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Table T6. Headspace gas, Holes U1316A and U1316B.

Core,
section		 Depth
(mbsf)		 Safety CH4
(ppm)		 Safety C2H6
(ppm) 		Dissolved CH4
(µM)		 Adsorbed CH4
(µmol/g)		 Dissolved C2H6
(µM)		 Adsorbed C2H6
(µmol/g)		 Adsorbed propane
(µmol/g)
307-U1316A-
1H-3 4.4 1.7 BDL BDL 4.1E–04 BDL BDL BDL
2H-4 11.8 1.8 BDL BDL 4.2E–04 BDL BDL BDL
3H-4 21.3 1.7 BDL BDL 7.3E–04 BDL BDL BDL
4H-4 30.8 2.0 BDL BDL 3.0E–04 BDL BDL BDL
5H-4 40.3 1.8 BDL BDL 3.3E–04 BDL BDL BDL
6H-4 49.8 1.9 BDL BDL 2.5E–04 BDL BDL BDL
7H-2 56.3 3.8 BDL 0.063 8.0E–03 BDL 1.8E–04 BDL
8H-3 66.39 5.8 BDL 0.081 2.9E–03 BDL 1.1E–04 BDL
9X-3 78.8 69 2.6 ND ND ND ND ND
10X-3 79.73 157 6.0 51.5 1.22E–02 2.0 1.9E–04 BDL
11X-3 81.3 188 6.2 45.6 2.81E–02 1.5 9.9E–04 BDL
11X-4 83.61 269 9.5 62.9 ND 2.2 ND ND
12X-2 84.8 143 4.9 52.8 1.34E–02 1.8 3.4E–04 BDL
12X-CC 85.68 60.0 18.2 16.7 ND 5.2 ND ND
13X-3 90.8 222 7.8 97.7 1.37E–02 3.5 3.6E–04 BDL
15X-1 94.54 335 14.4 67.2 3.02E–02 2.9 3.3E–04 BDL
16X-4 103.5 637 10.0 230 9.89E–02 3.6 1.8E–03 4.0E–04
17X-1 108.77 1180 11.1 574 4.55E–03 5.4 4.5E–04 BDL
18X-4 116.8 2230 14.1 718 9.25E–02 4.6 9.1E–04 1.7E–04
19X-1 118.68 6020 31.8 1730 ND 9.1 ND ND
20X-2 119.65 4100 20.4 907 1.88E–01 4.5 1.5E–03 3.4E–04
20X-2 120.83 2050 18.8 808 ND 7.4 ND ND
21X-4 129.8 5950 28.7 2010 ND 9.7 ND BDL
307-U1316B-
1H-4 5 ND ND ND 4.81E–03 ND BDL BDL
2H-4 10.5 ND ND ND 1.66E–03 ND BDL BDL
3H-4 20 ND ND ND 1.59E–03 ND BDL BDL
4H-4 29.5 ND ND ND 8.24E–04 ND BDL BDL
5H-4 39 ND ND ND 3.85E–04 ND BDL BDL
6H-4 48.5 ND ND ND 2.37E–04 ND BDL BDL

Note: BDL = below detection limit, ND = not determined.

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