Table T27. Headspace methane concentrations at Sites 1098 and 1099.
| Core,
section, interval (cm) |
Depth (mbsf) |
Methane (ppm) |
|---|---|---|
178-1098A- |
||
1H-2, 65-70 |
1.65 |
183 |
2H-4, 0-5 |
6.40 |
9 |
3H-4, 0-5 |
15.90 |
4 |
4H-4, 0-5 |
25.40 |
6 |
5H-4, 0-5 |
34.90 |
32,000 |
6H-4, 0-5 |
44.40 |
16,200 |
178-1099A- |
||
1H-3, 0-5 |
3.00 |
352 |
2H-4, 0-5 |
9.80 |
3,410 |
3H-4, 0-5 |
19.30 |
42,200 |
4H-4, 0-5 |
28.85 |
49,800 |
5H-4, 0-5 |
38.50 |
78,500 |
6H-4, 0-5 |
47.83 |
112,000 |
7H-4, 0-5 |
57.30 |
13,500 |
178-1099B- |
||
1H-4, 0-5 |
64.50 |
45,000 |
2H-4, 0-5 |
74.00 |
12,700 |
3H-4, 0-5 |
83.55 |
6,960 |
4H-4, 0-5 |
93.00 |
13,500 |
5H-4, 0-5 |
102.50 |
9,770 |