Table T3. Sr isotopic data, Bethany Beach borehole, Leg 174AXS.
Depth
Material
Sr value
Precision
Regression age estimate (Ma)
(ft)
(m)
Martin et al. (1999)
Oslick et al. (1994)
24.60 7.50 Shell 0.709147 0.000006

376.25 114.68 Shell 0.708936 0.000004 9.87
382.50 116.59 Shell 0.708940 0.000006 9.75
393.00 119.79 Shell 0.708921 0.000006
10.27
405.40 123.57 Shell 0.708936 0.000004 9.87
416.90 127.07 Shell 0.708946 0.000005 9.57
430.30 131.16 Shell 0.708883 0.000016
11.70
448.40 136.67 Shell 0.708915 0.000006
10.49
476.60 145.27 Shell 0.708944 0.000004 9.63
507.25 154.61 Shell 0.708907 0.000007
10.79
522.60 159.29 Shell 0.708906 0.000006
10.83
541.25 164.97 Shell 0.708881 0.000008
11.77
554.25 168.94 Shell 0.708809 0.000005
14.48
567.50 172.97 Shell 0.708882 0.000005
11.73
572.80 174.59 Shell 0.708826 0.000006
13.84
574.00 174.96 Shell 0.708795 0.000008
15.00
589.45 179.66 Shell 0.708847 0.000006
13.05
602.60 183.67 Shell 0.708838 0.000006
13.39
607.00 185.01 Shell 0.708733 0.000006
16.42
622.30 189.68 Shell 0.708730 0.000005
16.47
633.10 192.97 Shell 0.708829 0.000006
13.73
646.00 196.90 Shell 0.708843 0.000006
13.20
652.50 198.88 Shell 0.708802 0.000006
14.74
661.40 201.59 Shell 0.708815 0.000005
14.25
682.30 207.97 Shell 0.708818 0.000006
14.14
691.50 210.77 Shell 0.708838 0.000004
13.39
701.50 213.82 Shell 0.708775 0.000005
15.76
710.50 216.56 Shell 0.708813 0.000015
14.33
720.60 219.64 Shell 0.708769 0.000005
15.90
736.50 224.49 Shell 0.708774 0.000005
15.82
747.10 227.72 Shell 0.708751 0.000005
16.16
762.00 232.26 Shell 0.708759 0.000006
16.04
771.00 235.00 Shell 0.708760 0.000011
16.03
790.70 241.01 Shell 0.708730 0.000005
16.47
807.80 246.22 Shell 0.708675 0.000013
17.27
830.89 253.26 Shell 0.708725 0.000005
16.54
840.70 256.25 Shell 0.708689 0.000011
17.07
857.00 261.21 Shell 0.708713 0.000016
16.72
889.90 271.24 Shell 0.708684 0.000004
17.14
901.85 274.88 Shell 0.708686 0.000006
17.11
910.50 277.52 Shell 0.708645 0.000010
17.71
926.50 282.40 Shell 0.708620 0.000013
18.08
941.50 286.97 Shell 0.708615 0.000004
18.15
951.30 289.96 Shell 0.708608 0.000010
18.25
961.50 293.07 Shell 0.708573 0.000006
18.77
965.70 294.35 Shell 0.708594 0.000005
18.46
977.30 297.88 Shell 0.708599 0.000006
18.39
995.40 303.40 Shell 0.708585 0.000008
18.59
1005.00 306.32 Shell 0.708545 0.000004
19.18
1017.50 310.13 Shell 0.708579 0.000004
18.68
1036.70 315.99 Shell 0.708545 0.000005
19.18
1051.00 320.34 Shell 0.708564 0.000005
18.90
1085.00 330.71 Shell 0.708598 0.000005
18.40
1085.00 330.71 Shell 0.708531 0.000012
19.38
1128.00 343.81 Shell 0.708552 0.000009
19.07
1128.00 343.81 Shell 0.708560 0.000008
18.96
1142.00 348.08 Shell 0.708541 0.000011
19.24
1237.30 377.13 Shell 0.708445 0.000005
20.64
1256.10 382.86 Shell 0.708444 0.000006
20.66
1291.00 393.50 Shell 0.708471 0.000010
20.26
1291.20 393.56 Shell 0.708471 0.000005
20.26
1316.20 401.18 Shell 0.708461 0.000010
20.41
1362.00 415.14 Shell 0.708456 0.000006
20.48
1384.00 421.84 Shell 0.708443 0.000005
20.67
1401.10 427.06 Shell 0.708427 0.000006
20.96
1420.00 432.82 Shell 0.708423 0.000014
20.96
1430.80 436.11 Shell 0.708420 0.000050
21.01
1467.80 447.39 Shell 0.708060 0.000013
29.03