Table T10. Composition of gas samples from PCS experiments, Holes 1245B and 1245C.
Sample
Volume
(mL)
C1
(ppm)
C2
(ppm)
C3
(ppm)
i-C4 (ppm)
n-C4 (ppm)
i-C5 (ppm)
n-C5 (ppm)
O2
(ppm)
N2
(ppm)
CO2 (ppm)
C1/C2
204-1245B-17P (147.1 mbsf)









G1 35 162,032 255 77.9



532,114 179,217 661 427
G2 230 914,168 2,388 226 20.9 19.7

401 61,760 1,039
G3 360 959,519 2,293 276 28.0 26.5

89 14,400 2,370
G4 470 841,609 1,867 346 34.2 30.2

5,004 56,562 3,051
G5 290 891,726 1,947 378 39.6 36.7

1,828 82,777 5,422
G6 120 739,309 1,649 305 29.9 29.3

7,401 105,229 3,908
G7 195 688,167 1,778 406 44.9 40.0

63,930 219,608 4,406
204-1245B-33P (291.2 mbsf)









G1 145 815,141 185 38.3



23,239 159,993 3,404 9,366
G2 200 954,143 85.9 6.4



584 28,592 1,339
G3 200 959,964 72.0 9.0



317 22,379 1,599
G4 280 964,083 80.5 12.9



281 18,982 2,470
G5 120 956,861 87.1 13.9



578 25,174 5,714
G6 120 954,431 88.3 14.6



1,510 20,389 4,480
204-1245C-3P (17.0 mbsf)









G1 315 700,557 14.4 8.5



24,385 267,649 2,475 21,187
204-1245C-8P (57.0 mbsf)









G1 70 450,834 6.1




87,858 456,942 976 32,594
G2 220 896,327 5.0




11,002 79,838 869
G3 320 870,778 148 8.8
5.7

20,647 83,941 793
G4 320 887,127 6.0




11,134 76,030 885
G5 210 899,704 6.3




5,821 65,291 2,096
G6 150 887,386 16.0




4,470 62,667 2,509
G7 80 880,800 7.7




5,652 71,857 2,677
G8 90 850,832 8.1




6,677 76,732 2,759
1245C-16P (120.0 mbsf)









G1 110 435,628 53.4 9.4



57,711 497,409 761 3,372
G2 210 909,066 172 17.6



10,046 58,948 567
G3 420 961,719 228 19.1



95 9,206 322
G4 600 962,915 230 18.6



696 8,437 259
G5 350 944,449 233 17.5



7,452 21,038 366
G6 340 949,772 245 18.4



5,339 17,380 310
G7 350 923,146 216 19.6



2,985 12,514 279
G8 420 953,261 279 19.0



2,173 10,454 301
G9 440 952,527 255 18.6



1,829 8,895 309
G10 390 941,006 258 18.8



7,382 21,831 375
G11 340 951,346 263 20.1



3,345 12,881 384
G12 480 934,755 258 17.5



10,025 23,803 385
G13 370 957,017 290 17.7



2,012 8,399 402
G14 390 955,475 267 15.3



1,850 8,947 331
G15 720 959,518 276 19.6



760 3,852 324
G16 600 941,737 284 19.5



6,949 13,277 447
G17 940 922,488 285 21.2



11,771 26,376 459
G18 1,010 948,264 306 18.9



3,636 9,736 536
G19 1,015 954,929 298 16.0



1,011 5,831 703
G20 970 951,118 311 14.2



802 5,441 866
G21 1,070 954,353 310 18.6



107 5,172 1,215
G22 870 936,476 292 23.8



137 6,384 1,227
G23 990 954,042 314 19.1



164 6,432 1,698
G24 1,050 928,148 330 21.8



5,523 30,934 2,239
G25 970 941,091 301 23.1



2,784 17,927 3,217
G26 730 916,747 290 24.4



7,000 40,721 3,443
G27 950 924,615 302 23.0



1,996 34,843 4,962
G28 910 905,325 297 23.3



6,324 50,350 6,093
G29 420 902,677 317 21.1



5,676 53,774 7,291
G30 190 912,392 354 30.8



1,156 20,435 13,608
G31 410 909,907 366 32.0



1,486 23,965 14,481

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