Table T5. Concentrations of light hydrocarbon and nonhydrocarbon gases in VAC samples of core gas void, Hole 1246B.
Core, section,
interval (cm)
Depth
(mbsf)
C1
(ppmv)
C2
(ppmv)
C3
(ppmv)
i-C4
(ppmv)
n-C4
(ppmv)
i-C5
(ppmv)
n-C5
(ppmv)
CO2
(ppmv)
O2
(ppmv)
N2
(ppmv)
C1/C2
204-1246B-











3H-3, 20 17.40 926,788 8.5




7,353 8,670 35,729 109,034
4H-1, 97 24.67 935,966 9.0 6.7



13,845 5,510 22,577 104,344
5H-3, 62 36.82 936,565 12.5




13,393 5,459 21,845 75,166
6H-4, 71 47.81 964,256 18.3




3,409 2,120 3,588 52,807
7H-3, 1 55.10 959,957 13.0




7,750 1,117 1,530 73,843
8H-4, 5 66.25 969,246 21.7




2,553 675 931 44,584
9H-2, 1 72.42 957,787 15.5







61,713
10H-1, 100 81.70 962,084 17.1







56,361
11H-2, 33 92.03 958,690 10.3







93,531
12H-2, 100 102.20 956,954 37.1




9,345 1,132 1,074 25,801
13H-1, 149 110.69 960,526 357.1




9,637 991 949 2,690
14H-2, 102 121.22 946,392 399.2 150.9



18,688 1,312 1,161 2,371
15H-2, 0 123.75 952,490 493.4 181.8 27.4


12,808 1,842 2,067 1,930
15H-5, 24 128.49 949,495 539.0 213.0 37.8

8.7 17,463 1,551 1,584 1,762
16H-4, 73 135.03 953,243 636.0 185.6 28.3


16,124 771 1,165 1,499

Note: C1 = methane, C2 = ethane, C3 = propane, i-C4 = iso-butane, n-C4 = normal butane, i-C4 = iso-pentane, n-C5 = normal pentane, CO2 = carbon dioxide, O2 = oxygen, N2 = nitrogen.