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	
29	6.14	49	27	0.56	-439 	.0496	.0220	1.09	0.49	.1597	.0079	.111	955	44	177	1036	
34	8.13	73	44	0.62	-137 	.0564	.0360	1.46	0.93	.1873	.0094	.078	1107	51	468	1415	
23	8.24	29	23	0.82	-31 	.0627	.0350	1.32	0.74	.1529	.0096	.111	917	53	698	1189	
11	2.45	120	38	0.33	-21 	.0689	.0074	1.74	0.20	.1836	.0075	.354	1086	41	897	222	
43	5.53	78	39	0.52	-28 	.0722	.0255	2.16	0.77	.2170	.0100	.130	1266	53	993	718	
26	3.09	81	40	0.51	-20 	.0750	.0090	2.29	0.29	.2209	.0092	.327	1287	48	1070	242	
24	2.46	114	50	0.45	-4 	.0761	.0087	2.02	0.24	.1928	.0078	.333	1136	42	1096	228	
37	1.09	394	106	0.28	7 	.0772	.0029	1.88	0.10	.1768	.0065	.707	1049	36	1125	74	
45	1.07	330	188	0.59	4 	.0786	.0032	2.06	0.11	.1900	.0071	.679	1121	38	1163	80	
28	2.11	129	67	0.54	11 	.0789	.0079	1.91	0.21	.1760	.0070	.369	1045	38	1169	199	
44	1.12	374	227	0.63	4 	.0792	.0040	2.10	0.13	.1922	.0071	.588	1133	39	1176	101	
22	1.14	149	60	0.42	-6 	.0805	.0044	2.44	0.16	.2197	.0085	.579	1280	45	1209	108	
47	3.34	136	61	0.46	-18 	.0811	.0087	2.80	0.32	.2505	.0099	.344	1441	51	1224	211	
77	1.82	101	120	1.24	8 	.0821	.0078	2.21	0.23	.1952	.0078	.387	1149	42	1249	187	
33	3.84	121	48	0.41	6 	.0828	.0113	2.31	0.33	.2027	.0081	.280	1190	43	1264	268	
15	1.22	126	58	0.48	1 	.0829	.0053	2.46	0.19	.2151	.0086	.526	1256	45	1266	125	
19	2.64	86	61	0.74	15 	.0842	.0094	2.17	0.26	.1871	.0078	.349	1106	42	1298	217	
46	1.81	154	73	0.49	1 	.0890	.0039	2.94	0.18	.2396	.0097	.677	1384	50	1403	84	
27	5.80	29	17	0.60	21 	.0897	.0258	2.35	0.69	.1902	.0102	.183	1122	55	1419	551	
14	0.82	77	32	0.43	7 	.0899	.0025	2.81	0.14	.2267	.0095	.837	1317	50	1422	53	
10	10.07	13	8	0.63	-24 	.0999	.0323	5.04	1.66	.3658	.0231	.191	2009	109	1622	602	
18	5.98	26	3	0.11	8 	.1014	.0215	3.69	0.80	.2639	.0135	.235	1510	69	1650	393	
35	1.18	282	77	0.28	2 	.1070	.0034	4.49	0.22	.3041	.0116	.771	1712	57	1749	58	
																	
 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	
42	0.84	216	126	0.60	1 	.1112	.0031	4.95	0.23	.3230	.0122	.802	1804	59	1819	51	
49	1.31	176	194	1.14	2 	.1119	.0048	4.94	0.28	.3203	.0123	.668	1791	60	1831	77	
39	2.67	92	34	0.38	4 	.1126	.0138	4.92	0.64	.3170	.0132	.322	1775	65	1842	222	
20	1.73	46	54	1.21	17 	.1148	.0080	4.33	0.36	.2739	.0123	.541	1561	62	1876	126	
41	1.95	99	45	0.47	3 	.1166	.0049	5.35	0.31	.3330	.0133	.691	1853	64	1905	75	
76	1.65	55	8	0.15	2 	.1203	.0064	5.78	0.40	.3483	.0152	.634	1926	73	1961	95	
40	1.92	142	104	0.76	3 	.1263	.0078	6.29	0.46	.3614	.0142	.538	1989	67	2047	109	
36	1.53	79	54	0.71	13 	.1272	.0064	5.63	0.37	.3210	.0133	.634	1795	65	2060	89	
38	2.09	111	51	0.47	4 	.1547	.0122	9.16	0.82	.4292	.0182	.473	2302	82	2399	134	
71	2.87	38	48	1.30	-1 	.1584	.0072	10.13	0.65	.4640	.0208	.702	2457	92	2439	77	
72	2.81	49	67	1.40	-1 	.1601	.0067	10.34	0.62	.4684	.0201	.718	2476	88	2457	70	
75	2.53	30	17	0.58	0 	.1620	.0086	10.47	0.74	.4685	.0219	.661	2477	96	2477	90	
48	10.43	16	19	1.26	-12 	.1769	.0269	14.05	2.30	.5759	.0344	.365	2932	141	2624	253	
25	2.92	30	27	0.94	7 	.1776	.0107	11.34	0.87	.4633	.0222	.623	2454	98	2630	100	
21	3.13	38	51	1.38	-2 	.1787	.0074	12.73	0.78	.5165	.0231	.734	2684	98	2641	69	
32	2.95	58	101	1.80	-3 	.1794	.0064	13.01	0.71	.5260	.0220	.761	2724	93	2647	59	
30	1.05	122	38	0.32	11 	.1911	.0034	12.23	0.53	.4641	.0182	.908	2458	80	2752	30	
17	0.99	79	95	1.24	3 	.1924	.0035	13.69	0.60	.5158	.0207	.909	2681	88	2763	30	
79	1.29	52	26	0.53	3 	.1989	.0046	14.46	0.70	.5273	.0223	.878	2730	94	2817	38	
74	3.15	34	21	0.63	4 	.2039	.0090	14.87	0.98	.5290	.0260	.745	2737	110	2858	72	
31	5.13	29	11	0.40	-3 	.2054	.0207	16.38	1.84	.5783	.0289	.446	2942	118	2869	164	
73	1.66	62	67	1.11	10 	.2067	.0081	14.18	0.82	.4975	.0211	.734	2603	91	2880	64	
13	-0.20	51	37	0.75	3 	.2071	.0032	15.48	0.70	.5420	.0230	.941	2792	96	2883	25	
																	
 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	
12	1.39	41	35	0.86	6 	.2087	.0055	15.10	0.78	.5245	.0234	.861	2718	99	2896	43	
78	11.14	10	6	0.55	--	.0000	.0000	0.00	0.00	.1805	.0147	.000	1070	81	--	--	

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.