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Table T11. Concentrations of hydrocarbon and CO2 gases in the void gas, Hole U1412A and U1412B.

Core, section,
interval (cm)		 Depth
(mbsf)		 Methane
(ppmv)		 Ethane
(ppmv)		 Propane
(ppmv)		 CO2
(ppmv) 		C1/C2+
344-U1412A-
4H-4, 50–51 29.93 820,000 16.4 1.6 5,190 45,700
4H-6, 50–51 32.13 813,000 16.0 1.6 4,980 46,200
5H-2, 50–51 33.93 781,000 14.9 1.4 3,020 48,000
5H-4, 50–51 36.77 823,000 16.4 1.6 4,610 45,700
5H-7, 50–51 39.58 837,000 16.5 1.6 4,000 46,200
6H-1, 50–51 42.50 773,000 14.2 1.0 1,700 50,800
7H-1, 50–51 50.00 841,000 16.8 1.2 3,390 46,600
9H-2, 50–51 64.87 835,000 29.6 1.0 4,440 27,300
9H-7, 50–51 71.11 849,000 56.1 ND 1,910 15,200
10H-2, 50–51 74.20 848,000 24.6 1.2 4,610 32,800
11H-4, 50–51 85.75 849,000 28.0 2.7 2,570 27,600
12H-2, 50–51 88.17 842,000 54.5 2.2 3,500 14,900
13H-4, 50–51 95.41 850,000 44.6 3.1 2,730 17,800
14H-3, 50–51 98.83 838,000 53.4 4.3 5,070 14,500
18X-3, 50–51 125.91 788,000 62.9 10.9 11,100 10,700
19X-2, 50–51 134.40 838,000 58.6 7.0 6,420 12,800
19X-4, 50–51 137.07 822,000 63.4 8.9 10,500 11,400
23X-4, 50–51 175.90 844,000 85.3 7.2 6,830 9,120
344-U1412B-
6X-3, 50–51 187.50 846,000 28.4 0.6 5,360 29,200
7X-3, 50–51 196.74 850,000 46.7 2.9 8,710 17,100

ND = not detected.

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