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	
143-1	0.35	130	145	1.15	4 	.1001	.0022	3.80	0.11	.2752	.0056	.678	1,567	±28	1,626  	± 41  	
143-2	-- 	61	39	0.65	12 	.0829	.0015	2.17	0.06	.1898	.0044	.788	1,120	±24	1,267  	± 35  	
143-3	1.11	129	104	0.83	11 	.0964	.0027	3.20	0.11	.2407	.0049	.584	1,390	±25	1,555  	± 53  	
143-4	6.30	60	24	0.42	-64 	.0585	.0114	1.21	0.24	.1501	.0037	.128	  902	±21	  550  	±420  	
143-5	0.00	175	165	0.98	11 	.1138	.0011	4.59	0.10	.2925	.0058	.903	1,654	±29	1,861  	± 17  	
143-6	0.46	724	377	0.54	11 	.0871	.0008	2.49	0.05	.2075	.0038	.893	1,216	±20	1,363  	± 18  	
143-7	0.10	189	103	0.56	9 	.1043	.0011	3.90	0.09	.2714	.0053	.874	1,548	±27	1,701  	± 20  	
143-8	0.28	90	71	0.82	4 	.0984	.0019	3.64	0.10	.2685	.0057	.745	1,533	±29	1,595  	± 35  	
143-9	2.40	19	4	0.19	-72 	.0551	.0061	0.89	0.10	.1175	.0038	.281	  716	±22	  417  	±250  	
143-10	0.11	111	1779	16.62	2 	.0777	.0012	2.03	0.05	.1895	.0039	.789	1,119	±21	1,140  	± 32  	
143-11	0.07	484	166	0.36	4 	.1000	.0005	3.78	0.07	.2743	.0050	.960	1,562	±25	1,624	± 10	
143-12	0.22	102	102	1.04	3 	.0903	.0015	3.00	0.08	.2408	.0050	.774	1,391	±26	1,431  	± 32  	
143-13	1.29	184	39	0.22	26 	.0884	.0072	2.12	0.18	.1736	.0035	.243	1,032	±19	1,391  	±160  	
143-14	0.01	372	46	0.13	6 	.1004	.0006	3.71	0.07	.2678	.0050	.956	1,529	±25	1,632  	± 11  	
143-15	0.02	345	127	0.38	3 	.1109	.0005	4.81	0.09	.3145	.0058	.967	1,763	±29	1,813	±  9	
143-16	0.09	290	181	0.65	1 	.0939	.0008	3.36	0.07	.2597	.0049	.913	1,488	±25	1,507  	± 16  	
143-17	0.09	512	308	0.62	4 	.0930	.0005	3.18	0.06	.2478	.0045	.964	1,427	±24	1,488	± 10	
143-18	0.85	148	51	0.35	3 	.0981	.0021	3.64	0.10	.2687	.0053	.680	1,534	±27	1,589  	± 40  	
143-19	0.02	68	21	0.33	2 	.1111	.0014	4.90	0.12	.3199	.0070	.860	1,789	±34	1,818  	± 23  	
143-20	0.03	127	112	0.91	4 	.0996	.0010	3.74	0.08	.2722	.0055	.890	1,552	±28	1,617  	± 19  	
143-21	0.01	554	238	0.44	6 	.1096	.0005	4.54	0.09	.3002	.0055	.974	1,692	±27	1,793	±  8	
143-22	0.07	118	53	0.46	6 	.0876	.0011	2.69	0.06	.2229	.0045	.857	1,297	±24	1,373  	± 24  	
143-23	0.18	224	71	0.32	5 	.0850	.0016	2.51	0.07	.2146	.0042	.709	1,253	±22	1,315  	± 37  	
																	
 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	
143-24	0.21	326	355	1.13	2 	.0894	.0010	2.96	0.06	.2401	.0045	.870	1,387	±23	1,413  	± 20  	
143-25	0.24	279	178	0.66	3 	.1100	.0008	4.69	0.10	.3092	.0058	.927	1,737	±29	1,799  	± 14  	
143-26	0.11	152	58	0.40	8 	.1023	.0010	3.80	0.08	.2695	.0053	.887	1,538	±27	1,667  	± 19  	
143-27	-- 	252	83	0.34	1 	.1100	.0007	4.85	0.10	.3198	.0060	.942	1,789	±30	1,799  	± 12  	
143-28	0.07	126	72	0.59	-1 	.0973	.0012	3.76	0.09	.2802	.0058	.860	1,593	±29	1,573  	± 23  	
143-29	0.03	231	126	0.56	-3 	.1085	.0008	4.90	0.10	.3274	.0064	.941	1,826	±31	1,775  	± 13  	
143-30	0.03	985	328	0.34	0 	.1125	.0004	5.15	0.09	.3319	.0060	.984	1,847	±29	1,841	±  6	
143-31	0.03	252	177	0.72	5 	.1018	.0007	3.89	0.08	.2770	.0052	.935	1,576	±26	1,658  	± 13  	
143-32	0.18	1622	784	0.50	7 	.1100	.0003	4.51	0.08	.2971	.0053	.987	1,677	±26	1,799	±  5	
143-33	0.01	128	42	0.34	9 	.0833	.0012	2.26	0.06	.1968	.0040	.824	1,158	±21	1,277  	± 27  	
143-34	0.08	246	154	0.65	2 	.1095	.0007	4.72	0.09	.3125	.0059	.942	1,753	±29	1,791  	± 12  	
143-35	0.02	446	264	0.61	1 	.0993	.0005	3.83	0.07	.2798	.0051	.965	1,591	±26	1,612	±  9	
143-36	0.88	130	46	0.37	6 	.0972	.0019	3.46	0.10	.2578	.0051	.719	1,478	±26	1,572  	± 36  	
143-37	-- 	1496	135	0.09	2 	.0901	.0003	3.01	0.05	.2427	.0043	.987	1,401	±23	1,427	±  6	
143-38	0.05	547	405	0.77	5 	.1031	.0005	4.01	0.08	.2818	.0051	.967	1,600	±26	1,681	±  9	
143-39	0.13	150	84	0.58	1 	.1057	.0009	4.43	0.10	.3042	.0059	.911	1,712	±29	1,726  	± 16  	
143-40	0.02	166	90	0.56	1 	.1086	.0008	4.70	0.10	.3137	.0061	.932	1,759	±30	1,777  	± 14  	
143-41	0.10	170	72	0.44	0 	.0690	.0014	1.43	0.04	.1499	.0030	.686	  900	±17	  898  	± 43  	
143-42	-- 	178	52	0.30	6 	.0774	.0011	1.92	0.05	.1803	.0035	.810	1,068	±19	1,132  	± 28  	
143-43	0.13	377	153	0.42	7 	.1020	.0007	3.79	0.08	.2695	.0050	.933	1,538	±25	1,662  	± 13  	
143-44	1.09	296	124	0.43	24 	.0887	.0016	2.20	0.06	.1801	.0034	.716	1,067	±19	1,399  	± 35  	
143-45	0.35	58	22	0.39	17 	.0793	.0018	1.79	0.06	.1637	.0038	.721	  978	±21	1,179  	± 44  	
143-46	-- 	328	103	0.32	7 	.1091	.0006	4.43	0.09	.2944	.0055	.964	1,664	±27	1,784	±  9	
																	
 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	
143-47	0.01	274	66	0.25	2 	.1112	.0006	4.89	0.10	.3187	.0060	.956	1,784	±29	1,819  	± 10  	
143-48	0.43	42	29	0.72	20 	.0840	.0042	2.02	0.11	.1744	.0043	.444	1,037	±24	1,293  	± 97  	
143-49	-- 	36	15	0.44	9 	.1041	.0026	3.88	0.13	.2706	.0066	.705	1,544	±34	1,698  	± 45  	
143-50	0.05	666	51	0.08	11 	.0915	.0005	2.81	0.05	.2227	.0041	.958	1,296	±21	1,456  	± 10  	
143-51	0.17	140	94	0.69	1 	.1040	.0013	4.26	0.10	.2973	.0058	.843	1,678	±29	1,696  	± 23  	
143-52	0.17	497	84	0.17	27 	.0932	.0007	2.39	0.05	.1855	.0035	.928	1,097	±19	1,493  	± 14  	
143-53	0.03	1291	275	0.22	6 	.0789	.0003	2.03	0.04	.1863	.0034	.975	1,101	±18	1,169	±  8	
143-54	0.41	43	28	0.69	-3 	.0890	.0025	3.07	0.11	.2504	.0060	.645	1,441	±31	1,405  	± 54  	
143-55	0.19	119	32	0.27	3 	.1078	.0013	4.51	0.11	.3032	.0061	.850	1,707	±30	1,762  	± 23  	
143-56	-- 	600	143	0.25	8 	.1099	.0005	4.46	0.08	.2940	.0053	.975	1,662	±27	1,798	±  8	
143-57	0.02	177	32	0.19	-5 	.0992	.0009	4.10	0.09	.3000	.0060	.907	1,691	±30	1,608  	± 17  	
143-58	0.02	301	85	0.29	6 	.0973	.0006	3.47	0.07	.2585	.0048	.947	1,482	±25	1,572  	± 12  	
143-59	-- 	298	89	0.31	5 	.1171	.0006	5.26	0.10	.3260	.0061	.959	1,819	±30	1,912	± 10	
143-60	0.05	206	91	0.46	-1 	.1001	.0011	3.98	0.09	.2887	.0055	.866	1,635	±28	1,625  	± 20  	
143-61	0.18	201	105	0.54	3 	.1097	.0010	4.71	0.10	.3115	.0060	.900	1,748	±29	1,794  	± 17  	
143-62	-- 	617	108	0.18	5 	.1010	.0005	3.84	0.07	.2754	.0050	.967	1,568	±25	1,643	±  9	
143-63	0.12	111	70	0.66	3 	.1026	.0013	4.06	0.10	.2874	.0058	.843	1,628	±29	1,671  	± 24  	
143-64	0.18	207	143	0.71	2 	.1012	.0011	3.95	0.09	.2834	.0054	.866	1,608	±27	1,646  	± 20  	
143-65	0.14	211	93	0.45	7 	.0915	.0008	2.97	0.06	.2350	.0045	.907	1,361	±23	1,457  	± 17  	

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.