19E-04*"	12.98	4.761	66			age of intrusion		K=11.02% AND 10.53%	
6478	1	62.99	2.2	whole rock	conventional K-Ar	WHITE CLOUD	"4.72E-04, 0.585E-04, 1.19E-04*"	0.389	0.359	70				-30 +70 MESH	K=0.323% BY ISOTOPE DILUTION	AGE OF MINERALIZATION
6479	1	60.53	2.1	muscovite	conventional K-Ar	CANNIVAN	"4.72E-04, 0.585E-04, 1.19E-04*"	11.318	10.03	80					K=9.395% BY ISOTOPE DILUTION	AGE OF MINERALIZATION
6480	1	42.41	1.4	muscovite	conventional K-Ar	(NOT GIVEN)	"4.962E-04, 0.581E-04, 1.1167E-04*"	11.13	6.876	79			age of intrusion		K=9.24%	AGE MAY ALSO DATE THE MINERALIZATION
6481	1	66.8	2.5	biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion	PRIMARY ROCK BIOTITE	NO ANALYTICAL DATA GIVEN	
6482	1	68	2.5	biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion	PRIMARY ROCK BIOTITE	NO ANALYTICAL DATA GIVEN	
6483	1	62.5	2.3	muscovite	conventional K-Ar	(NOT GIVEN)	no decay constants given							COARSE HYDROTHERMAL MUSCOVITE	NO ANALYTICAL DATA GIVEN	PROBABLE AGE OF MINERALIZATION
6484	1	55.3	2	adularia	conventional K-Ar	(NOT GIVEN)	no decay constants given								NO ANALYTICAL DATA GIVEN	TIME OF MINERALIZATION--THIS AGE MAY BE LOW.  ARMSTRONG AND OTHERS (1978) REPORTED AN AGE OF 59.1 M.Y. FOR TIME OF MINERALIZATION.
6543	1	106.96	4	hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.81	1.285	87			age of intrusion		K2O=0.811% AND 0.809% (ISOTOPE DILUTION)	
6544	1	133.83	6	hornblende	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	1.63	3.26				age of intrusion		K=1.353%	
6545	1	98.52	4	whole rock	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	1.946	2.837				age of intrusion		K=1.615%	
6546	1	184.68	8	whole rock	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	1.128	3.158				age of intrusion		K=0.936%	
6547	1	420.45	15	biotite	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	3.242	22.1				age of intrusion		K=2.691% (APPEARS TO BE AN IMPURE BIOTITE --COMPILER)	
6548	1	124.79	5	whole rock	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	1.337	2.487				age of intrusion		K=1.110%	
6549	1	188.53	8	whole rock	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	1.534	4.389				age of intrusion		K=1.273%	
6550	1	205.28	9	whole rock	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	1.076	3.368				age of intrusion		K=0.893%	
6551	1	162.19	6	whole rock	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	2.078	5.077				age of intrusion		K=1.725%	
6552	1	127.05	6	whole rock	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	0.982	1.861				age of intrusion		K=0.815%	
6553	1	191	10	whole rock	conventional K-Ar	13	"4.962E-04, 0.581E-04, 1.1167E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
6554	1	49		Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	"THIS AGE IS PROBABLY FROM CHADWICK, 1969 (BIOTITE AGE) --COMPILER"
6555	1	1756.06	31.5	biotite	conventional K-Ar	PR.69.157	"4.72E-04, 0.585E-04, 1.19E-04*"	6.415	274.4	9999			age of later metamorphism		K=5.33% AND 5.32%; 40AR=6.3192 AND 5.9783XE-4/G	
6557	1	1714.4	23.8	biotite	conventional K-Ar	PW.68.124	"4.72E-04, 0.585E-04, 1.19E-04*"	5.89	242.7	9999			age of later metamorphism		K=4.88% AND 4.90%; 40AR=5.4964 AND 5.3805XE-4/G	
6558	1	1668.62	14.3	biotite	conventional K-Ar	PR.69.158	"4.72E-04, 0.585E-04, 1.19E-04*"	2.596	102.6	9999			age of later metamorphism		K=2.15% AND 2.16%; 40AR=2.3281 AND 2.2688XE-4/G	
6559	1	2182.94	60.3	biotite	conventional K-Ar	PW.68.59	"4.72E-04, 0.585E-04, 1.19E-04*"	4.7	287.3	9999			minimum age of metamorphic crystallization		K=3.90% AND 3.90%; 40AR=6.7386 AND 6.1400XE-4/G	
6560	1	2170	110	whole rock	conventional K-Ar	PR.69.61	"4.72E-04, 0.585E-04, 1.19E-04*"	0.596	36.1	98			initial age disturbed by later metamorphism		K=0.50% AND 0.49%; 40AR=8.1596 AND 8.0197XE-4/G	
6561	1	4772.25	153.1	whole rock	conventional K-Ar	PJ.69.15	"4.72E-04, 0.585E-04, 1.19E-04*"	1.08	367.1	9999					K=0.89% AND 0.90%; 40AR=8.9491 AND 7.5069XE-4/G	SPURIOUS AGE; EXCESS ARGON PRESENT
6562	1	1639.53	54	biotite	conventional Rb-Sr (assumed initial 87Sr/86Sr)	PW.70.74	"4.72E-04, 0.585E-04, 1.19E-04*"	8.772	337.5	9894			age of later metamorphism		K=7.276% AND 7.288%; 40AR=1.337 AND 1.360 PPM	
6563	1	977.76	33	whole rock	conventional K-Ar	PJ.69.33.1	"4.72E-04, 0.585E-04, 1.19E-04*"	5.673	106	9796			age not evaluated		K=4.718% AND 4.701%; 40AR=0.424 AND 0.423 PPM	
6564	1	1707.4	72	amphiboles	conventional K-Ar	PR.69.84	"4.72E-04, 0.585E-04, 1.19E-04*"	0.825	33.78	9094			age of later metamorphism		K=0.688% AND 0.682%; 40AR=0.131 AND 0.139 PPM	
6565	1	2067.88	99	amphiboles	conventional K-Ar	PW.69.103	"4.72E-04, 0.585E-04, 1.19E-04*"	0.543	30.27	9482			initial age disturbed by later metamorphism		K=0.453% AND 0.450%; 40AR=0.124 AND 0.118 PPM	
6566	1	1186.06	48	whole rock	conventional K-Ar	PR.69.217	"4.72E-04, 0.585E-04, 1.19E-04*"	1.036	25.02	8480			"minimum age of metamorphic crystallization, initial age disturbed by later metamorphism"		K=0.860% AND 0.860%; 40AR=0.0974 AND 0.103 PPM	
6567	1	1862.94	61	biotite	conventional K-Ar	PW.69.107	"4.72E-04, 0.585E-04, 1.19E-04*"	9.606	451.2	9596			initial age disturbed by later metamorphism		K=7.960% AND 7.989%; 40AR=1.821 AND 1.786 PPM	
6568	1	1269.61	47	whole rock	conventional K-Ar	PR.69.115.1	"4.72E-04, 0.585E-04, 1.19E-04*"	1.88	49.87	989485					"K=1.563% AND 1.559%; 40AR=0.201, 0.189, AND 0.208 PPM"	MAXIMUM AGE FOR THE FAULTING
6569	1	1711.74	62	biotite	conventional K-Ar	PR.69.22	"4.72E-04, 0.585E-04, 1.19E-04*"	2.106	86.57	9492			"age of later metamorphism, initial age disturbed by later metamorphism"		K=1.710% AND 1.786%; 40AR=0.352 AND 0.339 PPM	
6570	1	2454.24	124	whole rock	conventional K-Ar	PW.70.70A	"4.72E-04, 0.585E-04, 1.19E-04*"	0.477	35.9	9494			age of intrusion		K=0.400 AND 0.393%; 40AR=0.143 AND 0.144 PPM	
6571	1	1448.25	75	whole rock	conventional K-Ar	PR.69.134	"4.72E-04, 0.585E-04, 1.19E-04*"	0.452	14.46	8084					K=0.378% AND 0.372%; 40AR=0.0574 AND 0.0582 PPM	INITIAL AGE HAS BEEN DISTURBED BY FAULTING
6572	1	1711.92	57	biotite	conventional Rb-Sr (assumed initial 87Sr/86Sr)	PR.69.140.1	"4.72E-04, 0.585E-04, 1.19E-04*"	7.905	325	9998			"age of later metamorphism, initial age disturbed by later metamorphism"		K=6.549% AND 6.575%; 40AR=1.299 AND 1.299 PPM	
6573	1	1562.68	67	whole rock	conventional K-Ar	PW.69.109	"4.72E-04, 0.585E-04, 1.19E-04*"	0.769	27.52	8991					K=0.640% AND 0.637%; 40AR=0.107 AND 0.113 PPM	INITIAL AGE HAS BEEN DISTURBED BY FAULTING
6574	1	730		whole rock	conventional K-Ar	BT-35	"4.72E-04, 0.585E-04, 1.19E-04"	1.16		95			age of intrusion			
6575	1	40.8	1.3	biotite	conventional K-Ar	443-14	"4.72E-04, 0.577E-04*"	8.29	4.92	40		Miller (1973)	age of intrusion	"35-150 MESH, 3% IMPURITIES"	K=6.88%	"YOUNGEST IGNEOUS ACTIVITY IN THE AREA, IF AGE IS A PRIMARY AGE"
6575	2	41.8		biotite	conventional K-Ar	443-14	"4.72E-04, 0.585E-04, 1.19E-04*"	8.29	5.049	82			age of intrusion	"35-150 MESH, 3% IMPURITIES"	K=6.88%	
6576	1	49.5		biotite	conventional K-Ar	443-3	"4.72E-04, 0.577E-04*"	8.38	6.056	73		Miller (1973)	age of intrusion	"35-150 MESH, AROUND 3% IMPURITIES"	K=6.96%	
6577	1	56.4	1.7	biotite	conventional K-Ar	443-19	"4.72E-04, 0.577E-04*"	8.02	6.615	76				"35-60 MESH, LESS THAN 3% CHLORITE"	K=6.66%	AGE TOO YOUNG; SAMPLE NOT COMPLETELY DEGASSED DURING ANALYSIS
6577	2	60.8		biotite	conventional K-Ar	443-19	"4.72E-04, 0.577E-04*"	8.58	7.633	72			minimum age of intrusion	"35-150 MESH, LESS THAN 5% CHLORITE"	K=7.12%	
6578	1	58.7	1.8	sericite	conventional K-Ar	443-12	"4.72E-04, 0.577E-04*"	5.87	5.045	62		Miller (1973)		150-200 MESH	K=4.87%	TIME OF HYDROTHERMAL ACTIVITY
6578	2	58.9	1.8	sericite	conventional K-Ar	443-12	"4.72E-04, 0.577E-04*"	5.87	5.059	52				150-200 MESH	K=4.87%	TIME OF HYDROTHERMAL ACTIVITY
6579	1	59		sericite	conventional K-Ar	443-11	"4.72E-04, 0.577E-04*"	6.47	5.585	88				LESS THAN 150 MESH	K=5.37%	TIME OF HYDROTHERMAL ACTIVITY
6580	1	74.9		biotite	conventional K-Ar	443-4	"4.72E-04, 0.577E-04*"	7.94	8.741	84			age of intrusion	28 MESH	K=6.59%	
6580	2	65.3		biotite	conventional K-Ar	443-4	"4.72E-04, 0.577E-04*"	7.53	7.213	73				"35-150 MESH, LESS THAN 3% HORNBLENDE AND CHLORITE"	K=6.25%	AGE IS TOO YOUNG
6580	3	64.1	2	biotite	conventional K-Ar	443-4	"4.72E-04, 0.577E-04*"	7.53	7.08	46				"35-150 MESH, LESS THAN 5% HORNBLENDE AND CHLORITE"	K=6.25%	AGE TOO YOUNG
6581	1	80.7		biotite	conventional K-Ar	443-10	"4.72E-04, 0.577E-04*"	6.3	7.485	89		Miller (1973)	age of intrusion	"35 MESH, LESS THAN 10% CHLORITE"	K=5.23%	
6581	2	45.2	1.4	biotite	conventional K-Ar	443-10	"4.72E-04, 0.577E-04*"	4.64	3.057	37				"35-150 MESH, 40% CHLORITE"	K=3.85%	AGE IS TOO YOUNG
6582	1	62.8		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"					Miller (1973)		FINE-GRAINED	NO ANALYTICAL DATA GIVEN	"TIME OF PRIMARY., AND STAFF, 1968, ORE DEPOSITS AT BUTTE, MONTANA, ""IN"" ORE DEPOSITS IN THE UNITED STATES, 1933-1967, AIME GRATON-SALES VOLUME, NO. 2, P. 1373-1416."
6583	1	57.5	1.8	sericite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"								NO ANALYTICAL DATA GIVEN	"TIME OF MINERALIZATION.  AGE MAY BE AN AVERAGE OF 3 K-AR AGES (RECALCULATED)(SAMPLES 443-11 AND 443-12, WOAKES, 1960, M.S. THESIS, UNIV. CALIFORNIA, BERKELEY)"
6584	1	80.69	2	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.3	7.485	89			age of intrusion	COARSE BIOTITE	"K=5.23%; AR AND K VALUES ARE FROM SAMPLE 443-10, WOAKES, 1960, M.S. THESIS, UNIV. CALIFORNIA, BERKELEY"	"SEE WOAKES, 1960.  AGE RECALCULATED"
6585	1	40.76	1.3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.29	4.92	40			age of intrusion	35-150 MESH 3% IMPURITIES	"ANALYTICAL DATA FROM WOAKES, 1960, SAMPLE 443-14; AGE RECALCULATED"	LAST INTRUSIVE PHASE?
6585	2	41.82	1.3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.29	5.049	82			age of intrusion	"35-150 MESH, 3% IMPURITIES"	"ANALYTICAL DATA FROM WOAKES, 1960, SAMPLE 443-14; AGE RECALCULATED"	LAST INTRUSIVE PHASE?
6586	1	49.51	1.5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.38	6.056	73			age of intrusion	"35-150 MESH, AROUND 3% IMPURITIES"	"ANALYTICAL DATA FROM WOAKES, 1960, SAMPLE 443-3; AGE RECALCULATED"	
6587	1		1.6	Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"								"ANALYTICAL DATA FROM WOAKES, 1960, SAMPLE 443-12; AGE RECALCULATED"	TIME OF MINERALIZATION
6587	2	58.89	1.8	sericite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	5.87	5.059	52				150-200 MESH	"ANALYTICAL DATA FROM WOAKES, 1960, SAMPLE 443-12; AGE RECALCULATED"	TIME OF MINERALIZATION
6588	1	58	1.6	sericite	conventional K-Ar	(NOT GIVEN)	no decay constants given								"NO ANALYTICAL DATA GIVEN; THIS SAMPLE MAY BE SAMPLE 443-11, WOAKES, 1960, BUT RECALCULATED AGE IS NOT 58 M.Y."	TIME OF MINERALIZATION
6589	1	62.8	2	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"								NO ANALYTICAL DATA GIVEN	"TIME OF FIRST PHASE OF HYDROTHERMAL ACTIVITY; THIS AGE ALSO REPORTED BY MEYER AND OTHERS, 1968"
6590	1	74.89	2	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.94	8.741	84			age of intrusion	28 MESH	"ANALYTICAL DATA FROM WOAKES, 1960, SAMPLE 443-4; AGE RECALCULATED"	
6591	1	80.69	2.3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	6.3	7.485	89			age of intrusion		"ANALYTICAL DATA FROM WOAKES, 1960, SAMPLE 443-10; AGE RECALCULATED"	
6592	1	1090		glauconite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	8.36					age of sedimentation	PARTIALLY DISORDERED 1M-MICA POLYMORPH BY X-RAY		
6593	1	42.7	2.4	whole rock	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
6594	1	103.5	6.8	Unk	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	AGE MAY BE TOO OLD; THE PRESENCE OF EXCESS ARGON SEEMS PROBABLE
6595	1	84.05	4	biotite	conventional K-Ar	AK48	"4.76E-04, 0.589E-04, 1.18E-04*"	5.85	7.246				age of intrusion		K=4.86%	
6596	1	80	4	biotite	conventional K-Ar	AK63	"4.76E-04, 0.589E-04, 1.18E-04*"	6.54	7.702				age of intrusion		K=5.43%	
6597	1	49.81	3	biotite	conventional K-Ar	KA156	"4.76E-04, 0.589E-04, 1.18E-04*"	8.69	6.318				age of intrusion		K=7.21%	
6598	1	60.7		biotite	conventional K-Ar	4983	"4.76E-04, 0.589E-04, 1.18E-04"						age of sedimentation		NO ANALYTICAL DATA GIVEN	
6598	2	64.4		sanidine	conventional K-Ar	4983	"4.76E-04, 0.589E-04, 1.18E-04"						age of sedimentation		NO ANALYTICAL DATA GIVEN	
6598	3	61.1		sanidine	conventional K-Ar	4983	"4.76E-04, 0.589E-04, 1.18E-04"						age of sedimentation		NO ANALYTICAL DATA GIVEN	
6599	1	46.03	1.5	biotite	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	9.05	6.075	81			age of intrusion			
6599	2	46.16	1.5	orthoclase	conventional K-Ar	1	"4.72E-04, 0.585E-04, 1.19E-04*"	8.81	5.931	86			age of intrusion	"MONOCLINIC BY X-RAY, LARGE OPTIC ANGLE"		
6600	1	48.95	1.8	whole rock	conventional K-Ar	3	"4.72E-04, 0.585E-04, 1.19E-04*"	6.64	4.743	94			age of intrusion			
6601	1	49.69	1.8	biotite	conventional K-Ar	4	"4.72E-04, 0.585E-04, 1.19E-04*"	9.5	6.891	89			age of intrusion			
6602	1	50.67	1.9	whole rock	conventional K-Ar	5	"4.72E-04, 0.585E-04, 1.19E-04*"	4.9	3.625	91			age of intrusion			
6603	1	50.85	2	whole rock	conventional K-Ar	6	"4.72E-04, 0.585E-04, 1.19E-04*"	3.2	2.376	79			age of intrusion			
6604	1	51.8	1.5	biotite	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	9.16	6.93	87			age of intrusion			
6604	2	68.88	2	orthoclase	conventional K-Ar	7	"4.72E-04, 0.585E-04, 1.19E-04*"	9.02	9.118	97			"sample contains excess radiogenic argon, age is too old"	"MONOCLINIC BY X-RAY, LARGE OPTIC ANGLE"		
6605	1	52.16	2	biotite	conventional K-Ar	8	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	6.735	92			age of intrusion			
6606	1	51.62	1.9	biotite	conventional K-Ar	9	"4.72E-04, 0.585E-04, 1.19E-04*"	8.54	6.438	85			age of intrusion			
6607	1	47.43	1.6	biotite	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	8.75	6.054	86			age of intrusion			
6607	2	46	1.5	sanidine	conventional K-Ar	10	"4.72E-04, 0.585E-04, 1.19E-04*"	6.59	4.42	87			age of intrusion	"MONOCLINIC BY X-RAY, LOW OPTIC ANGLE"		
6608	1	48.4	1.8	biotite	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	7.58	5.353	91			age of intrusion			
6608	2	47.38	1.7	hornblende	conventional K-Ar	11	"4.72E-04, 0.585E-04, 1.19E-04*"	0.904	0.6248	86			age of intrusion		POTASSIUM DETERMINED BY ISOTOPE DILUTION	
6609	1	49.47	1.6	biotite	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	8.18	5.907	80			age of intrusion			
6609	2	49.94	1.7	sanidine	conventional K-Ar	12	"4.72E-04, 0.585E-04, 1.19E-04*"	9.94	7.247	89			age of intrusion	"MONOCLINIC BY X-RAY, LOW OPTIC ANGLE"		
6610	1	50.93	2.3	biotite	conventional K-Ar	13	"4.72E-04, 0.585E-04, 1.19E-04*"	7.9	5.875	80			age of intrusion			
6611	1	49.97	2	whole rock	conventional K-Ar	14	"4.72E-04, 0.585E-04, 1.19E-04*"	4.1	2.991	84			age of intrusion			
6614	1	57	1.5	biotite	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	8.06	6.719	82			age of intrusion			
6614	2	49.7	1.5	biotite	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	8.1	5.876	83			age of intrusion			
6614	3	64.5	1.8	orthoclase	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	8.74	8.257	93			"sample contains excess radiogenic argon, age is too old"	"MONOCLINIC BY X-RAY, LARGE OPTIC ANGLE"		
6614	4	67.5	2	K feldspar	conventional K-Ar	16	"4.72E-04, 0.585E-04, 1.19E-04*"	8.42	8.336	92			"sample contains excess radiogenic argon, age is too old"			
6615	1	52.12	1.7	biotite	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	7.16	5.451	82			age of intrusion			
6615	2	50.76	1.7	orthoclase	conventional K-Ar	17	"4.72E-04, 0.585E-04, 1.19E-04*"	6.16	4.566	87			age of intrusion	"MONOCLINIC BY X-RAY, LARGE OPTIC ANGLE"		
6616	1	55.29	2.1	biotite	conventional K-Ar	18	"4.72E-04, 0.585E-04, 1.19E-04*"	8.21	6.636	91			maximum age of intrusion			
6617	1	53.95	2	biotite	conventional K-Ar	19	"4.72E-04, 0.585E-04, 1.19E-04*"	8.58	6.765	93			age of intrusion			
6618	1	52.29	1.9	biotite	conventional K-Ar	20	"4.72E-04, 0.585E-04, 1.19E-04*"	4.84	3.697	88			age of intrusion			
6619	1	54.22	2	biotite	conventional K-Ar	21	"4.72E-04, 0.585E-04, 1.19E-04*"	7.2	5.706	94			age of intrusion			
6620	1	59.21	2.2	hornblende	conventional K-Ar	22	"4.72E-04, 0.585E-04, 1.19E-04*"	0.674	0.5841	72			maximum age of intrusion		POTASSIUM DETERMINED BY ISOTOPE DILUTION	"EXCESS ARGON MAY BE PRESENT, MAKING THE AGE TOO OLD"
6621	1	54.07	2	biotite	conventional K-Ar	23	"4.72E-04, 0.585E-04, 1.19E-04*"	8.07	6.377	88			age of intrusion			
6622	1	51.8	1.9	biotite	conventional K-Ar	24	"4.72E-04, 0.585E-04, 1.19E-04*"	6.42	4.857	90			age of intrusion			
6623	1	53.79	2	biotite	conventional K-Ar	25	"4.72E-04, 0.585E-04, 1.19E-04*"	7.74	6.084	93			age of intrusion			
6624	1	54.19	2	whole rock	conventional K-Ar	26	"4.72E-04, 0.585E-04, 1.19E-04*"	4.36	3.453	92			age of intrusion			
6625	1	45.02	1.7	biotite	conventional K-Ar	27	"4.72E-04, 0.585E-04, 1.19E-04*"	8.84	5.802	87			age of intrusion			
6626	1	52.02	1.7	biotite	conventional K-Ar	28	"4.72E-04, 0.585E-04, 1.19E-04*"	8.1	6.155	92			age of intrusion			
6627	1	49.8	1.8	muscovite	conventional K-Ar	29	"4.72E-04, 0.585E-04, 1.19E-04*"	8.26	6.005	89			age of intrusion			
6628	1	43.53	1.3	biotite	conventional K-Ar	30	"4.72E-04, 0.585E-04, 1.19E-04*"	8.56	5.43	93			age of intrusion			
6628	2	42.4	1.2	sanidine	conventional K-Ar	30	"4.72E-04, 0.585E-04, 1.19E-04*"	11.02	6.807	94			age of intrusion	"MONOCLINIC BY X-RAY, SMALL OPTIC ANGLE"		
6629	1	45.24	1.6	whole rock	conventional K-Ar	31	"4.72E-04, 0.585E-04, 1.19E-04*"	4.79	3.159	96			age of intrusion			
6630	1	45.94	2	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.63	1.762	93			age of volcanism		K=2.18%	
6631	1	45.63	2	sanidine	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.84	5.216	96			age of volcanism		K=6.51%	
6632	1	47.76	2.5	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.51	1.749	76			maximum age of intrusion		K=2.08%	
6633	1	75.08	2.1	biotite	conventional K-Ar	DKA1888	"4.72E-04, 0.584E-04, 1.19E-04*"	8.87	9.79	90			age of intrusion		K=7.36%	
6633	2	73.64	2.5	hornblende	conventional K-Ar	DKA1893	"4.72E-04, 0.584E-04, 1.19E-04*"	0.511	0.553	63			age of intrusion		K=0.424%	
6634	1	75.8	2.1	biotite	conventional K-Ar	DKA1891	"4.72E-04, 0.584E-04, 1.19E-04*"	8.91	9.93	93			age of intrusion		K=7.40%	
6634	2	78.44	2.5	hornblende	conventional K-Ar	DKA1890	"4.72E-04, 0.584E-04, 1.19E-04*"	0.94	1.085	93			age of intrusion		K=0.780%	
6653	1	53.29		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.35	7.28	5735			age of intrusion	BIOTITE FLAKES 10 CM ACROSS	"K=7.76%, 40AR(RAD)=0.0291 AND 0.0290 PPM"	
6655	1	48		Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	
6656	1			Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	
6657	1	44		Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given								NO ANALYTICAL DATA GIVEN	PROBABLE AGE OF MINERALIZATION
6658	1	361	6	hornblende	conventional K-Ar	71-GWL-119-1	"4.962E-04, 0.581E-04, 1.1167E-04"	0.926	5.33	93			maximum age of metamorphic crystallization			
6659	1	325	6	hornblende	conventional K-Ar	A13-1	"4.962E-04, 0.581E-04, 1.1167E-04"	0.704	3.61	70			initial age disturbed by later metamorphism			
6700	1	70.7	6.5	K feldspar	conventional K-Ar	KA-34	"5.023E-04, 0.552E-04*"	9.89		79			age of intrusion	20-100 MESH	K=8.21%; 40AR(RAD)/40K=0.00399	AN AGE OF 71 M.Y. WAS REPORTED BY BEVERIDGE AND FOLINSBEE (1956) FOR THE SAME SAMPLE
6701	1	77.8	1.6	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		40AR(RAD)/40K=0.00464	
6702	1	76.4	2.3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		40AR(RAD)/40K=0.00455	
6703	1	73.2	2.2	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						minimum age of intrusion		NO ANALYTICAL DATA GIVEN	
6703	2	76		hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion	UPGRADED HORNBLENDE SEPARATE	NO ANALYTICAL DATA GIVEN	"ANALYZED BY EVERNDEN, UNIV. OF CALIFORNIA, BERKELEY"
6703	3	113		hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"							UPGRADED HORNBLENDE SEPARATE	NO ANALYTICAL DATA GIVEN	AGE TOO OLD; ANALYZED BY GEOCHRON
6703	4	81		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						maximum age of intrusion		NO ANALYTICAL DATA GIVEN	"ANALYZED BY EVERNDEN, UNIV. OF CALIFORNIA, BERKELEY"
6703	5	82		biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						maximum age of intrusion		NO ANALYTICAL DATA GIVEN	"ANALYZED BY FOLINSBEE, UNIV. OF ALBERTA"
6704	1	73.5	1.4	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
6705	1	70.2	1.5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
6706	1	79.43	2.4	hornblende	conventional K-Ar	D1564	"4.72E-04, 0.584E-04, 1.19E-04*"	0.988	1.155	90			age of volcanism			
6707	1	80.62	2.4	hornblende	conventional K-Ar	D1567A	"4.72E-04, 0.584E-04, 1.19E-04*"	0.829	0.984	94			age of volcanism			
6707	2	79.43	2.4	hornblende	conventional K-Ar	D1567B	"4.72E-04, 0.584E-04, 1.19E-04*"	0.834	0.975	95			age of volcanism			
6708	1	106	6	biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	
6709	1	80.04	3.1	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04*"	8.75	10.31	89			age of intrusion	"SAMPLE 63K-350 (SEE TILLING, KLEPPER, OBRADOVICH, 1968)"	"SEE TILLING, KLEPPER, OBRADOVICH, 1968, FOR ANALYTICAL DATA"	"AGE ALSO REPORTED BY TILLING, KLEPPER, OBRADOVICH, 1968"
6710	1	76.17	4	biotite	conventional K-Ar	312B	"4.72E-04, 0.585E-04, 1.19E-04*"	8.22	9.207	83			minimum age of volcanism			
6710	2	76.01	4	plagioclase	conventional K-Ar	312P	"4.72E-04, 0.585E-04, 1.19E-04*"	1.155	1.291	92			age of volcanism		K2O=1.11% AND 1.20%	
6710	3	23.44	7	glass	conventional K-Ar	312G	"4.72E-04, 0.585E-04, 1.19E-04*"	3.345	1.136	63					K2O=3.32% AND 3.37%	AGE TOO YOUNG DUE TO DIFFUSION OF ARGON FROM THE GLASS
6710	4	22.04	7	glass	conventional K-Ar	312G	"4.72E-04, 0.585E-04, 1.19E-04*"	3.345	1.068	30					K2O=3.32% AND 3.37%	AGE TOO YOUNG DUE TO DIFFUSION OF ARGON FROM THE GLASS
6710	5	19.77	2	glass	conventional K-Ar	312G	"4.72E-04, 0.585E-04, 1.19E-04*"	3.26	0.9332	19						AGE TOO YOUNG DUE TO DIFFUSION OF ARGON FROM THE GLASS
6711	1	75.23	2	biotite	conventional K-Ar	649B	"4.72E-04, 0.585E-04, 1.19E-04*"	3.8	4.203	86			minimum age of volcanism		K2O=3.85% AND 3.75%	
6711	2	73.98	7	plagioclase	conventional K-Ar	649P	"4.72E-04, 0.585E-04, 1.19E-04*"	0.81	0.8807	64			minimum age of volcanism		K2O=0.81% AND 0.81%	
6711	3	32.86	2	glass	conventional K-Ar	649G	"4.72E-04, 0.585E-04, 1.19E-04*"	1.31	0.6255	51					K2O=1.31% AND 1.31%	AGE TOO YOUNG DUE TO DIFFUSION OF ARGON FROM THE GLASS
6712	1	84.6	2	biotite	conventional K-Ar	D1303B	"4.72E-04, 0.585E-04, 1.19E-04*"	6.42	8.006	90			age of volcanism		K2O=6.47% AND 6.37%	"AGE ALSO MENTIONED BY SKIPP AND MCGREW, 1977"
6712	2	72.28	7	plagioclase	conventional K-Ar	D1304P	"4.72E-04, 0.585E-04, 1.19E-04*"	0.615	0.653	91			minimum age of volcanism		K2O=0.62% AND 0.61%	"AGE ALSO MENTIONED BY SKIPP AND MCGREW, 1977"
6713	1	51.89		whole rock	conventional K-Ar	LT73	no decay constants given*	5.61	4.252	80				CLAY-SIZED FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS MINOR KAOLIN AND MINOR CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6714	1	55.27		whole rock	conventional K-Ar	MB11	no decay constants given*	2.86	2.311	59				CLAY-SIZED FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS KAOLIN		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6715	1	52.07		whole rock	conventional K-Ar	LT51	no decay constants given*	5.3	4.031	79				0.2 TO 0.5 MICROMETER-SIZED MIXED LAYERED ILLITE/SMECTITE PLUS KAOLIN AND TRACE CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6715	2	53.34		whole rock	conventional K-Ar	LT51	no decay constants given*	5.26	4.1					0.06 TO 0.2 MICROMETER-SIZED MIXED LAYERED ILLITE/SMECTITE PLUS KAOLIN AND TRACE CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6715	3	55.63		whole rock	conventional K-Ar	LT51	no decay constants given*	5.08	4.132					LESS THAN 0.06 MICROMETER-SIZED MIXED LAYERED ILLITE/SMECTITE PLUS KAOLIN AND TRACE CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6716	1	54.05		whole rock	conventional K-Ar	LT96A	no decay constants given*	4.9	3.871	82				0.2 TO 0.5 MICROMETER-SIZE MIXED LAYERED ILLITE/SMECTITE PLUS TRACE CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6716	2	54.16		whole rock	conventional K-Ar	LT96A	no decay constants given*	4.83	3.823					LESS THAN 0.2 MICROMETER-SIZE MIXED LAYERED ILLITE/SMECTITE PLUS TRACE CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6717	1	51.35		whole rock	conventional K-Ar	LT14	no decay constants given*	5.31	3.982	70				CLAY-SIZED FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS TRACE CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6718	1	56.91		whole rock	conventional K-Ar	LT93A	no decay constants given*	5.35	4.453	85				CLAY-SIZED FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS KAOLIN AND CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6719	1	53.58		whole rock	conventional K-Ar	LT4	no decay constants given*	4.85	3.797	56				CLAY-SIZE FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS KAOLIN AND CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6720	1	59.16		whole rock	conventional K-Ar	LT162	no decay constants given*	5.09	4.407	87				CLAY-SIZE FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6721	1	50.94		whole rock	conventional K-Ar	LT128	no decay constants given*	4.56	3.392	66				CLAY-SIZE FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS CHLORITE AND TRACE KAOLIN		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6722	1	58.74		whole rock	conventional K-Ar	LT85	no decay constants given*	5.48	4.711	80				CLAY-SIZE FRACTION OF MIXED LAYERED ILLITE/SMECTITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6723	1	60.15		whole rock	conventional K-Ar	LTE27	no decay constants given*	4.39	3.866	73				CLAY-SIZE FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS KAOLIN		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6724	1	57.69		whole rock	conventional K-Ar	LT178	no decay constants given*	4.96	4.186	70				CLAY-SIZE FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS MINOR KAOLIN		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6725	1	56.4		whole rock	conventional K-Ar	LT24	no decay constants given*	5.95	4.908	84				CLAY-SIZE FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS CHLORITE AND TRACE KAOLIN		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6726	1	56.02		whole rock	conventional K-Ar	LTE21	no decay constants given*	6.01	4.923	88				CLAY-SIZE FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS TRACE OF CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6727	1	67.58		whole rock	conventional K-Ar	LTE23	no decay constants given*	4.98	4.937	90				0.2 TO 0.5 MICROMETER-SIZE MIXED LAYERED ILLITE/SMECTITE PLUS CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6727	2	65.95		whole rock	conventional K-Ar	LTE23	no decay constants given*	5.14	4.971					0.06 TO 0.2 MICROMETER-SIZE MIXED LAYERED ILLITE/SMECTITE PLUS CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6728	1	61.81		whole rock	conventional K-Ar	LT109	no decay constants given*	5.5	4.979	88				CLAY-SIZE FRACTION OF MIXED LAYERED ILLITE/SMECTITE PLUS TRACE OF CHLORITE		AGE IS RELATED TO TIME OF THRUST-FAULTING AND CHEMICAL-MINERALOGICAL CHANGES IN THE BENTONITE
6729	1	80.8	1	hornblende	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	1.183	1.407	80			age of volcanism		POTASSIUM DETERMINED BY ISOTOPE DILUTION METHOD; ANALYTICAL DATA RELEASED BY BETTY SKIPP	
6730	1	76.6	1	hornblende	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	0.797	0.898	76			age of volcanism		POTASSIUM DETERMINED BY ISOTOPE DILUTION METHOD; ANALYTICAL DATA RELEASED BY BETTY SKIPP	
6731	1	739.23	30	hornblende	conventional K-Ar	L-519	"4.72E-04, 0.585E-04, 1.19E-04*"	1.265	16.64	86			age of intrusion		K2O=1.26% AND 1.27%	
6732	1	206.84	7	plagioclase	conventional K-Ar	L-520	"4.72E-04, 0.585E-04, 1.19E-04*"	3.315	10.46	94				SERICITIZED PLAGIOCLASE	K2O=3.33% AND 3.30%	A MINIMUM AGE FOR THE SILL; SILL MAY BE ABOUT 1075 M.Y. OLD
6733	1	299.11	10	plagioclase	conventional K-Ar	L-521	"4.72E-04, 0.585E-04, 1.19E-04*"	4.255	19.93	94				SERICITIZED PLAGIOCLASE	K2O=4.25% AND 4.26%	A MINIMUM AGE FOR THE SILL; SILL MAY BE ABOUT 1075 M.Y. OLD
6734	1	288.37	10	plagioclase	conventional K-Ar	L-522	"4.72E-04, 0.585E-04, 1.19E-04*"	3.905	17.58	95				SERICITIZED PLAGIOCLASE	K2O=3.89% AND 3.92%	A MINIMUM AGE FOR THE SILL; SILL MAY BE ABOUT 1075 M.Y. OLD
6735	1	5.44		whole rock	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of volcanism		NO ANALYTICAL DATA GIVEN	
6736	1	7	0.8	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	0.757	0.0768				age of volcanism		"ANALYTICAL DATA FROM R.B. BERG, MONTANA BUREAU OF MINES AND GEOLOGY --COMPILER"	
6737	1	49	1.7	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
6738	1	49.5	1.5	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
6739	1	53.5	2.3	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	
6743	1	55.3	0.7	biotite	conventional K-Ar	K-143A	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion			"AGE ALSO REPORTED IN USGS PROFESSIONAL PAPER 900 (1974), P. 32, AND BY ELLIOTT (1974)"
6744	1	73.6	0.9	adularia	conventional K-Ar	E459	"4.72E-04, 0.585E-04, 1.19E-04"									"TIME OF HYDROTHERMAL ACTIVITY; AGE ALSO REPORTED IN USGS PROFESSIONAL PAPER 900 (1974), P. 32"
6789	1	69		sanidine	conventional K-Ar	AK 338	"4.76E-04, 0.589E-04, 1.18E-04"	9.43		72			minimum age of volcanism		40AR/40K=0.00413	
6789	2	72		biotite	conventional K-Ar	AK 337	"4.76E-04, 0.589E-04, 1.18E-04"	8.3		72			age of volcanism		40AR/40K=0.00430	
6790	1	68		biotite	conventional K-Ar	AK 308	"4.76E-04, 0.589E-04, 1.18E-04"	7.95		77			age of volcanism		40AR/40K=0.00411	
6791	1	61		biotite	conventional K-Ar	317	"4.76E-04, 0.589E-04, 1.18E-04"	5.18		39			minimum age of volcanism		40AR/40K=0.00363	
6791	2	65		biotite	conventional K-Ar	317	"4.76E-04, 0.589E-04, 1.18E-04"	5.14		63			age of volcanism		40AR/40K=0.00391	
6791	3	64		sanidine	conventional K-Ar	318	"4.76E-04, 0.589E-04, 1.18E-04"	10.42		78			age of volcanism		40AR/40K=0.00386	
6791	4	64		sanidine	conventional K-Ar	318	"4.76E-04, 0.589E-04, 1.18E-04"	10.61		94			age of volcanism		40AR/40K=0.00386	
6792	1	2.05	0.07	sanidine	conventional K-Ar	598. (URRL-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	9.02	2.663	73			age of volcanism		"K=7.49%  ANALYST: S.H. EVANS, DEPT. OF GEOLOGY, UNIV. OF UTAH"	
6793	1	1.95	0.35	whole rock	conventional K-Ar	600. (URRL-2)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.43	0.122	7			age of volcanism		"K=0.36%  ANALYST: S.H. EVANS, DEPT. OF GEOLOGY, UNIV. OF UTAH"	YOUNGEST BASALT REPORTED IN THIS AREA
6794	1	2.09	0.07	sanidine	conventional K-Ar	597. (URRL-3)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.97	2.711	65			age of volcanism		"K=7.45%  ANALYST: S.H. EVANS, DEPT. OF GEOLOGY, UNIV. OF UTAH"	
6795	1	30.8	1.2	whole rock	conventional K-Ar	583. (LRRL-1)	"4.962E-04, 0.581E-04, 1.1167E-04"	1.84	8.222	46			age of volcanism		"K=1.53%  ANALYST: S.H. EVANS, DEPT. OF GEOLOGY, UNIV. OF UTAH"	VERTEBRATE REMAINS SUGGEST LOWER MIOCENE AGE
6796	1	38.6	1.5	whole rock	conventional K-Ar	573. (JOS)	"4.72E-04, 0.585E-04, 1.19E-04*"	4.144	2.328	74			age of volcanism	-60+200 MESH RANGE	"K=3.440%, RAD. 40AR=0.009303 PPM"	
6797	1	49.62	1.8	biotite	conventional K-Ar	534. (SB-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.482	5.419	69				-60+200 MESH RANGE	"K=6.211%, RAD. 40AR=0.02166 PPM"	THIS AGE IS APPARENTLY TOO YOUNG
6798	1	64.64	2.4	biotite	conventional K-Ar	430. (K-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	7.658	7.256	61			minimum age of intrusion	-60+200 MESH	"K=6.357%, RAD. 40AR=0.02900 PPM"	
6798	2	71.77	3.2	hornblende	conventional K-Ar	430. (K-2)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.461	1.54	52			age of intrusion	-80+200 MESH	"K=1.213%, RAD. 40AR=0.006154 PPM"	
6799	1	91.3	2.7	biotite	conventional K-Ar	401. (EL-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	8.14	10.97	74			age of intrusion		K=6.76%	
6800	1	81.7	2.8	biotite	conventional K-Ar	386. (RR-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	9.312	11.21	72			age of intrusion		K=7.730%	
6801	1	85.18	3.4	whole rock	conventional K-Ar	351. (K-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.624	3.295	66			age not evaluated	-60+200 MESH	"K=2.178%, RAD. 40AR=0.01317 PPM"	
6802	1	88.52	4	hornblende	conventional K-Ar	345. (SG-1)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.13	1.476	49			age not evaluated	-60+200 MESH	"K=0.938%, RAD. 40AR=0.005898 PPM"	
6823	1	286.83	10	muscovite	conventional K-Ar	1M	"4.72E-04, 0.584E-04, 1.19E-04*"	6.01	26.9	72				-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6823	2	315.44	3	biotite	conventional K-Ar	1B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.54	42.38	96			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6824	1	280.89	3	muscovite	conventional K-Ar	2M	"4.72E-04, 0.584E-04, 1.19E-04*"	8.33	36.45	98				-40 +80 MESH GRAIN SIZE		A COOLING AGE
6824	2	324.36	6	biotite	conventional K-Ar	2B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.94	40.62	98			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6825	1	286.86	5	muscovite	conventional K-Ar	3M	"4.72E-04, 0.584E-04, 1.19E-04*"	6.36	28.47	93			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6826	1	325.73	2	muscovite	conventional K-Ar	4M	"4.72E-04, 0.584E-04, 1.19E-04*"	6.95	35.72	76			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6827	1	387.82	5	biotite	conventional K-Ar	5B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.25	45.16	98			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6828	1	368.21	4	muscovite	conventional K-Ar	6M	"4.72E-04, 0.584E-04, 1.19E-04*"	7.64	44.93	97			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6828	2	369.56	4	biotite	conventional K-Ar	6B	"4.72E-04, 0.584E-04, 1.19E-04*"	5.88	34.72	97			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6829	1	353.33	6	muscovite	conventional K-Ar	7M	"4.72E-04, 0.584E-04, 1.19E-04*"	7.01	39.39	50				-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6829	2	419.88	7	biotite	conventional K-Ar	7B	"4.72E-04, 0.584E-04, 1.19E-04*"	5.89	40.09	96			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6830	1	401.72	4	biotite	conventional K-Ar	11B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.97	51.63	98			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6831	1	343.7	7	muscovite	conventional K-Ar	12M	"4.72E-04, 0.584E-04, 1.19E-04*"	6.63	36.14	95			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6831	2	354.63	2	biotite	conventional K-Ar	12B	"4.72E-04, 0.584E-04, 1.19E-04*"	4.86	27.42	97			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6832	1	359.84	4	muscovite	conventional K-Ar	13M	"4.72E-04, 0.584E-04, 1.19E-04*"	7.69	44.09	95				-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6832	2	384.54	5	biotite	conventional K-Ar	13B	"4.72E-04, 0.584E-04, 1.19E-04*"	8.33	51.4	97			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6833	1	353.38	5	muscovite	conventional K-Ar	14M	"4.72E-04, 0.584E-04, 1.19E-04*"	9.29	52.21	98			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6834	1	398.12	5	biotite	conventional K-Ar	15B	"4.72E-04, 0.584E-04, 1.19E-04*"	5.37	34.44	97			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6835	1	372.26	5	biotite	conventional K-Ar	16B	"4.72E-04, 0.584E-04, 1.19E-04*"	4	23.81	41			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE; NOT A PURE BIOTITE SEPARATE		PROBABLY A COOLING AGE
6836	1	346.89	4	muscovite	conventional K-Ar	17M	"4.72E-04, 0.584E-04, 1.19E-04*"	8.37	46.09	98				-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6836	2	388.01	4	biotite	conventional K-Ar	17B	"4.72E-04, 0.584E-04, 1.19E-04*"	6.41	39.95	94			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6837	1	406.75	6	whole rock	conventional K-Ar	18WR	"4.72E-04, 0.584E-04, 1.19E-04*"	4.01	26.34	97			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6838	1	353.68	3	muscovite	conventional K-Ar	19M	"4.72E-04, 0.584E-04, 1.19E-04*"	3.31	18.62	90				-40 +80 MESH GRAIN SIZE (IMPURE MUSCOVITE SEPARATE)		PROBABLY A COOLING AGE
6838	2	370.94	5	biotite	conventional K-Ar	19B	"4.72E-04, 0.584E-04, 1.19E-04*"	5.64	33.44	97			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6839	1	399.93	13	biotite	conventional K-Ar	20B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.11	45.83	98			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6840	1	328.39	3	muscovite	conventional K-Ar	29M	"4.72E-04, 0.584E-04, 1.19E-04*"	7.01	36.35	93				-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6840	2	351.64	4	biotite	conventional K-Ar	29B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.75	43.32	96			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6841	1	340.78	5	biotite	conventional K-Ar	30B	"4.72E-04, 0.584E-04, 1.19E-04*"	7.97	43.04	97			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		PROBABLY A COOLING AGE
6842	1	268.58	2	sericite	conventional K-Ar	31M	"4.72E-04, 0.584E-04, 1.19E-04*"	3.6	15.01	94			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE (IMPURE MUSCOVITE SEPARATE?)		PROBABLY A COOLING AGE
6843	1	431.4	3	hornblende	conventional K-Ar	43H	"4.72E-04, 0.584E-04, 1.19E-04*"	1.16	8.139	94				-40 +80 MESH GRAIN SIZE		APPROXIMATE (MINIMUM) AGE OF METAMORPHISM
6844	1	375.48	4	hornblende	conventional K-Ar	44H	"4.72E-04, 0.584E-04, 1.19E-04*"	0.63	3.786	94			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		
6845	1	517.83	8	hornblende	conventional K-Ar	45H	"4.72E-04, 0.584E-04, 1.19E-04*"	0.17	1.468	84				-40 +80 MESH GRAIN SIZE		"AGE IS ANOMOLOUSLY OLD, POSSIBLY DUE TO AN ERROR IN DETERMINING THE LOW POTASSIUM CONCENTRATION OF THE SAMPLE"
6845	2	481	18	hornblende	40Ar/36Ar-40K/36Ar isochron	45H	"4.72E-04, 0.584E-04, 1.19E-04"				286		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6845	3	480	15	hornblende	40Ar-40K isochron	45H	"4.72E-04, 0.584E-04, 1.19E-04"				287		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6846	1	400.73	4	hornblende	conventional K-Ar	46H	"4.72E-04, 0.584E-04, 1.19E-04*"	0.88	5.685	94			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		
6847	1	489.26	5	hornblende	conventional K-Ar	47H	"4.72E-04, 0.584E-04, 1.19E-04*"	0.82	6.635	95			age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		
6847	2	481	18	hornblende	40Ar/36Ar-40K/36Ar isochron	47H	"4.72E-04, 0.584E-04, 1.19E-04"				286		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6847	3	480	15	hornblende	40Ar-40K isochron	47H	"4.72E-04, 0.584E-04, 1.19E-04"				287		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6848	1	465.86	10	hornblende	conventional K-Ar	48H	"4.72E-04, 0.584E-04, 1.19E-04*"	0.57	4.362	90			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		
6848	2	481	18	hornblende	40Ar/36Ar-40K/36Ar isochron	48H	"4.72E-04, 0.584E-04, 1.19E-04"				286		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6848	3	480	15	hornblende	40Ar-40K isochron	48H	"4.72E-04, 0.584E-04, 1.19E-04"				287		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6849	1	474.86	13	hornblende	conventional K-Ar	49H	"4.72E-04, 0.584E-04, 1.19E-04*"	0.29	2.268	84			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		
6849	2	481	18	hornblende	40Ar/36Ar-40K/36Ar isochron	49H	"4.72E-04, 0.584E-04, 1.19E-04"				286		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6849	3	480	15	hornblende	40Ar-40K isochron	49H	"4.72E-04, 0.584E-04, 1.19E-04"				287		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6850	1	455.45	8	hornblende	conventional K-Ar	50H	"4.72E-04, 0.584E-04, 1.19E-04*"	0.22	1.641	41			minimum age of metamorphic crystallization	-40 +80 MESH GRAIN SIZE		
6850	2	481	18	hornblende	40Ar/36Ar-40K/36Ar isochron	50H	"4.72E-04, 0.584E-04, 1.19E-04"				286		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6850	3	480	15	hornblende	40Ar-40K isochron	50H	"4.72E-04, 0.584E-04, 1.19E-04"				287		age of metamorphic crystallization		5-POINT HORNBLENDE ISOCHRON; SEE THESIS FOR ANALYTICAL DATA	
6851	1	203.63	10	whole rock	conventional K-Ar	KA74-170	"4.72E-04, 0.585E-04, 1.19E-04*"	0.29	0.9	8465			age of intrusion		"%K2O=0.29, 0.29, 0.29; 40AR-RAD=0.94XE-10, 0.85XE-10 MOLES/GM"	INITIAL 87SR/86SR IS PROBABLY 0.705
6852	1	192.74	10	whole rock	conventional K-Ar	KA74-171	"4.72E-04, 0.585E-04, 1.19E-04*"	0.28	0.82	4940			age of intrusion		"%K2O=0.28, 0.28; 40AR-RAD=0.80XE-10, 0.85XE-10 MOLES/GM"	INITIAL 87SR/86SR IS PROBABLY 0.705
6853	1	223.9	20	whole rock	conventional K-Ar	KA74-185	"4.72E-04, 0.585E-04, 1.19E-04*"	0.081	0.278	2814			age of intrusion		"%K2O=0.0817, 0.0804; 40AR-RAD=0.293XE-10, 0.262XE-10 MOLES/GM"	INITIAL 87SR/86SR IS PROBABLY 0.705
6854	1	224.14	12	whole rock	conventional K-Ar	KA74-186	"4.72E-04, 0.585E-04, 1.19E-04*"	0.25	0.859	5453			age of intrusion		"%K2O=0.24, 0.25; 40AR-RAD=0.897XE-10, 0.821XE-10 MOLES/GM"	INITIAL 87SR/86SR IS PROBABLY 0.705
6855	1	187.28	9	whole rock	conventional K-Ar	KA74-187	"4.72E-04, 0.585E-04, 1.19E-04*"	0.34	0.966	1646			age of intrusion		"%K2O=0.34, 0.33; 40AR-RAD=0.973XE-10, 0.959XE-10 MOLES/GM"	INITIAL 87SR/86SR IS PROBABLY 0.705
6856	1	228.02	9	whole rock	conventional K-Ar	KA74-194	"4.72E-04, 0.585E-04, 1.19E-04*"	0.0633	0.2215	3136			age of intrusion		"%K2O=0.0647, 0.0619; 40AR-RAD=0.2240XE-10, 0.2191XE-10 MOLES/GM"	INITIAL 87SR/86SR IS PROBABLY 0.705
6857	1	268.94	8	whole rock	conventional K-Ar	KA74-192	"4.72E-04, 0.585E-04, 1.19E-04*"	0.0787	0.3286	3637					"K=0.0654%, 0.0652%; 40AR(RAD)=0.0737 AND 0.0736XE-5 CC/GM"	AGE IS ANOMOLOUSLY OLD FOR DIKE CUTTING TRIASSIC ROCKS; THIS MAY BE DUE TO THE PRESENCE OF EXCESS 40AR OR ANALYTICAL PROBLEMS IN MEASURING LOW K AND AR CONCENTRATIONS (COMPILER)
6858	1	230.3	12	whole rock	conventional K-Ar	KA74-193	"4.72E-04, 0.585E-04, 1.19E-04*"	0.0574	0.203	4232			age of intrusion		"%K2O=0.0575, 0.0572; 40AR-RAD=0.203XE-10, 0.203XE-10 MOLES/GM"	INITIAL 87SR/86SR IS PROBABLY 0.705
6859	1	238.52	13	whole rock	conventional K-Ar	KA74-202	"4.72E-04, 0.585E-04, 1.19E-04*"	0.0937	0.344	3134			age of intrusion		"%K2O=0.0916, 0.0958; 40AR-RAD=0.322XE-10, 0.355XE-10 MOLES/GM"	INITIAL 87SR/86SR IS PROBABLY 0.705
6860	1	16.23	5	zeolite	conventional K-Ar	KA74-204	"4.72E-04, 0.585E-04, 1.19E-04*"	0.98	0.23	1010					"%K2O=0.99, 0.96; 40AR-RAD=0.17XE-10, 0.28XE-10 MOLES/GM; HEULANDITE NOT BAKED BEFORE FUSION"	MINIMUM AGE FOR MINERAL; AGE IS LOW DUE TO ARGON LOSS; ZEOLITE PROBABLY FORMED SOON AFTER EMPLACEMENT OF THE DIABASE DIKE
6861	1	2.59	0.5	zeolite	conventional K-Ar	KA74-205	"4.72E-04, 0.585E-04, 1.19E-04*"	0.67	0.025	1411					"%K2O=0.67, 0.67, 0.66, 0.66; 40AR-RAD=0.029XE-10, 0.021XE-10 MOLES/GM; HARMOTOME WAS NOT BAKED BEFORE FUSION"	AGE IS LOW DUE TO ARGON LOSS; ZEOLITE PROBABLY FORMED SOON AFTER EMPLACEMENT OF THE DIABASE DIKE
6862	1	12.6	1.2	zeolite	conventional K-Ar	KA74-210	"4.72E-04, 0.585E-04, 1.19E-04*"	0.44	0.0801	66					"%K2O=0.42, 0.45; 40AR-RAD=0.0812XE-10, 0.0790XE-10 MOLES/GM; HEULANDITE WAS NOT BAKED BEFORE FUSION"	AGE IS LOW DUE TO ARGON LOSS; ZEOLITE PROBABLY FORMED SOON AFTER EMPLACEMENT OF THE DIABASE DIKE
6863	1	0.21		zeolite	conventional K-Ar	3-ETB	"4.962E-04, 0.581E-04, 1.1167E-04*"	16.35	0.0491	4					NO AGE CALCULATED	
6864	1	36.4	14	zeolite	conventional K-Ar	2-ETB	"4.72E-04, 0.585E-04, 1.19E-04*"	0.287	0.152	6					MATERIAL WAS NOT BAKED BEFORE FUSION	A MINIMUM AGE FOR THE HARMOTOME; AGE IS LOW DUE TO ARGON LOSS; ZEOLITE PROBABLY FORMED SOON AFTER EMPLACEMENT OF THE DIABASE DIKE
6865	1			zeolite		D3S-SHNPP		0.075							NO AGE CALCULATED AS NO RADIOGENIC ARGON DETECTED	
6866	1	1.24	1	zeolite	conventional K-Ar	D2-5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.671	0.012	3					LAUMONTITE WAS NOT BAKED BEFORE FUSION	AGE IS LOW DUE TO ARGON LOSS; ZEOLITE PROBABLY FORMED SOON AFTER EMPLACEMENT OF THE DIABASE DIKE
6866	2	5.02	2	zeolite	conventional K-Ar	D2-5	"4.72E-04, 0.585E-04, 1.19E-04*"	0.671	0.0486	6					LAUMONTITE WAS NOT BAKED BEFORE FUSION	AGE IS LOW DUE TO ARGON LOSS
6867	1	2.34	0.4	zeolite	conventional K-Ar	2-LIS	"4.72E-04, 0.585E-04, 1.19E-04*"	2.4	0.0808	8				THE SAMPLE IS A MIXTURE OF LAUMONTITE AND F-SAPONITE	MATERIAL WAS NOT BAKED BEFORE FUSION	AGE IS LOW DUE TO ARGON LOSS; ZEOLITE PROBABLY FORMED SOON AFTER EMPLACEMENT OF THE DIABASE DIKE
6913	1	1138.89	55	glauconite	conventional K-Ar	1	"4.72E-04, 0.584E-04, 1.19E-04*"	4.9	112	99						"THIS AGE ALSO REPORTED BY MUDGE (1972, P. A8, SAMPLE 483G, FIELD NO. HS487).  K-AR AND RB-SR AGES INDICATE THAT THE AGE IS AROUND 1100 M.Y."
6914	1	1075.76	55	glauconite	conventional K-Ar	2	"4.72E-04, 0.584E-04, 1.19E-04*"	7.98	169	99						"THIS AGE ALSO REPORTED BY MUDGE (1972, P. A8, SAMPLE 484G, FIELD NO. HS742).  K-AR AND RB-SR AGES INDICATE THAT THE AGE IS AROUND 1100 M.Y."
6915	1	1086.54	55	glauconite	conventional K-Ar	3	"4.72E-04, 0.584E-04, 1.19E-04*"	6.71	144	99						"THIS AGE ALSO REPORTED BY MUDGE (1972, P. A8, SAMPLE 516G, FIELD NO. HS730).  K-AR AND RB-SR AGES INDICATE THAT THE AGE IS AROUND 1100 M.Y."
6916	1	1065.8	55	glauconite	conventional K-Ar	4	"4.72E-04, 0.584E-04, 1.19E-04*"	7.84	164	99						"THIS AGE ALSO REPORTED BY MUDGE (1972, P. A8, SAMPLE 517G, FIELD NO. HS739).  K-AR AND RB-SR AGES INDICATE THAT THE AGE IS AROUND 1100 M.Y."
6917	1	1127.34	55	glauconite	conventional K-Ar	5	"4.72E-04, 0.584E-04, 1.19E-04*"	8.25	186	100						"A K-AR AGE OF 1110 +/- 55 M.Y. WAS REPORTED FOR THIS SAMPLE BY MUDGE (1972, P. A8, SAMPLE 379G, FIELD NO. HS411D).  K-AR AND RB-SR AGES INDICATE THAT THE AGE IS AROUND 1100 M.Y."
6919	1	1062.72	50	glauconite	conventional K-Ar	7	"4.72E-04, 0.584E-04, 1.19E-04*"	8.35	174	99						K-AR AND RB-SR AGES INDICATE THAT THE TIME OF SEDIMENTATION WAS AROUND 1100 M.Y. AGO
6920	1	1112.31	55	glauconite	conventional K-Ar	8	"4.72E-04, 0.584E-04, 1.19E-04*"	5.6	124	95						K-AR AND RB-SR AGES INDICATE THAT THIS IS THE PROBABLE TIME OF SEDIMENTATION
6923	1	1048.52	50	glauconite	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.19E-04*"	8.06	165	93						"THIS AGE ALSO REPORTED BY MUDGE (1972, P. A8, SAMPLE 482G, FIELD NO. HS481).  K-AR AND RB-SR AGES INDICATE THAT THE AGE IS AROUND 1100 M.Y."
6924	1	772.16	50	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04*"	5.91	82	97			minimum age of intrusion			
6925	1	1335.95	45	biotite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04*"	7.3	208	100			age of metamorphic crystallization			
6964	1	20		hornblende	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.584E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	
6965	1	73.7	2.4	muscovite	conventional K-Ar	BP-1	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	"AGE ALSO REPORTED BY HUGHES (1975, NORTHWEST GEOLOGY)"
6966	1	70.1	2.5	biotite	conventional K-Ar	HM-57	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN	"AGE ALSO REPORTED BY HUGHES (1975, NORTHWEST GEOLOGY)"
6967	1	70.6	2.3	biotite	conventional K-Ar	WC-7	"4.72E-04, 0.585E-04, 1.19E-04"						age of intrusion		NO ANALYTICAL DATA GIVEN	"AGE ALSO REPORTED BY HUGHES (1975, NORTHWESGNEOUS ROCKS IN THE HENDERSON-WILLOW CREEK IGNEOUS BELT, GRANITE COUNTY, MONTANA:  PH.D. DISSERTATION, MICHIGAN TECH. UNIVERSITY, HOUGHTON, MICHIGAN, P. 236."
6968	1	48.7	1.7	biotite	conventional K-Ar	TV-1	"4.72E-04, 0.585E-04, 1.19E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	"AGE ALSO REPORTED BY HUGHES (1975, NORTHWEST GEOLOGY)"
6969	1	1110		amphiboles	conventional K-Ar	LP-4	"4.76E-04, 0.589E-04, 1.18E-04"	0.48					age of intrusion	BROWN AMPHIBOLE		
6970	1	1400		amphiboles	conventional K-Ar	PM-1	"4.76E-04, 0.589E-04, 1.18E-04"	0.3						GREEN AMPHIBOLE		OTHER AGE DETERMINATIONS INDICATE THAT THIS AGE IS PROBABLY TOO OLD
6986	1	3123.74	200	whole rock	conventional K-Ar	53NB-11	"4.72E-04, 0.584E-04, 1.19E-04*"	0.16	19.32	97					K=0.13%	THIS AGE IS APPARENTLY TOO OLD FOR TIME OF EMPLACEMENT
6986	2	2402.37		plagioclase	conventional K-Ar	53NB-11	"4.72E-04, 0.584E-04, 1.19E-04*"	0.28	20.27	87					K=0.23%	TIME OF INTRUSION WAS PROBABLY 2750 M.Y. AGO
6986	3	2486.83		plagioclase	conventional K-Ar	53NB-11	"4.72E-04, 0.584E-04, 1.19E-04*"	0.28	21.59	97					K=0.23%	TIME OF INTRUSION WAS AROUND 2750 M.Y. AGO
6987	1	6882.45		enstatite	conventional K-Ar	61SC	"4.72E-04, 0.584E-04, 1.19E-04*"	0.0024	2.766	87				ENSTATITE	POTASSIUM DETERMINED BY ISOTOPE DILUTION; K=0.0020%	AGE SPURIOUS; EXCESS ARGON PRESENT
6987	2	6018.99		augite-ferroaugite	conventional K-Ar	61SC	"4.72E-04, 0.584E-04, 1.19E-04*"	0.0054	3.803	80					POTASSIUM DETERMINED BY ISOTOPE DILUTION; K=0.0045%	AGE SPURIOUS; EXCESS ARGON PRESENT
6987	3	1976.63		plagioclase	conventional K-Ar	61SC	"4.72E-04, 0.584E-04, 1.19E-04*"	0.0598	3.09	71					POTASSIUM DETERMINED BY ISOTOPE DILUTION; K=0.0496%	AGE IS TOO YOUNG FOR AGE OF EMPLACEMENT
6987	4	2003.63		plagioclase	conventional K-Ar	61SC	"4.72E-04, 0.584E-04, 1.19E-04*"	0.0598	3.16	81					POTASSIUM DETERMINED BY ISOTOPE DILUTION; K=0.0496%	AGE IS TOO YOUNG FOR AGE OF EMPLACEMENT
6988	1	2221.31		plagioclase		55MV-29	"4.72E-04, 0.584E-04, 1.19E-04*"	0.205	12.915	54					K=0.17%	AGE IS TOO YOUNG FOR AGE OF EMPLACEMENT
6989	1	2254.29	200	whole rock	conventional K-Ar	55BE-1	"4.72E-04, 0.584E-04, 1.19E-04*"	0.0795	5.139	85					K=0.066%	AGE IS TOO YOUNG FOR AGE OF EMPLACEMENT
6990	1	2641.6		phlogopite	conventional K-Ar	61MV-4A	"4.72E-04, 0.584E-04, 1.19E-04*"	8.75	755.48	99			minimum age of intrusion	-14 +35 MESH RANGE	K=7.26%	
6990	2	2609.49		phlogopite	conventional K-Ar	61MV-4B	"4.72E-04, 0.584E-04, 1.19E-04*"	9.035	762.19	99			minimum age of intrusion	-35 +60 MESH RANGE	K=7.50%	
6990	3	2546.23		phlogopite	conventional K-Ar	61MV-4C	"4.72E-04, 0.584E-04, 1.19E-04*"	8.89	716.16	99				-60 +170 MESH RANGE	K=7.38%	AGE TOO YOUNG; SOME LOSS OF RADIOGENIC ARGON
6991	1	2620.63		phlogopite	conventional K-Ar	54ER-136	"4.72E-04, 0.584E-04, 1.19E-04*"	6.96	591.9	98			minimum age of intrusion		K=5.78%	
6992	1	2654.56		phlogopite	conventional K-Ar	61MV-3	"4.72E-04, 0.584E-04, 1.19E-04*"	8.42	733.81	99			minimum age of intrusion		K=6.99%	
6993	1	2547.05		biotite	conventional K-Ar	53-424-1	"4.72E-04, 0.584E-04, 1.19E-04*"	9.32	751.25	99			minimum age of intrusion		K=7.74%	
7027	1	1750		biotite	conventional K-Ar	16(AK176)	"4.76E-04, 0.589E-04, 1.18E-04"	8.99					age of metamorphic crystallization		40AR/40K=0.171	
7027	2	1790		hornblende	conventional K-Ar	17(AK265)	"4.76E-04, 0.589E-04, 1.18E-04"	0.77					age of metamorphic crystallization		40AR/40K=0.177	
7028	1	1710		hornblende	conventional K-Ar	18(AK167)	"4.76E-04, 0.589E-04, 1.18E-04"	1.11					age of metamorphic crystallization		40AR/40K=0.165	
7029	1	1750		biotite	conventional K-Ar	19(AK177)	"4.76E-04, 0.589E-04, 1.18E-04"	8.13					age of metamorphic crystallization		40AR/40K=0.170	
7030	1	2440		biotite	conventional K-Ar	53(AK253)	"4.76E-04, 0.589E-04, 1.18E-04"	9.33					age of metamorphic crystallization		40AR/40K=0.295	
7031	1	2450		biotite	conventional K-Ar	54(AK254)	"4.76E-04, 0.589E-04, 1.18E-04"	8.99					age of metamorphic crystallization		40AR/40K=0.307	
7032	1	2200		hypersthene	conventional K-Ar	55(AK266)	"4.76E-04, 0.589E-04, 1.18E-04"	0.59					age of metamorphic crystallization		40AR/40K=0.246	
7033	1	1720		biotite	conventional K-Ar	56(AK36)	"4.76E-04, 0.589E-04, 1.18E-04"	7.9					age of metamorphic crystallization		40AR/40K=0.166	
7034	1	753.21		illite	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.583E-04*"	10.38	139.7				age meaning uncertain (analysis questionable)			
7035	1	2700		Unk	conventional K-Ar	(NOT GIVEN)	no decay constants given						minimum age of intrusion		NO ANALYTICAL DATA GIVEN	
7036	1	2660		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						minimum age of intrusion		NO ANALYTICAL DATA GIVEN	
7037	1	3065		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given								NO ANALYTICAL DATA GIVEN	AGE APPEARS TOO OLD.  NUNES AND TILTON(1971) STATE THAT ADDITIONAL AGES OF 1880 M.Y. AND 2330 M.Y. WERE OBTAINED FROM DIFFERENT BIOTITE FRACTIONS FROM THE SAME HORNFELS SAMPLE.  THE HORNFELS IS PROBABLY AROUND 2750 M.Y. OLD.
7038	1	2700		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN.  BIOTITE AGES RANGE FROM 2470-2700 M.Y.	
7039	1	2700		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						age of intrusion		NO ANALYTICAL DATA GIVEN.  BIOTITE AGES RANGE FROM 2470-2700 M.Y.	
7040	1	1930		plagioclase	conventional K-Ar	(NOT GIVEN)	no decay constants given						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	
7041	1	2330		biotite	conventional K-Ar	(NOT GIVEN)	no decay constants given						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	
7042	1	1760		hornblende	conventional K-Ar	(NOT GIVEN)	no decay constants given						minimum age of metamorphic crystallization		NO ANALYTICAL DATA GIVEN	
7049	1	1191.29	35	K feldspar	conventional K-Ar	F1024	"4.72E-04, 0.585E-04, 1.19E-04*"	4.12	100.1	98				K-FELDSPAR PLUS QUARTZ		A SPURIOUS AGE (TOO YOUNG)
7049	2	1660.39	40	biotite	conventional K-Ar	B1024	"4.72E-04, 0.585E-04, 1.19E-04*"	8.12	318.5	100			initial age disturbed by later metamorphism			
7049	3	1822.67	50	muscovite	conventional K-Ar	M1024	"4.72E-04, 0.585E-04, 1.19E-04*"	10.26	465.4	99			age of later metamorphism			
7082	1	0.31	0.01	glass		76GQ21	"4.962E-04, 0.581E-04, 1.1167E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	AN AGE OF 0.304 +/- 0.022 M.Y. REPORTED IN USGS OPEN FILE REPORT 79-1657 FOR BIG SOUTHERN BUTTE; THIS AGE IS AVERAGE OF K-AR AGES 0.296 AND 0.312 M.Y.
7083	1	0.3	0.01	whole rock		76G022	"4.962E-04, 0.581E-04, 1.1167E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	AN AGE OF 0.304 +/- 0.022 M.Y. REPORTED IN USGS OPEN FILE REPORT 79-1657 FOR BIG SOUTHERN BUTTE; THIS AGE IS AVERAGE OF K-AR AGES 0.296 AND 0.312 M.Y.
7084	1	1.42	0.02	whole rock	conventional K-Ar	(NOT GIVEN)	"4.962E-04, 0.581E-04, 1.1167E-04"						age of volcanism		NO ANALYTICAL DATA GIVEN	THIS AGE ALSO REPORTED IN USGS OPEN-FILE REPORTS 78-691 (P. 47) AND 79-669
7085	1			whole rock	conventional K-Ar	MAK77-S47	no decay constants given	0.553		0			minimum age of volcanism		AGE IS LESS THAN 0.490 M.Y.	THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS LESS-THAN-0.450 M.Y.
7085	2			whole rock	conventional K-Ar	MAK77-S47	no decay constants given	0.553		0			age of volcanism		AGE IS LESS THAN 0.450 M.Y.	THE WEIGHTED-MEAN AGE FOR 2 SAMPLES IS LESS-THAN-0.450 M.Y.
7086	1			whole rock	conventional K-Ar	MAK77-S66	no decay constants given	0.544		0			age of volcanism		AGE IS LESS-THAN-0.570 M.Y.	THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS LESS-THAN-0.490 M.Y.
7086	2			whole rock	conventional K-Ar	MAK77-S66	no decay constants given	0.544		0			age of volcanism		AGE IS LESS-THAN-0.490 M.Y.	THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS LESS-THAN-0.490 M.Y.
7087	1			whole rock	conventional K-Ar	MAK77-S119	no decay constants given	0.54		0			age of volcanism		AGE IS LESS-THAN-0.490 M.Y.	THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS LESS-THAN-0.490 M.Y.
7087	2			whole rock	conventional K-Ar	MAK77-S119	no decay constants given	0.54		0			age of volcanism		AGE IS LESS-THAN-0.620 M.Y.	THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS LESS-THAN-0.490 M.Y.
7088	1	0.65	0.13	whole rock	conventional K-Ar	MAK77-S50	"4.962E-04, 0.581E-04, 1.1167E-04"	0.604	0.0056	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.530 +/- 0.090 M.Y.  AN INCORRECT AGE OF 0.135 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. II) IN USGS OPEN-FILE REPORT 78-665.
7088	2	0.43	0.12	whole rock	conventional K-Ar	MAK77-S50	"4.962E-04, 0.581E-04, 1.1167E-04"	0.604	0.0037	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.530 +/- 0.090 M.Y.  AN INCORRECT AGE OF 0.135 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. II) IN USGS OPEN-FILE REPORT 78-665.
7089	1	0.36	0.1	whole rock	conventional K-Ar	MAK77-S86	"4.962E-04, 0.581E-04, 1.1167E-04"	0.616	0.0032	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.320 +/- 0.065 M.Y.  AN INCORRECT AGE OF 0.135 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. II) IN USGS OPEN-FILE REPORT 78-665.
7089	2	0.28	0.09	whole rock	conventional K-Ar	MAK77-S86	"4.962E-04, 0.581E-04, 1.1167E-04"	0.616	0.0025	1			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.320 +/- 0.065 M.Y.  AN INCORRECT AGE OF 0.135 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. II) IN USGS OPEN-FILE REPORT 78-665.
7090	1	0.52	0.09	whole rock	conventional K-Ar	MAK77-S122	"4.962E-04, 0.581E-04, 1.1167E-04"	0.602	0.0045	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.405 +/- 0.060 M.Y.  AN INCORRECT AGE OF 0.135 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. II) IN USGS OPEN-FILE REPORT 78-665.
7090	2	0.29	0.09	whole rock	conventional K-Ar	MAK77-S122	"4.962E-04, 0.581E-04, 1.1167E-04"	0.602	0.0026	1			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.405 +/- 0.060 M.Y.  AN INCORRECT AGE OF 0.135 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. II) IN USGS OPEN-FILE REPORT 78-665.
7091	1	0.5	0.13	whole rock	conventional K-Ar	MAK77-S54	"4.962E-04, 0.581E-04, 1.1167E-04"	0.588	0.0042	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.460 +/- 0.085 M.Y.  AN INCORRECT AGE OF 0.143 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. III) IN USGS OPEN-FILE REPORT 78-665.
7091	2	0.43	0.11	whole rock	conventional K-Ar	MAK77-S54	"4.962E-04, 0.581E-04, 1.1167E-04"	0.588	0.0036	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.460 +/- 0.085 M.Y.  AN INCORRECT AGE OF 0.143 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. III) IN USGS OPEN-FILE REPORT 78-665.
7092	1	0.45	0.13	whole rock	conventional K-Ar	MKA77-S72	"4.962E-04, 0.581E-04, 1.1167E-04"	0.558	0.0037	1			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.395 +/- 0.085 M.Y.  AN INCORRECT AGE OF 0.143 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. III) IN USGS OPEN-FILE REPORT 78-665.
7092	2	0.36	0.1	whole rock	conventional K-Ar	MAK77-S72	"4.962E-04, 0.581E-04, 1.1167E-04"	0.558	0.003	1			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.395 +/- 0.085 M.Y.  AN INCORRECT AGE OF 0.143 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. III) IN USGS OPEN-FILE REPORT 78-665.
7093	1	0.26	0.06	whole rock	conventional K-Ar	MAK77-S107	"4.962E-04, 0.581E-04, 1.1167E-04"	0.586	0.0022	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.270 +/- 0.040 M.Y.  AN INCORRECT AGE OF 0.143 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. III) IN USGS OPEN-FILE REPORT 78-665.
7093	2	0.28	0.06	whole rock	conventional K-Ar	MAK77-S107	"4.962E-04, 0.581E-04, 1.1167E-04"	0.586	0.0024	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.270 +/- 0.040 M.Y.  AN INCORRECT AGE OF 0.143 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. III) IN USGS OPEN-FILE REPORT 78-665.
7094	1	0.53	0.1	whole rock	conventional K-Ar	MAK77-S108	"4.962E-04, 0.581E-04, 1.1167E-04"	0.585	0.0043	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.390 +/- 0.060 M.Y.  AN INCORRECT AGE OF 0.143 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. III) IN USGS OPEN-FILE REPORT 78-665.
7094	2	0.36	0.05	whole rock	conventional K-Ar	MAK77-S108	"4.962E-04, 0.581E-04, 1.1167E-04"	0.585	0.003	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.390 +/- 0.060 M.Y.  AN INCORRECT AGE OF 0.143 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. III) IN USGS OPEN-FILE REPORT 78-665.
7095	1	0.51	0.15	whole rock	conventional K-Ar	MAK77-S111	"4.962E-04, 0.581E-04, 1.1167E-04"	0.742	0.0054	1			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.440 +/- 0.085 M.Y.  AN INCORRECT AGE OF 0.210 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. IV) IN USGS OPEN-FILE REPORT 78-665.
7095	2	0.42	0.07	whole rock	conventional K-Ar	MAK77-S111	"4.962E-04, 0.581E-04, 1.1167E-04"	0.742	0.0046	2			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.440 +/- 0.085 M.Y.  AN INCORRECT AGE OF 0.210 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. IV) IN USGS OPEN-FILE REPORT 78-665.
7096	1	0.32	0.04	whole rock	conventional K-Ar	MAK77-S129	"4.962E-04, 0.581E-04, 1.1167E-04"	0.809	0.0037	3			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.310 +/- 0.030 M.Y.  AN INCORRECT AGE OF 0.210 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. IV) IN USGS OPEN-FILE REPORT 78-665.
7096	2	0.3	0.04	whole rock	conventional K-Ar	MAK77-S129	"4.962E-04, 0.581E-04, 1.1167E-04"	0.809	0.0035	3			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.310 +/- 0.030 M.Y.  AN INCORRECT AGE OF 0.210 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. IV) IN USGS OPEN-FILE REPORT 78-665.
7097	1	0.45	0.05	whole rock	conventional K-Ar	MAK77-S114	"4.962E-04, 0.581E-04, 1.1167E-04"	0.944	0.0061	3						AN INCORRECT AGE OF 0.352 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. V-A) IN USGS OPEN-FILE REPORT 78-665.
7098	1	0.59	0.08	whole rock	conventional K-Ar	MAK77-S78	"4.962E-04, 0.581E-04, 1.1167E-04"	0.942	0.008	3			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.595 +/- 0.060 M.Y.  AN INCORRECT AGE OF 0.352 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. V-A) IN USGS OPEN-FILE REPORT 78-665.
7098	2	0.6	0.09	whole rock	conventional K-Ar	MAK77-S78	"4.962E-04, 0.581E-04, 1.1167E-04"	0.942	0.0082	3			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.595 +/- 0.060 M.Y.  AN INCORRECT AGE OF 0.352 M.Y. WAS REPORTED FOR THIS BASALT FLOW (NO. V-A) IN USGS OPEN-FILE REPORT 78-665.
7099	1	0.45	0.05	whole rock	conventional K-Ar	MAK77-S63	"4.962E-04, 0.581E-04, 1.1167E-04"	0.998	0.0065	3			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.460 +/- 0.040 M.Y.  AN INCORRECT AGE OF 0.331 M.Y. WAS REPORTED FOR THIS BASALT FLOW IN USGS OPEN-FILE REPORT 78-665.
7099	2	0.47	0.06	whole rock	conventional K-Ar	MAK77-S63	"4.962E-04, 0.581E-04, 1.1167E-04"	0.998	0.0067	3			age of volcanism			THE WEIGHTED-MEAN AGE FOR 2 ANALYSES IS 0.460 +/- 0.040 M.Y.  AN INCORRECT AGE OF 0.331 M.Y. WAS REPORTED FOR THIS BASALT FLOW IN USGS OPEN-FILE REPORT 78-665.
7156	1	0.36	0.06	whole rock	conventional K-Ar	1. USGS(M)-66AHR-136B	"4.962E-04, 0.581E-04, 1.1167E-04"	0.7935	0.0042	16			age of volcanism		"K2O=0.777, 0.798, 0.798, AND 0.801%"	
7157	1	1.46	0.13	whole rock	conventional K-Ar	2. USGS(M)-66AHR-217B	"4.962E-04, 0.581E-04, 1.1167E-04"	0.706	0.0149	19			age of volcanism		"0.704, 0.708, 0.708, 0.703% K2O"	
7158	1	0.66	0.19	whole rock	conventional K-Ar	3. USGS(M)-66AHR-218A	"4.962E-04, 0.581E-04, 1.1167E-04"	1.008	0.0095	4					"1.027, 1.023, 0.980, 1.000% K2O"	MINIMUM AGE FOR BASALT; THE MAGNETICALLY REVERSED FEATURE SUGGESTS THAT THE ROCK IS CONSIDERABLY OLDER THAN ITS MINIMUM AGE
7159	1	0.24	0.14	whole rock	conventional K-Ar	4. USGS(M)-71AHR-134A	"4.962E-04, 0.581E-04, 1.1167E-04"	0.803	0.0028	5			age not evaluated		"0.799, 0.806, 0.803, 0.806% K2O"	
7160	1	59.9	3	biotite	conventional K-Ar	5. USGS(M)-62AGZ-7	"4.962E-04, 0.581E-04, 1.1167E-04"	6.6	5.784	72			age of intrusion			"THE CALCULATED AGE AGREES WITH TWO OTHER K-AR BIOTITE AGES FROM GRANODIORITE PLUTONS ON OTHER SHUMAGIN ISLANDS (KIENLE AND TURNER, 1976, GEOLOGIC REPORT 51, P. 9-11)"
7163	1	88	4	biotite	conventional K-Ar	6. USGS(W)-62ARR192	"4.962E-04, 0.581E-04, 1.1167E-04"	9.1	11.88	96			initial age disturbed by later metamorphism			"BROSGE AND REISER (1971, USGS OPEN-FILE MAP 479) REPORTED AN AGE OF 86 M.Y. FOR THIS SAMPLE.  THE DISCORDANCY BETWEEN THE K-AR AND PB-A AGES SUGGEST THAT THE GRANITE FORMED DURING THE LATE PALEOZOIC AND THEN WAS DISTURBED BY AN OROGENIC EVENT DURING THE LATE MESOZOIC"
7164	1	90	4	biotite	conventional K-Ar	9. USGS(W)-62ABE264	"4.962E-04, 0.581E-04, 1.1167E-04"	8.85	11.78	94			initial age disturbed by later metamorphism			"AGE REPORTED AS 88 M.Y. BY BROSGE AND REISER (1971, USGS OPEN-FILE MAP 479) FOR THIS SAMPLE.  THE DISCORDANCY BETWEEN THE K-AR AND PB-A AGES SUGGEST THAT THE GRANITE FORMED DURING THE LATE PALEOZOIC AND THEN WAS DISTURBED BY AN OROGENIC EVENT DURING THE LATE MESOZOIC"
7164	2	94	5	muscovite	conventional K-Ar	9. USGS(W)-62ABE264	"4.962E-04, 0.581E-04, 1.1167E-04"	10.3	14.34	96			initial age disturbed by later metamorphism			"AGE REPORTED AS 92 M.Y. BY BROSGE AND REISER (1971, USGS OPEN-FILE MAP 479) FOR THIS SAMPLE"
7165	1	93	5	biotite	conventional K-Ar	10. USGS(W)-60ATB104	"4.962E-04, 0.581E-04, 1.1167E-04"	8.28	11.33	90			age of intrusion			
7166	1	59	3	biotite	conventional K-Ar	11. USGS(W)-60ATB105	"4.962E-04, 0.581E-04, 1.1167E-04"	9.05	7.756	92			age of intrusion			
7167	1	64.9	2.5	biotite	conventional K-Ar	12. USGS(M)-62ACH-65	"4.962E-04, 0.581E-04, 1.1167E-04"	8.465	8.051	90			age of intrusion		K2O=8.53 AND 8.40%	"CHAPMAN, WEBER, AND TABER (1971, USGS OPEN-FILE REPORT) REPORTED AN AGE OF 63.3 M.Y. FOR THIS SAMPLE"
7173	1	60.8	3	biotite	conventional K-Ar	18. USGS(M)-62AME-120	"4.962E-04, 0.581E-04, 1.1167E-04"	6.76	6.016	45			age of intrusion			
7173	2	61.9	2.5	muscovite	conventional K-Ar	18. USGS(M)-62AME-120	"4.962E-04, 0.581E-04, 1.1167E-04"	8.39	7.604	90			age of intrusion			
7174	1	58.2	1.5	biotite	conventional K-Ar	18. USGS(M)-63AME-66	"4.962E-04, 0.581E-04, 1.1167E-04"	7.66	6.519	72			age of intrusion		"7.63, 7.69% K2O"	
7175	1	8.5	0.2	whole rock	conventional K-Ar	20. USGS(D)-MWC-55-74	"4.962E-04, 0.581E-04, 1.1167E-04"	2.115	0.2594	73			minimum age of volcanism	-60+100 MESH	"2.12, 2.11% K2O"	
7176	1	12.9	0.6	whole rock	conventional K-Ar	21. USGS(D)-MWC-56-74	"4.962E-04, 0.581E-04, 1.1167E-04"	0.875	0.1631	49			minimum age of volcanism	-60+100 MESH	"0.88, 0.87% K2O"	
7177	1	24.2	1.2	biotite	conventional K-Ar	22. USGS(W)-VAW-60-29	"4.962E-04, 0.581E-04, 1.1167E-04"	7.34	2.577	54			age of volcanism			"MIOCENE/OLIGOCENE VOLCANICS (OLMSTED AND OTHERS, 1973, USGS PP 486-H, PH39, REPORTED AN AGE OF 23 M.Y. FOR THIS BIOTITE)"
7178	1	26.9	1	biotite	conventional K-Ar	23. 5-15-55A(PED-4-65)	"4.962E-04, 0.581E-04, 1.1167E-04"	7.73	3.02	48			age of volcanism			"OLIGOCENE VOLCANICS (OLMSTED, 1973, USGS PP 486-H, PH39, REPORTED AGE OF 26.3 M.Y. FOR THIS BIOTITE, ANALYTICAL DATA FROM DAMON AND OTHERS, 1965, P. 43)"
7179	1	67.3	2	biotite	conventional K-Ar	24. USGS(D)-W-65A	"4.962E-04, 0.581E-04, 1.1167E-04"	7.885	7.802	90			age of intrusion		K2O=7.88 AND 7.89%	"KRIEGER (1974, USGS MAP GQ-1106) REPORTED AN AGE OF 66.0 M.Y. FOR THIS BIOTITE"
7180	1	67.3	2	biotite	conventional K-Ar	25. USGS(D)-W-86	"4.962E-04, 0.581E-04, 1.1167E-04"	8.57	8.456	91			age of intrusion		K2O=8.56 AND 8.58%	"KRIEGER (1974, USGS MAP GQ-1106) REPORTED AN AGE OF 65.7 M.Y. FOR THIS BIOTITE"
7181	1	1320	40	muscovite	conventional K-Ar	26. USGS(D)-W-38	"4.962E-04, 0.581E-04, 1.1167E-04"	10.48	292.5	99					K2O=10.46 AND 10.50%	"KRIEGER (1974, USGS MAP GQ-1106) REPORTED AN AGE OF 1310 M.Y. FOR THIS MUSCOVITE; MUSCOVITE AGE MAY HAVE BEEN REDUCED BY THERMAL EFFECTS FROM NEARBY LARAMIDE INTRUSIVES"
7182	1	22.8	0.7	biotite	conventional K-Ar	27. USGS(D)-W-10	"4.962E-04, 0.581E-04, 1.1167E-04"	8.645	2.855	74			age of volcanism		K2O=8.67 AND 8.62%	"KRIEGER (1974, USGS MAP GQ-1106) REPORTED AN AGE OF 22.3 M.Y. FOR THIS BIOTITE"
7189	1	25.5	0.6	biotite	conventional K-Ar	34. USGS(D)-67-JDS-1	"4.962E-04, 0.581E-04, 1.1167E-04"	9.2	3.409	84			age of intrusion		"9.21, 9.19% K2O"	"THIS AGE APPEARS CORRECT AS OTHER NEARBY IGNEOUS INTRUSIONS HAVE BEEN DATED AS MIOCENE. THE SANIDINE AGES ARE  SPURIOUS; PROBABLY EXCESS ARGON IS PRESENT. A WHOLE-ROCK AGE OF 30-31 M.Y. IS REPORTED FOR THIS ROCK (POHLMANN, 1967) BUT THE AGE IS SPURIOUS"
7189	2	25.7	0.6	biotite	conventional K-Ar	34. USGS(D)-67-JDS-1	"4.962E-04, 0.581E-04, 1.1167E-04"	9.2	3.434	77			age of intrusion		"9.21, 9.19% K2O"	
7189	3	42.1	1	sanidine	conventional K-Ar	34. USGS(D)-67-JDS-1	"4.962E-04, 0.581E-04, 1.1167E-04"	9.56	5.857	91					"9.50, 9.52, 9.66% K2O"	SPURIOUS AGE
7189	4	41.8	1	sanidine	conventional K-Ar	34.USGS(D)-67-JDS-1	"4.962E-04, 0.581E-04, 1.1167E-04"	9.56	5.817	91						SPURIOUS AGE
7190	1	134	20	glaucophane-crossite	conventional K-Ar	35. USGS(D)-P-522	"4.962E-04, 0.581E-04, 1.1167E-04"	0.068	0.1362	25						"THE K-AR AGE GIVEN BY THECROSSITE IS APPARENTLY TOO YOUNG; THE PROBABLE AGE OF THE METAMORPHISM IS ABOUT 150 M.Y. (COLEMAN AND LANPHERE, 1971, GSA BULL., V. 82, P. 2397-2412)"
7191	1	89	13	glaucophane-crossite	conventional K-Ar	36. USGS(D)-63-YB-107	"4.962E-04, 0.581E-04, 1.1167E-04"	0.05	0.0653	27						"THE AGE GIVEN BY THE CROSSITE APPEARS SPURIOUS; THE METAMORPHISM PROBABLY OCCURRED DURING THE JURASSIC (COLEMAN AND LANPHERE, 1971, GSA BULL., V. 82, P. 2397-2412)"
7192	1	130	12	glaucophane-crossite	conventional K-Ar	37. USGS(D)-26-CZ-59	"4.962E-04, 0.581E-04, 1.1167E-04"	0.37	0.7181	81						"THE AGE REPRESENTS THE TIME OF METAMORPHISM AND AGREES WITH THE 131 M.Y. AGE (RECALCULATED) GIVEN BY COEXISTANT MUSCOVITE (PHENGITE)(LEE AND OTHERS, 1964, USGS PROF. PAPER 475-D) ALSO SEE COLEMAN AND LANPHERE, 1971"
7193	1	86	8	glaucophane-crossite	conventional K-Ar	38. USGS(D)-57-RGC-58B	"4.962E-04, 0.581E-04, 1.1167E-04"	0.11	0.1394	54						"THE AGE SEEMS MUCH TOO YOUNG. SEE LEE AND OTHERS, 1964"
7194	1	96	3	hornblende	conventional K-Ar	39. USGS(M)-KA-399	"4.962E-04, 0.581E-04, 1.1167E-04"	1	1.414	87			age not evaluated			"COMPTON (1966, P. 278), EVERNDEN AND KISTLER (1970, P. 4, ENTRY 249) AND MARVIN(1968) REPORTED AN AGE OF 92 M.Y. FOR THIS HORNBLENDE"
7195	1	4.16	0.41	plagioclase	conventional K-Ar	40. USGS(M)-9-FS-1	"4.962E-04, 0.581E-04, 1.1167E-04"	0.7565	0.0453	14					"0.745, 0.768% K2O"	"AGE APPEARS RELIABLE AND IS IN GOOD AGREEMENT WITH AGES OF OTHER TUFFS IN THIS REGION THAT HAVE BEEN DATED AND CORRELATED BY SARNA-WOJCICKI (1976, USGS PROF. PAPER 972)"
7196	1	3.33	0.23	plagioclase	conventional K-Ar	41. USGS(M)-7-218E-2	"4.962E-04, 0.581E-04, 1.1167E-04"	0.726	0.0349	23					"0.725, 0.727% K2O"	"PLAGIOCLASE CONCENTRATE OBTAINED FROM PUMICE BOMBS IN ASH-FLOW TUFF OF SONOMA VOLCANICS, EXTREME SOUTHEASTERN PART OF GEOGRAPHIC OCCURRENCE. THE CALCULATED AGE IS YOUNGER THAN OTHER AGES OBTAINED FOR TUFFS IN WEST-CENTRAL CALIFORNIA (SARNA-WOJCICKI, USGS PROF. PAPER 972)."
7198	1			plagioclase		43. USGS(M)-1-KA-1	"4.962E-04, 0.581E-04, 1.1167E-04"	0.4405	0	0					"0.440, 0.441% K2O"	"NO AGE CALCULATED. CORRELATION OF THIS TUFF WITH OTHER RADIOMETRICALLY DATED TUFFS (SARNA-WOJCICKI, 1976, USGS PROF. PAPER 972) SUGGEST IT'S MOST PROBABLE AGE IS BETWEEN 0.4-1.1 M.Y."
7199	1	0.46	0.19	plagioclase	conventional K-Ar	44. USGS(M)-2-KA-1	"4.962E-04, 0.581E-04, 1.1167E-04"	0.444	0.0029	6					"0.444, 0.444% K2O"	"CORRELATION OF THIS TUFF WITH OTHER RADIOMETRICALLY DATED TUFFS (SARNA-WOJCICKI, 1976, USGS PROF. PAPER 972) SUGGEST THIS CALCULATED AGE IS RELIABLE"
7200	1			hornblende		45. USGS(M)-3-KA-1	"4.962E-04, 0.581E-04, 1.1167E-04"	0.2975	0	0						NO AGE CALCULATED. STRATIGRAPHIC CONSIDERATIONS SUGGEST THAT TUFF IS LESS THAN 2.2 M.Y. OLD
7201	1	1.2	0.5	plagioclase	conventional K-Ar	46. USGS(M)-4-KA-3	"4.962E-04, 0.581E-04, 1.1167E-04"	0.405	0.0068	3			maximum age of volcanism		0.404 AND 0.406% K2O	"CORRELATION OF THIS TUFF WITH OTHER RADIOMETRICALLY DATED TUFFS (SARNA-WOJCICKI, 1976, USGS PROF. PAPER 973) SUGGESTS THAT THIS CALCULATED AGE IS IN THE CORRECT AGE RANGE; OTHER SAMPLES COLLECTED FROM THIS TUFF STRONGLY SUGGEST THAT THE PLAGIOCLASE IS, IN PART, OLDER, DETRITAL PLAGIOCLASE AND THAT THIS CALCULATED AGE IS A MAXIMUM AGE FOR THE TUFF."
7202	1	2.2	0.3	plagioclase	conventional K-Ar	47. USGS(M)-5-KA-4	"4.962E-04, 0.581E-04, 1.1167E-04"	0.4295	0.0136	10				MIXTURE OF CLEAR TO CHALKY-DISCOLORED GRAINS	"0.430, 0.429% K2O"	AGE APPEARS TOO OLD; PROBABLY PRESENCE OF DETRITAL PLAGIOCLASE
7202	2	0.7	0.5	plagioclase	conventional K-Ar	47. USGS(M)-6-KA-4	"4.962E-04, 0.581E-04, 1.1167E-04"	0.4295	0.0044	3				CLEAR GRAINS	"0.431, 0.428% K2O"	"CORRELATION OF THIS TUFF WITH OTHER RADIOMETRICALLY DATED TUFFS (SARNA-WOJCICKI, 1976, USGS PROF. PAPER 972) SUGGESTS THAT THIS CALCULATED AGE IS IN THE CORRECT AGE RANGE, 0.4-1.1 M.Y."
7203	1	11.7	0.5	whole rock	conventional K-Ar	48. USGS(D)-742-45	"4.962E-04, 0.581E-04, 1.1167E-04"	1.24	0.2104	62			age of intrusion		"1.24, 1.27% K2O"	"MIOCENE ANDESITE PLUG OR VOLCANIC NECK (BATEMAN AND WONES, 1972)"
7205	1	7.35	0.22	whole rock	conventional K-Ar	50. USGS(M)-JFM74421A	"4.962E-04, 0.581E-04, 1.1167E-04"	0.838	0.0889	33			age of volcanism			
7206	1	6.05	0.18	biotite	conventional K-Ar	51. USGS(M)-JFM75513A	"4.962E-04, 0.581E-04, 1.1167E-04"	8.07	0.7039	52			age not evaluated		"8.10, 8.04% K2O"	"VIROPHYRE IS THE LOWEST UNALTERED ROCK IN THE VOLCANIC FACIES OF THE FURNACE CREEK FORMATION IN TYPE AREA. A VITROPHYRE IN THE UPPER PART OF THE VOLCANIC FACIES GAVE A BIOTITE AGE OF 5.18 +/- 0.15 M.Y. (MCALLISTER, 1973, USGS MAP I-782)"
7210	1	21.3	0.6	plagioclase	conventional K-Ar	55. USGS(M)-GV-72-2	"4.962E-04, 0.581E-04, 1.1167E-04"	0.506	0.1561	49			age of volcanism		"0.509, 0.503% K2O"	
7211	1	189	5	whole rock	conventional K-Ar	56. USGS(D)-74FP-1	"4.962E-04, 0.581E-04, 1.1167E-04"	3.94	11.3	95			minimum age of metamorphic crystallization		"3.94, 3.94% K2O"	"QUITE LIKELY, THIS AGE DOES NOT DATE THE TIME OF METAMORPHISM BUT MAY REFLECT THE THERMAL EFFECT ON THIS ROCK BY NEARBY LARGE GRANITOID PLUTONS."
7219	1	194	0.5	biotite	conventional K-Ar	64. USGS(D)-M-Q-4	"4.962E-04, 0.581E-04, 1.1167E-04"	8.805	2.471	71			age of volcanism		"8.83, 8.78% K2O"	
7219	2	18.6	0.8	hornblende	conventional K-Ar	64. USGS(D)-M-Q-4	"4.962E-04, 0.581E-04, 1.1167E-04"	0.78	0.2102	27			age of volcanism		"0.77, 0.79% K2O"	
7220	1	17.4	0.4	whole rock	conventional K-Ar	65. USGS(D)-MWC-30-76	"4.962E-04, 0.581E-04, 1.1167E-04"	2.46	0.6202	48			minimum age of volcanism	-60+100 MESH	"2.49, 2.50, 2.37, 2.47% K2O"	"IT DIRECTLY UNDERLIES THE TUFF OF PEACH SPRINGS (YOUNG AND BRENNAN, 1974) WHICH HAS AN APPARENT AGE OF 18.9 M.Y. (AVERAGE OF 19.2 M.Y.-BIOTITE AND 18.6 M.Y.-SANADINE--MARVIN AND DOBSON, 1979, P. 11, ENTRY 69).  THE BASALT FLOW IS THUS AT LEAST 18.9 M.Y. OLD; ITS CALCULATED AGE APPEARS TOO YOUNG.  THERE MAY HAVE BEEN DIFFUSIVE LOSS OF RADIOGENIC ARGON FROM THE ROCK."
7221	1	14.9	0.3	whole rock	conventional K-Ar	66. USGS(D)-MWC-31-76	"4.962E-04, 0.581E-04, 1.1167E-04"	1.55	0.3331	58				-60+100 MESH	"1.57, 1.56, 1.52, 1.56% K2O"	"BASALT DIRECTLY UNDERLIES THE TUFF OF PEACH SPRINGS WHICH HAS AN APPARENT AGE OF 18.9 M.Y. (MARVIN AND DOBSON, 1979, P. 11, ENTRY 69) BECAUSE OF ITS CLOSE ASSOCIATION WITH THE TUFF OF PEACH SPRINGS, AN AGE OF 14.9 M.Y. SEEMS TOO YOUNG."
7222	1	6.1	0.2	whole rock	conventional K-Ar	67. USGS(D)-MWC-72-74	"4.962E-04, 0.581E-04, 1.1167E-04"	2.09	0.1835	28			age of volcanism	-60+100 MESH	"2.08, 2.10% K2O"	
7223	1	87.9	2.1	biotite	conventional K-Ar	68. USGS(D)-MWC-39-74	"4.962E-04, 0.581E-04, 1.1167E-04"	9.655	12.52	96			age of intrusion		"9.65, 9.66% K2O"	
7223	2	90.7	1.4	orthoclase	conventional K-Ar	68. USGS(D)-MWC-39-74	"4.962E-04, 0.581E-04, 1.1167E-04"	13.69	18.33	92			age of intrusion		"13.66, 13.72% K2O"	
7224	1	19.2	0.5	biotite	conventional K-Ar	69. USGS(D)-MWC-79-74	"4.962E-04, 0.581E-04, 1.1167E-04"	8.2	2.282	67			age of volcanism	BIOTITE FLAKES EDGED WITH IRON OXIDES(?)	"8.17, 8.23% K2O"	
7224	2	18.6	0.4	sanidine	conventional K-Ar	69. USGS(D)-MWC-79-74	"4.962E-04, 0.581E-04, 1.1167E-04"	9.135	2.459	85			age of volcanism		"9.12, 9.15% K2O"	
7225	1	27	1.6	sanidine	conventional K-Ar	70. COL2-35-1A	"4.962E-04, 0.581E-04, 1.1167E-04"	4.656	1.826	32			age of volcanism	"-60+200 MESH, 10% ROCK FRAGMENTS"	"3.87, 3.86 K; 0.0071, 0.0075 PPM AR"	"OLMSTED AND OTHERS (1973, USGS PROF. PAPER 486-H) REPORTED AN AGE OF 26.2 M.Y. FOR THIS SANIDINE"
7226	1	25.4	2.2	hornblende	conventional K-Ar	71. PED-1-67	"4.962E-04, 0.581E-04, 1.1167E-04"	0.887	0.326	22			age of volcanism			"ANALYTICAL DATA FROM DAMON AND OTHERS (1968, P.44).  OLMSTED AND OTHERS (1973, USGS PROF. PAPER 486-H) REPORTED AN AGE OF 24.7 M.Y. FOR THIS HORNBLENDE."
7227	1	25.8	1.6	whole rock	conventional K-Ar	72. HC2-15-35B	"4.962E-04, 0.581E-04, 1.1167E-04"	1.84	0.686	17			age of volcanism			"OLMSTED AND OTHERS (1973, USGS PROF. PAPER 486-H) REPORTED AN AGE OF 25.1 M.Y. FOR THIS WHOLE-ROCK.  ANALYTICAL DATA FROM DAMON AND OTHERS (1970, P.41, SAMPLE PED-8-68)."
7228	1	26.8	0.9	biotite	conventional K-Ar	73. COL2-7-38A	"4.962E-04, 0.581E-04, 1.1167E-04"	7.08	2.752	3121			age of volcanism	"-40+100 MESH, LESS THAN 5% IMPURITIES"	"5.84%, 5.92% K; 0.0112, 0.0109 PPM AR"	"OLMSTED AND OTHERS (1973, USGS PROF. PAPER 486-H) REPORTED AN AGE OF 25.9 M.Y. FOR THIS SAMPLE.  TUFF UNDERLIES A 25.4 M.Y. OLD HORNBLENDE ANDESITE (MARVIN AND DOBSON, 1979, P. 11, ENTRY 71)."
7235	1	1350	30	biotite	conventional K-Ar	80. USGS(D)-SLOAN-2	"4.962E-04, 0.581E-04, 1.1167E-04"	7.72	222.9	99					"7.72, 7.72% K2O"	THE CARBONATITE BLOCKS IN THE DEVONIAN(?) DIATREME ARE APPARENTLY FROM THE PRECAMBRIAN BASEMENT
7236	1	36.3	0.9	biotite	conventional K-Ar	81. USGS(D)-A	"4.962E-04, 0.581E-04, 1.1167E-04"	8.81	4.655	94					"8.81, 8.81% K2O"	"THE RHYOLITIC ASH-FLOW IS OLIGOCENE IN AGE.  HOWEVER THE 6 M.Y. AGE DIFFERENCE BETWEEN THE K-AR AND FISSION-TRACK AGES IS NOT UNDERSTOOD.  THE K-AR AGE OF 36 M.Y. SUGGESTS THAT THIS ASH-FLOW MAY BE AN EARLY EXTRUSIVE PHASE FROM THE MOUNT SOPRIS IGNEOUS CENTER WHICH HAS BEEN DATED AT 34 M.Y. (MOUNT SOPRIS STOCK) (CUNNINGHAM AND OTHERS, 1977, USGS OPEN-FILE REPORT 77-573)."
7237	1	483	24	biotite	conventional K-Ar	82. USGS(W)-2-D-62	"4.962E-04, 0.581E-04, 1.1167E-04"	8.72	69.56	99						THIS IS A REDUCED AGE.  GNEISS PROBABLY FORMED ABOUT 1700 M.Y. AGO. IGNEOUS INTRUSIVE ACTIVITY IN THIS VICINITY ABOUT 65 M.Y. AGO CAUSED BIOTITE TO LOSE RADIOGENIC ARGON
7238	1	1150	30	biotite	conventional K-Ar	83. USGS(D)-91	"4.962E-04, 0.581E-04, 1.1167E-04"	6.17	143.6	99					"6.14, 6.20% K2O"	"GRANITE IS ABOUT 1450 M.Y. OLD (PETERMAN AND OTHERS, 1968).  THIS K-AR AGE MAY INDICATE A TIME OF UPLIFT AND COOLING."
7239	1	63	1.5	sericite	conventional K-Ar	84. USGS(D)-72-92	"4.962E-04, 0.581E-04, 1.1167E-04"	2.475	2.285	81				IMPURE SERICITE	"2.48, 2.47% K2O"	K-AR AGE PROBABLY DATES THE TIME OF ALTERATION; TIME OF EMPLACEMENT IS SOMEWHAT OLDER.
7240	1	42.4	1	biotite	conventional K-Ar	85. USGS(D)-D96	"4.962E-04, 0.581E-04, 1.1167E-04"	9.025	5.577	86				-40+100 MESH	"9.03, 9.02% K2O"	"FOUR PUBLISHED K-AR AGES FOR THE HUMBUG STOCK RANGE FROM 47 TO 35 M.Y. (MARVIN AND OTHERS, 1974, P. 14-15"
7241	1	41.5	1	biotite	conventional K-Ar	86. USGS(D)-K150	"4.962E-04, 0.581E-04, 1.1167E-04"	7.935	4.796	87				-60+100 MESH	"7.95, 7.92% K2O"	"FOUR PUBLISHED K-AR AGES FOR THE HUMBUG STOCK RANGE FROM 47 TO 35 M.Y. (MARVIN AND OTHERS, 1974, P. 14-15)"
7242	1	71.2	1.7	biotite	conventional K-Ar	87. USGS(D)-MG-4	"4.962E-04, 0.581E-04, 1.1167E-04"	6.935	7.251	82			age of intrusion		"6.93, 6.94% K2O"	"THIS AGE SUPERSEDES AGES LISTED BY MARVIN AND OTHERS (1974, P. 28, ENTRY 203)."
7243	1	69.9	1.7	biotite	conventional K-Ar	88. USGS(D)-HBD-4	"4.962E-04, 0.581E-04, 1.1167E-04"	4.98	5.11	83				BIOTITE SOMEWHAT CHLORITIZED	"4.96, 5.00% K2O"	"AGE SUPERSEDES AGES LISTED BY MARVIN AND OTHERS (1974, P. 28, ENTRY 203); AGE APPEARS SLIGHTLY TOO OLD AS DIKE CUTS GRANODIORITE WHICH IS 66.7 M.Y. OLD (MARVIN AND DOBSON, 1979, P. 13, ENTRY 89)"
7244	1	66.7	1.6	biotite	conventional K-Ar	89. USGS(D)-LG-15	"4.962E-04, 0.581E-04, 1.1167E-04"	7.425	7.268	86					"7.47, 7.38% K2O"	"THIS AGE SUPERSEDES AGES LISTED BY MARVIN AND OTHERS (1974, P. 28, ENTRY 203)"
7245	1	709	12	K feldspar	conventional K-Ar	90. USGS(D)-D2377F	"4.962E-04, 0.581E-04, 1.1167E-04"	12.84	160.6	99				"98-99% PURE, A FEW GRAINS SHOW GRID-TWINNING.  X-RAY SCANS INDICATE ORTHOCLASE AND PLAGIOCLASE."	"12.92, 12.76% K2O"	"K-AR AGE IS COMPOSITE AGE OF YOUNG AND OLD K-FELDSPAR--ADULARIA(?) AND PRECAMBRIAN HOSTROCK FELDSPAR.  YOUNG (1977, USGS OPEN-FILE 77-725) REPORTED AN AGE OF 700 M.Y. FOR THIS SAMPLE."
7246	1	175	3	K feldspar	conventional K-Ar	91. USGS(D)-D2378F	"4.962E-04, 0.581E-04, 1.1167E-04"	14.335	37.92	96				"98-99% PURE, A FEW GRAINS SHOW GRID-TWINNING.  X-RAY SCANS INDICATE ORTHOCLASE AND ADULARIA"	"14.33, 14.34% K2O"	"K-AR AGE IS COMPOSITE AGE OF YOUNG AND OLD K-FELDSPAR--ADULARIA FROM MINERALIZING SOLUTIONS AND PRECAMBRIAN HOSTROCK FELDSPAR.  YOUNG (1977, USGS OPEN-FILE 77-725) REPORTED AN AGE OF 175 M.Y. FOR THIS SAMPLE."
7247	1	1455	35	muscovite	conventional K-Ar	92. USGS(D)-SCH-74	"4.962E-04, 0.581E-04, 1.1167E-04"	9.45	304.9	99			minimum age of intrusion		"9.56, 9.34% K2O"	
7248	1	1415	35	muscovite	conventional K-Ar	93. USGS(D)-SCH-164	"4.962E-04, 0.581E-04, 1.1167E-04"	9.475	292.6	100			minimum age of intrusion		"9.43, 9.52% K2O"	AGE IS A MINIMUM AGE FOR THE PEGMATITES; THE SHEARING MAY HAVE CAUSED A LOSS OF RADIOGENIC ARGON
7251	1	74.3	1.8	zircon	conventional K-Ar	96. USGS(D)-MC-15-74	"4.962E-04, 0.581E-04, 1.1167E-04"	4.35	4.751	73				BIOTITE SOMEWHAT ALTERED	"4.34, 4.36% K2O"	A SPURIOUS AGE; PALEOCENE FLORA OCCUR A BIT LOWER IN THE SECTION
7252	1	56.5	1.4	biotite	conventional K-Ar	97. USGS(D)-MC-31-74	"4.962E-04, 0.581E-04, 1.1167E-04"	5.885	4.859	53			age of volcanism		"5.83, 5.94% K2O"	
7283	1	57.5	2	hornblende	conventional K-Ar	128. USGS(D)-WGJH-2	"4.962E-04, 0.581E-04, 1.1167E-04"	1.04	0.8749	89			age of intrusion		"1.02, 1.02, AND 1.07% K2O"	
7284	1	5190	940	plagioclase	conventional K-Ar	129. USGS(D)-WGJH-1	"4.962E-04, 0.581E-04, 1.1167E-04"	0.17	74.09	98					"0.16, 0.18% K2O"	SPURIOUS AGE--PLAGIOCLASE LOADED WITH EXCESS ARGON.  DIKE IS PROBABLY CRETACEOUS OR PALEOCENE IN AGE.
7285	1	10.2	0.4	whole rock	conventional K-Ar	130. USGS(D)-MW-48	"4.962E-04, 0.581E-04, 1.1167E-04"	0.79	0.1167	41			age of intrusion	-60+100 MESH		"MC INTYRE (1976) PUBLISHED THE AGE OF THIS SAMPLE AS 10.0 M.Y.  DATED DIKE IS AT LOCALITY ""H"" ON USGS MAP MF-745 (MC INTYRE, 1976) AND ALSO APPEARS ON FIG. 9 (ROSS, 1956) AS ""BIOTITE ANDESITE DIKE""."
7286	1	48.5	1.2	biotite	conventional K-Ar	131. USGS(D)-BL-128	"4.962E-04, 0.581E-04, 1.1167E-04"	7.755	5.488	78			age of volcanism		"7.77, 7.74% K2O"	THE AGE IS CONSISTENT WITH STRATIGRAPHIC RELATIONS AS PRESENTLY UNDERSTOOD FOR A SERIES OF COMPLEXLY FAULTED FLOWS.
7287	1	42.8	1	sanidine	conventional K-Ar	132. USGS(D)-B-64	"4.962E-04, 0.581E-04, 1.1167E-04"	8.17	5.097	83					"8.18, 8.16% K2O"	THIS AGE DOES NOT FIT THE MAPPED STRATIGRAPHIC RELATIONS; THE AGE IS APPARENTLY TOO YOUNG
7288	1	160	4	hornblende	conventional K-Ar	133. USGS(D)-T118A	"4.962E-04, 0.581E-04, 1.1167E-04"	0.445	1.074	65					"0.444, 0.446% K2O"	"AGE IS SPURIOUS; STOCK IS PROBABLY ABOUT 85 M.Y. OLD (SEE MARVIN AND DOBSON, 1979, P. 17, ENTRY 135)"
7289	1	49.2	1.2	biotite	conventional K-Ar	134. USGS(D)-C-226	"4.962E-04, 0.581E-04, 1.1167E-04"	7.535	5.408	80			age of volcanism		"7.50, 7.57% K2O"	AGE IS CONSISTANT WITH STRATIGRAPHIC RELATIONS AS PRESENTLY UNDERSTOOD FOR A SERIES OF COMPLEXLY FAULTED FLOWS
7290	1	85.6	2.1	biotite	conventional K-Ar	135. USGS(D)-876A	"4.962E-04, 0.581E-04, 1.1167E-04"	7.3	9.212	88			age of intrusion		"7.31, 7.29% K2O; X-RAY FLUORESCENCE OF POWDERED WHOLE-ROCK GAVE 89 PPM RB AND 874 PPM SR, RB/SR=0.1"	
7291	1	92.2	2.2	biotite	conventional K-Ar	136. USGS(D)-74-T-ID	"4.962E-04, 0.581E-04, 1.1167E-04"	7.75	10.55	34			age of intrusion		"7.74, 7.76% K2O"	
7292	1	440	14	muscovite	conventional K-Ar	137. USGS(D-M)-CM-5	"4.962E-04, 0.581E-04, 1.1167E-04"	10.34	74.21	95			age of intrusion		"10.37, 10.31% K2O"	CADY (1969) PUBLISHED AN AGE OF 433 M.Y. FOR THIS MUSCOVITE
7306	1	58	3	muscovite	conventional K-Ar	151. USGS(W)-CPR369	"4.962E-04, 0.581E-04, 1.1167E-04"	10.46	8.83	86			minimum age of intrusion			
7307	1	51.1	1.2	whole rock	conventional K-Ar	152. USGS(D)-KW-39-74	"4.962E-04, 0.581E-04, 1.1167E-04"	2.645	1.973	90			age of intrusion		"2.64, 2.65% K2O"	
7308	1	1720	50	muscovite	conventional K-Ar	153. USGS(D)-63R6	"4.962E-04, 0.581E-04, 1.1167E-04"	10.32	426	99			age of intrusion	LARGE MUSCOVITE SHEETS CUT UP WITH SCISSORS		
7309	1	1740	90	hornblende	conventional K-Ar	154. USGS(D)-63R8	"4.962E-04, 0.581E-04, 1.1167E-04"	0.96	40.5	99			minimum age of metamorphic crystallization			K-AR HORNBLENDE AGE IS MINIMUM AGE OF GNEISS.
7310	1	826	41	pyroxenes	conventional K-Ar	155. USGS(D)-63R4	"4.962E-04, 0.581E-04, 1.1167E-04"	0.38	5.73	89			age of intrusion	PYROXENE PLUS MINOR BIOTITE		"SILL IS PART OF THE WIDE-SPREAD, LATE PRECAMBRIAN OR EARLY PRECAMBRIAN-Z, MAFIC DIKES AND SILLS THAT HAVE BEEN MAPPED IN THE BELT SUPERGROUP"
7311	1	744	37	pyroxenes	conventional K-Ar	156. USGS(D)-63R5	"4.962E-04, 0.581E-04, 1.1167E-04"	0.42	5.57	92			age of intrusion	PYROXENE PLUS MINOR BIOTITE		"SILL IS PART OF THE WIDE SPREAD, EARLY PRECAMBRAIN-Z MAFIC DIKES AND SILLS THAT HAVE BEEN MAPPED IN THE BELT SUPERGROUP"
7312	1	82.4	4.1	amphiboles	conventional K-Ar	157. A-2929	"4.962E-04, 0.581E-04, 1.1167E-04"	0.834	1.012	19			age of intrusion	-40+60 MESH	"0.649, 0.735% K; 0.004252, 0.003833 PPM AR-40"	
7313	1	81.8	3.1	biotite	conventional K-Ar	158. B-2930	"4.962E-04, 0.581E-04, 1.1167E-04"	6.426	7.739	58			age of intrusion	-80+200 MESH	"5.327, 5.342% K; 0.03128, 0.03057 PPM AR-40"	
7319	1	73.1	3.1	biotite	conventional K-Ar	164. USGS(D)-T-158	"4.962E-04, 0.581E-04, 1.1167E-04"	7.77	8.341	88						AGE MAY BE A REDUCED AGE; PLUTON MAY HAVE BEEN EMPLACED DURING THE JURASSIC
7321	1	30.3	2.6	biotite	conventional K-Ar	166. USGS(D+W)-T-1043	"4.962E-04, 0.581E-04, 1.1167E-04"	8.91	3.916	72			age of intrusion			
7322	1	29	1	biotite	conventional K-Ar	167. USGS(D+W)-63T1029	"4.962E-04, 0.581E-04, 1.1167E-04"	8.37	3.538	74						"THIS K-AR AGE IS A REDUCED AGE, CAUSED BY INTRUSION OF TERTIARY GRANODIORITE (SEE MARVIN AND DOBSON, 1979, P. 21 ENTRY 166)"
7323	1	40	2	biotite	conventional K-Ar	168. USGS(W)-JG-GM-1	"4.962E-04, 0.581E-04, 1.1167E-04"	7.36	4.303	85			age of intrusion			
7323	2	40	2	biotite	conventional K-Ar	168. USGS(W)-JG-GM-1	"4.962E-04, 0.581E-04, 1.1167E-04"	7.36	4.328	89			age of intrusion			
7325	1	32	1	sanidine	conventional K-Ar	170. USGS(D)-SR-476	"4.962E-04, 0.581E-04, 1.1167E-04"	7.075	3.285	90			age of volcanism		"7.09, 7.06% K2O"	SMITH AND KETNER(1976) REPORTED AN AGE OF 31.2 M.Y. FOR THIS SANIDINE
7326	1	32.6	1.1	whole rock	conventional K-Ar	171. USGS(W)-SR-425	"4.962E-04, 0.581E-04, 1.1167E-04"	2.475	1.174	86			age of volcanism		"2.48, 2.47% K2O"	SMITH AND KETNER(1976) REPORTED AN AGE OF 31.9 M.Y. FOR THIS BASALT SAMPLE
7327	1	38.5	1.3	biotite	conventional K-Ar	172. USGS(D)-SR-377	"4.962E-04, 0.581E-04, 1.1167E-04"	6.6	3.698	85			age of volcanism		"6.61, 6.59% K2O"	SMITH AND KETNER(1976) REPORTED AN AGE OF 37.6 M.Y. FOR THIS BIOTITE
7328	1	37.3	1.9	biotite	conventional K-Ar	173. USGS(W)-667	"4.962E-04, 0.581E-04, 1.1167E-04"	8.58	4.654	83			age of intrusion			
7329	1	36.3	1.1	sanidine	conventional K-Ar	174. USGS(D)-SR-442	"4.962E-04, 0.581E-04, 1.1167E-04"	11.76	6.21	92			age of intrusion			SMITH AND KETNER(1976) REPORTED AN AGE OF 35.4 M.Y. FOR THIS SANIDINE
7329	2	37.8	1.1	biotite	conventional K-Ar	174. USGS(D)-SR-442	"4.962E-04, 0.581E-04, 1.1167E-04"	8.79	4.83	82			age of intrusion			SMITH AND KETNER(1976) REPORTED AN AGE OF 36.8 M.Y. FOR THIS BIOTITE
7334	1	69.5	1.7	muscovite	conventional K-Ar	179. USGS(D)-74FP-890B	"4.962E-04, 0.581E-04, 1.1167E-04"	9.92	10.12	87					"10.10, 10.08, 9.86, 9.61% K2O"	LATE CRETACEOUS MINERALIZATION
7335	1	79.2	1.6	muscovite	conventional K-Ar	180. USGS(D)-DRS-122-67	"4.962E-04, 0.581E-04, 1.1167E-04"	10.905	12.71	88					"10.89, 10.92% K2O"	TIME OF MINERALIZATION. SHAWE(1977) REPORTED AN AGE OF 79.2 M.Y. FOR THIS MUSCOVITE
7353	1	241	12	biotite	conventional K-Ar	198. USGS(W)-BT-30	"4.962E-04, 0.581E-04, 1.1167E-04"	8.69	32.28	95			initial age disturbed by later metamorphism			SOUTHWICK(1964) REPORTED AN AGE OF 236 M.Y. FOR THIS BIOTITE. MICROCLINE HAD AN UNSUITABLE RB/SR RATIO FOR DATING PURPOSES.
7363	1	38.2	1.5	biotite	conventional K-Ar	208. USGS(D)-JIC-50	"4.962E-04, 0.581E-04, 1.1167E-04"	7.105	3.952	80			age of intrusion		"7.13, 7.08% K2O"	SEGERSTROM AND RYBERG (1974) REPORTED AN AGE OF 37.3 M.Y. FOR THIS BIOTITE
7364	1	26.8	0.6	sanidine	conventional K-Ar	209. USGS(D)-SA-5	"4.962E-04, 0.581E-04, 1.1167E-04"	7.795	3.034	84			age of volcanism		"7.84, 7.75% K2O"	RATTE AND GASKILL (1975) REPORTED AN AGE OF 26.2 M.Y. FOR THIS SANIDINE
7364	2	28.2	0.7	biotite	conventional K-Ar	209. USGS(D)-SA-5	"4.962E-04, 0.581E-04, 1.1167E-04"	6.66	2.728	67			age of volcanism		"6.70, 6.62% K2O"	RATTE AND GASKILL (1975) REPORTED AN AGE OF 27.6 M.Y. FOR THIS BIOTITE
7366	1	31.7	0.8	biotite	conventional K-Ar	211. USGS(D)-SA-3	"4.962E-04, 0.581E-04, 1.1167E-04"	7.755	3.575	60			age of volcanism		"7.72, 7.79% K2O"	RATTE AND GASKILL (1975) REPORTED AN AGE OF 31.0 M.Y. FOR THIS BIOTITE
7367	1	33.5	0.8	biotite	conventional K-Ar	212. USGS(D)-SA-4	"4.962E-04, 0.581E-04, 1.1167E-04"	8.13	3.956	74			age of volcanism		"8.15, 8.11% K2O"	RATTE AND GASKILL (1975) REPORTED AN AGE OF 32.7 M.Y. FOR THIS BIOTITE
7368	1	30.4	0.7	K feldspar	conventional K-Ar	213. USGS(D)-SA-2	"4.962E-04, 0.581E-04, 1.1167E-04"	8.635	3.814	74			age of volcanism		"8.66, 8.61% K2O"	RATTE AND GASKILL (1975) REPORTED AN AGE OF 29.7 M.Y. FOR THIS K-FELDSPAR
7369	1	30	0.7	sanidine	conventional K-Ar	214. USGS(D)-SA-1	"4.962E-04, 0.581E-04, 1.1167E-04"	9.55	4.157	92			age of volcanism		"9.52, 9.58% K2O"	RATTE AND GASKILL (1975) PUBLISHED AN AGE OF 29.3 M.Y. FOR THIS SANIDINE
7369	2	30.3	0.7	biotite	conventional K-Ar	214. USGS(D)-SA-1	"4.962E-04, 0.581E-04, 1.1167E-04"	8.73	3.838	84			age of volcanism		"8.71, 8.75% K2O"	RATTE AND GASKILL (1975) PUBLISHED AN AGE OF 29.6 M.Y. FOR THIS BIOTITE
7370	1	34.8	0.8	whole rock	conventional K-Ar	215. USGS(D)-J-1-71	"4.962E-04, 0.581E-04, 1.1167E-04"	5.465	2.76	65			age of intrusion		"5.50, 5.43% K2O"	
7371	1	915	33	biotite	conventional K-Ar	216. USGS(D)-AZ-9	"4.962E-04, 0.581E-04, 1.1167E-04"	8.01	137.5	98			minimum age of intrusion		"8.00, 8.02% K2O"	
7372	1	893	32	biotite	conventional K-Ar	217. USGS(D)-AZ-6	"4.962E-04, 0.581E-04, 1.1167E-04"	7.07	117.6	97			minimum age of intrusion		"7.08, 7.06% K2O"	
7377	1	37.1	3.6	plagioclase	conventional K-Ar	222. USGS(D)-SR-63-45	"4.962E-04, 0.581E-04, 1.1167E-04"	0.23	0.124	41			age of volcanism		"0.23, 0.23% K2O"	TATSUMOTO AND SNAVELY(1969) PUBLISHED AN AGE OF 36.6 M.Y. FOR THIS PLAGIOCLASE
7378	1	33.2	1	biotite	conventional K-Ar	223. USGS(D)-SR-59-9	"4.962E-04, 0.581E-04, 1.1167E-04"	5.84	2.82	81			age of intrusion		"5.81, 5.89, 5.85, AND 5.82% K2O"	TATSUMOTO AND SNAVELY(1969) PUBLISHED AN AGE OF 32.6 M.Y. FOR THIS BIOTITE
7380	1	34.6	1.2	hornblende	conventional K-Ar	225. USGS(D)-SR-59-9	"4.962E-04, 0.581E-04, 1.1167E-04"	1	0.5029	59			age of intrusion			TATSUMOTO AND SNAVELY(1969) PUBLISHED AN AGE OF 33.6 M.Y. FOR THIS HORNBLENDE
7381	1	146	7	biotite	conventional K-Ar	226. USGS(W)-CEB-61-75	"4.962E-04, 0.581E-04, 1.1167E-04"	8.02	17.6	95			age of intrusion			THAYER AND BROWN (1964) REPORTED AN AGE OF 145 M.Y. FOR THIS BIOTITE
7382	1	121	6	biotite	conventional K-Ar	227. USGS(W)-CEB-61-76	"4.962E-04, 0.581E-04, 1.1167E-04"	8.78	15.8	91			age of intrusion			MICA DIORITE INTRUDES TRIASSIC AND JURASSIC SEDIMENTARY ROCKS.  THAYER AND BROWN (1964) REPORTED AN AGE OF 120 M.Y. FOR THIS BIOTITE.
7387	1	482	24	hornblende	conventional K-Ar	232. USGS(W)-DD491(350)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.33	2.627	79						AGE MAY INDICATE TIME OF THE LAST METAMORPHIC EVENT IN THIS REGION. KINKEL(1967) PUBLISHED AN AGE OF 478 M.Y. FOR THIS HORNBLENDE.
7388	1	1047	50	hornblende	conventional K-Ar	233. USGS(W+D)-CALLOWAY NO. 1(349)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.24	4.904	93						SPURIOUS AGE; KINKEL(1967) PUBLISHED AN AGE OF 1045 M.Y. FOR THIS HORNBLENDE
7388	2	995	34	hornblende	conventional K-Ar	233. USGS(W+D)-CALLOWAY NO. 1(349)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.28	5.354	93					REPLICATE POTASSIUM DETERMINATIONS	"SPURIOUS AGE.  AR-40/AR-39 AGES, AS DETERMINED BY R.D. DALLMEYER, UNIV. OF GEORGIA, RANGED FROM 742-2625 M.Y. --COMPILER."
7389	1	398	20	hornblende	conventional K-Ar	234. USGS(W)-BOYD NO. 1(348)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.5	3.203	91						"THIS AGE IS A MINIMUM AGE FOR THE VEIN.  KINKEL(1967) PUBLISHED AN AGE OF 387 M.Y. FOR THIS HORNBLENDE.  THE ARGON RELEASE PATTERN GIVEN BY THIS HORNBLENDE UNDER CONDITIONS OF INCREMENTAL HEATING SUGGESTS THE PRESENCE OF EXCESS ARGON ACCORDING TO R.D. DALLMEYER, UNIV. OF GEORGIA --COMPILER."
7391	1	39.1	2	biotite	conventional K-Ar	236. USGS(D+W)-26-HM-64(600)	"4.962E-04, 0.581E-04, 1.1167E-04"	8.93	5.079	47			minimum age of intrusion			
7392	1	36.4	1.8	hornblende	conventional K-Ar	237. USGS(D)-21-HM-64(601)	"4.962E-04, 0.581E-04, 1.1167E-04"	0.95	0.5029	66			age of volcanism			MINIMUM AGE OF UPLIFT AND EROSION OF MONZONITE PORPHYRY OF WEST TINTIC
7393	1	34.6	1.7	biotite	conventional K-Ar	238. USGS(D+W)-11-HM-64(602)	"4.962E-04, 0.581E-04, 1.1167E-04"	9	4.529	55			age of volcanism			
7395	1	21.4	0.6	biotite	conventional K-Ar	240. USGS(M)-61-282	"4.962E-04, 0.581E-04, 1.1167E-04"	8.15	2.527	75						THIS AGE APPEARS TO BE A REDUCED AGE AND MAY INDICATE THE TIME OF HYDROTHERMAL ACTIVITY.  MARVIN(1968) REPORTED AN AGE OF 20.8 M.Y. FOR THIS BIOTITE.
7395	2	27.4	0.8	hornblende	conventional K-Ar	240. USGS(M)-61-282	"4.962E-04, 0.581E-04, 1.1167E-04"	0.35	0.1391	34			age of intrusion			MARVIN(1968) REPORTED AN AGE OF 27.0 M.Y. FOR THIS HORNBLENDE
7396	1	28.8	0.9	hornblende	conventional K-Ar	241. USGS(M)-61-283	"4.962E-04, 0.581E-04, 1.1167E-04"	0.36	0.1504	34			age of intrusion			MARVIN(1968) PUBLISHED AN AGE OF 28.4 M.Y. FOR THIS HORNBLENDE
7397	1	21.5	0.6	biotite	conventional K-Ar	242. USGS(M)-61-285	"4.962E-04, 0.581E-04, 1.1167E-04"	8.77	2.727	78						THIS AGE MAY INDICATE THE TIME OF HYDROTHERMAL ACTIVITY.  MARVIN(1968) PUBLISHED AN AGE OF 20.9 M.Y. FOR THIS BIOTITE.
7398	1	28.7	0.9	biotite	conventional K-Ar	243. USGS(M)-63-17	"4.962E-04, 0.581E-04, 1.1167E-04"	8.88	3.703	86			age of intrusion			MARVIN(1968) PUBLISHED AN AGE OF 28.0 M.Y. FOR THIS BIOTITE
7399	1	22.5	0.7	sanidine	conventional K-Ar	244. USGS(M)-61-284	"4.962E-04, 0.581E-04, 1.1167E-04"	9.06	2.952	95			minimum age of volcanism			MARVIN(1968) PUBLISHED AN AGE OF 21.9 M.Y. FOR THIS SANIDINE
7400	1	23.1	0.7	biotite	conventional K-Ar	245. USGS(M)-63-16	"4.962E-04, 0.581E-04, 1.1167E-04"	8.76	2.927	80			age of volcanism		"8.73, 8.79% K2O"	MARVIN(1968) PUBLISHED AN AGE OF 22.4 M.Y. FOR THIS BIOTITE
7401	1	29.8	0.9	biotite	conventional K-Ar	246. USGS(M)-61-85	"4.962E-04, 0.581E-04, 1.1167E-04"	8.66	3.753	79			age of volcanism			MARVIN(1968) REPORTED AN AGE OF 29.0 M.Y. FOR THIS BIOTITE
7401	2	29.9	0.9	hornblende	conventional K-Ar	246. USGS(M)-61-85	"4.962E-04, 0.581E-04, 1.1167E-04"	0.91	0.3953	66			age of volcanism			MARVIN(1968) REPORTED AN AGE OF 29.2 M.Y. FOR THIS HORNBLENDE
7404	1	155	5	biotite	conventional K-Ar	249. USGS(D)-D1033B AND H	"4.962E-04, 0.581E-04, 1.1167E-04"	6.915	16.14	98			age of intrusion		"6.88, 6.95% K2O"	MARVIN(1968) REPORTED AN AGE OF 152 M.Y. FOR THIS BIOTITE
7404	2	155	10	hornblende	conventional K-Ar	249. USGS(D)-D1033B AND H	"4.962E-04, 0.581E-04, 1.1167E-04"	1.675	3.9	96			age of intrusion			MARVIN(1968) REPORTED AN AGE OF 151 M.Y. FOR THIS HORNBLENDE
7405	1	554	16	hornblende	conventional K-Ar	250. USGS(M)-SJ-13A	"4.962E-04, 0.581E-04, 1.1167E-04"	0.3435	3.207	78			age not evaluated		"0.346, 0.341% K2O"	
7411	1	2210	110	biotite	conventional K-Ar	256. USGS(W)-337	"4.962E-04, 0.581E-04, 1.1167E-04"	9.52	593	100						THIS AGE IS LOW; BIOTITE APPEARS TO HAVE LOST RADIOGENIC ARGON. BAYLEY AND OTHERS(1973) PUBLISHED THIS AGE.  NAYLOR AND OTHERS(1970) DETERMINED AN AGE FOR THE LOUIS LAKE BATHOLITH OF 2600 M.Y.
7411	2	2630	130	hornblende	conventional K-Ar	256. USGS(W)-337	"4.962E-04, 0.581E-04, 1.1167E-04"	0.93	79.56	100			age of intrusion			BAYLEY AND OTHERS(1973) REPORTED AN AGE OF 2640 M.Y. FOR THIS HORNBLENDE
7412	1	1430	70	biotite	conventional K-Ar	257. USGS(W)-338	"4.962E-04, 0.581E-04, 1.1167E-04"	5.12	160.4	99						THIS IS A REDUCED AGE AND MAY DATE A TIME OF FAULTING.  BAYLEY AND OTHERS(1973) PUBLISHED AN AGE OF 1420 M.Y. FOR THIS BIOTITE AND A PB-ALPHA AGE OF 1240 M.Y. (ZIRCON) WHICH IS SPURIOUS.
7429	1	0.65	0.2	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.46	0.023	2			age of volcanism		"K=2.04, 2.02%; 40AR-RAD=0.0217, 0.0242 E-10 MOL/GM"	
7430	1	2.02	0.3	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.6	0.0758	9			age of volcanism		K=2.16%	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 16, ENTRY 108."
7431	1	1.3	0.2	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.05	0.0569	16			age of volcanism		K=2.53%	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, L974, P. 16, ENTRY 107."
7432	1	7.83	0.4	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.86	0.21	44			age of volcanism		K=1.5%	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 6, ENTRY 24."
7433	1	8.91	0.4	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.143	0.147	49			age of volcanism		K=0.949%	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 6, ENTRY 22."
7434	1	9.02	0.4	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.25	0.293	51			age of volcanism		K=1.87%	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 6, ENTRY 25."
7435	1	10.39	0.5	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.3	0.195	26			age of volcanism		K=1.08%	
7436	1	11.48	1	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.16	0.358	7			age of volcanism		K=1.80%	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 6, ENTRY 26."
7437	1	10.6	0.5	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.57	0.3932				age of volcanism		"K=2.17, 2.11%"	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 5, ENTRY 11."
7438	1	9.86	0.5	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.15	0.3062				age of volcanism		"K=1.78, 1.79%; 40AR-RAD=0.3217, 0.2906 E-10 MOL/GM"	"THIS AGE REPORTED BY MARVIN AND OTHERS, 1974, P. 5, ENTRY 12."
7439	1	12.78	0.5	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.645	0.3038				age of volcanism		"K=1.35, 1.38%; 40AR-RAD=0.3089, 0.2987 E-10 MOL/GM"	"MARVIN AND OTHER (1974, P. 5, ENTRY 13) REPORTED AN AGE OF 12.4 M.Y. FOR THIS SAMPLE."
7440	1	13.39	0.5	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.17	0.6135	8455			age of volcanism		"K=2.58, 2.69%; 40AR-RAD=0.606, 0.621 E-10 MOL/GM"	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 5, ENTRY 14."
7441	1	13.64	0.5	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	2.75	0.542	40			age of volcanism		K=2.29%	
7442	1	20.84	0.8	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.645	0.4965	2625			age not evaluated		"K=1.350, 1.375%, 40AR-RAD=0.477, 0.516 E-10 MOL/GM"	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 6, ENTRY 21."
7443	1	20.3	0.8	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.944	0.5715	4347			age not evaluated		"K=1.612, 1.615%; 40AR-RAD=0.560, 0.583 E-10 MOL/GM"	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 6, ENTRY 20."
7444	1	20.9	0.8	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	3.27	0.9897	4447			age not evaluated		"K=2.74, 2.70%; 40AR-RAD=1.006, 0.9735 E-10 MOL/GM"	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 6, ENTRY 19."
7445	1	19.04	0.8	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1	0.2755	39			age not evaluated		"K=0.832, 0.828%"	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 6, ENTRY 18."
7446	1	22.42	1	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.013	0.329	3534			age not evaluated		"K=0.859, 0.823%; 40AR-RAD=0.344, 0.314 E-10 MOL/GM"	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 5 ENTRY 17."
7447	1	21.68	1	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.6	0.5024	53			age not evaluated		"K=1.35, 1.31%"	"THIS AGE HAS BEEN REPORTED BY MARVIN AND OTHERS, 1974, P. 5, ENTRY 16."
7448	1	22.27	1	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.46	0.4711	58			age not evaluated		"K=1.18, 1.24%"	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 5, ENTRY 15"
7449	1	22.97	1	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04*"	1.025	0.3412	47			age of volcanism		"K=0.857, 0.845%"	"THIS AGE ALSO REPORTED BY MARVIN AND OTHERS, 1974, P. 5, ENTRY 10."
7450	1	23.2	1	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	2.82		21			age of volcanism		"K=2.37, 2.311%"	
7451	1	22.1	1	whole rock	conventional K-Ar	(NOT GIVEN)	"4.72E-04, 0.585E-04, 1.19E-04"	1.1641		46			age of volcanism		"K=0.9674, 0.9648%"	
7452	1	353	5	whole rock	conventional K-Ar	8 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.35	18.76	88				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE.
7453	1	420	4	whole rock	conventional K-Ar	9 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	6.16	41.82	27				-40 +80 MESH SIZE	LOW MEASUREMENT OF RADIOGENIC ARGON DUE TO LEAK IN GLASS SYSTEM	AGE PROBABLY A COOLING AGE.
7454	1	421	5	whole rock	conventional K-Ar	10 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.65	24.92	96				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE.
7455	1	379	5	whole rock	conventional K-Ar	21 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	5.24	31.75	98				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7456	1	431	3	whole rock	conventional K-Ar	22 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	4.31	30.18	98				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE.
7457	1	491	5	whole rock	conventional K-Ar	23 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.08	25.01	97			age of metamorphic crystallization	-40 +80 MESH SIZE		MINIMUM AGE OF F-1 FOLDING
7458	1	438	4	whole rock	conventional K-Ar	24 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.36	23.98	97				-40 +80 MESH SIZE		PROBABLY A COOLING AGE
7459	1	368	4	whole rock	conventional K-Ar	25 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	4.18	24.52	96				-40 +80 MESH SIZE	(ANALYTICAL DATA OF THIS SAMPLE WAS REVERSED WITH SAMPLE NO. 27 IN THE THESIS--COMPILER)	PROBABLY A COOLING AGE.
7460	1	481	4	whole rock	conventional K-Ar	26 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.22	25.49	98			age of metamorphic crystallization	-40 +80 MESH SIZE		MINIMUM AGE OF F-1 FOLDING
7461	1	393	3	whole rock	conventional K-Ar	27 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.12	19.69	96				-40 +80 MESH SIZE	(ANALYTICAL DATA OF THIS SAMPLE WAS REVERSED WITH SAMPLE NO. 25 IN THE THESIS--COMPLIER	PROBABLY A COOLING AGE
7462	1	483	5	whole rock	conventional K-Ar	28 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	2.99	23.81	94			age of metamorphic crystallization	-40 +80 MESH SIZE		MINIMUM AGE OF F-1 FOLDING
7463	1	275	6	muscovite	conventional K-Ar	32 M	"4.962E-04, 0.581E-04, 1.1167E-04"	3.65	15.59	90				-40 +80 MESH SIZE		PROBABLY A COOLING AGE
7464	1	351	4	whole rock	conventional K-Ar	33 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	6.07	33.83	98				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7465	1	369	6	whole rock	conventional K-Ar	34 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.22	18.97	95				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7466	1	393	3	whole rock	conventional K-Ar	35 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.58	22.6	97				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7467	1	388	3	whole rock	conventional K-Ar	36 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	5.11	31.77	97				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7468	1	415	6	whole rock	conventional K-Ar	37 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	2.6	17.46	94				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7469	1	500	5	whole rock	conventional K-Ar	38 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	4.07	33.76	98				-40 +80 MESH SIZE		AGE TOO OLD
7470	1	334	4	biotite	conventional K-Ar	39 B	"4.962E-04, 0.581E-04, 1.1167E-04"	6.87	36.25	97				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7471	1	327	3	biotite	conventional K-Ar	40 B	"4.962E-04, 0.581E-04, 1.1167E-04"	9.28	47.79	98				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7472	1	411	4	whole rock	conventional K-Ar	41 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.82	25.34	97				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7473	1	415	8	whole rock	conventional K-Ar	42 WR	"4.962E-04, 0.581E-04, 1.1167E-04"	3.34	22.38	96				-40 +80 MESH SIZE		AGE PROBABLY A COOLING AGE
7474	1	45.94	0.9	biotite	conventional K-Ar	RLM-2-70	"4.76E-04, 0.589E-04, 1.18E-04*"	7.98	5.346	90			age of volcanism		K=6.63%	
7475	1	44.7	1	biotite	conventional K-Ar	RLM-7-70	"4.76E-04, 0.589E-04, 1.18E-04*"	8.61	5.61	70					K=7.15%	AGE IS TOO YOUNG
7476	1	45.77	0.9	biotite	conventional K-Ar	RLM-2-69	"4.76E-04, 0.589E-04, 1.18E-04*"	8.13	5.426	86			age of volcanism		K=6.75%	
7477	1	42.88	1.3	biotite	conventional K-Ar	RLM-1-69	"4.76E-04, 0.589E-04, 1.18E-04*"	8.56	5.348	56					K=7.11%	AGE IS TOO YOUNG.
7478	1	42.66	1	biotite	conventional K-Ar	RLM-8-70	"4.76E-04, 0.589E-04, 1.18E-04*"	7.64	4.748	80			age of volcanism		K=6.32%	
7479	1	37.94	1.1	biotite	conventional K-Ar	RLM-11-71	"4.76E-04, 0.589E-04, 1.18E-04*"	6.82	3.765	38					K=5.66%	AGE IS TOO YOUNG
7479	2	35.72	0.9	biotite	conventional K-Ar	RLM-11-71	"4.76E-04, 0.589E-04, 1.18E-04*"	6.82	3.542	44					K=5.66%	AGE IS TOO YOUNG
7480	1	24.62	0.8	biotite	conventional K-Ar	RLM-5-71	"4.76E-04, 0.589E-04, 1.18E-04*"	7.13	2.545	37					K=5.92%	AGE IS TOO YOUNG
7481	1	46.86	0.7	biotite	conventional K-Ar	RLM-6-71	"4.76E-04, 0.589E-04, 1.18E-04*"	8.44	5.768	78					K=7.00%	AGE IS TOO OLD
7481	2	47.02	0.7	biotite	conventional K-Ar	RLM-6-71	"4.76E-04, 0.589E-04, 1.18E-04*"	8.44	5.789	80					K=7.00%	AGE IS TOO OLD.
7482	1	50.28	1.1	biotite	conventional K-Ar	RLM-1-70	"4.76E-04, 0.589E-04, 1.18E-04*"	9	6.607	82			age of volcanism		K=7.47%	
7483	1	49.93	1.2	biotite	conventional K-Ar	RLM-4-70	"4.76E-04, 0.589E-04, 1.18E-04*"	8.5	6.195	83			age of volcanism		K=7.06%	
7484	1	47.95	1.2	biotite	conventional K-Ar	RLM-5-70	"4.76E-04, 0.589E-04, 1.18E-04*"	8.33	5.827	79			age of volcanism		K=6.92%	47.2 +-1.2 M.Y. IS BEST ESTIMATE OF THE AGE OF THE TUFF
7484	2	48.61	1.1	biotite	conventional K-Ar	RLM-5-70	"4.76E-04, 0.589E-04, 1.18E-04*"	8.33	5.909	82			age of volcanism		K=6.92%	
7484	3	47.21	2	biotite	conventional K-Ar	RLM-5-70	"4.76E-04, 0.589E-04, 1.18E-04*"	8.33	5.737	72			minimum age of volcanism		K=6.92%	
7485	1	38.27	0.9	biotite	conventional K-Ar	RLM-9-71	"4.76E-04, 0.589E-04, 1.18E-04*"	7.91	4.405	49					K=6.57%	AGE IS TOO YOUNG
7486	1	74.22	2	biotite	conventional K-Ar	RLM-10-71	"4.76E-04, 0.589E-04, 1.18E-04*"	7.56	8.247	42					K=6.28%	AGE IS MUCH TOO OLD.
7487	1	35.3	2.1	biotite	conventional K-Ar	RLM-6-70	"4.76E-04, 0.589E-04, 1.18E-04*"	6.89	3.536	30					K=5.72%	AGE IS TOO YOUNG
7487	2	38.64	2.5	biotite	conventional K-Ar	RLM-6-70	"4.76E-04, 0.589E-04, 1.18E-04*"	6.89	3.874	52					K=5.72%	AGE IS TOO YOUNG
7488	1	46.63	0.7	biotite	conventional K-Ar	RLM-1-71	"4.76E-04, 0.589E-04, 1.18E-04*"	8.32	5.658	80			age of volcanism		K=6.91%	
7489	1	49.51	1	biotite	conventional K-Ar	RLM-2-71	"4.76E-04, 0.589E-04, 1.18E-04*"	7.92	5.723	58					K=6.57%	AGE IS TOO OLD.
7490	1	57.04	1	biotite	conventional K-Ar	RLM-8-71	"4.76E-04, 0.589E-04, 1.18E-04*"	7.55	6.299	67					K=6.27%	AGE IS TOO OLD
7491	1	45.57	0.9	biotite	conventional K-Ar	RLM-9-70	"4.76E-04, 0.589E-04, 1.18E-04*"	7.95	5.282	86					K=6.60%	AGE IS TOO OLD
7491	2	46.56	0.9	biotite	conventional K-Ar	RLM-9-70	"4.76E-04, 0.589E-04, 1.18E-04*"	7.95	5.399	87					K=6.60%	AGE IS TOO OLD
7492	1	156.58	2.3	biotite	conventional K-Ar	RLM-3-71	"4.76E-04, 0.589E-04, 1.18E-04*"	8.37	19.711	97					K=6.95%	SPURIOUS AGE
7492	2	155.71	2.3	biotite	conventional K-Ar	RLM-3-71	"4.76E-04, 0.589E-04, 1.18E-04*"	8.37	19.597	96					K=6.95%	SPURIOUS AGE
7493	1	100.73	2.2	biotite	conventional K-Ar	RLM-3-70	"4.76E-04, 0.589E-04, 1.18E-04*"	8.26	12.32	84					K=6.86%	SPURIOUS AGE
7493	2	103.79	2.3	biotite	conventional K-Ar	RLM-3-70	"4.76E-04, 0.589E-04, 1.18E-04*"	8.26	12.705	86					K=6.86%	SPURIOUS AGE
7494	1	27.32	2.7	biotite	conventional K-Ar	RLM-7-71	"4.76E-04, 0.589E-04, 1.18E-04*"	5.62	2.227	14					K=4.67%	AGE IS TOO YOUNG
7495	1	170		biotite	conventional K-Ar	KA 579	"4.72E-04, 0.584E-04, 1.19E-04"	6.599		70			age of intrusion		REPLICATE K ANALYSES	
7496	1	77.9		biotite	conventional K-Ar	KA 804	"4.72E-04, 0.584E-04, 1.19E-04"	6.824		60			age of intrusion		REPLICATE K ANALYSES	
7497	1	84.7		biotite	conventional K-Ar	KA 820	"4.72E-04, 0.584E-04, 1.19E-04"	8.03		86			age of intrusion		REPLICATE K ANALYSES	
7498	1	130		biotite	conventional K-Ar	KA 828	"4.72E-04, 0.584E-04, 1.19E-04"	7.11		90			minimum age of intrusion		REPLICATE K ANALYSES	
7499	1	143		hornblende	conventional K-Ar	KA 842	"4.72E-04, 0.584E-04, 1.19E-04"	0.13		18					REPLICATE K ANALYSES	"AGE PROBABLY REDUCED BY DEEP BURIAL, ABNORMAL HEATING, AND/OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7500	1	162		biotite	conventional K-Ar	KA 902	"4.72E-04, 0.584E-04, 1.19E-04"	6.758		84			age of intrusion		REPLICATE K ANALYSES	
7501	1	143.5		biotite	conventional K-Ar	KA 955	"4.72E-04, 0.584E-04, 1.19E-04"	6.247		91			age of intrusion	-28 +60 MESH SIZE	REPLICATE K ANALYSES	
7502	1	141		biotite	conventional K-Ar	KA 956	"4.72E-04, 0.584E-04, 1.19E-04"	7.848		96			age of intrusion	-16 +28 MESH SIZE	REPLICATE K ANALYSES	
7503	1	128		biotite	conventional K-Ar	KA 1432	"4.72E-04, 0.584E-04, 1.19E-04"	9.166		94				"-8 +10 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7503	2	142		hornblende	conventional K-Ar	KA 1433	"4.72E-04, 0.584E-04, 1.19E-04"	0.778		83			age of intrusion	"-10 +16 MESH, HAND-PICKED MATERIAL (REFERENCE ALSO DENOTES SAMPLE AS RUN KA 1432--COMPILER)."		
7504	1	132		biotite	conventional K-Ar	KA 1436	"4.72E-04, 0.584E-04, 1.19E-04"	8.472		90			minimum age of intrusion	"-16 +35 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7504	2	136		hornblende	conventional K-Ar	KA 1437	"4.72E-04, 0.584E-04, 1.19E-04"	0.663		50			age of intrusion	"-28 +60 MESH, HAND-PICKED MATERIAL"		
7505	1	126		biotite	conventional K-Ar	KA 1438	"4.72E-04, 0.584E-04, 1.19E-04"	8.839		93			minimum age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7505	2	131		hornblende	conventional K-Ar	KA 1439	"4.72E-04, 0.584E-04, 1.19E-04"	0.701		76			age of intrusion	"-16 +28 MESH, HAND-PICKED MATERIAL"		
7506	1	129		biotite	conventional K-Ar	KA 1440	"4.72E-04, 0.584E-04, 1.19E-04"	9.019		94			minimum age of intrusion	"-8 +10 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7506	2	132		hornblende	conventional K-Ar	KA-1441	"4.72E-04, 0.584E-04, 1.19E-04"	0.695		76			age of intrusion	"-16 +28 MESH, HAND-PICKED MATERIAL"		
7507	1	143		hornblende	conventional K-Ar	KA 1442	"4.72E-04, 0.584E-04, 1.19E-04"	0.545		68			age of intrusion	"-28 +48 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7507	2	142		hornblende	conventional K-Ar	KA 1449	"4.72E-04, 0.584E-04, 1.19E-04"	0.543		86			age of intrusion	"-35 +48 MESH, HAND-PICKED MATERIAL"		
7508	1	123		biotite	conventional K-Ar	KA 1501	"4.72E-04, 0.584E-04, 1.19E-04"	8.606		93			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7509	1	121		biotite	conventional K-Ar	KA 1502	"4.72E-04, 0.584E-04, 1.19E-04"	8.777		97			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7509	2	121		hornblende	conventional K-Ar	KA 1502-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	4.066		96			age of intrusion	"-100 +200 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7510	1	97.4		biotite	conventional K-Ar	KA 1503	"4.72E-04, 0.584E-04, 1.19E-04"	9.318		92			minimum age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7511	1	101		biotite	conventional K-Ar	KA 1506	"4.72E-04, 0.584E-04, 1.19E-04"	8.306		86			age of intrusion	"-60 +100 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYESE	
7511	2	102		hornblende	conventional K-Ar	KA 1506-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	3.635		92			age of intrusion	"-100 +150 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7512	1	86.8		biotite	conventional K-Ar	KA1508	"4.72E-04, 0.584E-04, 1.19E-04"	9.424		93			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7512	2	86.6		biotite	conventional K-Ar	KA 1508-R	"4.72E-04, 0.584E-04, 1.19E-04"	9.424		92			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7512	3	88.9		biotite	conventional K-Ar	KA 1508-B	"4.72E-04, 0.584E-04, 1.19E-04"	9.097		94			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7512	4	89		biotite	conventional K-Ar	KA 1508-B-R	"4.72E-04, 0.584E-04, 1.19E-04"	9.097		93			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7513	1	105		biotite	conventional K-Ar	KA 1509	"4.72E-04, 0.584E-04, 1.19E-04"	9.006		96			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7513	2	105		hornblende	conventional K-Ar	KA 1509-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.81		93			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7514	1	99		biotite	conventional K-Ar	KA 1510	"4.72E-04, 0.584E-04, 1.19E-04"	7.004		44			minimum age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7515	1	97.2		biotite	conventional K-Ar	KA 1511	"4.72E-04, 0.584E-04, 1.19E-04"	8.963		91				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	AGE PROBABLY REDUCED AS A RESULT OF LATER PLUTONISM.
7515	2	97.5		biotite	conventional K-Ar	KA 1511-10/16	"4.72E-04, 0.584E-04, 1.19E-04"	8.072		91				-10 +16 MESH SIZE	REPLICATE K ANALYSES	AGE PROBABLY REDUCED AS A RESULT OF LATER PLUTONISM.
7515	3	98.5		biotite	conventional K-Ar	KA 1511-16/28	"4.72E-04, 0.584E-04, 1.19E-04"	7.442		92				-16 +28 MESH SIZE	REPLICATE K ANALYSES	AGE PROBABLY REDUCED AS A RESULT OF LATER PLUTONISM.
7515	4	101.4		biotite	conventional K-Ar	KA 1511-35/48	"4.72E-04, 0.584E-04, 1.19E-04"	8.193		91				-35 +48 MESH SIZE	REPLICATE K ANALYSES	AGE PROBABLY REDUCED AS A RESULT OF LATER PLUTONISM.
7515	5	100.9		biotite	conventional K-Ar	KA 1511-100/150	"4.72E-04, 0.584E-04, 1.19E-04"	8.547		92				-100 +150 MESH SIZE	REPLICATE K ANALYSES	AGE PROBABLY REDUCED AS A RESULT OF LATER PLUTONISM
7516	1	124.6		hornblende	conventional K-Ar	KA 1511-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.056		85			age of intrusion	"-35 +60 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7517	1	87.8		biotite	conventional K-Ar	KA 1514	"4.72E-04, 0.584E-04, 1.19E-04"	8.705		95				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	PREFERRED AGE IS 91 M.Y.
7517	2	91.4		hornblende	conventional K-Ar	KA 1514-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.012		73			age of intrusion	"-28 +100 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7518	1	87.1		biotite	conventional K-Ar	KA 1518	"4.72E-04, 0.584E-04, 1.19E-04"	9.123		86			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7518	2	87.4		biotite	conventional K-Ar	KA 1518-R	"4.72E-04, 0.584E-04, 1.19E-04"	9.123		85			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7519	1	88.7		biotite	conventional K-Ar	KA 1521	"4.72E-04, 0.584E-04, 1.19E-04"	9.06		96			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7520	1	89.4		biotite	conventional K-Ar	KA 1523	"4.72E-04, 0.584E-04, 1.19E-04"	9.197		94			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7521	1	81.8		biotite	conventional K-Ar	KA 1524	"4.72E-04, 0.584E-04, 1.19E-04"	8.02		93			age not evaluated	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7522	1	82.1		biotite	conventional K-Ar	KA 1525	"4.72E-04, 0.584E-04, 1.19E-04"	9.039		90			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7523	1	84.6		biotite	conventional K-Ar	KA 1528	"4.72E-04, 0.584E-04, 1.19E-04"	8.248		88			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7524	1	83.7		biotite	conventional K-Ar	KA 1530	"4.72E-04, 0.584E-04, 1.19E-04"	8.499		88			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7525	1	83.6		biotite	conventional K-Ar	KA 1531	"4.72E-04, 0.584E-04, 1.19E-04"	8.969		90			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7526	1	83.2		biotite	conventional K-Ar	KA 1532	"4.72E-04, 0.584E-04, 1.19E-04"	9.135		93			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7527	1	82.5		biotite	conventional K-Ar	KA 1533	"4.72E-04, 0.584E-04, 1.19E-04"	9.092		89			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7527	2	84.3		hornblende	conventional K-Ar	KA 1533-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.807		61			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7527	3	70.3		plagioclase	conventional K-Ar	KA 1533-PL	"4.72E-04, 0.584E-04, 1.19E-04"	0.374		39				-60 +100 MESH SIZE; VERY FINE TWINNING IN SOME GRAINS; EXTENSIVE ALTERATION IN COARSE GRAINS; EXTENSIVE MYRMEKITE; HAND-PICKED MATERIAL		AGE IS TOO YOUNG
7527	4	73.5		orthoclase	conventional K-Ar	KA 1533-KF	"4.72E-04, 0.584E-04, 1.19E-04"	14.4		98				-28 +35 MESH SIZE; EXTENSIVELY CONVERTED TO MICROCLINE; HAND-PICKED MATERIAL		AGE IS TOO YOUNG
7527	5	88.9		quartz	conventional K-Ar	KA 1533-QTZ	"4.72E-04, 0.584E-04, 1.19E-04"	0.03		22			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		PREFERRED AGE IS 84 M.Y.
7528	1	82.1		biotite	conventional K-Ar	KA 1534	"4.72E-04, 0.584E-04, 1.19E-04"	7.558		92			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7529	1	84.3		biotite	conventional K-Ar	KA 1537	"4.72E-04, 0.584E-04, 1.19E-04"	8.733		93			age of intrusion	-16 +28 MESH SIZE; HAND-PICKED MATERIAL		
7530	1	83		biotite	conventional K-Ar	KA 1538	"4.72E-04, 0.584E-04, 1.19E-04"	9.147		95			age of intrusion	"-8 +10 MESH SIZE, HAND-PICKED MATERIAL"		
7530	2	83.6		biotite	conventional K-Ar	KA 1538-R	"4.72E-04, 0.584E-04, 1.19E-04"	9.147		92			age of intrusion	"-8 +10 MESH SIZE, HAND-PICKED MATERIAL"		
7530	3	84.2		hornblende	conventional K-Ar	KA 1538-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.705		77			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7531	1	87		biotite	conventional K-Ar	KA 1539	"4.72E-04, 0.584E-04, 1.19E-04"	9.44		92			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7531	2	90.1		hornblende	conventional K-Ar	KA 1539-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.989		87			age of intrusion	"-28 +35 MESH SIZE, HAND-PICKED MATERIAL"		
7532	1	88.7		biotite	conventional K-Ar	KA 1540	"4.72E-04, 0.584E-04, 1.19E-04"	9.359		93				"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		LOW AGE PROBABLY DUE TO REHEATING BY LATER INTRUSIONS
7532	2	96.7		hornblende	conventional K-Ar	KA 1540-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.011		67			age of intrusion	"-60 +100 MESH SIZE, HAND-PICKED MATERIAL"		
7533	1	94.4		biotite	conventional K-Ar	KA 1541	"4.72E-04, 0.584E-04, 1.19E-04"	9.285		94			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7533	2	94		biotite	conventional K-Ar	KA 1541-R	"4.72E-04, 0.584E-04, 1.19E-04"	9.285		93			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7533	3	97.8		hornblende	conventional K-Ar	KA 1541-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.887		86			age of intrusion	"-26 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7533	4	90.7		plagioclase	conventional K-Ar	KA 1541-PL	"4.72E-04, 0.584E-04, 1.19E-04"	0.281		58				-28 +60 MESH SIZE; MUCH MYRMEKITE; PRONOUNCED WAVY EXTINCTION; COARSE TWINNING; ZONED; HAND-PICKED MATERIAL.		AGE IS APPARENTLY TOO YOUNG
7533	5	83.5		orthoclase	conventional K-Ar	KA 1541-KF	"4.72E-04, 0.584E-04, 1.19E-04"	14.76		97				-28 +35 MESH SIZE; EXTENSIVE MICROCLINE TWINNING; HAND-PICKED MATERIAL		AGE IS TOO YOUNG
7534	1	108.3		quartz	conventional K-Ar	KA 1541-QTZ	"4.72E-04, 0.584E-04, 1.19E-04"	0.023		8				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		AGE IS APPARENTLY TOO OLD; PREFERRED AGE IS 98 M.Y.
7535	1	84.8		biotite	conventional K-Ar	KA 1542	"4.72E-04, 0.584E-04, 1.19E-04"	9.294		93			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7536	1	82.9		biotite	conventional K-Ar	KA 1543	"4.72E-04, 0.584E-04, 1.19E-04"	9.25		94			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7537	1	82.7		biotite	conventional K-Ar	KA 1545	"4.72E-04, 0.584E-04, 1.19E-04"	8.88		92			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7538	1	84.2		biotite	conventional K-Ar	KA 1546	"4.72E-04, 0.584E-04, 1.19E-04"	8.833		95			age of intrusion	"-8 +10 MESH SIZE, HAND-PICKED MATERIAL"		
7539	1	85.6		biotite	conventional K-Ar	KA 1547	"4.72E-04, 0.584E-04, 1.19E-04"	8.853		96			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7540	1	81.5		biotite	conventional K-Ar	KA 1548	"4.72E-04, 0.584E-04, 1.19E-04"	8.428		91			age of intrusion	"-35 +48 MESH SIZE, HAND-PICKED MATERIAL"		
7540	2	81.8		biotite	conventional K-Ar	KA 1548-R	"4.72E-04, 0.584E-04, 1.19E-04"	8.428		94			age of intrusion	"-35 +48 MESH SIZE, HAND-PICKED MATERIAL"		
7541	1	81.1		biotite	conventional K-Ar	KA 1549	"4.72E-04, 0.584E-04, 1.19E-04"	8.558		92			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7542	1	79.1		biotite	conventional K-Ar	KA 1551	"4.72E-04, 0.584E-04, 1.19E-04"	8.446		94			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7543	1	78.1		biotite	conventional K-Ar	KA 1552	"4.72E-04, 0.584E-04, 1.19E-04"	8.184		90			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7544	1	80.1		biotite	conventional K-Ar	KA 1554	"4.72E-04, 0.584E-04, 1.19E-04"	8.69		93			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7545	1	80.1		biotite	conventional K-Ar	KA 1555	"4.72E-04, 0.584E-04, 1.19E-04"	8.516		92			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7546	1	82.1		biotite	conventional K-Ar	KA 1556	"4.72E-04, 0.584E-04, 1.19E-04"	8.978		89			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7547	1	89.7		biotite	conventional K-Ar	KA 1563	"4.72E-04, 0.584E-04, 1.19E-04"	9.021		93			age of intrusion	"-28 +35 MESH SIZE, HAND-PICKED MATERIAL"		
7548	1	88.5		biotite	conventional K-Ar	KA 1564	"4.72E-04, 0.584E-04, 1.19E-04"	9.071		84				"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7548	2	95.6		hornblende	conventional K-Ar	KA 1564-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.289		89			minimum age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7548	3	72.6		plagioclase	conventional K-Ar	KA 1564-PL	"4.72E-04, 0.584E-04, 1.19E-04"	0.334		51				-28 +60 MESH SIZE; STRONG ZONING; EN ECHELON SHEARING; HAND-PICKED MATERIAL		AGE TOO YOUNG.
7548	4	87.5		orthoclase	conventional K-Ar	KA 1564-KF	"4.72E-04, 0.584E-04, 1.19E-04"	14.09		98				-35 +48 MESH SIZE; MINIMUM WAVY EXTINCTION; HAND-PICKED MATERIAL		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7548	5	57.9		quartz	conventional K-Ar	KA 1564-QTZ	"4.72E-04, 0.584E-04, 1.19E-04"	0.017		8				-28 +60 MESH SIZE; HAND-PICKED MATERIAL		AGE TOO YOUNG
7549	1	87.7		biotite	conventional K-Ar	KA 1565	"4.72E-04, 0.584E-04, 1.19E-04"	9.004		94			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7550	1	87.8		biotite	conventional K-Ar	KA 1566	"4.72E-04, 0.584E-04, 1.19E-04"	9.18		91			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7550	2	88.2		biotite	conventional K-Ar	KA 1566-R	"4.72E-04, 0.584E-04, 1.19E-04"	9.18		90			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7550	3	88.7		biotite	conventional K-Ar	KA 1566-B	"4.72E-04, 0.584E-04, 1.19E-04"	9.095		93			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7550	4	88.2		biotite	conventional K-Ar	KA 1566-B-R	"4.72E-04, 0.584E-04, 1.19E-04"	9.095		91			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7551	1	102.3		biotite	conventional K-Ar	KA 1569	"4.72E-04, 0.584E-04, 1.19E-04"	9.605		95			minimum age of intrusion	-10 +16 MESH SIZE; SLIGHT ALTERATION; HAND-PICKED MATERIAL		
7551	2	107.5		hornblende	conventional K-Ar	KA 1569-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.711		76			age of intrusion	-28 +60 MESH SIZE; SLIGHT ALTERATION; HAND-PICKED MATERIAL		
7551	3	102.4		plagioclase	conventional K-Ar	KA 1569-PL	"4.72E-04, 0.584E-04, 1.19E-04"	0.933		80			minimum age of intrusion	-60 +100 MESH SIZE; BIG BROAD TWINS; ALTERATION LOCALLY STRONG INTERNALLY AND ON BOUNDARIES; HAND-PICKED MATERIAL		
7551	4	100.1		orthoclase	conventional K-Ar	KA 1569-KF	"4.72E-04, 0.584E-04, 1.19E-04"	11.15		94			minimum age of intrusion	-28 +60 MESH SIZE; VERY MILD STRAIN; HAND-PICKED MATERIAL		
7551	5	58.1		quartz	conventional K-Ar	KA 1569-QTZ	"4.72E-04, 0.584E-04, 1.19E-04"	0.049		9				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"	RELATIVELY HIGH K20 VALUE MAY INDICATE LACK OF REMOVAL OF ALL ALTERED PLAGIOCLASE FROM THE FINAL CONCENTRATE	AGE IS TOO YOUNG.
7552	1	98		biotite	conventional K-Ar	KA 1570	"4.72E-04, 0.584E-04, 1.19E-04"	9.434		91			age of intrusion	"-8 +10 MESH SIZE, HAND-PICKED MATERIAL"		
7552	2	102		hornblende	conventional K-Ar	KA 1570-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.594		82			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7553	1	98.2		biotite	conventional K-Ar	KA 1571	"4.72E-04, 0.584E-04, 1.19E-04"	9.07		90			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7554	1	92.3		biotite	conventional K-Ar	KA 1572	"4.72E-04, 0.584E-04, 1.19E-04"	9.105		90				"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7555	1	90.6		biotite	conventional K-Ar	KA 1573	"4.72E-04, 0.584E-04, 1.19E-04"	9.227		89				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7556	1	87.7		biotite	conventional K-Ar	KA 1574	"4.72E-04, 0.584E-04, 1.19E-04"	8.764		90			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7557	1	85.5		biotite	conventional K-Ar	KA 1575	"4.72E-04, 0.584E-04, 1.19E-04"	8.588		85			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKEDMATERIAL"		
7557	2	87.7		hornblende	conventional K-Ar	KA 1575-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.285		88			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7558	1	87		biotite	conventional K-Ar	KA 1576	"4.72E-04, 0.584E-04, 1.19E-04"	8.907		91			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7559	1	85.1		biotite	conventional K-Ar	KA 1577	"4.72E-04, 0.584E-04, 1.19E-04"	8.486		87			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7560	1	79.2		biotite	conventional K-Ar	KA 1578	"4.72E-04, 0.584E-04, 1.19E-04"	9.269		90			minimum age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7561	1	78.7		biotite	conventional K-Ar	KA 1579	"4.72E-04, 0.584E-04, 1.19E-04"	8.839		91			minimum age of intrusion	"-35 +48 MESH SIZE, HAND-PICKED MATERIAL"		
7562	1	78.2		biotite	conventional K-Ar	KA 1580	"4.72E-04, 0.584E-04, 1.19E-04"	8.909		87			minimum age of intrusion	"-48 +60 MESH SIZE,  HAND-PICKED MATERIAL"		
7563	1	66.1		biotite	conventional K-Ar	KA 1581	"4.72E-04, 0.584E-04, 1.19E-04"	8.295		80				"-35 +48 MESH SIZE, HAND-PICKED MATERIAL"		AGE APPEARS TOO YOUNG
7564	1	74		biotite	conventional K-Ar	KA 1582	"4.72E-04, 0.584E-04, 1.19E-04"	9.182		79				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7564	2	86.2		hornblende	conventional K-Ar	KA 1582-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.091		83			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7565	1	81.8		biotite	conventional K-Ar	KA 1583	"4.72E-04, 0.584E-04, 1.19E-04"	9.138		87			age of intrusion			
7566	1	79.1		biotite	conventional K-Ar	KA 1584	"4.72E-04, 0.584E-04, 1.19E-04"	8.884		89			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7566	2	80		hornblende	conventional K-Ar	KA 1584-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.747		63			age of intrusion	"-60 +150 MESH SIZE, HAND-PICKED MATERIAL"		
7567	1	79.8		biotite	conventional K-Ar	KA 1585	"4.72E-04, 0.584E-04, 1.19E-04"	8.492		94			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7568	1	80.5		biotite	conventional K-Ar	KA 1586	"4.72E-04, 0.584E-04, 1.19E-04"	9.197		90			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7569	1	78.4		biotite	conventional K-Ar	KA 1587	"4.72E-04, 0.584E-04, 1.19E-04"	9.186		96			minimum age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7569	2	78.4		biotite	conventional K-Ar	KA 1587-R	"4.72E-04, 0.584E-04, 1.19E-04"	9.186		90			minimum age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7569	3	84		hornblende	conventional K-Ar	KA 1587-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.612		86			age of intrusion	"-60 +100 MESH SIZE, HAND-PICKED MATERIAL"		
7570	1	80.1		BIOTITE	conventional K-Ar	KA 1592	"4.72E-04, 0.584E-04, 1.19E-04"	9.309		92			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7570	2	81.5		hornblende	conventional K-Ar	KA 1592-HBD	"4.72E-04, 0.584E-04, 1.19E-04"			80			age of intrusion			
7571	1	82.4		biotite	conventional K-Ar	KA 1594	"4.72E-04, 0.584E-04, 1.19E-04"	8.58		91			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7572	1	80.1		biotite	conventional K-Ar	KA 1598	"4.72E-04, 0.584E-04, 1.19E-04"	9.156		91			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7573	1	81.4		biotite	conventional K-Ar	KA 1599	"4.72E-04, 0.584E-04, 1.19E-04"	8.686		90			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7574	1	91.7		biotite	conventional K-Ar	KA 1602	"4.72E-04, 0.584E-04, 1.19E-04"	9.189		94			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7575	1	92.6		biotite	conventional K-Ar	KA 1603	"4.72E-04, 0.584E-04, 1.19E-04"	9.298		92			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7576	1	82.7		biotite	conventional K-Ar	KA 1604	"4.72E-04, 0.584E-04, 1.19E-04"	8.668		75			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7577	1	87.4		biotite	conventional K-Ar	KA 1605	"4.72E-04, 0.584E-04, 1.19E-04"	9.075		85			age of intrusion	-10 +16 MESH SIZE; SLIGHT ALTERATION; HAND-PICKED MATERIAL		
7577	2	90.1		hornblende	conventional K-Ar	KA 1605-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.07		80			age of intrusion	-28 +60 MESH SIZE; SLIGHT ALTERATION; HAND-PICKED MATERIAL		
7577	3	88.1		plagioclase	conventional K-Ar	KA 1605-PL	"4.72E-04, 0.584E-04, 1.19E-04"	0.306		69			age of intrusion	-60 +100 MESH SIZE; STRONGLY ZONED; ALTERATION SLIGHT; HAND-PICKED MATERIAL		
7577	4	87		orthoclase	conventional K-Ar	KA 1605-KF	"4.72E-04, 0.584E-04, 1.19E-04"	14.06		98			age of intrusion	-28 +60 MESH SIZE; INCIPIENT MICROCLINIZATION; HAND-PICKED MATERIAL		
7578	1	88.5		biotite	conventional K-Ar	KA 1606	"4.72E-04, 0.584E-04, 1.19E-04"	8.723		81			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7579	1	88.9		biotite	conventional K-Ar	KA 1607	"4.72E-04, 0.584E-04, 1.19E-04"	9.081		74			age of intrusion	"-8 +10 MESH SIZE, HAND-PICKED MATERIAL"		
7580	1	90.5		biotite	conventional K-Ar	KA 1608	"4.72E-04, 0.584E-04, 1.19E-04"	8.554		85			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7580	2	93.2		biotite	conventional K-Ar	KA 1608-R	"4.72E-04, 0.584E-04, 1.19E-04"	8.554		90			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7581	1	87.4		biotite	conventional K-Ar	KA 1609	"4.72E-04, 0.584E-04, 1.19E-04"	8.784		87				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		DISCORDANCE BETWEEN BIOTITE AND HORNBLENDE OF THIS SAMPLE POSSIBLY DUE TO DEPTH OF EMPLACEMENT AND/OR EROSION
7581	2	93		hornblende	conventional K-Ar	KA 1609-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.174		83			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7582	1	88.3		biotite	conventional K-Ar	KA 1610	"4.72E-04, 0.584E-04, 1.19E-04"	8.161		81			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7582	2	86.4		hornblende	conventional K-Ar	KA 1610-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	2.574		86			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7583	1	81.2		biotite	conventional K-Ar	KA 1621	"4.72E-04, 0.584E-04, 1.19E-04"	8.763		81			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7584	1	138		biotite	conventional K-Ar	KA 1624	"4.72E-04, 0.584E-04, 1.19E-04"	9.311		94			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7584	2	136		hornblende	conventional K-Ar	KA 1624-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.876		89			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7585	1	93.5		biotite	conventional K-Ar	KA 1626	"4.72E-04, 0.584E-04, 1.19E-04"	9.313		83				"-8 +10 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7585	2	101		hornblende	conventional K-Ar	KA 1626-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.743		75			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7586	1	97.7		biotite	conventional K-Ar	KA 1627	"4.72E-04, 0.584E-04, 1.19E-04"	9.271		92			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7586	2	100		hornblende	conventional K-Ar	KA 1627-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.757		70			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7587	1	104		biotite	conventional K-Ar	KA 1628	"4.72E-04, 0.584E-04, 1.19E-04"	9.36		86				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7587	2	144		hornblende	conventional K-Ar	KA 1628-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.869		82			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7588	1	103		biotite	conventional K-Ar	KA 1629	"4.72E-04, 0.584E-04, 1.19E-04"	9.115		92			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7588	2	105		hornblende	conventional K-Ar	KA 1629-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.549		74			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7589	1	86.1		biotite	conventional K-Ar	KA 1631	"4.72E-04, 0.584E-04, 1.19E-04"	8.856		79			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7590	1	152		biotite	conventional K-Ar	KA 1632	"4.72E-04, 0.584E-04, 1.19E-04"	8.96		90				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7590	2	162		hornblende	conventional K-Ar	KA 1632-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.151		74			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7591	1	144		biotite	conventional K-Ar	KA 1634	"4.72E-04, 0.584E-04, 1.19E-04"	9.354		95				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7591	2	156		hornblende	conventional K-Ar	KA 1634-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.229		90			minimum age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7592	1	125		biotite	conventional K-Ar	KA 1635	"4.72E-04, 0.584E-04, 1.19E-04"	9.413		80				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7592	2	148		hornblende	conventional K-Ar	KA 1635-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.648		96			age of intrusion	"-28 +100 MESH SIZE, HAND-PICKED MATERIAL"		
7593	1	96		biotite	conventional K-Ar	KA 1636	"4.72E-04, 0.584E-04, 1.19E-04"	9.08		89				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7594	1	95.8		hornblende	conventional K-Ar	KA 1662-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.152		81				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7595	1	101		hornblende	conventional K-Ar	KA 1663-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.21		89				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7596	1	145		biotite	conventional K-Ar	KA 1664	"4.72E-04, 0.584E-04, 1.19E-04"	8.815		91			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7596	2	148		hornblende	conventional K-Ar	KA 1664-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.859		89			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7597	1	108		hornblende	conventional K-Ar	KA 1665-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.944		91			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7598	1	107		biotite	conventional K-Ar	KA 1666	"4.72E-04, 0.584E-04, 1.19E-04"	9.289		95			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7599	1	80.4		biotite	conventional K-Ar	KA 1667	"4.72E-04, 0.584E-04, 1.19E-04"	8.684		87			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7599	2	81.4		hornblende	conventional K-Ar	KA 1667-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.128		83			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7600	1	70.6		hornblende	conventional K-Ar	KA 1668-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.295		84				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7601	1	69.7		hornblende	conventional K-Ar	KA 1670-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.462		95				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7602	1	76.9		hornblende	conventional K-Ar	KA 1671-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.005		90				"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7603	1	67.2		biotite	conventional K-Ar	KA 1672	"4.72E-04, 0.584E-04, 1.19E-04"	9.213		86				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7603	2	69.5		hornblende	conventional K-Ar	KA 1672-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.288		89				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7604	1	68.1		biotite	conventional K-Ar	KA 1674	"4.72E-04, 0.584E-04, 1.19E-04"	8.831		87				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7604	2	73.1		hornblende	conventional K-Ar	KA 1674-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.239		71				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7605	1	64.7		biotite	conventional K-Ar	KA 1675	"4.72E-04, 0.584E-04, 1.19E-04"	9.038		87				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7606	1	66.1		biotite	conventional K-Ar	KA 1676	"4.72E-04, 0.584E-04, 1.19E-04"	9.019		95				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7607	1	69.7		biotite	conventional K-Ar	KA 1677	"4.72E-04, 0.584E-04, 1.19E-04"	9.127		95				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7607	2	72.6		hornblende	conventional K-Ar	KA 1677-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.044		91				"-60 +28 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7608	1	92.8		biotite	conventional K-Ar	KA 1678	"4.72E-04, 0.584E-04, 1.19E-04"	8.998		87				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7608	2	97.6		hornblende	conventional K-Ar	KA 1678-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.805		91				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7609	1	93.7		biotite	conventional K-Ar	KA 1679	"4.72E-04, 0.584E-04, 1.19E-04"	9.056		94				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7610	1	77.4		hornblende	conventional K-Ar	KA 1682-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.39		57			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7611	1	102		biotite	conventional K-Ar	KA 1683	"4.72E-04, 0.584E-04, 1.19E-04"	9.142		97			minimum age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7611	2	100		hornblende	conventional K-Ar	KA 1683-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.719		92			minimum age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7612	1	65.8		biotite	conventional K-Ar	KA 1696	"4.72E-04, 0.584E-04, 1.19E-04"	9.098		88				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7612	2	70		hornblende	conventional K-Ar	KA 1696-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.041		90				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		"AGE REFLECTS DEEP BURIAL, ABNORMAL HEATING, OR ABNORMAL STRAIN PRIOR TO PRESENT EXPOSURE"
7613	1	119		biotite	conventional K-Ar	KA 1697	"4.72E-04, 0.584E-04, 1.19E-04"	8.78		97			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7614	1	108		biotite	conventional K-Ar	KA 1698	"4.72E-04, 0.584E-04, 1.19E-04"	9.083		94				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF LATER PLUTONISM
7614	2	140		hornblende	conventional K-Ar	KA 1698-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.934		94			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7615	1	117		biotite	conventional K-Ar	KA 1699	"4.72E-04, 0.584E-04, 1.19E-04"	9.489		84				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7615	2	140		hornblende	conventional K-Ar	KA 1699-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.859		96			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7616	1	138		hornblende	conventional K-Ar	KA 1700-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.564		72			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7617	1	143		biotite	conventional K-Ar	KA 1701	"4.72E-04, 0.584E-04, 1.19E-04"	9.445		96			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7617	2	146		hornblende	conventional K-Ar	KA 1701-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.694		75			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7618	1	93.3		biotite	conventional K-Ar	KA 67-64	"4.72E-04, 0.584E-04, 1.19E-04"	8.688		91			minimum age of intrusion		REPLICATE K ANALYESE	AGE PROBABLY REDUCED BY REHEATING DURING LATER INTRUSIONS
7618	2	91		biotite	conventional K-Ar	67	"4.72E-04, 0.584E-04, 1.19E-04"	8.54		87						
7619	1	92.9		biotite	conventional K-Ar	KA 71-64	"4.72E-04, 0.584E-04, 1.19E-04"	9.057		91			minimum age of intrusion		REPLICATE K ANALYSES	AGE PROBABLY REDUCED BY REHEATING DURING LATER INTRUSIONS
7619	2	88.5		biotite	conventional K-Ar	71	"4.72E-04, 0.584E-04, 1.19E-04"	9.1		93						
7620	1	90		biotite	conventional K-Ar	KA 72-64	"4.72E-04, 0.584E-04, 1.19E-04"	9.075		89			minimum age of intrusion	-16 +35 MESH SIZE	REPLICATE K ANALYSES	AGE PROBABLY REDUCED BY REHEATING DURING LATER INTRUSIONS
7620	2	87.8		biotite	conventional K-Ar	72	"4.72E-04, 0.584E-04, 1.19E-04"	9.14		83						
7621	1	81.9		biotite	conventional K-Ar	KA 131-64	"4.72E-04, 0.584E-04, 1.19E-04"	9.289		89			age of intrusion	HAND-PICKED MATERIAL	REPLICATE K ANALYSES	
7622	1	83.7		biotite	conventional K-Ar	DKA 1028	"4.72E-04, 0.584E-04, 1.19E-04"	9.031		92				-60 +80 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7623	1	84.8		biotite	conventional K-Ar	DKA 1029	"4.72E-04, 0.584E-04, 1.19E-04"	8.931		90				-80 +100 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7624	1	94.8		hornblende	conventional K-Ar	MKA 409	"4.72E-04, 0.584E-04, 1.19E-04"	0.936		71				-100 +150 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7625	1	93.9		biotite	conventional K-Ar	MKA 41	"4.72E-04, 0.584E-04, 1.19E-04"	7.29		89				-80 +100 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7626	1	83.2		biotite	conventional K-Ar	DKA 1031	"4.72E-04, 0.584E-04, 1.19E-04"	9.071		94				-80 +100 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7627	1	92.8		hornblende	conventional K-Ar	DKA 1032	"4.72E-04, 0.584E-04, 1.19E-04"	0.787		78				-100 +150 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7628	1	99		biotite	conventional K-Ar	DKA 1030	"4.72E-04, 0.584E-04, 1.19E-04"	9.241		90				-80 +100 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7629	1	206		hornblende	conventional K-Ar	MKA 410	"4.72E-04, 0.584E-04, 1.19E-04"	0.537		78			age of intrusion	-100 +150 MESH SIZE		
7630	1	82		biotite	conventional K-Ar	BKA 558	"4.72E-04, 0.584E-04, 1.19E-04"	7.531		67				-60 +80 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7631	1	89.6		biotite	conventional K-Ar	MKA 42	"4.72E-04, 0.584E-04, 1.19E-04"	8.387		91				-40 +60 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7632	1	87.7		biotite	conventional K-Ar	BKA 488	"4.72E-04, 0.584E-04, 1.19E-04"	9.001		88			age of intrusion	-80 +100 MESH SIZE		
7633	1	85.5		hornblende	conventional K-Ar	61-192	"4.72E-04, 0.584E-04, 1.19E-04"	0.454		85			age of intrusion	-100 +150 MESH SIZE		
7634	1	87.9		biotite	conventional K-Ar	BKA 487	"4.72E-04, 0.584E-04, 1.19E-04"	8.977		79				-40 +60 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7635	1	97.1		hornblende	conventional K-Ar	MKA 458	"4.72E-04, 0.584E-04, 1.19E-04"	0.775		57				-100 +115 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7636	1	69		biotite	conventional K-Ar	BKA 557	"4.72E-04, 0.584E-04, 1.19E-04"	7.519		78				-60 +80 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7637	1	80.3		biotite	conventional K-Ar	61-001	"4.72E-04, 0.584E-04, 1.19E-04"	8.845		91			age of intrusion	-60 +80 MESH SIZE		
7638	1	83.3		hornblende	conventional K-Ar	61-020	"4.72E-04, 0.584E-04, 1.19E-04"	0.731		88			age of intrusion	-80 +100 MESH SIZE		
7639	1	134		biotite	conventional K-Ar	MKA 51	"4.72E-04, 0.584E-04, 1.19E-04"	4.097		79				-60 +80 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER INTRUSIONS
7640	1	177.6		hornblende	conventional K-Ar	61-045	"4.72E-04, 0.584E-04, 1.19E-04"	0.587		83			age of intrusion	-100 +115 MESH SIZE		
7641	1	149.2		biotite	conventional K-Ar	61-019	"4.72E-04, 0.584E-04, 1.19E-04"	8.507		91				-60 +80 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7642	1	157.5		hornblende	conventional K-Ar	61-025	"4.72E-04, 0.584E-04, 1.19E-04"	0.897		94			minimum age of intrusion	-100 +115 MESH SIZE		
7643	1	153.5		biotite	conventional K-Ar	51-166	"4.72E-04, 0.584E-04, 1.19E-04"	8.447		91			age not evaluated	-60 +80 MESH SIZE (SAMPLE NO. SHOULD PROBABLY BE 61-166--COMPLIER)		
7644	1	139.4		biotite	conventional K-Ar	61-003	"4.72E-04, 0.584E-04, 1.19E-04"	7.796		64				-60 +80 MESH SIZE		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7645	1	195		hornblende	conventional K-Ar	61-017	"4.72E-04, 0.584E-04, 1.19E-04"	1.08		94			age of intrusion	-100 +115 MESH SIZE		
7646	1	210.2		biotite	conventional K-Ar	61-008	"4.72E-04, 0.584E-04, 1.19E-04"	8.23		96			age of intrusion	-60 +80 MESH SIZE		
7647	1	206.2		hornblende	conventional K-Ar	61-026	"4.72E-04, 0.584E-04, 1.19E-04"	1.08		95			age of intrusion	-100 +115 MESH SIZE		
7648	1	85.9		biotite	conventional K-Ar	71-077	"4.72E-04, 0.584E-04, 1.19E-04"	9.423		87			age of intrusion	-60 +80 MESH SIZE		
7649	1	87.7		hornblende	conventional K-Ar	71-065	"4.72E-04, 0.584E-04, 1.19E-04"	1.071		52			age of intrusion	-100 +150 MESH SIZE		
7650	1	104.9		hornblende	conventional K-Ar	71-069	"4.72E-04, 0.584E-04, 1.19E-04"	0.809		44			age of intrusion	-100 +115 MESH SIZE		
7651	1	92		hornblende	conventional K-Ar	MKA 399	"4.72E-04, 0.584E-04, 1.19E-04"	1000		87			age not evaluated	-100 +115 MESH SIZE		"THIS AGE ALSO REPORTED BY MARVIN (1968); MARVIN AND DOBSON (1979, P. 8, ENTRY 39) REPORTED AN AGE OF 96 M.Y. (RECALCULATED) FOR THIS SAMPLE."
7652	1	155.5		hornblende	conventional K-Ar	61-047	"4.72E-04, 0.584E-04, 1.19E-04"	0.722		88			minimum age of intrusion	-100 +115 MESH SIZE		
7653	1	163.1		hornblende	conventional K-Ar	61-043	"4.72E-04, 0.584E-04, 1.19E-04"	0.685		85			age of intrusion	-80 +100 MESH SIZE		
7654	1	156.7		biotite	conventional K-Ar	61-005	"4.72E-04, 0.584E-04, 1.19E-04"	8.385		94			minimum age of intrusion			
7655	1	130		biotite	conventional K-Ar	KA 957	"4.72E-04, 0.584E-04, 1.19E-04"	7.669		94			minimum age of intrusion	-16 +28 MESH SIZE	REPLICATE K ANALYSES (REFERENCE ALSO REPORTS AGE AS 131 M.Y.--COMPLIER)	
7656	1	99.9		biotite	conventional K-Ar	KA 1504	"4.72E-04, 0.584E-04, 1.19E-04"	8.799		93			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7657	1	96.7		biotite	conventional K-Ar	KA 1512	"4.72E-04, 0.584E-04, 1.19E-04"	8.952		89			age of intrusion	-10 +16 MESH SIZE; EXTENSIVELY CHLORITIZED (PICKED CONCENTRATES USED FOR ANALYSIS)	REPLICATE K ANALYSES	
7657	2	97.8		hornblende	conventional K-Ar	KA 1512-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.803		73			age of intrusion	-28 +60 MESH SIZE; EXTENSIVELY CHLORITIZED (PICKED CONCENTRATES USED FOR ANALYSIS)	REPLICATE K ANALYSES	
7657	3	92.5		plagioclase	conventional K-Ar	KA 1512-PL	"4.72E-04, 0.584E-04, 1.19E-04"	0.358		65				-28 +60 MESH SIZE; TWINNING THIN AND CLOSE; ALTERATION THROUGHOUT GRAINS; HAND-PICKED MATERIAL	REPLICATE K ANALYSES	PREFERRED AGE IS 98 M.Y.
7657	4	100.1		orthoclase	conventional K-Ar	KA 1512-KF	"4.72E-04, 0.584E-04, 1.19E-04"	13.91		97				-60 +100 MESH SIZE; INCIPIENT MICROCLINE AND LOW WAVY EXTINCTION; HAND-PICKED MATERIAL	REPLICATE K ANALYSES	PREFERRED AGE IS 98 M.Y.
7657	5	109.4		quartz	conventional K-Ar	KA 1512-QTZ	"4.72E-04, 0.584E-04, 1.19E-04"	0.0336		16				"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	PREFERRED AGE IS 98 M.Y.
7658	1	91.7		biotite	conventional K-Ar	KA 1519	"4.72E-04, 0.584E-04, 1.19E-04"	8.971		90				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY LATER PLUTONISM
7658	2	99.6		hornblende	conventional K-Ar	KA 1519-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.992		90			age of intrusion	"-60 +100 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7659	1	94.3		biotite	conventional K-Ar	KA 1520	"4.72E-04, 0.584E-04, 1.19E-04"	9.327		96			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"	REPLICATE K ANALYSES	
7660	1	82.4		biotite	conventional K-Ar	KA 1526	"4.72E-04, 0.584E-04, 1.19E-04"	9.372		92			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7660	2	83.7		biotite	conventional K-Ar	KA 1526-R	"4.72E-04, 0.584E-04, 1.19E-04"	9.372		93			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7661	1	81.9		biotite	conventional K-Ar	KA 1527	"4.72E-04, 0.584E-04, 1.19E-04"	9.16		85			age of intrusion	-10 +16 MESH SIZE; HIGH CHLORITE CONTENT; HAND-PICKED MATERIAL		
7661	2	80.2		biotite	conventional K-Ar	KA 1527-8/10	"4.72E-04, 0.584E-04, 1.19E-04"	8.815		90			age of intrusion	-8 +10 MESH SIZE; HIGH CHLORITE CONTENT		
7661	3	80		biotite	conventional K-Ar	KA 1527-10/16	"4.72E-04, 0.584E-04, 1.19E-04"	8.635		93			age of intrusion	-10 +16 MESH SIZE; HIGH CHLORITE CONTENT		
7661	4	82		biotite	conventional K-Ar	KA 1527-16/28	"4.72E-04, 0.584E-04, 1.19E-04"	8.29		92			age of intrusion	-16 +28 MESH SIZE; HIGH CHLORITE CONTENT		
7661	5	85.7		biotite	conventional K-Ar	KA 1527-35/48	"4.72E-04, 0.584E-04, 1.19E-04"	5.235		92			age not evaluated	-35 +48 MESH SIZE; HIGH CHLORITE CONTENT		
7662	1	86.9		biotite	conventional K-Ar	KA 1527-48/60	"4.72E-04, 0.584E-04, 1.19E-04"	3.821		90			age not evaluated	-48 +60 MESH SIZE; HIGH CHLORITE CONTENT		
7662	2	84.7		biotite	conventional K-Ar	KA 1527-60/100	"4.72E-04, 0.584E-04, 1.19E-04"	3.404		88			age not evaluated	-60 +100 MESH SIZE; HIGH CHLORITE CONTENT		
7662	3	90.8		biotite	conventional K-Ar	KA 1527-100/150	"4.72E-04, 0.584E-04, 1.19E-04"	1.964		71			maximum age of intrusion	-100 +150 MESH SIZE; HIGH CHLORITE CONTENT		
7663	1	82.8		biotite	conventional K-Ar	KA 1535	"4.72E-04, 0.584E-04, 1.19E-04"	8.97		88			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7664	1	81.7		biotite	conventional K-Ar	KA 1536	"4.72E-04, 0.584E-04, 1.19E-04"	8.78		93				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7665	1	79.5		biotite	conventional K-Ar	KA 1550	"4.72E-04, 0.584E-04, 1.19E-04"	8.052		91			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7666	1	78.8		biotite	conventional K-Ar	KA 1553	"4.72E-04, 0.584E-04, 1.19E-04"	8.606		85			age of intrusion	"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		
7666	2	77.4		hornblende	conventional K-Ar	KA 1553-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.866		58			age of intrusion	"-60 +100 MESH SIZE, HAND-PICKED MATERIAL"		
7667	1	78.7		biotite	conventional K-Ar	KA 1559	"4.72E-04, 0.584E-04, 1.19E-04"	9.183		88			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7668	1	77.4		biotite	conventional K-Ar	KA 1560	"4.72E-04, 0.584E-04, 1.19E-04"	9.607		88			age of intrusion	"-28 +35 MESH SIZE, HAND-PICKED MATERIAL"		
7669	1	79.6		biotite	conventional K-Ar	KA 1561	"4.72E-04, 0.584E-04, 1.19E-04"	8.248		92			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7670	1	81.8		biotite	conventional K-Ar	KA 1588	"4.72E-04, 0.584E-04, 1.19E-04"	8.368		93			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7671	1	79.6		biotite	conventional K-Ar	KA 1589	"4.72E-04, 0.584E-04, 1.19E-04"	8.64		84			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7672	1	81.9		biotite	conventional K-Ar	KA 1590	"4.72E-04, 0.584E-04, 1.19E-04"	8.906		89			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7672	2	81.5		biotite	conventional K-Ar	KA 1590-R	"4.72E-04, 0.584E-04, 1.19E-04"	8.906		84				"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7673	1	79.3		biotite	conventional K-Ar	KA 1591	"4.72E-04, 0.584E-04, 1.19E-04"	8.353		93			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7674	1	83.4		biotite	conventional K-Ar	KA 1593	"4.72E-04, 0.584E-04, 1.19E-04"	8.556		93			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7675	1	81		biotite	conventional K-Ar	KA 1595	"4.72E-04, 0.584E-04, 1.19E-04"	8.792		90			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7676	1	81.4		biotite	conventional K-Ar	KA 1596	"4.72E-04, 0.584E-04, 1.19E-04"	8.41		91			age of intrusion	"-28 +48 MESH SIZE, HAND-PICKED MATERIAL"		
7677	1	80.2		biotite	conventional K-Ar	KA 1597	"4.72E-04, 0.584E-04, 1.19E-04"	8.959		95			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7678	1	83.8		biotite	conventional K-Ar	KA 1600	"4.72E-04, 0.584E-04, 1.19E-04"	7.787		89			age of intrusion	"-28 +35 MESH SIZE, HAND-PICKED MATERIAL"		
7679	1	82.5		biotite	conventional K-Ar	KA 1601	"4.72E-04, 0.584E-04, 1.19E-04"	8.768		91				"-10 +16 MESH SIZE, HAND-PICKED MATERIAL"		AGE PROBABLY REDUCED AS A RESULT OF REHEATING BY RECESS PLUTON
7679	2	88.4		hornblende	conventional K-Ar	KA 1601-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	0.928		88			age of intrusion	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7680	1	76.9		biotite	conventional K-Ar	KA 1673	"4.72E-04, 0.584E-04, 1.19E-04"	8.909		95			age not evaluated	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7681	1	61		biotite	conventional K-Ar	KA 1680	"4.72E-04, 0.584E-04, 1.19E-04"	7.926		91			age not evaluated	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7681	2	71.5		hornblende	conventional K-Ar	KA 1680-HBD	"4.72E-04, 0.584E-04, 1.19E-04"	1.274		58			age not evaluated	"-28 +60 MESH SIZE, HAND-PICKED MATERIAL"		
7682	1	82.4		biotite	conventional K-Ar	BKA 556	"4.72E-04, 0.584E-04, 1.19E-04"	8.218		88			age of intrusion	-60 +80 MESH SIZE		
7683	1	48.8		biotite	conventional K-Ar	KA 822	"4.72E-04, 0.584E-04, 1.19E-04"	7.93		53						AGE PROBABLY TOO YOUNG
7684	1	86.6		biotite	conventional K-Ar	KA 1562	"4.72E-04, 0.584E-04, 1.19E-04"	8.648		92			age of intrusion	"-16 +28 MESH SIZE, HAND-PICKED MATERIAL"		
7736	1	11.1	0.2	sanidine	conventional K-Ar	1. JMP-1	"4.962E-04, 0.581E-04, 1.1167E-04"	6.23	1.002	70			age of volcanism			
7737	1	11.4	0.6	sanidine	conventional K-Ar	2. RYN-1	"4.962E-04, 0.581E-04, 1.1167E-04"	9.21	1.522	44			age of volcanism			
7738	1	10.97	0.7	sanidine	conventional K-Ar	3. BN-A	"4.72E-04, 0.585E-04, 1.19E-04*"	7.85	1.244	38			age of volcanism			
7739	1	14.2	0.4	sanidine	conventional K-Ar	4. PS-1	"4.962E-04, 0.581E-04, 1.1167E-04"	7.86	1.612	60			age of volcanism			
7740	1	13.5	0.2	sanidine	conventional K-Ar	5. PS-A	"4.962E-04, 0.581E-04, 1.1167E-04"	1.8675	75				age of volcanism	9.6		
7741	1	12	0.2	sanidine	conventional K-Ar	6. PS-C	"4.962E-04, 0.581E-04, 1.1167E-04"	9.62	1.663	76			age of volcanism			
7742	1	10	1.5	plagioclase	conventional K-Ar	7. JK-4	"4.962E-04, 0.581E-04, 1.1167E-04"	1.3655	0.1967	20			age of volcanism		"K2O = 1.362, 1.369"	
7743	1	9.6	2	plagioclase	conventional K-Ar	8. JK-B	"4.962E-04, 0.581E-04, 1.1167E-04"	1.523	0.2113	16			age of volcanism			
7744	1	11	0.6	plagioclase	conventional K-Ar	9. BEN-1	"4.962E-04, 0.581E-04, 1.1167E-04"	1.276	0.2023	42			age of volcanism			
7745	1	9.6	0.2	sanidine	conventional K-Ar	10. SF-1	"4.962E-04, 0.581E-04, 1.1167E-04"	8.63	1.19	74			age of volcanism			
7746	1	10.1	0.3	plagioclase	conventional K-Ar	11. W-194	"4.962E-04, 0.581E-04, 1.1167E-04"	0.983	0.1439	67			age of volcanism		K = 0.816 %	
7747	1	11	1.3	plagioclase	conventional K-Ar	12. CAS-6	"4.962E-04, 0.581E-04, 1.1167E-04"	0.87	0.1384	25						AGE IS APPARENTLY TOO OLD
7748	1	10.1	0.1	sanidine	conventional K-Ar	13. CAS-1	"4.962E-04, 0.581E-04, 1.1167E-04"	9.46	1.381	81			age of volcanism			
7749	1	8.1	0.7	whole rock	conventional K-Ar	14. SRP70-11	"4.962E-04, 0.581E-04, 1.1167E-04"	0.358	0.412	11					K = 0.297 %	AGE APPARENTLY TOO LOW; BEST ESTIMATE IS 9.4 M.Y. OLD FOR BASALT; PREVIOUS K-AR AGE OF 13.8 M.Y. REPORTED BY ARMSTRONG AND OTHERS (1975).
7750	1	44.7	0.8	biotite	conventional K-Ar	PC-RHYODACITE	"4.962E-04, 0.581E-04, 1.1167E-04"	8.19	5.338	74			age of volcanism			
7751	1	3.8	0.2	whole rock	conventional K-Ar	1. SPR 70-16	"4.962E-04, 0.581E-04, 1.1167E-04"	0.657	0.0361	19					K=0.545%	"AGE OF BASALT IS PROBABLY 4-5 M.Y. OLD; AN AGE OF 6.0 M.Y. PREVIOUSLY REPORTED FOR THIS SAMPLE (ARMSTRONG AND OTHERS, 1975)."
7752	1	4.2	0.2	whole rock	conventional K-Ar	2. DG-9	"4.962E-04, 0.581E-04, 1.1167E-04"	0.83	0.0507	27					K=0.689%	BASALT IS PROBABLY ABOUT 4 M.Y. OLD.
7753	1	2.6	0.3	whole rock	conventional K-Ar	3. SRP 69-55	"4.962E-04, 0.581E-04, 1.1167E-04"	0.373	0.0137	8					K=0.310%	AGE OF BASALT IS APPROXIMATELY 4 M.Y.; AGE OF 6.3 M.Y. PREVIOUSLY REPORTED FOR THIS SAMPLE BY ARMSTRONG AND OTHERS (1975).
7754	1	3.6	0.2	whole rock	conventional K-Ar	4. SRD-1	"4.962E-04, 0.581E-04, 1.1167E-04"	1.034	0.0541	35					K=0.858%	AGE OF BASALT IS APPROXIMATELY 4 M.Y.
7755	1	0.2	0.2	whole rock	conventional K-Ar	1. B-132	"4.962E-04, 0.581E-04, 1.1167E-04"	0.676	0.0023	1			age of volcanism		K=0.561%	
7756	1	2.3	0.1	whole rock	conventional K-Ar	2. B-144	"4.962E-04, 0.581E-04, 1.1167E-04"	5.16	0.1691	49			age of volcanism		K=4.28%	
7757	1	2.3	0.1	whole rock	conventional K-Ar	3. B-126A	"4.962E-04, 0.581E-04, 1.1167E-04"	5.2	0.1715	37			age of volcanism		K=4.32%	
7758	1	2.1	0.1	sanidine	conventional K-Ar	4. B-88C	"4.962E-04, 0.581E-04, 1.1167E-04"	7.1	0.219	53			age of volcanism		K=5.89%	
7759	1	2.5	0.5	whole rock	conventional K-Ar	5. B-168	"4.962E-04, 0.581E-04, 1.1167E-04"	0.467	0.0171	4			age of volcanism		K=0.388%	
7760	1	3.1	0.2	whole rock	conventional K-Ar	6. B-135	"4.962E-04, 0.581E-04, 1.1167E-04"	0.314	0.0142	12			age of volcanism		K=0.261%	
7761	1	4.3	0.15	whole rock	conventional K-Ar	7. B-189	"4.962E-04, 0.581E-04, 1.1167E-04"	5.16	0.3178	48			age of volcanism		K=4.28%	
7762	1	6.3	0.2	whole rock	conventional K-Ar	8. B-243	"4.962E-04, 0.581E-04, 1.1167E-04"	1.31	0.1197	69			age of volcanism		K=1.09%	
7763	1	54.18	2	biotite	conventional K-Ar	1. NR-1	"4.72E-04, 0.585E-04, 1.19E-04*"	6.614	5.237	51			age of volcanism		K=5.490%	
7764	1	48.99	1.8	biotite	conventional K-Ar	2. CM-2	"4.72E-04, 0.585E-04, 1.19E-04*"	7.663	5.479	43			age of volcanism		K=6.361%	
7764	2	48.99	2.1	feldspar	conventional K-Ar	2. CM-2	"4.72E-04, 0.585E-04, 1.19E-04*"	1.961	1.402	19			age of volcanism	APPEARS TO BE A MIXTURE OF K-FELDSPAR AND PLAGIOCLASE	K=1.628%	
7765	1	47.32	2	whole rock	conventional K-Ar	3. CC-1	"4.72E-04, 0.585E-04, 1.19E-04*"	2.78	1.919	65			age of volcanism		K=2.308%	
7766	1	45.96	1.6	whole rock	conventional K-Ar	4. BM-1	"4.72E-04, 0.585E-04, 1.19E-04*"	2.09	1.4006	85			age of volcanism		K=1.735%	
7767	1	22.1	0.6	sanidine	conventional K-Ar	1. SQ17	"4.962E-04, 0.581E-04, 1.1167E-04"	4.39	1.403	58						AUTHORS THINK THAT THE AGE SHOULD BE ABOUT 24 M.Y.
7768	1	20.6	0.6	biotite	conventional K-Ar	2. SQ19	"4.962E-04, 0.581E-04, 1.1167E-04"	7.25	2.1145	2928					40AR-RAD=2.108 AND 2.221 X E-10 MOL/GM	AUTHORS THINK THAT THE AGE SHOULD BE 22 OR 23 M.Y.
7769	1	22.6	0.7	biotite	conventional K-Ar	3. SQ13	"4.962E-04, 0.581E-04, 1.1167E-04"	8.56	2.796	68			age of volcanism		"K20=8.75, 8.47, 8.46%"	
7770	1	26.7	0.8	biotite	conventional K-Ar	4. SQ29	"4.962E-04, 0.581E-04, 1.1167E-04"	8.34	3.144	64			age not evaluated			
7771	1	26.3	0.8	hornblende	conventional K-Ar	5. SQ21	"4.962E-04, 0.581E-04, 1.1167E-04"	0.953	0.363	47			age of volcanism			
7771	2	26.6	0.8	biotite	conventional K-Ar	5. SQ21	"4.962E-04, 0.581E-04, 1.1167E-04"	6.88	2.652	75			age of volcanism			
7772	1	26.6	0.8	biotite	conventional K-Ar	6. SQ18	"4.962E-04, 0.581E-04, 1.1167E-04"	8.18	3.156	71			age of volcanism			
7773	1	27.4	0.8	biotite	conventional K-Ar	7. SQ15	"4.962E-04, 0.581E-04, 1.1167E-04"	7.05	2.803	80			age of volcanism			
7773	2	25.7	0.8	plagioclase	conventional K-Ar	7. SQ15	"4.962E-04, 0.581E-04, 1.1167E-04"	0.652	0.2422	68						"AGE IS TOO YOUNG, SEE BIOTITE AGE."
7774	1	7.5	0.4	whole rock	conventional K-Ar	8. SQ16	"4.962E-04, 0.581E-04, 1.1167E-04"	1.29	0.1397	26			age of volcanism			
7775	1	10	7.5	plagioclase	conventional K-Ar	9. SQ24	"4.962E-04, 0.581E-04, 1.1167E-04"	0.31	4.339	1			age not evaluated		HIGH ANALYTICAL UNCERTAINTY	
7776	1	14.1	2.3	plagioclase	conventional K-Ar	10. SQ34	"4.962E-04, 0.581E-04, 1.1167E-04"	0.771	0.1524	7			age of volcanism			
7777	1	14.3	0.4	hornblende	conventional K-Ar	11. SQ10	"4.962E-04, 0.581E-04, 1.1167E-04"	0.793	0.1637	58			age of intrusion			
7778	1	14	0.4	hornblende	conventional K-Ar	12. SQ14	"4.962E-04, 0.581E-04, 1.1167E-04"	0.835	0.1689	55			age of volcanism			
7779	1	117	4	hornblende	conventional K-Ar	13. SQ11	"4.962E-04, 0.581E-04, 1.1167E-04"	1.14	1.969	76			minimum age of intrusion			
7779	2	81	2.4	biotite	conventional K-Ar	13. SQ11	"4.962E-04, 0.581E-04, 1.1167E-04"	5.7	6.793	86			initial age disturbed by later metamorphism			
7780	1	158	5	hornblende	conventional K-Ar	14. SQ22	"4.962E-04, 0.581E-04, 1.1167E-04"	0.661	1.566	83			minimum age of intrusion			
7780	2	103	3	biotite	conventional K-Ar	14. SQ22	"4.962E-04, 0.581E-04, 1.1167E-04"	8.31	12.62	92			initial age disturbed by later metamorphism			
7781	1	143	4	biotite	conventional K-Ar	15. SQ38	"4.962E-04, 0.581E-04, 1.1167E-04"	8.28	17.71	94			initial age disturbed by later metamorphism			
7782	1	148	4	hornblende	conventional K-Ar	16. AD44	"4.962E-04, 0.581E-04, 1.1167E-04"	0.673	1.492	92			age of intrusion			
7783	1	138	4	hornblende	conventional K-Ar	17. AD47	"4.962E-04, 0.581E-04, 1.1167E-04"	0.956	1.98	91			minimum age of intrusion			
7783	2	81.9	2.5	Unk	conventional K-Ar	17. AD47	"4.962E-04, 0.581E-04, 1.1167E-04"	7.87	9.485	87			initial age disturbed by later metamorphism			
7798	5			Unk			no decay constants given						age of volcanism			
7806	1	82.81		biotite	conventional K-Ar	I-2031	"4.72E-04, 0.584E-04, 1.19E-04*"	9.23	11.261	93			minimum age of intrusion			
7807	1	76.8		biotite	conventional K-Ar	W-90	"4.72E-04, 0.584E-04, 1.19E-04*"	9.32	10.528	75						AGE MAY BE LOW; 81 M.Y. GIVEN BY ANOTHER BIOTITE SEPARATE
7808	1	126.14		biotite	conventional K-Ar	I-2107	"4.72E-04, 0.584E-04, 1.19E-04*"	7.7	14.484	95			minimum age of intrusion			
7809	1	159.18		biotite	conventional K-Ar	W-53	"4.72E-04, 0.584E-04, 1.19E-04*"	7.12	17.058	91			minimum age of intrusion			MAY BE A REDUCED AGE
7810	1	160.64		biotite	conventional K-Ar	I-305	"4.72E-04, 0.584E-04, 1.19E-04*"	8.35	20.197	97			minimum age of intrusion			MAY BE A REDUCED AGE
7830	1	1635.47		biotite	conventional K-Ar	6	"4.72E-04, 0.584E-04, 1.19E-04*"	9.64	369.5	75			age of later metamorphism		K = 8.00 %	
7831	1	1815.07		biotite	conventional K-Ar	9	"4.72E-04, 0.584E-04, 1.19E-04*"	9.05	407.8	46			initial age disturbed by later metamorphism		K = 7.51 %	
7832	1	1766.32		biotite	conventional K-Ar	10	"4.72E-04, 0.584E-04, 1.19E-04*"	9.22	398	56			initial age disturbed by later metamorphism		K = 7.65 %	
7833	1	2258.41		biotite	conventional K-Ar	11	"4.72E-04, 0.584E-04, 1.19E-04*"	9.24	599.2	67			initial age disturbed by later metamorphism		K = 7.67 %	
7834	1	2150		biotite	conventional K-Ar	14	"4.72E-04, 0.584E-04, 1.19E-04"						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	
7835	1	2160		muscovite	conventional K-Ar	18	"4.72E-04, 0.584E-04, 1.19E-04"						initial age disturbed by later metamorphism		NO ANALYTICAL DATA GIVEN	
7836	1	1921.28		muscovite	conventional K-Ar	20	"4.72E-04, 0.584E-04, 1.19E-04*"	9.97	492.2	52			initial age disturbed by later metamorphism		K = 8.28 %	
7837	1	1822.93		muscovite	conventional K-Ar	22	"4.72E-04, 0.584E-04, 1.19E-04*"	8.36	379.3	46			initial age disturbed by later metamorphism		K = 6.94 %	
7838	1	5581.98		enstatite	conventional K-Ar	DS-1	"4.72E-04, 0.584E-04, 1.19E-04*"	0.0053	2.9	89				99.9 % PURE BRONZITE CONCENTRATE	K = 0.0044 %	AGE TOO OLD; EXCESS ARGON PRESENT
7839	1	3967.35		enstatite	conventional K-Ar	DS-4	"4.72E-04, 0.584E-04, 1.19E-04*"	0.0045	0.937	83				99.9 % PURE BRONZITE CONCENTRATE	K = 0.0037 %	AGE TOO OLD; EXCESS ARGON PRESENT
7840	1	6013.71		enstatite	conventional K-Ar	DS-5	"4.72E-04, 0.584E-04, 1.19E-04*"	0.0094	6.6	9595				98 % PURE BRONZITE CONCENTRATE	K = 0.0078 %; 40 AR = 6.74 AND 6.47 X E(-10) MOL/GM.	AGE IS TOO OLD; EXCESS ARGON PRESENT.
7840	2	2450.7		biotite	conventional K-Ar	DS-5	"4.72E-04, 0.584E-04, 1.19E-04*"	7.9	593	97			initial age disturbed by later metamorphism	95 % PURE BIOTITE CONCENTRATE	K = 6.56 %	
7841	1	2579.25		biotite	conventional K-Ar	DS-6	"4.72E-04, 0.584E-04, 1.19E-04*"	7.84	647	99			initial age disturbed by later metamorphism	98 % PURE BIOTITE CONCENTRATE	K = 6.51 %	
7842	1	5209.53		hypersthene	conventional K-Ar	BG-61-65	"4.72E-04, 0.584E-04, 1.19E-04*"	0.0077	3.39	99				99 % PURE HYPERSTHENE CONCENTRATE	K = 0.0064 %; 40 AR = 3.36 AND 3.4 X E(-10) MOL/GM.	AGE IS TOO OLD; EXCESS ARGON PRESENT
7842	2	1926.17	90	plagioclase	conventional K-Ar	BG-61-65	"4.72E-04, 0.584E-04, 1.19E-04*"	0.1053	5.22	92			initial age disturbed by later metamorphism	99.9 % PURE PLAGIOCLASE CONCENTRATE	K = 0.0874 %	
7843	1	2.15	0.1	whole rock	conventional K-Ar	1. 128-0 A	"4.962E-04, 0.581E-04, 1.1167E-04"	2.26	0.0717	30			minimum age of volcanism		"K2O = 2.25, 2.27 %"	
7843	2	2.52	0.19	plagioclase	conventional K-Ar	1. 128-0 B	"4.962E-04, 0.581E-04, 1.1167E-04"	0.841	0.0314	17			age of volcanism	AN 58-62 PLAGIOCLASE	"K2O = 0.845, 0.837 %"	
7843	3	2.55	0.11	K feldspar	conventional K-Ar	1. 128-0 D	"4.962E-04, 0.581E-04, 1.1167E-04"	2.69	0.1014	27			age of volcanism	AN ALKALI FELDSPAR AND PLAGIOCLASE MIXTURE	"K2O = 2.68, 2.70 %"	
7843	4	2.53	0.1	K feldspar	conventional K-Ar	1. 128-0 E	"4.962E-04, 0.581E-04, 1.1167E-04"	3.66	0.1369	27			age of volcanism		"K2O = 3.65, 3.67 %"	
7844	1	1.1	0.11	adularia	conventional K-Ar	2. GS-6-100	"4.962E-04, 0.581E-04, 1.1167E-04"	9.995	0.1623	86					"K2O = 10.07, 10.07, 9.93, 9.02 %; 40 AR-RAD = 0.1453 AND 0.1792 X E(-10) MOL/GM."	MINIMUM AGE FOR HYDROTHERMAL ALTERATION
7845	1	1.14	0.05	sanidine	conventional K-Ar	3. SR-1	"4.962E-04, 0.581E-04, 1.1167E-04"	9.04	0.1525	48			age of volcanism		"K2O = 9.06, 9.02 %"	
7846	1	1.21	0.06	sanidine	conventional K-Ar	4. SR-4	"4.962E-04, 0.581E-04, 1.1167E-04"	10.53	0.1893	33			age of volcanism		"K2O = 10.53, 10.53 %"	
7847	1	1.16	0.05	sanidine	conventional K-Ar	5. SR-5	"4.962E-04, 0.581E-04, 1.1167E-04"	10.535	0.1801	51			age of volcanism			
7847	2	3.03	0.12	glass	conventional K-Ar	5. SR-5A	"4.962E-04, 0.581E-04, 1.1167E-04"	4.677	0.2094	78					"K2O = 4.40, 4.38, 4.96, AND 4.97 %"	"AGE IS TOO OLD, EXCESS ARGON PROBABLY PRESENT"
7848	1	2.97	0.09	glass	conventional K-Ar	941-B	"4.962E-04, 0.581E-04, 1.1167E-04"	4.72	0.2076	4561					"K2O = 4.85, 4.80, 4.63, 4.63 %"	AGE IS TOO OLD; EXCESS ARGON PROBABLY PRESENT
7849	1	1.51	0.22	K feldspar	conventional K-Ar	6. SR-3	"4.962E-04, 0.581E-04, 1.1167E-04"	2.255	0.0502	14			age of volcanism		"K2O = 2.27, 2.24 %"	
7849	2	1.51	0.06	glass	conventional K-Ar	6. SR-3A	"4.962E-04, 0.581E-04, 1.1167E-04"	4.42	0.0987	27			age of volcanism		"K2O = 4.43, 4.29, 4.58, 4.38 %"	
7850	1	82	0.3	plagioclase	conventional K-Ar	7.MR-2	"4.962E-04, 0.581E-04, 1.1167E-04"	1.039	0.1261	34			age of volcanism		"K20=1.039, 1.039%"	
7851	1	10.9	0.3	biotite	conventional K-Ar	8. C-3	"4.962E-04, 0.581E-04, 1.1167E-04"	7.705	1.2485	3443			age of volcanism		"K20=7.69, 7.72%; 40AR-RAD=1.275 AND 1.222 X E-10 MOL/GM"	
7851	2	9.7	0.3	plagioclase	conventional K-Ar	8. C-3A	"4.962E-04, 0.581E-04, 1.1167E-04"	0.0813	0.1186	42			minimum age of volcanism		"K20=0.812, 0.813%"	
7852	1	1242	50	muscovite	conventional K-Ar	471	"4.962E-04, 0.581E-04, 1.1167E-04"	8.78	226	98				-100 +140 MESH SIZE		"AGE OF DETRITAL MUSCOVITE, NOT THE AGE OF PIOCHE SHALE."
7853	1	87.4	2.2	biotite	conventional K-Ar	478	"4.962E-04, 0.581E-04, 1.1167E-04"	10.99	14.16	95			maximum age of metamorphic crystallization			
7854	1	51.1	1.4	muscovite	conventional K-Ar	501	"4.962E-04, 0.581E-04, 1.1167E-04"	10.79	8.056	92						MAY BE A AYBRID AGE
7854	2	43.3	1.6	biotite	conventional K-Ar	501	"4.962E-04, 0.581E-04, 1.1167E-04"	9.41	5.94	82						PROBABLY A HYBRID AGE
7855	1	57.1	1.7	muscovite	conventional K-Ar	503	"4.962E-04, 0.581E-04, 1.1167E-04"	10.86	9.062	90				-60 +100 MESH SIZE		PROBABLY A HYBRID AGE
7856	1	54.1	1.7	muscovite	conventional K-Ar	505	"4.962E-04, 0.581E-04, 1.1167E-04"	11.03	8.712	63						PROBABLY A HYBRID AGE
7857	1	55.2	1.5	muscovite	conventional K-Ar	506	"4.962E-04, 0.581E-04, 1.1167E-04"	11.02	8.895	90						PROBABLY A HYBRID AGE
7857	2	50.2	2.1	biotite	conventional K-Ar	506	"4.962E-04, 0.581E-04, 1.1167E-04"	7.42	5.44	90						PROBABLY A HYBRID AGE
7858	1	20.8	0.5	muscovite	conventional K-Ar	547	"4.962E-04, 0.581E-04, 1.1167E-04"	10.54	3.177	67				-30 +60 MESH SIZE		A HYBRID AGE
7859	1	22.7	0.5	muscovite	conventional K-Ar	548	"4.962E-04, 0.581E-04, 1.1167E-04"	10.8	3.545	71				-60 +100 MESH		A HYBRID AGE
7859	2	22.5	0.5	muscovite	conventional K-Ar	548	"4.962E-04, 0.581E-04, 1.1167E-04"	10.8	3.522	75				-60 +100 MESH; MUSCOVITE SUBJECT TO ONE HOUR OF ULTRASONIC VIBRATION.		A HYBRID AGE
7860	1	30.5	1	muscovite	conventional K-Ar	549	"4.962E-04, 0.581E-04, 1.1167E-04"	7.18	3.177	48				-60 +140 MESH; SPECIFIC GRAVITY LESS THAN 2.86		A HYBRID AGE; MUSCOVITE APPEARS TO BE LESS RETENTIVE OF RADIOGENIC AGRON THAN COEXISTING BIOTITE; MAY BE DUE TO LOW-POTASSIUM INDUCED UNIT-CELL STRAIN
7860	2	30.4	1	muscovite	conventional K-Ar	549	"4.962E-04, 0.581E-04, 1.1167E-04"	7.12	3.142	35				-60 +140 MESH; SPECIFIC GRAVITY GREATER THAN 2.86		A HYBRID AGE
7860	3	47.1	1.6	biotite	conventional K-Ar	549	"4.962E-04, 0.581E-04, 1.1167E-04"	9.07	6.234	86				-60 +100 MESH		A HYBRID AGE
7861	1	40.7	1.4	muscovite	conventional K-Ar	558	"4.962E-04, 0.581E-04, 1.1167E-04"	9.99	5.924	83				-60 +140 MESH		A HYBRID AGE
7862	1	30.7	1	biotite	conventional K-Ar	560	"4.962E-04, 0.581E-04, 1.1167E-04"	8.73	3.895	84				-60 +140 MESH		A PROBABLE HYBRID AGE
7863	1	36.9	0.8	muscovite	conventional K-Ar	561	"4.962E-04, 0.581E-04, 1.1167E-04"	10.69	5.731	74				-60 +100 MESH		A HYBRID AGE
7864	1	36.5	0.8	muscovite	conventional K-Ar	562	"4.962E-04, 0.581E-04, 1.1167E-04"	10.56	5.602	68				-60 +140 MESH		A HYBRID AGE
7865	1	69.2	1.6	muscovite	conventional K-Ar	RM-1	"4.962E-04, 0.581E-04, 1.1167E-04"	10.07	10.22	69			minimum age of intrusion	"-10 +30 MESH, VERY COARSE MUSCOVITE"		
7866	1	50.9	1.8	muscovite	conventional K-Ar	244	"4.962E-04, 0.581E-04, 1.1167E-04"	10.78	8.012	56						A HYBRID AGE
7867	1	47.9	2	muscovite	conventional K-Ar	245	"4.962E-04, 0.581E-04, 1.1167E-04"	10.79	7.545	45						A HYBRID AGE
7868	1	24.7	1.1	muscovite	conventional K-Ar	564	"4.962E-04, 0.581E-04, 1.1167E-04"	6.31	2.264	83				MUSCOVITE + QUARTZ MIXTURE		A HYBRID AGE DUE TO MOVEMENT OF UPPER THRUST PLATE
7869	1	28.6	2.5	biotite	conventional K-Ar	566	"4.962E-04, 0.581E-04, 1.1167E-04"	6.63	2.754	56			minimum age of intrusion	BIOTITE + QUARTZ MIXTURE		
7869	2	34.3	1.1	amphiboles	conventional K-Ar	566	"4.962E-04, 0.581E-04, 1.1167E-04"	0.553	0.2752	61			age of intrusion		POTASSIUM DETERMINED BY ISOTOPE DILUTION	
7870	1	25.5	0.9	biotite	conventional K-Ar	567	"4.962E-04, 0.581E-04, 1.1167E-04"	8.22	3.04	82				BIOTITE + QUARTZ MIXTURE		A HYBRID AGE DUE TO MOVEMENT OF UPPER THRUST PLATE
7871	1	108	4	muscovite	conventional K-Ar	472	"4.962E-04, 0.581E-04, 1.1167E-04"	7.62	12.21	94				MUSCOVITE AND QUARTZ MIXTURE		A HYBRID AGE DUE TO MIXTURE OF DETRITAL AND METAMORPHIC MUSCOVITE
7872	1	437	16	muscovite	conventional K-Ar	473	"4.962E-04, 0.581E-04, 1.1167E-04"	9.16	65.26	93				-100 +200 MESH; MUSCOVITE AND QUARTZ MIXTURE		PROBABLY A REDUCED AGE COMING MAINLY FROM THE DETRITAL MUSCOVITE
7873	1	105	4	muscovite	conventional K-Ar	476	"4.962E-04, 0.581E-04, 1.1167E-04"	8.56	13.27	91				MUSCOVITE + QUARTZ MIXTURE		A HYBRID AGE DUE TO MIXTURE OF DETRITAL AND METAMORPHIC MUSCOVITE
7874	1	183	6	muscovite	conventional K-Ar	499	"4.962E-04, 0.581E-04, 1.1167E-04"	8.39	23.24	97				MUSCOVITE + QUARTZ MIXTURE		A HYBRID AGE DUE TO MIXTURE OF DETRITAL AND METAMORPHIC MUSCOVITE
7875	1	73.8	2.4	muscovite	conventional K-Ar	536	"4.962E-04, 0.581E-04, 1.1167E-04"	6.92	7.503	87			age of metamorphic crystallization	MUSCOVITE + QUARTZ		
7876	1	307	7	muscovite	conventional K-Ar	552	"4.962E-04, 0.581E-04, 1.1167E-04"	5.82	28.01	96				MUSCOVITE + QUARTZ MIXTURE		A PROBABLE HYBRID AGE DUE TO THE PRESENCE OF BOTH DETRITAL AND METAMORPHIC MUSCOVITE
7877	1	99.3	3.3	muscovite	conventional K-Ar	554	"4.962E-04, 0.581E-04, 1.1167E-04"	9	13.22	92				MUSCOVITE + QUARTZ MIXTURE		A PROBABLE HYBRID AGE DUE TO THE PRESENCE OF BOTH DETRITAL AND METAMORPHIC MUSCOVITE.
7878	1	141	5	muscovite	conventional K-Ar	555	"4.962E-04, 0.581E-04, 1.1167E-04"	9.91	20.97	97				MUSCOVITE + QUARTZ MIXTURE		A PROBABLE HYBRID AGE DUE TO THE PRESENCE OF BOTH DETRITAL AND METAMORPHIC MUSCOVITE.
7879	1	196	7	sericite	conventional K-Ar	2-MW-60	"4.962E-04, 0.581E-04, 1.1167E-04"	8.48	25.3	98						AGE MAY INDICATE TIME OF MINERALIZATION OR THE AGE MAY BE TOO OLD DUE TO EXCESS ARGON.
7880	1	86.3	1.9	muscovite	conventional K-Ar	378	"4.962E-04, 0.581E-04, 1.1167E-04"	10.72	13.67	88				-100 +200 MESH		AGE MAY BE 1. THE APPROXIMATE AGE OF THE PLUTON OR 2 A REDUCED AGE.
7881	1	82.2	1.8	muscovite	conventional K-Ar	531	"4.962E-04, 0.581E-04, 1.1167E-04"	10.47	12.67	89				-100 +200 MESH		AGE MAY BE 1. THE APPROXIMATE AGE OF THE PLUTON OR 2. A REDUCED AGE.
7882	1	77.9	1.8	muscovite	conventional K-Ar	532	"4.962E-04, 0.581E-04, 1.1167E-04"	10.32	11.83	89				-100 +200 MESH		"AGE MAY BE 1. THE APPROXIMATE AGE OF THE PLUTON, OR 2. A REDUCED AGE."
7883	1	63.6	2.4	muscovite	conventional K-Ar	427	"4.962E-04, 0.581E-04, 1.1167E-04"	10.5	9.792	88				-100 +200 MESH		A HYBRID AGE
7884	1	45.8	1.9	biotite	conventional K-Ar	428	"4.962E-04, 0.581E-04, 1.1167E-04"	8.51	5.68	79				-100 +200 MESH		A HYBRID AGE
7884	2	61.7	2.3	muscovite	conventional K-Ar	428	"4.962E-04, 0.581E-04, 1.1167E-04"	10.36	9.356	85						A HYBRID AGE
7885	1	86.1	2.4	muscovite	conventional K-Ar	430	"4.962E-04, 0.581E-04, 1.1167E-04"	10.48	13.3	90						"A MIXED AGE, CLASTIC AND AUTHIGENIC MUSCOVITE BOTH PRESENT"
7886	1	617	22	muscovite	conventional K-Ar	435	"4.962E-04, 0.581E-04, 1.1167E-04"	8.54	90.37	99				MUSCOVITE + QUARTZ		AGE GIVEN BY DETRITAL MUSCOVITE
7887	1	1177	30	muscovite	conventional K-Ar	571	"4.962E-04, 0.581E-04, 1.1167E-04"	10.09	241.1	99				-60 MESH		AGE OF DETRITAL MUSCOVITE
7888	1	98	2.9	amphiboles	conventional K-Ar	572	"4.962E-04, 0.581E-04, 1.1167E-04"	0.332	0.4815	61			minimum age of intrusion		POTASSIUM DETERMINED BY ISOTOPE DILUTION	
7889	1	90.2	3.1	muscovite	conventional K-Ar	368	"4.962E-04, 0.581E-04, 1.1167E-04"	8.41	11.19	83			age not evaluated	MUSCOVITE + QUARTZ		
7890	1	35.2	1.2	biotite	conventional K-Ar	393	"4.962E-04, 0.581E-04, 1.1167E-04"	8.72	4.463	84			age of intrusion			
7891	1	34.7	1.2	biotite	conventional K-Ar	394	"4.962E-04, 0.581E-04, 1.1167E-04"	8.45	4.26	86			age of intrusion			
7891	2	35.8	0.8	amphiboles	conventional K-Ar	394	"4.962E-04, 0.581E-04, 1.1167E-04"	1.03	0.5356	64			age of intrusion			
7892	1	1199	40	muscovite	conventional K-Ar	538	"4.962E-04, 0.581E-04, 1.1167E-04"	9.86	241.5	99				MUSCOVITE + QUARTZ MIXTURE		"AGE OF DETRITAL MUSCOVITE, NOT TIME OF SHALE FORMATION"
7893	1	66.9	1.5	muscovite	conventional K-Ar	569	"4.962E-04, 0.581E-04, 1.1167E-04"	10.89	10.68	93						A HYBRID AGE
7894	1	1205	29	muscovite	conventional K-Ar	575	"4.962E-04, 0.581E-04, 1.1167E-04"	10.41	256.8	98						AGE OF TH