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Table T8. Concentrations of hydrocarbon gases in headspace gas samples, Hole U1381C.

Core, section,
interval (cm)
Depth
(mbsf)
Methane
(ppmv)
Ethane
(ppmv)
Propane
(ppmv)
344-U1381C-
1H-2, 0–5 1.50 262 256 223
1H-4, 0–5 4.50 4.36 1.77 ND
1H-6, 0–5 7.50 6.30 2.25 ND
2H-3, 0–5 11.10 3.09 ND ND
2H-5, 0–5 14.10 5.33 ND ND
2H-7, 0–5 17.10 4.48 ND ND
3H-3, 0–5 20.60 5.16 ND ND
3H-5, 0–5 23.60 3.69 ND ND
3H-7, 0–5 26.60 3.80 ND ND
4H-4, 0–5 31.60 5.14 ND ND
4H-6, 0–5 34.60 5.88 ND ND
5H-4, 0–5 41.12 6.80 ND ND
5H-7, 0–5 45.62 5.91 ND ND
6H-4, 0–5 50.66 5.73 ND ND
6H-7, 0–5 55.16 4.91 ND ND
7H-4, 0–5 60.10 4.39 ND ND
7H-7, 0–5 64.60 4.40 ND ND
8H-4, 0–5 69.62 4.05 ND ND
8H-7, 0–5 74.14 4.11 ND ND
9H-4, 0–5 79.10 4.21 ND ND
9H-7, 0–5 83.60 3.58 ND ND
10H-3, 0–5 87.10 3.10 ND ND
10H-4, 0–5 88.60 3.09 ND ND
10H-6, 0–5 91.60 3.14 ND ND
10H-7, 0–5 93.10 3.58 ND ND
11H-2, 0–5 96.60 3.44 ND ND
11H-4, 0–5 98.10 3.53 ND ND
11H-6, 0–5 101.10 ND ND ND
11H-7, 0–5 102.60 2.13 ND ND

ND = not detected.

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