Table T12. Methane, ethane, and propane concentrations as obtained by headspace analysis, Holes 1146A and 1146C.
| Core,
section, interval (cm) |
Depth | C1/C2 | C1 (ppmv) |
C2 (ppmv) |
C3 (ppmv) |
|
|---|---|---|---|---|---|---|
| (mbsf) | (mcd) | |||||
| 184-1146A- | ||||||
| 1H-3, 0-5 | 3.0 | 3.00 |
—
|
3 | 0 | 0.0 |
| 2H-4, 0-5 | 8.4 | 9.35 |
—
|
6 | 0 | 0.0 |
| 3H-4, 0-5 | 17.9 | 19.55 |
—
|
8 | 0 | 0.0 |
| 4H-4, 0-5 | 27.4 | 30.00 |
—
|
10 | 0 | 0.0 |
| 5H-4, 0-5 | 36.9 | 40.05 |
—
|
9 | 0 | 0.0 |
| 6H-4, 0-5 | 46.4 | 49.65 |
—
|
10 | 0 | 0.0 |
| 7H-4, 0-5 | 55.9 | 58.40 |
—
|
8 | 0 | 0.0 |
| 8H-4, 0-5 | 65.4 | 68.40 |
—
|
8 | 0 | 0.0 |
| 9H-4, 0-5 | 74.9 | 78.50 |
—
|
8 | 0 | 0.0 |
| 10H-4, 0-5 | 84.4 | 88.20 |
—
|
10 | 0 | 0.0 |
| 11H-4, 0-5 | 93.9 | 99.25 |
—
|
11 | 0 | 0.0 |
| 12H-4, 0-5 | 103.4 | 109.20 |
—
|
11 | 0 | 0.0 |
| 13H-4, 0-5 | 112.9 | 119.42 |
—
|
14 | 0 | 0.0 |
| 14H-4, 0-5 | 122.4 | 129.75 |
—
|
12 | 0 | 0.0 |
| 15H-4, 0-5 | 131.9 | 140.10 |
—
|
12 | 0 | 0.0 |
| 16H-4, 0-5 | 141.4 | 150.25 |
—
|
12 | 0 | 0.0 |
| 17H-4, 0-5 | 150.9 | 161.25 |
—
|
13 | 0 | 0.0 |
| 18H-4, 0-5 | 160.4 | 170.45 |
—
|
16 | 0 | 0.0 |
| 19H-4, 0-5 | 169.9 | 180.05 |
—
|
13 | 0 | 0.0 |
| 20H-4, 0-5 | 179.4 | 189.83 |
—
|
16 | 0 | 0.0 |
| 21H-4, 0-5 | 188.9 | 201.25 |
—
|
17 | 0 | 0.0 |
| 22X-4, 0-5 | 198.4 | 211.45 |
—
|
26 | 0 | 0.0 |
| 23X-4, 0-5 | 207.5 | 221.40 |
—
|
23 | 0 | 0.0 |
| 24X-4, 0-5 | 217.2 | 231.90 |
—
|
29 | 0 | 0.0 |
| 26X-4, 0-5 | 236.6 | 251.15 |
—
|
82 | 0 | 0.0 |
| 27X-4, 0-5 | 246.2 | 262.30 |
—
|
131 | 0 | 0.0 |
| 28X-4, 0-5 | 255.8 | 273.44 |
—
|
104 | 0 | 0.0 |
| 29X-4, 0-5 | 265.4 | 283.50 |
—
|
276 | 0 | 0.0 |
| 30X-4, 0-5 | 275.1 | 293.55 |
—
|
396 | 0 | 0.0 |
| 31X-4, 0-5 | 284.7 | 303.15 |
—
|
1,089 | 0 | 0.0 |
| 32X-4, 0-5 | 294.3 | 312.75 |
—
|
1,499 | 0 | 0.0 |
| 33X-4, 0-5 | 304.0 | 322.75 |
—
|
1,677 | 0 | 0.0 |
| 34X-4, 0-5 | 313.6 | 332.55 |
—
|
2,244 | 0 | 0.0 |
| 35X-4, 0-5 | 323.2 | 342.90 |
—
|
4,211 | 0 | 0.0 |
| 36X-4, 0-5 | 332.9 | 355.00 |
—
|
2,344 | 0 | 0.0 |
| 37X-4, 0-5 | 342.6 | 365.35 |
—
|
4,465 | 0 | 0.0 |
| 38X-4, 0-5 | 352.2 | 375.95 |
—
|
4,885 | 0 | 0.0 |
| 39X-4, 0-5 | 361.8 | 385.60 |
—
|
9,968 | 0 | 0.0 |
| 40X-4, 0-5 | 371.4 | 396.20 |
—
|
9,917 | 0 | 0.0 |
| 41X-4, 0-5 | 381.0 | 406.62 |
—
|
7,783 | 0 | 0.0 |
| 42X-4, 0-5 | 390.6 | 414.92 |
—
|
11,496 | 0 | 0.0 |
| 43X-4, 0-5 | 400.2 | 424.67 |
—
|
13,871 | 0 | 0.0 |
| 44X-4, 0-5 | 409.8 | 433.87 |
—
|
8,734 | 0 | 0.0 |
| 45X-4, 0-5 | 419.4 | 443.82 |
—
|
13,665 | 0 | 0.0 |
| 46X-4, 0-5 | 429.0 | 454.92 |
—
|
19,239 | 0 | 0.0 |
| 47X-4, 0-5 | 438.6 | 466.52 |
—
|
7,917 | 0 | 0.0 |
| 48X-4, 0-5 | 448.2 | 476.41 |
—
|
16,051 | 0 | 0.0 |
| 49X-4, 0-5 | 457.9 | 485.04 |
—
|
17,788 | 0 | 0.0 |
| 50X-4, 0-5 | 467.5 | 494.19 |
—
|
27,016 | 0 | 0.0 |
| 51X-4, 0-5 | 476.9 | 504.09 |
—
|
13,275 | 0 | 0.0 |
| 52X-4, 0-5 | 486.5 | 514.94 |
—
|
18,316 | 0 | 0.0 |
| 53X-4, 0-5 | 496.1 | 525.99 |
—
|
5,400 | 0 | 0.0 |
| 54X-4, 0-5 | 505.7 | 536.44 | 2,461 | 24,120 | 10 | 0.0 |
| 55X-4, 0-5 | 515.3 | 545.94 | 1,475 | 23,595 | 16 | 0.0 |
| 56X-4, 0-5 | 524.9 | 557.95 | 934 | 56,883 | 61 | 0.0 |
| 57X-4, 0-5 | 534.4 | 568.90 | 740 | 53,093 | 72 | 1.1 |
| 58X-4, 0-5 | 543.9 | 579.77 | 659 | 45,609 | 69 | 0.0 |
| 59X-4, 0-5 | 553.6 | 589.33 | 587 | 74,735 | 127 | 2.2 |
| 60X-4, 0-5 | 563.2 | 599.34 | 660 | 85,205 | 129 | 2.6 |
| 61X-4, 0-5 | 572.8 | 608.79 | 478 | 73,802 | 155 | 7.3 |
| 62X-4, 0-5 | 582.5 | 619.29 | 375 | 40,252 | 107 | 7.3 |
| 63X-4, 0-5 | 592.1 | 628.44 | 422 | 31,493 | 75 | 5.5 |
| 64X-4, 0-5 | 601.7 | 637.69 | 345 | 5,627 | 16 | 1.8 |
| 184-1146C- | ||||||
| 53X-4, 0-5 | 502.0 | 529.09 | 3,140 | 24,802 | 8 | 0.0 |
| 54X-4, 0-5 | 511.6 | 539.99 | 1,643 | 28,422 | 17 | 0.0 |
| 55X-4, 0-5 | 521.2 | 549.50 | 1,126 | 37,030 | 33 | 0.0 |
| 56X-4, 0-5 | 530.9 | 560.95 | 780 | 37,668 | 48 | 0.0 |
| 57X-4, 0-5 | 540.5 | 573.25 | 685 | 43,408 | 63 | 1.2 |
| 58X-4, 0-5 | 550.1 | 586.05 | 618 | 40,199 | 65 | 0.0 |
| 59X-4, 0-5 | 559.8 | 595.41 | 508 | 34,114 | 67 | 2.6 |
| 60X-4, 0-5 | 569.4 | 605.44 | 450 | 28,680 | 64 | 2.9 |
| 61X-4, 0-5 | 579.1 | 615.04 | 456 | 47,839 | 105 | 5.6 |
| 62X-4, 0-5 | 588.7 | 626.34 | 438 | 56,987 | 130 | 9.0 |
| 63X-4, 0-5 | 598.3 | 635.89 | 399 | 32,544 | 82 | 6.7 |
Notes: C1 = methane, C2 = ethane, C3= propane. — = no C2.