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Table T15. Headspace gas composition from sediments, Site U1351. (See table note.)

Core, section,
interval (cm)
Depth
CSF-A (m)
C1
(ppmv)
C2
(ppmv)
C2=
(ppmv)
C3
(ppmv)
C1
(mM)
C1/C2
317-U1351A-
1H-2, 0 1.50 0 0.0 0 0 0.00 ND
2H-2, 0 4.20 0 0.0 0 0 0.00 ND
2H-4, 0 7.20 0 0.0 0 0 0.00 ND
2H-6, 0 10.20 0 0.0 0 0 0.00 ND
3H-2, 0 13.70 0 0.0 0 0 0.00 ND
4H-2, 0 19.70 2,837 8.0 0 0 0.86 338
4H-4, 0 22.70 4,495 12.0 0 0 1.36 378
4H-5, 145 24.80 12,003 17.0 0 0 3.62 706
5H-2, 0 26.60 4,629 9.0 0 0 1.40 538
317-U1351B-
1H-2, 0 1.50 0 0.0 0 0 0.00 ND
2H-2, 0 9.30 0 0.0 0 0 0.00 ND
3H-2, 0 18.20 463 1.0 0 0 0.14 463
4H-2, 0 23.60 3,555 8.0 0 0 1.07 428
5H-3, 0 31.00 6,210 12.0 0 0 1.87 518
6H-2, 0 33.70 10,516 25.0 0 0 3.17 427
7H-2, 0 40.70 12,716 21.0 0 0 3.84 603
8H-2, 0 52.20 12,816 18.0 0 0 3.87 716
9H-3, 0 60.20 20,816 29.0 0 0 6.28 730
11H-2, 0 71.20 4,135 8.0 0 0 1.25 504
11H-3, 0 72.20 3,446 11.0 0 0 1.04 316
11H-4, 0 74.20 15,203 29.0 0 0 4.59 517
14X-2, 0 96.20 13,181 31.0 0 0 3.98 420
16X-4, 0 117.40 22,660 48.0 0 0 ND 468
18X-2, 0 133.50 11,057 26.0 0 0 ND 422
19X-3, 0 144.60 13,815 32.0 0 0 ND 437
20X-3, 0 154.20 10,217 22.0 0 0 ND 462
21X-4, 0 165.30 12,667 30.0 0 0 ND 422
22X-3, 0 173.40 3,698 11.0 0 0 ND 333
25X-2, 0 200.70 5,869 19.0 0 0 ND 306
27X-3, 0 221.40 14,768 48.0 0 0 ND 308
28X-3, 0 231.00 15,939 56.0 0 0 ND 286
29X-4, 0 242.00 11,714 41.0 0 0 ND 286
30X-4, 0 251.60 6,704 29.0 0 0 ND 234
31X-4, 0 261.20 6,520 28.0 0 0 ND 231
32X-3, 0 269.30 4,677 16.0 0 0 ND 298
33X-2, 0 277.40 4,430 12.0 0 0 ND 369
34X-1, 51 286.00 9,033 28.0 0 0 ND 325
36X-3, 0 307.70 3,017 9.0 0 0 ND 347
37X-2, 0 315.40 2,706 12.0 0 0 ND 229
39X-3, 0 336.20 2,900 9.0 0 0 ND 312
40X-2, 0 344.30 3,227 11.0 0 0 ND 304
41X-2, 0 353.30 6,574 22.0 0 0 ND 300
44X-1, 116 382.30 3,878 14.0 0 0 ND 279
45X-2, 0 392.20 2,360 10.0 0 0 ND 236
47X-2, 0 410.80 4,055 15.0 0 0 ND 280
64x-2, 0 554.90 5,692 21.0 0 0 ND 274
65H-1, 52 563.52 4,369 12.0 0 0 ND 353
70X-2, 0 602.80 3,117 10.0 0 0 ND 324
72X-1, 130 621.90 7,652 38.0 0 0 ND 201
88X-2, 0 756.40 6,102 34.0 0 2.6 ND 178
89X-2, 0 766.00 4,562 21.0 0 1.3 ND 215
90X-3, 0 777.10 4,431 21.0 0 0.9 ND 214
92X-2, 0 794.80 3,510 21.0 0 2.0 ND 164
93X-4, 0 807.50 3,513 19.0 0 1.1 ND 188
94X-4, 0 817.10 7,434 41.0 0 2.7 ND 184
97X-3, 0 844.40 3,453 23.0 0 3.7 ND 153
100X-4, 0 874.80 2,861 13.0 0 1.7 ND 222
101X-2, 0 881.40 3,296 14.0 0 0 ND 231
103X-1, 101 900.21 4,777 25.0 0 0 ND 189
104X-2, 0 910.30 4,810 25.0 0 0 ND 194
106X-3, 0 931.00 4,034 32.0 1.05 4.6 ND 127
109X-2, 0 958.30 2,716 13.0 0 0 ND 211
112X-4, 0 990.00 5,480 30.0 0 0 ND 184
113X-2, 0 996.60 3,052 17.0 0 0 ND 185

Note: ND = not determined.

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