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Table T1. Pore fluid geochemical data, Holes U1378B and U1380C.

Core, section,
interval (cm)
Depth
(mbsf)
δ13C
(‰ PDB)
δ18O
(‰ SMOW)
δD
(‰ SMOW)
87Sr/86Sr
334-U1378B-          
1H-1, 138–168 1.38 –4.34     0.70918
1H-2, 138–168 2.88 –12.74     0.70917
1H-3, 138–168 4.38 –10.76      
1H-4, 46–58 4.96 –14.12     0.70916
2H-1, 138–168 6.68 –15.45 –0.03 0.98  
2H-1, 138–168* 6.68   –0.22 2.75  
2H-2, 138–150 8.18 –18.62      
2H-3, 138–168 9.68 –19.85     0.70915
2H-4, 138–168 11.18 –22.35     0.70916
2H-5, 138–150 12.68 –21.91      
2H-6, 138–150 14.18 –16.45     0.70917
2H-7, 54–66 14.84 –14.08      
3H-1, 138–150 16.18 –8.57     0.70916
3H-2, 138–150 17.68 –5.35 0.13 2.69  
3H-3, 138–148 19.18 –1.67     0.70914
3H-4, 138–148 20.68 0.65      
3H-5, 138–148 22.18 2.92      
3H-6, 133–143 23.63 4.17 0.06 2.52  
3H-6, 133–143* 23.63   –0.06 3.49 0.70914
3H-7, 58–68 24.38 5.08 0.06 2.81  
4H-3, 138–148 27.79 7.52     0.70912
4H-6, 138–148 32.29 6.77 0.05 3.42  
5H-2, 138–148 36.68 5.05      
5H-6, 138–148 42.68 4.11 0.22 3.83 0.70914
6H-2, 138–148 46.18 5.25      
6H-5, 138–148 50.68 6.13 0.06 4.45  
6H-5, 138–148* 50.68   –0.10 5.50  
7H-2, 138–148 55.68 7.56     0.709
7H-5, 138–148 60.18 8.12 –0.17 3.40  
8H-2, 138–148 63.82 8.6     0.70899
8H-5, 138–153 68.32 8.49 –0.09 3.73  
9H-2, 138–153 74.68 9.19     0.70898
9H-5, 130–145 79.10 10.54      
10H-2, 130–145 84.10 10.88      
10H-4, 138–153 87.10 10.27     0.70889
11H-3, 138–153 93.98 9.69      
12H-3, 138–153 99.83 10.47     0.70885
13H-4, 138–153 107.88 9.7 –0.46 2.99  
13H-4, 138–153* 107.88   –0.56 3.50  
14H-3, 138–153 114.09 9.53      
15H-2, 118–133 118.48 8.82     0.70876
16H-3, 133–148 124.78 7.77 –0.35 1.82 0.70869
17X-3, 133–148 132.13 9.32      
18X-3, 113–128 136.33 9.49     0.70871
19X-5, 71–86 148.55 8.73      
20X-5, 130–145 158.24   –0.36 2.20  
20X-5, 130–145* 158.24 9.11 –0.32 2.36  
21X-7, 68–83 169.64 10.12      
22X-5, 88–103 178.18 10.08      
23X-6, 109–124 188.79 9.33     0.70873
24X-4, 122–137 194.91 8.68      
25X-3, 74–89 202.69 7.59 –0.22 1.85  
25X-3, 74–89* 202.69   –0.43 1.98  
27X-2, 100–115 220.00 8.65      
28X-7, 33–63 236.43 9.07      
29X-3, 45–80 236.75 9.66     0.70869
30X-2, 110–145 240.90 9.97      
31X-4, 118–148 252.48 10.29      
32X-3, 73–103 259.83 10.11 –0.71 –0.36 0.70862
33X-5, 58–93 271.89 10.46      
34X-2, 86–121 277.96 10.79      
35X-5, 98–133 292.08 10.84      
36X-2, 93–128 297.63 10.65 –0.33 –0.39  
37X-2, 91–126 307.21 10.84     0.70846
38X-1, 118–153 310.48 10.58      
39X-5, 118–153 321.68 10.1 –0.55 –3.11 0.70836
40X-4, 80–115 329.10 9.57      
41X-5, 104–139 340.74 8.56     0.70828
42X-3, 64–94 347.04 7.63 –0.46 –2.91  
42X-3, 64–94* 347.04   –0.58 –2.50  
43X-5, 55–85 358.71 7.68     0.70802
45X-3, 55–85 369.65 6.44      
46X-2, 115–145 374.25 5.77     0.70789
47X-2, 95–125 379.35 4.45      
48X-1, 96–121 382.86 3.88      
49X-3, 106–136 394.66   0.59 –3.03 0.70791
49X-3, 106–136* 394.66   0.56 –1.97  
50X-2, 97–127 402.27 3.31      
51X-5, 85–115 415.96 3.72      
52X-5, 70–100 425.00 1.29     0.70799
54X-5, 104–140 444.24 –0.53      
55X-2, 81–116 448.81       0.70823
56X-2, 64–99 458.24 0.7 –0.02 –4.65  
57X-3, 63–98 469.33       0.70862
58X-2, 90–126 478.26        
59X-4, 93–128 489.66 6.83 0.30 –5.17  
60X-4, 60–95 499.72 1.76      
61X-4, 102–137 510.12 4.16     0.70844
62X-1, 54–79 510.24 4.8     0.7084
63X-4, 84–119 518.74 4.39 1.36 –5.37  
63X-4, 84–119* 518.74   1.07 –4.22 0.7084
344-U1380C-          
3R-3, 114–144 451.94   –0.06 –6.42 0.70834
3R-5, 112–150 454.70       0.70846
4R-1, 51–73 458.13       0.70836
5R-3, 107–137 470.67   –0.21 –6.57 0.70838
6R-3, 122–152 481.25       0.70833
7R-3, 120–150 491.00   –0.40 –6.05 0.70842
7R-5, 87–107 493.40       0.70837
8R-2, 116–146 499.12       0.70835
9R-1, 102–132 507.22   –0.11 –6.97 0.70844
9R-6, 79–109 513.28       0.70841
10R-4, 53–78 519.53       0.70846
10R-6, 64–90 521.93   –0.05 –7.67 0.70851
11R-2, 59–89 526.87       0.70854
11R-4, 87–117 529.54   –0.33 –8.18 0.70856
12R-2, 79–113 537.55       0.7086
12R-4, 78–108 539.58   –0.26 –7.81 0.70864
12R-8, 62–92 543.72       0.70867
13R-3, 50–80 548.02   –0.09 –6.81 0.70868
13R-6, 58–88 551.90   –0.06 –7.78 0.70868

* = duplicate sample. 87Sr/86Sr data normalized to NIST standard NBS-987 (Ross et al., 2015). PDB = Peedee belemnite, SMOW = standard mean ocean water.

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