Table T3. Sr isotope data.
|
Sr lab
number
|
Run date
|
Depth
|
Sr value
|
Corrected
Sr value
|
Error
|
Age
(Ma)
|
|
(ft)
|
(m)
|
806
|
21 Jun 2006
|
50.3
|
15.33
|
0.709171
|
0.709188
|
0.000008
|
0.12
|
511
|
4 Aug 2005
|
55.3
|
16.86
|
0.709147
|
0.709164
|
0.000004
|
0.63
|
393
|
13 May 2005
|
64.1
|
19.54
|
0.709168
|
0.709185
|
0.000004
|
0.18
|
804
|
21 Jun 2006
|
66
|
20.12
|
0.709179
|
0.709196
|
0.000008
|
–0.05
|
807
|
21 Jun 2006
|
70.9
|
21.61
|
0.709119
|
0.709136
|
0.000012
|
1.23
|
805
|
21 Jun 2006
|
81.9
|
24.96
|
0.709169
|
0.709186
|
0.000009
|
0.16
|
885
|
8 Sep 2006
|
285.5
|
87.02
|
0.708866
|
0.708876
|
0.000008
|
12.0
|
395
|
13 May 2005
|
292.9
|
89.28
|
0.708862
|
0.708872
|
0.000008
|
12.1
|
506
|
4 Aug 2005
|
311.7
|
95.01
|
0.708837
|
0.708847
|
0.000011
|
13.1
|
889
|
8 Sep 2006
|
323.7
|
98.66
|
0.708846
|
0.708856
|
0.000013
|
12.7
|
508
|
4 Aug 2005
|
324.4
|
98.88
|
0.708821
|
0.708831
|
0.000004
|
13.7
|
888
|
8 Sep 2006
|
341.0
|
103.94
|
0.708844
|
0.708854
|
0.000007
|
12.8
|
754
|
11 May 2006
|
342.1
|
104.27
|
0.708813
|
0.708823
|
0.000009
|
14.0
|
381
|
4 May 2005
|
351.1
|
107.02
|
0.708823
|
0.708833
|
0.000004
|
13.6
|
501
|
4 Aug 2005
|
351.3
|
107.08
|
0.708831
|
0.708841
|
0.000004
|
13.3
|
890
|
8 Sep 2006
|
366.0
|
111.56
|
0.708871
|
0.708881
|
0.000006
|
11.8
|
390
|
13 May 2005
|
368.5
|
112.32
|
0.708838
|
0.708848
|
0.000004
|
13.0
|
886
|
8 Sep 2006
|
383.8
|
116.98
|
0.708820
|
0.708830
|
0.000009
|
13.7
|
632
|
30 Sep 2005
|
392.1
|
119.51
|
0.708812
|
0.708822
|
0.000006
|
14.0
|
505
|
4 Aug 2005
|
393.0
|
119.79
|
0.708821
|
0.708831
|
0.000005
|
13.7
|
751
|
11 May 2006
|
398.6
|
121.49
|
0.708837
|
0.708847
|
0.000011
|
13.1
|
627
|
30 Sep 2005
|
402.2
|
122.59
|
0.708830
|
0.708840
|
0.000005
|
13.3
|
624
|
30 Sep 2005
|
409.3
|
124.75
|
0.708824
|
0.708834
|
0.000006
|
13.5
|
628
|
30 Jun 2005
|
409.9
|
124.94
|
0.708816
|
0.708826
|
0.000005
|
13.8
|
752
|
11 May 2006
|
410.9
|
125.24
|
0.708829
|
0.708839
|
0.000013
|
13.4
|
630
|
30 Sep 2005
|
430.7
|
131.28
|
0.708764
|
0.708774
|
0.000005
|
15.8
|
382
|
4 May 2005
|
452.0
|
137.77
|
0.708768
|
0.708778
|
0.000004
|
15.8
|
512
|
4 Aug 2005
|
460.6
|
140.39
|
0.708741
|
0.708751
|
0.000004
|
16.2
|
394
|
13 May 2005
|
474.8
|
144.72
|
0.708734
|
0.708744
|
0.000004
|
16.3
|
510
|
4 Aug 2005
|
501.9
|
152.98
|
0.708705
|
0.708715
|
0.000004
|
16.7
|
887
|
8 Sep 2006
|
501.9
|
152.98
|
0.708698
|
0.708708
|
0.000008
|
16.8
|
383
|
4 May 2005
|
512.0
|
156.06
|
0.708712
|
0.708722
|
0.000005
|
16.6
|
509
|
4 Aug 2005
|
524.8
|
159.96
|
0.708664
|
0.708674
|
0.000007
|
17.3
|
631
|
30 Sep 2005
|
531.8
|
162.09
|
0.708708
|
0.708718
|
0.000006
|
16.6
|
392
|
13 May 2005
|
546.8
|
166.66
|
0.708682
|
0.708692
|
0.000008
|
17.0
|
384
|
4 May 2005
|
561.0
|
170.99
|
0.708649
|
0.708659
|
0.000004
|
17.5
|
502
|
4 Aug 2005
|
567.3
|
172.91
|
0.708632
|
0.708642
|
0.000006
|
17.8
|
507
|
4 Aug 2005
|
626.0
|
190.80
|
0.708663
|
0.708673
|
0.000015
|
17.3
|
750
|
11 May 2006
|
640.3
|
195.16
|
0.708553
|
0.708563
|
0.000009
|
18.9
|
686
|
14 Dec 2005
|
640.7
|
195.29
|
0.708563
|
0.708573
|
0.000005
|
18.8
|
753
|
11 May 2006
|
640.7b
|
195.29b
|
0.708502
|
0.708512
|
0.000031
|
19.7
|
783
|
12 Jun 2006
|
640.8
|
195.32
|
0.708534
|
0.708544
|
0.000028
|
19.2
|
784
|
12 Jun 2006
|
641.0
|
195.38
|
0.708563
|
0.708573
|
0.000007
|
18.8
|
786
|
12 Jun 2006
|
641.4
|
195.50
|
0.708552
|
0.708562
|
0.000008
|
18.9
|
782
|
12 Jun 2006
|
642.0
|
195.68
|
0.708554
|
0.708564
|
0.000008
|
18.9
|
787
|
12 Jun 2006
|
644.5
|
196.43
|
0.708500
|
0.708510
|
0.000006
|
19.7
|
633
|
30 Sep 2005
|
650.2
|
198.18
|
0.708494
|
0.708504
|
0.000011
|
19.8
|
785
|
12 Jun 2006
|
651.0
|
198.42
|
0.708581
|
0.708591
|
0.000008
|
18.5
|
683
|
14 Dec 2005
|
651.3
|
198.52
|
0.708519
|
0.708529
|
0.000005
|
19.4
|
693
|
20 Dec 2005
|
652.4
|
198.85
|
0.708482
|
0.708492
|
0.000018
|
20.0
|
385
|
4 May 2005
|
660.3
|
201.26
|
0.708479
|
0.708489
|
0.000018
|
20.0
|
503
|
4 Aug 2004
|
666.4
|
203.12
|
0.708503
|
0.708513
|
0.000004
|
19.6
|
504
|
4 Aug 2005
|
685.1
|
208.82
|
0.708480
|
0.708490
|
0.000004
|
20.0
|
391
|
13 May 2005
|
707.8
|
215.74
|
0.708471
|
0.708481
|
0.000008
|
20.1
|
Notes: Analyses made on shell material. Sr values and ages of samples from above 81.9 ft (24.96 m) are corrected for 758 regression.