Table T6. Concentrations of methane, ethane, ethylene, and propane in headspace gas, Holes 1249B, 1249C, and 1249F.
Core, section,
interval (cm)
Depth
(mbsf)
C1
(ppmv)
C2
(ppmv)
C2=
(ppmv)
C3
(ppmv)
C1/C2
204-1249B-





2A-1, 75-80 30.5 5,813 14.6
4.4 398
2A-2, 0-5 30.7 564,829 1,426
36.6 396
3A-2, 0-5 35.0 15,318 39.5
13.9 388
4A-1, 53-58 39.4 9,188 26.7
18.7 344
5A-1, 73-78 44.1 12,414 15.5
11.3 801
6A-2, 78-83 49.7 13,206 7.0 0.4 7.7 1,887
7A-1, 37-42 52.8 5,529 2.4

2,266
8A-2, 61-66 59.0 1,419 0.5

2,782
9A-1, 45-50 66.4 6,140 1.2 0.6
5,339
204-1249C-





1H-1, 55-60 0.6 4,613 12.1

381
1H-1, 125-130 1.3 31,602 40.7

776
2H-1, 0-5 2.0 6,756 20.8

325
2H-2, 0-5 3.4 2,507 9.6

261
3H-1, 0-5 5.0 220,058 307

716
3H-2, 10-15 6.7 268,569 388

693
4H-1, 0-5 14.5 542,810 1,271
9.4 427
5H-5, 0-5 27.8 16,421 49.3
33.0 333
7H-4, 0-5 37.3 13,541 49.7
25.6 272
8H-3, 33-38 47.8 12,033 15.8
18.6 762
9H-3, 0-5 57.0 17,717 6.7
8.2 2,644
11H-4, 99-104 69.1 10,924 2.8

3,972
12H-2, 0-5 75.9 7,108 1.6

4,415
13H-2, 74-75 86.2 10,732 2.8 0.6 6.2 3,860
204-1249F-





5H-1, 0-5 15.5 3,369 10.2

331
6X-1, 0-5 16.5 189,786 360
4.5 527
7H-2, 0-5 22.4 13,767 47.5
20.1 290
8H-2, 42-47 32.2 2,291 10.5
5.1 218
8H-2, 107-112 32.9 6,537 18.5
4.3 353
9H-3, 0-5 42.2 8,756 18.3
8.3 478
10H-3, 0-5 52.2 14,729 22.2
31.5 663
12H-3, 0-5 63.4 8,002 5.2
6.2 1,551
15H-3, 0-5 75.2 30,303 12.6
5.9 2,407
16H-3, 0-5 85.7 15,702 4.4 0.7 10.8 3,610

Note: C1 = methane, C2 = ethane, C2= = ethylene, C3 = propane.