Table T12. Concentrations of CH4 in the headspace gases, Site 1149.

Core, section,
interval (cm)
Depth
(mbsf)
CH4
(ppmv)
185-1149A-    
1H-2, 0-5 1.50 2
2H-5, 0-5 10.20 3
3H-5, 0-5 19.70 3
4H-5, 0-5 29.20 5
5H-5, 0-5 38.70 5
7H-5, 0-5 57.70 4
8H-4, 0-5 65.70 4
9H-4, 0-5 75.20 3
10H-4, 0-5 84.70 4
11H-4, 0-5 94.20 3
12H-4, 0-5 103.75 3
13H-4, 0-5 113.20 3
14H-3, 0-5 121.20 4
15H-5, 0-5 133.70 3
16H-4, 0-5 141.70 2
17H-2, 0-5 148.20 2
18H-4, 0-5 160.70 2
20X-CC, 0-5 171.30 2
21X-1, 0-5 179.10 2
185-1149B-    
2R-1, 0-5 160.60 2
3R-5, 0-5 176.30 2
12R-CC, 0-5 245.40 2
14R-CC, 0-5 263.90 2

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