Table T5. Concentration of light hydrocarbon and nonhydrocarbon gases in VAC samples of core gas voids, Hole 1252A.
Core, section, interval (cm)
Depth (mbsf)
C1
(ppmv)
C2 (ppmv)
C3 (ppmv)
i-C4 (ppmv)
n-C4 (ppmv)
CO2 (ppmv)
O2
(ppmv)
N2
(ppmv)
C1/C2
204-1252A-









2H-7, 63 14.53 19,067





819,926
3H-2, 98 15.63 2,028





832,425
3H-3, 13 16.28 900,674 45.0


25,572 1,337 16,648 20,024
3H-3, 31 16.46 917,435 7.1


20,815 817 6,433 128,853
3H-6, 82 21.47 912,403 7.4


27,472 984 4,600 124,136
4H-1, 121 25.11 874,133 6.0


25,292 6,384 47,945 146,421
4H-2, 25 25.65 914,670 11.3


20,670 756 14,198 81,088
4H-6, 123 32.51 924,764 7.3


25,583 547 1,138 127,554
5H-2, 74 34.73 648,783 9.4


29,358

69,019
5H-3, 37 35.86 920,889 7.7


24,483 37,746 146,321 119,907
5H-5, 90 39.39 934,808 6.8


18,839 549 1,029 138,490
5H-6, 70 40.69 9,128



186,282 728,168

6H-1, 40 43.30 2,696







6H-2, 57 44.97 902,781 7.0


17,193 387 46,559 129,338
6H-4, 88 48.28 921,897 10.2


11,143 224 37,168 90,205
6H-7, 13 52.03 918,156 8.2


34,438 198 8,825 112,381
7H-2, 19 54.09 932,670 9.3


21,603 186 10,333 99,858
7H-6, 44 60.34 933,935 9.5


21,197 158 7,693 98,206
8H-1, 98 62.88 913,106 19.5 11.8

19,875 260 31,980 46,874
8H-3, 123 66.13 607,083 23.2


7,011 64,746 319,301 26,190
9H-2, 64 73.54 933,852 16.1


14,084 266 17,653 58,112
9H-7, 14 80.38 931,280 20.6


20,188 242 8,144 45,274
10H-3, 115 84.15 966,802 41.8 12.2

8,803 29,939 116,426 23,146
10H-3, 115 84.15 944,856 26.6


8,774 193 8,109 35,481
10H-5, 0 86.00 945,805 23.2


7,548 173 12,593 40,785
10H-7, 34 89.34 947,965 34.9


8,760 190 5,527 27,186
11H-1, 126 91.66 938,123 32.8


16,017 236 11,717 28,645
11H-3, 0 93.40 945,540 32.8


10,930 184 6,932 28,792
11H-7, 0 98.85 951,298 159 4.4

3,937 293 7,312 5,973
12H-1, 106 100.96 898,967 57.0 18.1

12,099 445 53,906 15,766
12H-3, 78 103.68 949,109 125


4,319 257 11,687 7,580
12H-6, 116 108.46 945,806 59.9


5,007 232 11,173 15,795
13H-1, 130 110.70 948,618 157 18.1

8,605 235 6,665 6,061
14H-1, 70 119.60 949,706 74.7


7,073 210 7,506 12,719
14H-3, 60 122.50 952,980 81.5


4,367 204 6,401 11,694
14H-6, 0 126.09 960,873 123 9.1




7,844
15X-4, 72 130.10 943,733 76.5


7,692 194 6,118 12,341
15X-5, 54 131.42 946,017 80.3


6,459 182 5,157 11,777
16X-2, 0 136.20 935,023 105


16,682 263 8,885 8,912
16X-3, 115 138.85 550,157 63.0


5,629 79,145 363,463 8,731
16X-4, 45 139.65 948,048 95.9


6,961 282 10,477 9,888
17X-2, 0 145.90 946,698 97.7 16.7

8,850 197 7,365 9,692
17X-4, 16 149.06 947,754 104


10,265 205 6,870 9,108
17X-5, 0 150.40 947,553 101


8,449 154 6,099 9,397
18X-2, 0 155.60 948,061 96.8


7,271 252 10,083 9,794
18X-2, 116 156.76 953,756 95.1


4,790 241 9,032 10,033
18X-4, 0 158.60 950,008 106


8,137 169 5,679 8,977
20X-2, 47 175.47 938,237 120 18.2

5,497 449 18,551 7,806
20X-4, 53 178.53 934,677 156


15,957 312 11,206 6,011
21X-4, 64 188.20 921,252 260 20.8

28,805 351 12,275 3,547
22X-4, 0 197.20 899,890 211


11,050 1,019 43,685 4,264
22X-6, 133 201.53 895,186 192


6,293 1,286 55,370 4,656
23X-2, 78 203.76 798,300 214


6,225 21,201 141,088 3,726
23X-3, 130 205.78 953,276 242


7,689 200 6,041 3,942
23X-4, 20 206.18 849,971 296


26,539 3,444 75,598 2,870
24X-3, 114 215.34 381,182 99.7


3,590 446,933
3,824
25X-6, 15 228.55 934,184 313 18.3

12,443 338 13,564 2,982
26X-2, 42 232.42 932,142 357


23,561 223 6,802 2,615
26X-4, 30 235.30 961,459 406 10.2




2,371
26X-6, 119 239.19 783,652 309


25,532 19,615 134,907 2,538
27X-2, 1 241.71 944,808 333


13,451 240 8,837 2,840
27X-3, 110 244.30 917,583 302


8,102 767 31,883 3,038
27X-5, 25 246.42 953,196 289


6,739 95 1,382 3,298
28X-3, 3 252.87 903,756 420 10.5




2,152
28X-6, 2 257.36 949,190 286


9,490 160 2,950 3,319

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