Core,
section |
Depth
(mbsf) |
N2/O2
|
CH4/N2
|
CH4
(mmol/kg) |
|---|---|---|---|---|
| 201-1230A- | ||||
| 4H-6 | 28.3 | 5.2 | 13.4 | 42.6 |
| 5H-1 | 33.8 | 16.1 | 30.3 | 36.5 |
| 6H-3 | 46.3 | 9.6 | 41 | 62.1 |
| 7H-3 | 54.0 | 7.8 | 41.5 | 73.5 |
| 9H-4 | 64.3 | 13.5 | 53.8 | 68.8 |
| 10H-3 | 73.6 | 5.1 | 62.7 | 209 |
| 11H-6 | 85.0 | 3.7 | 0.6 | Contaminated |
| 12H-1 | 90.4 | 3.8 | 6.5 | Contaminated |
| 13H-5 | 105.3 | 5.4 | 35.2 | 105 |
| 14H-6 | 116.4 | 3.7 | 0.5 | Contaminated |
| 15H-5 | 123.0 | 6.8 | 140 | 289 |
| 17H-1 | 132.0 | 6.4 | 54.1 | 120 |
| 19H-2 | 150.6 | 5.7 | 93.5 | 248 |
| 21H-4 | 161.9 | 9.1 | 46.1 | 72 |
| 22H-2 | 169.7 | 11.3 | 96.3 | 133 |
| 201-1230B- | ||||
| 12H-3 | 84.9 | 13.2 | 76.3 | 98.2 |
| 11H-5 | 78.9 | 17.3 | 168 | 198 |
| 7H-6 | 50.1 | 3.7 | 0.2 | Contaminated |
| 8H-2 | 55.2 | 10.2 | 37.5 | 54.5 |
| 9H-1 | 66.3 | 12.4 | 52.7 | 69.6 |
| 8H-2 | 54.4 | 13.2 | 39.5 | 50.8 |
| 7H-1 | 44.0 | 25.7 | 33.1 | 35.9 |
| 6H-1 | 35.4 | 11.3 | 35.3 | 48.7 |
Notes: Concentrations are based on the mean values calculated using equations 7 and 8 (see text). As described in the text, uncertainty due to not knowing Vvapor/Miw is ±33% from the calculated mean. Samples are identified as contaminated if they are contaminated to an extent that creates an uncertainty >33%.