Combined Solution 1

Weighted mean of  solutions USGS 2, SIO 2, and JPL 3, all relative to VNDP .

Two estimates of standard deviation are given:

The first is the formal error of the weighted mean.
The second, possibly more realistic, is simply the mean of the original standard deviations.
All three solutions used the same data and are therefore correlated. For that reason, the
larger estimated standard deviation may be more accurate.

Site	N mean	N sd	N sd		E mean	E sd	E sd		U mean	U sd	U sd
	m	formal	more realistic?	m	formal	more realistic?	m	formal	more realistic?
		m	m			m	m			m	m

AOA1	 0.0002	 0.0013	 0.0023		-0.0010	 0.0018	 0.0033		-0.0049	 0.0054	 0.0110
AVRY	 0.0062	 0.0009	 0.0021		-0.0192	 0.0012	 0.0028		-0.0023	 0.0035	 0.0097
AZU1	 0.0025	 0.0009	 0.0021		-0.0017	 0.0012	 0.0029		 0.0010	 0.0037	 0.0100
BBRY	 0.0244	 0.0009	 0.0019		 0.0057	 0.0012	 0.0027		 0.0006	 0.0036	 0.0088
BKMS	 0.0008	 0.0012	 0.0023		 0.0004	 0.0017	 0.0031		 0.0014	 0.0050	 0.0105
BLYT	-0.0033	 0.0009	 0.0021		 0.0080	 0.0014	 0.0032		 0.0001	 0.0036	 0.0093
BMRY	 0.0185	 0.0009	 0.0021		 0.0111	 0.0012	 0.0027		 0.0046	 0.0035	 0.0097
BSRY	 0.0152	 0.0009	 0.0020		-0.0337	 0.0012	 0.0028		-0.0063	 0.0035	 0.0090
CLAR	 0.0037	 0.0009	 0.0020		-0.0016	 0.0012	 0.0029		-0.0030	 0.0036	 0.0098
CRFP	 0.0136	 0.0009	 0.0020		 0.0074	 0.0012	 0.0028		 0.0032	 0.0035	 0.0096
CSDH	 0.0002	 0.0012	 0.0022		 0.0009	 0.0017	 0.0031		-0.0026	 0.0050	 0.0105
CSN1	-0.0010	 0.0012	 0.0022		-0.0051	 0.0017	 0.0031		-0.0019	 0.0050	 0.0103
CTMS	 0.1043	 0.0009	 0.0021		 0.0330	 0.0012	 0.0028		 0.0157	 0.0036	 0.0096
CVHS	 0.0021	 0.0013	 0.0024		-0.0021	 0.0018	 0.0034		-0.0027	 0.0053	 0.0112
DAM1	-0.0009	 0.0013	 0.0023		-0.0009	 0.0018	 0.0033		-0.0001	 0.0056	 0.0115
DAM2	 0.0011	 0.0013	 0.0024		-0.0022	 0.0018	 0.0034		 0.0037	 0.0058	 0.0118
DHLG	 0.0036	 0.0009	 0.0021		 0.0048	 0.0013	 0.0029		 0.0022	 0.0036	 0.0097
DYHS	 0.0011	 0.0012	 0.0022		 0.0001	 0.0017	 0.0031		 0.0035	 0.0050	 0.0105
FVPK	 0.0006	 0.0012	 0.0023		 0.0038	 0.0017	 0.0034		 0.0065	 0.0049	 0.0107
GOL2	 0.0005	 0.0009	 0.0021		-0.0048	 0.0012	 0.0028		-0.0005	 0.0032	 0.0080
HOLC	 0.0024	 0.0009	 0.0023		-0.0045	 0.0013	 0.0031		-0.0030	 0.0039	 0.0108
JPLM	 0.0000	 0.0013	 0.0022		-0.0029	 0.0018	 0.0033		 0.0001	 0.0054	 0.0105
LASC	 0.0012	 0.0009	 0.0021		 0.0005	 0.0013	 0.0030		 0.0004	 0.0036	 0.0101
LBC1	 0.0012	 0.0013	 0.0024		 0.0036	 0.0018	 0.0035		 0.0046	 0.0054	 0.0114
LBC2	 0.0006	 0.0012	 0.0023		 0.0026	 0.0018	 0.0034		 0.0045	 0.0051	 0.0109
LDES	 0.1790	 0.0009	 0.0021		 0.0592	 0.0012	 0.0028		 0.0207	 0.0035	 0.0097
LINJ	 0.0019	 0.0009	 0.0021		-0.0029	 0.0012	 0.0028		-0.0021	 0.0036	 0.0098
LONG	 0.0026	 0.0009	 0.0021		-0.0010	 0.0012	 0.0028		 0.0003	 0.0037	 0.0101
LPHS	 0.0017	 0.0012	 0.0023		-0.0028	 0.0017	 0.0033		-0.0003	 0.0052	 0.0110
MONP	 0.0042	 0.0009	 0.0020		 0.0025	 0.0013	 0.0028		 0.0064	 0.0036	 0.0089
MSOB	 0.0074	 0.0009	 0.0019		-0.0026	 0.0012	 0.0027		 0.0011	 0.0036	 0.0090
MUSD	-0.0009	 0.0012	 0.0023		 0.0006	 0.0018	 0.0036		 0.0046	 0.0049	 0.0107
OAES	 0.0280	 0.0009	 0.0021		 0.0264	 0.0012	 0.0028		 0.0030	 0.0036	 0.0097
PIN1	 0.0178	 0.0008	 0.0019		 0.0076	 0.0012	 0.0026		 0.0043	 0.0034	 0.0087
PIN2	 0.0178	 0.0008	 0.0020		 0.0077	 0.0012	 0.0027		 0.0049	 0.0035	 0.0095
PMHS	 0.0014	 0.0012	 0.0023		-0.0011	 0.0017	 0.0033		-0.0009	 0.0050	 0.0107
PMOB	 0.0103	 0.0009	 0.0021		 0.0049	 0.0013	 0.0030		 0.0003	 0.0037	 0.0100
PVEP	 0.0010	 0.0009	 0.0021		-0.0001	 0.0013	 0.0028		 0.0015	 0.0037	 0.0097
ROCH	 0.0184	 0.0009	 0.0021		 0.0080	 0.0012	 0.0027		 0.0070	 0.0036	 0.0097
RTHS	 0.0053	 0.0009	 0.0020		 0.0011	 0.0012	 0.0028		 0.0015	 0.0035	 0.0096
SCIA	 0.0031	 0.0015	 0.0027		-0.0169	 0.0020	 0.0037		 0.0023	 0.0059	 0.0122
SIO3	 0.0038	 0.0015	 0.0036		 0.0017	 0.0024	 0.0062		 0.0041	 0.0059	 0.0156
SNI1	 0.0007	 0.0009	 0.0020		 0.0018	 0.0014	 0.0032		 0.0081	 0.0036	 0.0088
SPMS	 0.0022	 0.0009	 0.0021		-0.0001	 0.0013	 0.0030		 0.0014	 0.0036	 0.0100
SPMX	-0.0009	 0.0010	 0.0025		 0.0014	 0.0016	 0.0044		 0.0004	 0.0040	 0.0121
TABL	 0.0037	 0.0009	 0.0021		-0.0056	 0.0013	 0.0030		-0.0008	 0.0037	 0.0101
VYAS	 0.0000	 0.0012	 0.0023		-0.0006	 0.0017	 0.0032		 0.0006	 0.0051	 0.0107
WIDC	 0.0525	 0.0009	 0.0020		 0.0176	 0.0012	 0.0027		 0.0095	 0.0035	 0.0088
WLSN	 0.0015	 0.0013	 0.0024		-0.0014	 0.0018	 0.0034		-0.0018	 0.0056	 0.0115