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Table T18. Geochemistry of headspace gas samples, Hole U1406A.

Core, section,
interval (cm)
Depth
(mbsf)
Methane
(ppmv)
342-U1406A-
1H-5, 0–5 5.50 1.48
2H-7, 0–5 15.20 1.96
3H-7, 0–5 24.58 1.84
4H-7, 0–5 34.20 1.95
5H-7, 0–5 43.70 2.39
6H-7, 0–5 52.96 2.02
7H-7, 0–5 62.70 2.35
8H-7, 0–5 71.97 2.07
9H-7, 0–5 81.76 2.46
10H-7, 0–5 90.90 2.8
11H-7, 0–5 100.42 2.84
12H-7, 0–5 109.91 2.81
13H-7, 0–5 119.22 2.39
14H-7, 0–5 127.34 2.49
15H-7, 0–5 138.77 2.95
16H-6, 0–5 146.70 2.69
17H-6, 0–5 155.60 2.43
18H-5, 0–5 163.14 2.64
19H-6, 0–5 172.20 2.35
20H-6, 0–5 180.92 2.24
21H-2, 0–5 183.20 2.52
22H-6, 0–5 198.46 2.57
23H-6, 0–5 206.80 2.00
26X-3, 0–5 220.70 1.92
27X-7, 0–5 231.52 2.24
28X-7, 0–5 241.16 2.21
29X-2, 0–5 243.40 1.85
30X-2, 0–5 253.00 1.84
31X-2, 0–5 257.30 1.99
32X-4, 0–5 265.15 1.49
33X-6, 0–5 277.81 1.78
34X-2, 0–5 279.77 1.58

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