Table T9. Concentrations of CH4 in headspace gas, Hole 1209A.
Core, section,
interval (cm)
Depth
(mbsf)
CH4
(ppmv)
198-1209A-

1H-5, 0-5 6.00 1.9
2H-5, 0-5 14.20 2.3
3H-5, 0-5 23.70 2.1
4H-5, 0-5 33.20 2.2
5H-5, 0-5 42.70 2.0
6H-5, 0-5 52.20 1.9
7H-5, 0-5 61.70 2.3
8H-5, 0-5 71.20 1.9
9H-5, 0-5 80.70 2.2
10H-5, 0-5 90.20 1.9
11H-5, 0-5 99.70 1.9
12H-5, 0-5 109.20 1.9
13H-5, 0-5 118.70 1.9
14H-5, 0-5 128.20 1.9
15H-5, 0-5 137.70 1.9
17H-5, 0-5 156.70 1.9
18H-4, 0-5 164.70 1.8
21H-2, 0-5 190.20 1.7
24H-5, 0-5 223.20 1.7
25H-5, 0-5 232.70 1.7
27X-2, 0-5 247.20 1.8