Table 2. Sr-isotopic data and age calculations, Cape May borehole, Leg 150X.
Depth
(ft)		 87Sr/86Sr Error
(±)		 Age (Ma)
(BKFV85)		 Age (Ma)
(CK92)
358.0 0.708856 0.000006 12.5 12.7
370.0 0.708880 0.000008 11.4 11.8
386.7 0.708885 0.000008 11.2 11.6
390.6 0.708870 0.000009 11.9 12.2
417.1a 0.708878 0.000007 11.5 11.9
417.1b 0.708887 0.000013 11.1 11.6
421.4 0.708878 0.000006 11.5 11.9
431.5 0.708878 0.000007 11.5 11.9
514.0 0.708790 0.000008 15.5 15.2
527.5 0.708812 0.000013 14.5 14.4
529.0 0.708805 0.000025 14.8 14.6
574.0 0.708816 0.000011 14.3 14.2
582.0 0.708766 0.000008 16.2 15.9
583.0 0.708787 0.000009 15.9 15.6
600.0 0.708764 0.000011 16.3 16.0
677.3 0.708721 0.000006 16.9 16.6
706.4 0.708659 0.000007 17.8 17.5
722.5 0.708601 0.000008 18.6 18.4
810.9 0.708558 0.000010 19.3 19.0
832.6 0.708540 0.000007 19.5 19.3
851.3 0.708499 0.000014 20.1 19.9
882.7 0.708498 0.000008 20.1 19.9
982.2 0.708476 0.000011 20.4 20.2
1012.7 0.708448 0.000007 20.8 20.6
1058.0 0.708438 0.000077 21.0 20.7
1058.0 0.708446 0.000009 20.9 20.6
1085.0 0.708323 0.000014 22.6 22.4
1085.0 0.708318 0.000029 22.7 22.5
1098.0 0.708334 0.000020 22.5 22.4
1098.0 0.708327 0.000016 22.6 22.3
1136.0 0.708290 0.000006 23.1 23.6
1209.0 0.708229 0.000029 25.0 24.8
1209.0 0.708228 0.000014 24.9 24.7
1247.0 0.708257 0.000006 24.1 24.2
1249.0 0.708251 0.000011 24.3 24.3
1340.0 0.707995 0.000030 31.7 30.1

Notes: Equation used:

for 87Sr/86Sr = 0.708930 - 0.708789, BKFV age: Age (Ma) = 31799.78 - (87Sr/86Sr) X 44843.05, Age = 9.2-15.2 Ma; CK age: Age (Ma) = 26661.43 - (87Sr/86Sr) X 37593.98, Age = 9.9-15.2 Ma.

for 87Sr/86Sr = 0.7087889 - 0.708305, BKFV age: Age (Ma) = 10258.53 - (87Sr/86Sr) X 14450.87, Age = 15.6-22.8 Ma; CK age: Age (Ma) = 10393.19 - (87Sr/86Sr) X 14641.29, Age = 15.5-22.8 Ma.

for 87Sr/86Sr = 0.708304 - 0.708065, BKFV age: Age (Ma) = 20392.79 - (87Sr/86Sr) X 28758.84, Age > 22.8 Ma; CK age: Age (Ma) = 13803.52 - (87Sr/86Sr) X 19455.25 (Miller et al., 1988), Age = 23.2-28.0 Ma.

All equations after Oslick et al. (1994) unless noted.