Table T8. Concentrations of light hydrocarbon and nonhydrocarbon gases in VAC samples of core gas voids, Holes 1245B, 1245C, and 1245D.
Core, section,
interval (cm)
Depth
(mbsf)
C1
(ppmv)
C2
(ppmv)
C3
(ppmv)
i-C4
(ppmv)
n-C4
(ppmv)
i-C5
(ppmv)
n-C5
(ppmv)
H2S
(ppmv)
CO2
(ppmv)
O2
(ppmv)
N2
(ppmv)
C1/C2
204-1245B-












3H-6, 46 26.96 936,942 5.7 3.2




23,478 224 19,601 165,830
4H-1, 135 29.85 940,837 5.3





20,024 278 25,114 176,849
6H-2, 50 49.50 562,155 13.9 1.9




57,723 8,289 298,502 40,327
7H-4, 78 61.22 965,611 19.9





5,250 190 6,191 48,548
8H-3, 80 70.22 883,221 14.3





7,477 9,528 73,285 61,591
10H-1, 133 86.83 965,871 14.0





7,914 213 7,526 69,238
11H-3, 97 98.44 965,618 10.7





7,855 191 7,675 90,160
12H-5, 81 111.28 969,764 7.2





12,375 110 4,911 133,945
13H-3, 33 117.09 941,924 110.6 5.7




3,989 1,275 36,421 8,516
14H-3, 50 126.10 827,709 269.7 53.1




24,087 3,621 120,542 3,069
16X-2, 57 139.57 891,225 2,935.6 377.0 54.0 73.0 11.9




304
16X-2, 122 140.22 948,659 3,480.0 574.0 85.4 109.2 15.8

22,683
11,093 273
18X-2, 3 150.63 939,130 2,643.0 532.1 61.5 65.1 10.1

25,842
12,345 355
19X-3, 121 161.21 918,094 5,394.0 9,794.0 3,333.0 385.0 72.5

31,134
16,270 170
20X-5, 99 173.49 892,334 2,318.0 1,548.0 450.5 197.9 85.0

36,576 2,320 86,117 385
21X-4, 15 180.65 965,919 1,136.0 576.1 99.7 72.7 7.2




850
22X-4, 80 190.70 977,833 679.7 318.0 66.0 64.1 24.2 6.4
3,561 751 7,224 1,439
23X-1, 50 195.20 643,870 459.4 210.7 38.9 43.9 15.8 5.8
188,550 3,696 46,789 1,401
26X-2, 91 225.99 971,736 153.4 30.7 4.9



6,232 130 1,080 6,333
28X-4, 139 248.82 898,915 99.9 5.5




17,951 96 1,065 8,999
29X-2, 81 254.91 966,721 101.3 4.6 5.9



12,091 119 1,074 9,539
29X-3, 16 255.76 970,926 105.2 25.8







9,229
29X-5, 15 258.75 981,051 92.4 7.4 5.9



4,885 64 776 10,616
30X-6, 84 270.48 937,660 101.1 6.8 5.0



15,511 4,771 20,246 9,279
31X-2, 48 273.88 957,410 92.3 13.6




16,996 124 1,283 10,372
32X-2, 94 283.94 960,673 95.4 11.0




15,681 138 1,302 10,066
34X-6, 68 301.38 894,180 59.8 2.0




4,815 117 1,311 14,953
35X-5, 0 306.80 856,612 62.8 5.9







13,640
37X-4, 112 325.62 966,746 89.6 9.3




11,395 2,169 1,473 10,788
38X-5, 125 336.95 961,609 98.4 6.9




16,284 665 1,080 9,770
40X-5, 0 354.87 590,713 50.0 6.5




2,619 87,056 324,228 11,826
41X-5, 1 363.34 952,457 108.1 7.7




16,912 416 23,985 8,808
42X-2, 48 370.00 962,674 121.3 10.9




20,270 239 9,290 7,934
44X-1, 39 387.79 947,680 154.1 0.0




29,245 307 11,802 6,150
45X-4, 17 401.77 952,909 135.3 14.4 10.1



11,600 357 18,281 7,043
47X-4, 1 411.23 964,361 142.3 15.1 8.8



10,921 163 7,144 6,777
48X-3, 77 420.07 622,715 125.6 15.4 9.3



12,235 77,028 288,860 4,958
49X-4, 3 430.14 953,359 220.8 32.8 19.1



15,346 2,563 5,107 4,318
50X-1, 130 436.90 829,521 219.0 36.1 17.8



21,069 30,516 110,859 3,789
50X-4, 40 440.13 796,911 220.2 45.4 25.3



18,614 37,480 139,494 3,619
51X-3, 125 449.45 956,303 277.8 53.6 23.9



17,033 1,540 1,593 3,443
52X-3, 140 459.10 970,149 281.9 55.8 28.6



6,495 487 1,161 3,442
53X-5, 14 469.90 962,618 314.3 55.3 23.1






3,063
204-1245C-












5H-1, 47 28.97 928,871 5.1 7.9




29,371 2,677 18,564 181,066
5H-7, 37 37.83 725,273 4.9 6.9




24,317 49,792 187,843 148,015
7H-1, 126 48.76 968,029 21.8





6,169 228 1,053 44,446
9H-5, 61 65.61 963,272 8.4 1.7




9,841 458 1,144 114,403
10H-4, 100 72.97 959,006 18.1 1.2




2,956 783 5,650 53,101
11H-5, 105 83.85 963,897 18.7





3,832 467 1,188 51,600
13H-4, 26 101.13 942,990 4.6





16,719 646 2,529 205,444
14H-3, 70 110.20 962,399 23.7 10.7




5,255 1,969 1,739 40,556
15X-5, 123 122.05 880,627 77.2 82.6 6.8



49,192 8,429 32,105 11,401
17X-2, 50 124.00 950,254 428.0 110.9 5.5



15,702 1,204 1,995 12,303
19X-2, 12 131.62 912,946 4,554.4 1,211.7 274.4 416.4 134.0

46,053 1,880 6,530 200
20X-3, 3 141.73 947,880 2,774.0 515.7 45.4 52.8 6.8

14,319 1,916 1,557 342
21X-2, 131 151.21 923,161 3,651.4 966.5 139.2 155.8 42.1

46,128 2,173 1,610 253
22X-5, 49 164.39 964,767 3,092.3 1,282.5 232.4 228.9 75.7

7,878 318 825 264
23X-3, 70 171.10 951,404 2,786.4 1,148.9 190.7 223.7 80.8

22,521 798 1,006 341
24H-6, 69 185.29 935,185 1,909.3 861.1 170.8 174.2 66.6

32,448 1,677 2,491 490
25H-3, 63 190.23 756,895 897.1 373.0 36.9 38.1


30,656 41,050 157,698 844
26H-1, 135 192.45 952,034 831.6 287.0 26.7 22.0 7.7

15,269
618 1,145
28H-1, 113 198.03 887,177 429.3 116.4 13.2 12.7


5,025 512 961 2,067
204-1245D-












3H-1, 12 14.62 753,607 4.9




1,478.0 15,851 40,864 179,913 154,428
3H-7, 51 24.01 902,132 5.4





30,030 8,263 37,866 166,445

Note: C1 = methane, C2 = ethane, C3 = propane, i-C4 = isobutane, n-C4 = normal butane, i-C5 = iso-pentane, n-C5 = normal pentane, H2S = hydrogen sulfide, CO2 = carbon dioxide, O2 = oxygen, N2 = nitrogen.