Table T36. Hydrocarbon gas composition in void gas, Holes C0002K and C0002L.
|
Core, section, interval (cm) |
Depth (mbsf) |
Headspace gas (ppmv) | C1/(C2 + C3) |
δ13C-CH4 (‰ VPDB) |
||
|---|---|---|---|---|---|---|
| Methane | Ethane | Propane | ||||
| 338-C0002K- | ||||||
| 1H-4, 31 | 203.2 | 190,689 | 14.8 | 0.1 | 12,791 | –71.8 |
| 3T-4, 74 | 209.2 | 158,596 | 5.8 | 2.1 | 19,937 | –66.5 |
| 4T-4, 38.5 | 216.5 | 3 | ND | ND | — | — |
| 5T-4, 48.5 | 223.1 | 221,853 | 12.4 | 3.5 | 13,933 | –65.9 |
| 6T-2, 78 | 231.3 | 154,372 | 4.2 | 2.5 | 22,871 | –65.9 |
| 7X-4, 43.5 | 241.2 | 238,183 | 13.7 | 3.6 | 13,811 | –66.8 |
| 8X-2, 47.5 | 250.4 | 221,699 | 15.7 | 1.9 | 12,537 | –64.1 |
| 9X-3, 0 | 260.0 | 213,377 | 17.8 | 0.8 | 11,490 | –66.2 |
| 10X-3, 4 | 268.2 | 217,825 | 17.1 | 1.9 | 11,440 | –66.2 |
| 11X-3, 0 | 277.7 | 138,703 | 5.9 | 4.4 | 13,384 | –63.7 |
| 338-C0002L- | ||||||
| 1X-2, 103.5 | 279.2 | 240,886 | 12.0 | 6.1 | 13,296 | –65.6 |
| 1X-5, 92 | 281.8 | 215,812 | 7.4 | 6.6 | 15,412 | –65.6 |
| 3X-3, 130 | 298.7 | 243,900 | 8.4 | 7.9 | 14,964 | –66.6 |
| 4X-1, 93 | 306.4 | 174,490 | 9.8 | 5.3 | 11,565 | –63.5 |
| 5X-6, 56.5 | 320.6 | 186,728 | 12.6 | 3.7 | 11,435 | –63.3 |
| 6X-6, 16 | 328.8 | 216,266 | 17.3 | 2.8 | 10,770 | –64.3 |
| 7X-3, 0 | 335.4 | 274,400 | 12.5 | 6.0 | 14,782 | –63.6 |
| 8X-8, 24 | 351.2 | 52,734* | 2.6* | 0.9* | 15,183 | –58.3 |
| 9X-6, 55 | 357.3 | 216,637 | 13.2 | 3.4 | 13,001 | –62.7 |
| 10X-2, 87 | 364.5 | 205,789 | 13.1 | 3.9 | 12,134 | –62.5 |
| 11X-2, 36 | 373.6 | 216,444 | 22.1 | 2.1 | 8,971 | –62.0 |
| 12X-8, 51 | 388.9 | 220,027 | 78.6 | 0.6 | 2,780 | –62.0 |
| 13X-3, 105 | 394.6 | 241,100 | 68.9 | 1.0 | 3,451 | –61.2 |
| 14X-4, 0 | 403.5 | 171,595 | 74.4 | ND | 2,308 | –63.3 |
| 15X-5, 0 | 412.6 | 255,824 | 98.7 | ND | 2,592 | –58.9 |
| 16X-6, 27.5 | 425.3 | 224,389 | 70.2 | 0.9 | 3,159 | –62.1 |
| 17X-6, 119 | 434.7 | 296,252 | 78.1 | 0.9 | 3,748 | –61.5 |
| 18X-2, 29 | 439.7 | 1,790 | 1.1 | ND | 1,696 | –56.4 |
| 19X-5, 102.5 | 453.2 | 130,036 | 40.8 | 0.4 | 3,158 | –58.3 |
| 20X-7, 20.5 | 464.7 | 121,826 | 29.7 | ND | 4,098 | –58.9 |
| 21X-5, 96 | 472.0 | 72,599 | 15.0 | ND | 4,846 | –59.8 |
| 22X-5, 41 | 479.6 | 232,135 | 68.5 | 0.7 | 3,351 | –59.0 |
| 24X-2, 21 | 497.1 | 210,184 | 48.5 | 0.5 | 4,290 | –61.4 |
* = the data of measurement was not saved, and the data were acquired by remeasurement. Based on the experiment for confirmation, the concentrations decreased to 70%−80% of original concentration, but the hydrocarbon ratio was preserved in the original ratio. ND = not detected. — = not enough methane to measure δ13C-CH4. VPDB = Vienna Peedee belemnite.
Previous | Close | Next | Top of page