Table T18. Geochemistry of headspace gas samples, Hole U1408A.
Core, section, interval (cm) |
Depth (mbsf) |
Methane (ppmv) |
---|---|---|
342-U1408- | ||
1H-3, 0–5 | 3.00 | 1.84 |
2H-7, 0–5 | 12.81 | 1.81 |
3H-7, 0–5 | 22.30 | 1.97 |
4H-6, 0–5 | 30.81 | 1.88 |
5H-7, 0–5 | 41.30 | 2.6 |
6H-7, 0–5 | 50.80 | 2.36 |
7H-7, 0–5 | 60.80 | 2.5 |
8H-7, 0–5 | 69.92 | 4.4 |
9H-6, 0–5 | 78.11 | 2.73 |
10H-7, 0–5 | 89.30 | 2.78 |
11H-7, 0–5 | 98.61 | 2.43 |
12H-7, 0–5 | 107.21 | 2.79 |
13H-7, 0–5 | 117.80 | 3.29 |
14H-7, 0–5 | 127.30 | 4.46 |
15H-7, 0–5 | 136.80 | 4.79 |
16H-7, 0–5 | 145.00 | 3.89 |
17H-7, 0–5 | 155.31 | 4.33 |
18H-7, 0–5 | 163.76 | 3.5 |
19H-7, 0–5 | 174.70 | 4.31 |
20H-5, 0–5 | 181.30 | 3.08 |
21X-7, 0–5 | 191.80 | 3.51 |
22X-7, 0–5 | 197.82 | 3.28 |
23X-6, 0–5 | 206.00 | 3.08 |
24X-5, 0–5 | 214.10 | 2.7 |
25X-7, 0–5 | 226.20 | 2.71 |
26X-4, 0–5 | 230.99 | 2.16 |
27X-7, 0–5 | 245.71 | 2.27 |
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