|
Core
|
Depth (mbsf)
|
Run time
(min) |
Total volume
(mL)* |
Volume (mL)†
|
Concentration (%)‡
|
Core length
(m) |
Porosity
(%) |
C1 (mM)**
|
|||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Top
|
Bottom
|
O2 + N2
|
C1
|
CO2
|
C2+
|
O2 + N2
|
C1
|
CO2
|
C2+
|
||||||
| 204-1250C- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 9P | 71 | 72 | 1800 | 2570 | 187.0 | 2379.0 | 3.7 | 0.18 | 7.3 | 92.6 | 0.1 | 0.007 | 0.90-1.00 | 60 | 112.4-124.9 |
| 204-1250D- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 5P | 35 | 36 | 1408 | 4460 | 372.0 | 4082.8 | 4.9 | 0.26 | 8.3 | 91.5 | 0.1 | 0.006 | 0.92-1.00 | 61 | 189.5-206.0 |
| 13P | 103.5 | 104.5 | 1698 | 3130 | 95.4 | 3028.6 | 4.9 | 1.06 | 3.0 | 96.8 | 0.2 | 0.034 | 0.95-1.00 | 58 | 146.2-153.9 |
| 18P | 135.2 | 136.2 | 1196 | 1385 | 92.0 | 1291.2 | 1.3 | 0.46 | 6.6 | 93.2 | 0.1 | 0.033 | 0.93-1.00 | 55 | 65.7-70.7 |
| 204-1250F- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 4P | 119 | 120 | 579 | 5390 | 416.4 | 4952.6 | 14.2 | 6.86 | 7.7 | 91.9 | 0.3 | 0.127 | 0.88-1.00 | 57 | 244.9-278.3 |
Note: * = volume of gas released. † = volume of components released. ‡ = concentration of components released. ** = concentration in situ. Core length is reported as measured after the core was degassed and split (i.e., curated length). All cores had a nominal length of 1 m. The difference between the measured length and 1 m may be due to two factors: (1) incomplete recovery and (2) dissociation of gas hydrate during degassing. The lower concentration estimate corresponds to the assumption of 100% recovery; the higher estimate corresponds to the assumption that core length represented the percentage of recovery.