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Table T11. Sr isotope values and ages for all samples analyzed prior to the OSP, Expedition 313. (See table notes.)

Core, section,
interval (cm) 		Sample
depth (m) 		Laboratory
number 		Sr value Internal (machine)
precision 		Age
(Ma) 		McArthur
et al. (2001)
Sr ratio Age
313-M0027A-
1H-1, 144–150 1.44 1838 0.709115 0.000004 1.4 0.709120 1.3
6H-1, 145–150 12.99 1836 0.709159 0.000006 0.5 0.709164 0.4
6H-1, 145–150 12.99 1932 0.709185 0.000005 –0.1 0.709190 NA
9H-CC, 0–5 19.54 1929 0.709144 0.000006 0.8 0.709149 0.8
15H-CC 28.04 1812 0.709125 0.000005 1.2 0.709130 1.1
15H-CC 28.04 1920 0.709113 0.000006 1.5 0.709118 1.3
70X-CC, 0–3 209.41 1841 0.708819 0.000006 13.7 0.708824 12.6
73X-CC, 0–3 213.15 1991 0.708821 0.000005 13.6 0.708826 12.5
81R-1, 103–108 229.44 1809 0.708750 0.000008 16.0 0.708755 15.1
81R-1, 103–108 229.44 1931 0.708763 0.000004 15.8 0.708768 15.3
89R-CC, 0–2 255.90 1842 0.708727 0.000006 16.3 0.708732 15.8
91R-CC, 9–10 262.04 1845 0.708685 0.000006 17.0 0.708690 16.5
91R-CC, 9–10 262.04 1988 0.708452 0.000005 20.4 0.708457 19.7
95R-1, 139–143 272.50 1843 0.708665 0.000005 17.2 0.708670 16.9
101R-3, 34–38 292.75 1844 0.708625 0.000006 17.8 0.708630 17.5
105R-CC, 0–11 305.04 1982 0.708588 0.000006 18.4 0.708593 18.0
105R-CC, 0–11 305.04 2025 0.708640 0.000005 17.6 0.708645 17.3
149R-CC, 11–13 426.71 1897 0.708447 0.000008 20.4 0.708452 19.8
151R-1, 155–160 431.26 1808 0.708413 0.000004 20.9 0.708418 20.4
151R-1, 155–160 431.26 1987 0.708416 0.000007 20.9 0.708421 20.3
154R-2, 72–77 441.08 2053 0.708441 0.000015 20.5 0.708446 19.9
161R-CC, 8–10 463.61 1895 0.708401 0.000006 21.1 0.708406 20.6
168R-1, base 482.54 1813 0.708398 0.000005 21.2 0.708403 20.6
168R-1, base 482.54 1927 0.708412 0.000006 20.9 0.708417 20.4
183R-CC, 6–8 518.50 1983 0.708187 0.000006 25.3 0.708192 24.2
192R-2, 147–148 542.48 1850 0.708054 0.000006 28.2 0.708059 28.1
195R-2, 9–11 550.25 1848 0.708031 0.000007 28.8 0.708036 28.6
200R-3, 13–15 560.94 1847 0.708014 0.000006 29.3 0.708019 29.0
201R-CC, 13–14 564.21 1985 0.708023 0.000006 29.0 0.708028 28.8
202R-CC, 13–15 567.38 1851 0.708073 0.000005 27.7 0.708078 27.5
203R-CC, 3–5 570.23 1986 0.708030 0.000006 28.8 0.708035 28.6
205R-CC, 0–3 576.16 1849 0.708053 0.000006 28.2 0.708058 28.1
206R-3, 9–11 579.20 1928 0.708027 0.000004 28.9 0.708032 28.7
208R-2, 139–141 585.10 1896 0.708026 0.000004 28.9 0.708031 28.7
210R-CC, 0–3 591.32 1893 0.708011 0.000004 29.3 0.708016 29.1
211R-3, 0–2 594.36 1811 0.707974 0.000007 30.3 0.707979 30.1
219R-3, 24–28 619.00 1846 0.708011 0.000004 29.3 0.708016 29.1
223R-3, 18–20 628.09 1894 0.707816 0.000005 Old 0.707821 33.7
313-M0028A-
10R-3, 0–29 250.73 1995 0.708810 0.000005 14.0 0.708815 13.0
11R-CC, 0–12 254.18 2031 0.708002 0.000007 29.6 0.708007 29.3
16R-2, 110–115 265.58 2023 0.708767 0.000006 15.8 0.708772 15.2
27R-1, 145–150 291.62 1996 0.708785 0.000009 15.5 0.708790 14.8
29R-CC, 14–16 299.72 2017 0.708746 0.000005 16.1 0.708751 15.5
34R-CC, 0–2 311.43 2022 0.708802 0.000005 14.3 0.708807 13.4
38R-CC, 0–2 323.92 2015 0.708699 0.000006 16.7 0.708704 16.3
45R-1, 145–150 323.67 1998 0.708725 0.000004 16.4 0.708730 15.8
54R-CC, 11–14 352.95 1995 0.708706 0.000004 16.6 0.708711 16.1
66R-CC, 0–2 389.34 2024 0.709130 0.000014 1.1 0.709135 1.1
70R-CC, 9–11 397.89 2021 0.710403 0.000008 –26.2 0.710408 NA
82R-1, 149–154 425.12 1993 0.708661 0.000005 17.3 0.708666 16.9
94R-CC, 0–2 464.10 2020 0.708610 0.000006 18.0 0.708615 17.7
100R-CC, 6–8 482.53 1997 0.708559 0.000011 18.8 0.708564 18.3
102R-CC, 0–2 487.68 2013 0.708596 0.000004 18.3 0.708601 17.9
107R-CC, 0–3 503.79 2014 0.708574 0.000004 18.6 0.708579 18.1
170R-CC, 6–8 668.63 2016 0.708427 0.000004 20.7 0.708432 20.1
313-M0029A-
53R-CC, 11–14 292.28 1918 0.708805 0.000004 14.2 0.708810 13.2
56R-CC, 15–17 295.49 1913 0.708814 0.000005 13.8 0.708819 12.8
64R-CC, 0–2 322.20 1916 0.708829 0.000006 12.4 0.708834 12.1
67R-CC, 0–2 331.84 1914 0.708857 0.000011 11.6 0.708862 10.8
68R-1, 145–150 333.41 1948 0.708838 0.000006 12.2 0.708843 11.6
74R-2, 84–86 352.60 1915 0.708778 0.000006 15.6 0.708783 15.0
78R-CC, 0–3 362.50 1908 0.708828 0.000005 13.3 0.708833 12.2
78R-1, 148–153 360.89 1917 0.708831 0.000006 12.4 0.708836 12.0
81R-CC, 0–2 371.83 2026 0.708794 0.000004 14.6 0.708799 14.4
81R-CC, 0–2 371.83 1909 0.708801 0.000007 14.3 0.708806 13.5
82R-CC, 13–15 374.31 1910 0.708783 0.000006 15.5 0.708788 14.8
94R-2, 149–151 411.20 1905 0.708794 0.000006 14.6 0.708799 14.4
100R-CC, 32–24 429.83 2030 0.708721 0.000007 16.4 0.708726 15.9
102R-3, 13–15 435.74 1906 0.708754 0.000006 15.9 0.708759 15.4
104R-CC, 0–4 439.85 1907 0.708753 0.000004 16.0 0.708758 15.4
108R-CC, 0–5 451.25 1923 0.708787 0.000005 15.5 0.708792 14.7
109R-CC, 0–3 453.74 1919 0.708798 0.000006 14.4 0.708803 13.8
110R-CC, 0–2 455.99 1947 0.708789 0.000004 15.4 0.708794 14.6
111R-CC, 14–17 460.50 1938 0.708824 0.000006 13.5 0.708829 12.4
112R-CC, 0–2 463.27 1924 0.708771 0.000006 15.7 0.708776 15.1
114R-CC, 0–5 469.14 1946 0.708748 0.000005 16.0 0.708753 15.5
120R-CC, 13–15 484.42 1935 0.708791 0.000007 14.7 0.708796 14.6
122R-CC, 0–2 490.52 1936 0.708785 0.000004 15.5 0.708790 14.8
130R-CC, 0–2 514.88 1904 0.708771 0.000007 15.7 0.708776 15.1
132R-CC, 0–4 521.19 1901 0.708761 0.000005 15.8 0.708766 15.3
135R-CC, 0–2 528.20 1937 0.708738 0.000005 16.2 0.708743 15.6
135R-CC, 0–2 528.20 1902 0.708757 0.000004 15.9 0.708762 15.4
137R-CC, 14–16 533.70 1903 0.708745 0.000006 16.1 0.708750 15.5
141R-CC, 0–5 545.39 1934 0.708743 0.000006 16.1 0.708748 15.6
141R-CC, 0–5 545.39 1899 0.708745 0.000005 16.1 0.708750 15.5
143R-CC, 8–10 551.55 1921 0.708729 0.000006 16.3 0.708734 15.8
146R-CC, 7–9 557.73 1933 0.708703 0.000006 16.7 0.708708 16.2
148R-CC, 0–4 563.86 1920 0.708744 0.000006 16.1 0.708749 15.5
150R-2, 149–151 569.80 1900 0.708733 0.000008 16.2 0.708738 15.7
152R-CC, 0–2 576.02 1922 0.708745 0.000006 16.1 0.708750 15.5
156R-CC, 0–3 588.20 1945 0.708706 0.000004 16.6 0.708711 16.1
167R-2, 151–153 621.67 1944 0.708688 0.000006 16.9 0.708693 16.4
189R-CC, 16–18 675.22 1979 0.708350 0.000014 21.9 0.708355 21.5
195R-CC, 10–12 695.29 2027 0.707986 0.000008 30.0 0.707991 29.7
195R-CC, 10–12 695.29 1978 0.708596 0.000004 18.3 0.708601 17.9
214R-1, 51–53 747.27 2028 0.708406 0.000005 21.0 0.708411 20.5
217R-1, 0–4 752.86 2029 0.708386 0.000005 21.3 0.708391 20.9

Notes: Sr value = Sr isotope value relative to NBS 987 value of 0.710241. Age = ages derived using regressions outlined in text. Also given for comparison are Sr values corrected to McArthur et al. (2001) and ages derived from that study's "lookup tables;" these were not plotted in the age-depth plots.

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