Spot	 
%
206Pbc	ppm
U	ppm
Th	232Th
/238U	%
Dis-
cor-
dant	4corr
207r
/206r	err	4corr
207r
/235	err	4corr
206r
/238	err	err
corr	(1)
206Pb
/238U
Age	(1)
207Pb
/206Pb
Age	
484-1	2.22	86	79	0.94	2 	0.1098 	±0.0036 	 4.77 	±0.21 	0.3152	±0.0093	.673	1,766	±46	1,796  	± 59  	
484-2	0.32	88	82	0.96	-2 	0.1090 	±0.0021 	 4.89 	±0.17 	0.3255	±0.0096	.838	1,816	±47	1,783  	± 35  	
484-3	0.16	152	52	0.35	3 	0.1820 	±0.0029 	12.45 	±0.42 	0.496 	±0.014 	.875	2,597	±62	2,671  	± 27  	
484-4	0.09	99	67	0.69	-2 	0.1968 	±0.0014 	15.11 	±0.45 	0.557 	±0.016 	.970	2,854	±67	2,800  	± 12  	
484-5	0.17	108	130	1.24	5 	0.1881 	±0.0016 	12.79 	±0.39 	0.493 	±0.014 	.958	2,584	±62	2,726  	± 14  	
484-6	0.42	139	48	0.36	-1 	0.1148 	±0.0019 	 5.38 	±0.18 	0.3399	±0.0098	.869	1,886	±47	1,877  	± 30  	
484-7	0.28	344	17	0.05	9 	0.11306	±0.00093	 4.64 	±0.14 	0.2980	±0.0084	.960	1,681	±42	1,849  	± 15  	
484-8	0.04	163	73	0.46	3 	0.1173 	±0.0011 	 5.42 	±0.16 	0.3352	±0.0096	.951	1,863	±46	1,915  	± 17  	
484-9	1.28	68	52	0.78	-18 	0.0695 	±0.0050 	 1.75 	±0.14 	0.1821	±0.0056	.397	1,078	±31	  915  	±150  	
484-10	-- 	67	21	0.33	-1 	0.2161 	±0.0017 	17.58 	±0.54 	0.590 	±0.018 	.968	2,991	±72	2,952  	± 13  	
484-11	0.30	108	29	0.28	1 	0.1156 	±0.0020 	 5.38 	±0.18 	0.3372	±0.0099	.859	1,873	±48	1,890  	± 31  	
484-12	0.15	167	91	0.56	4 	0.1946 	±0.0013 	13.86 	±0.41 	0.516 	±0.015 	.975	2,684	±63	2,782  	± 11  	
484-13	0.09	233	74	0.33	1 	0.18575	±0.00099	13.16 	±0.38 	0.514 	±0.015 	.983	2,672	±62	2,705	±  8.8	
484-14	1.65	27	34	1.32	-6 	0.1055 	±0.0053 	 4.78 	±0.29 	0.329 	±0.011 	.562	1,832	±54	1,724  	± 92  	
484-15	0.61	139	53	0.40	3 	0.1863 	±0.0020 	12.88 	±0.39 	0.502 	±0.014 	.938	2,620	±62	2,710  	± 17  	
484-16	0.41	103	119	1.20	5 	0.1749 	±0.0016 	11.24 	±0.34 	0.466 	±0.014 	.952	2,467	±60	2,605  	± 16  	
484-17	0.15	109	136	1.30	3 	0.1941 	±0.0016 	13.87 	±0.42 	0.518 	±0.015 	.964	2,692	±64	2,777  	± 13  	
484-18	0.96	71	85	1.23	8 	0.1062 	±0.0034 	 4.13 	±0.18 	0.2822	±0.0087	.694	1,602	±44	1,735  	± 58  	
484-19	0.66	50	77	1.60	0 	0.1990 	±0.0027 	14.98 	±0.52 	0.546 	±0.017 	.921	2,809	±72	2,818  	± 22  	
484-20	0.71	38	35	0.95	-3 	0.1924 	±0.0033 	14.74 	±0.58 	0.556 	±0.020 	.900	2,849	±82	2,763  	± 28  	
484-21	0.05	89	43	0.50	1 	0.1896 	±0.0014 	13.63 	±0.41 	0.521 	±0.015 	.969	2,704	±65	2,739  	± 12  	
484-22	0.12	95	41	0.45	1 	0.1863 	±0.0014 	13.32 	±0.40 	0.519 	±0.015 	.967	2,694	±64	2,710  	± 13  	
484-23	0.15	216	99	0.47	1 	0.1844 	±0.0010 	13.09 	±0.38 	0.515 	±0.015 	.982	2,676	±62	2,693	±  9.0	
																	
 Spot	 
%
206Pbc	ppm
U	ppm
Th	232Th
/238U	%
Dis-
cor-
dant	4corr
207r
/206r	err	4corr
207r
/235	err	4corr
206r
/238	err	err
corr	(1)
206Pb
/238U
Age	(1)
207Pb
/206Pb
Age	
484-24	-- 	106	144	1.40	0 	0.1150 	±0.0012 	 5.40 	±0.17 	0.3403	±0.0099	.944	1,888	±48	1,880  	± 18  	
484-25	0.19	90	74	0.85	1 	0.2207 	±0.0016 	17.60 	±0.53 	0.578 	±0.017 	.971	2,942	±69	2,986  	± 12  	
484-26	0.38	107	49	0.47	4 	0.1987 	±0.0021 	14.31 	±0.44 	0.522 	±0.015 	.939	2,709	±64	2,816  	± 17  	
484-27	0.30	142	95	0.69	4 	0.1842 	±0.0018 	12.60 	±0.38 	0.496 	±0.014 	.947	2,597	±62	2,691  	± 16  	
484-28	0.20	68	133	2.02	3 	0.1892 	±0.0025 	13.32 	±0.44 	0.511 	±0.015 	.918	2,660	±66	2,735  	± 21  	
484-29	0.25	132	32	0.25	2 	0.1170 	±0.0016 	 5.47 	±0.17 	0.3388	±0.0098	.908	1,881	±47	1,911  	± 24  	
484-30	0.22	221	68	0.32	0 	0.1847 	±0.0012 	13.20 	±0.38 	0.518 	±0.015 	.973	2,692	±62	2,696  	± 11  	
484-31	0.22	114	64	0.58	4 	0.1199 	±0.0019 	 5.59 	±0.19 	0.338 	±0.010 	.888	1,878	±49	1,955  	± 28  	
484-32	0.36	91	99	1.12	-3 	0.1110 	±0.0017 	 5.15 	±0.17 	0.3364	±0.0099	.890	1,869	±48	1,816  	± 27  	
484-33	0.54	459	209	0.47	33 	0.1701 	±0.0011 	 7.14 	±0.21 	0.3044	±0.0085	.975	1,713	±42	2,559  	± 11  	
484-34	0.07	391	262	0.69	0 	0.11067	±0.00074	 4.94 	±0.14 	0.3238	±0.0090	.973	1,808	±44	1,810  	± 12  	
484-35	0.18	60	54	0.92	10 	0.1924 	±0.0019 	12.40 	±0.39 	0.468 	±0.014 	.951	2,473	±62	2,763  	± 16  	
484-36	0.12	313	115	0.38	0 	0.11372	±0.00077	 5.27 	±0.15 	0.3360	±0.0094	.972	1,867	±45	1,860  	± 12  	
484-37	0.27	153	89	0.60	17 	0.1655 	±0.0015 	 8.77 	±0.26 	0.384 	±0.011 	.955	2,095	±51	2,513  	± 15  	
484-38	0.05	197	15	0.08	-3 	0.17028	±0.00091	11.82 	±0.34 	0.503 	±0.014 	.983	2,628	±61	2,560	±  8.9	
484-39	0.38	42	24	0.60	2 	0.1920 	±0.0026 	13.87 	±0.47 	0.524 	±0.016 	.918	2,715	±69	2,759  	± 22  	
484-40	0.14	97	88	0.94	1 	0.1970 	±0.0014 	14.69 	±0.44 	0.541 	±0.016 	.970	2,787	±66	2,802  	± 12  	
484-41	0.04	195	170	0.90	0 	0.1888 	±0.0010 	13.72 	±0.40 	0.527 	±0.015 	.983	2,729	±63	2,731	±  8.8	
484-42	0.22	221	128	0.60	0 	0.10968	±0.00099	 4.86 	±0.14 	0.3212	±0.0091	.952	1,795	±44	1,794  	± 16  	
484-43	1.34	885	60	0.07	10 	0.0590 	±0.0016 	 0.670	±0.026	0.0823	±0.0023	.719	  510	±14	  568  	± 58  	
484-44	0.11	129	100	0.80	0 	0.1993 	±0.0013 	15.04 	±0.44 	0.547 	±0.016 	.975	2,814	±66	2,820  	± 11  	
484-45	0.52	105	89	0.87	11 	0.1833 	±0.0023 	11.31 	±0.36 	0.447 	±0.013 	.916	2,383	±58	2,683  	± 21  	
484-46	0.20	145	89	0.64	4 	0.1183 	±0.0014 	 5.45 	±0.17 	0.3342	±0.0096	.926	1,859	±46	1,931  	± 21  	
																	
 Spot	 
%
206Pbc	ppm
U	ppm
Th	232Th
/238U	%
Dis-
cor-
dant	4corr
207r
/206r	err	4corr
207r
/235	err	4corr
206r
/238	err	err
corr	(1)
206Pb
/238U
Age	(1)
207Pb
/206Pb
Age	
484-47	1.50	144	64	0.46	17 	0.1960 	±0.0057 	11.68 	±0.48 	0.432 	±0.012 	.702	2,315	±56	2,793  	± 48  	
484-48	0.26	39	38	1.01	4 	0.1879 	±0.0028 	13.04 	±0.47 	0.503 	±0.016 	.910	2,628	±70	2,724  	± 24  	
484-49	1.65	111	41	0.38	1 	0.1322 	±0.0040 	 7.08 	±0.30 	0.388 	±0.012 	.704	2,115	±54	2,127  	± 53  	
484-50	0.80	36	30	0.86	6 	0.1782 	±0.0045 	11.46 	±0.52 	0.466 	±0.017 	.825	2,467	±76	2,637  	± 42  	

Errors are 1-sigma; Pbc and Pb* indicate the common and radiogenic portions, respectively.
Error in Standard calibration was 1.5%
(1) Common Pb corrected using measured 204Pb.