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Table T19. Hydrocarbon gas composition in headspace samples of sediments, Hole C0011B. (See table note.)

Core, section,
interval (cm) 		Depth
CSF (m) 		Concentration in headspace (ppmv) C1/C2 Concentration in interstitial water (µM)
Methane Ethane Propane Isobutane Methane Ethane Propane Isobutane
322-C0011B-
1R-1, 83.5–87.5 340.86 105 BD BD BD — 182 BD BD BD
2R-1, 124–128 350.76 166 BD BD BD — 59 BD BD BD
3R-1, 57–61 359.57 545 BD BD BD — 538 BD BD BD
4R-1, 136.5–140.5 366.39 341 BD BD BD — 182 BD BD BD
5R-4, 104–108 378.02 346 BD BD BD — 262 BD BD BD
6R-4, 16–20 388.31 477 BD BD BD — 289 BD BD BD
7R-2, 16–20 397.14 345 BD BD BD — 195 BD BD BD
8R-3, 0–4 404.61 781 BD BD BD — 294 BD BD BD
9R-1, 109–113 413.61 634 BD BD BD — 310 BD BD BD
10R-2, 130–134 424.73 697 1.9 BD BD 359 132 0.37 BD BD
11R-1, 136–140 432.88 1200 2.9 BD BD 411 514 1.25 BD BD
12R-5, 25–29 446.94 1170 3.0 BD BD 390 876 2.24 BD BD
13R-2, 137–141 453.30 1020 2.8 BD BD 360 1110 3.08 BD BD
14R-3, 29–33 463.14 2680 7.0 BD BD 381 1120 2.95 BD BD
15R-2, 109–113 471.95 1780 4.9 BD BD 359 1040 2.89 BD BD
16R-1, 137–141 478.19 1950 7.0 BD BD 280 863 3.08 BD BD
19R-2, 31–35 492.58 742 2.1 BD BD 345 1030 2.99 BD BD
21R-3, 0–4 502.28 3290 10.1 BD BD 325 1350 4.15 BD BD
23R-1, 69.5–74.5 521.12 2850 8.4 BD BD 337 2520 7.46 BD BD
24R-2, 0–4 530.49 1260 3.6 BD BD 354 1050 2.96 BD BD
25R-1, 42–46 539.84 1400 5.3 BD BD 266 1670 6.28 BD BD
26R-1, 118–122 550.20 1480 4.1 BD BD 362 2300 6.34 BD BD
27R-1, 82–86 559.34 1570 5.1 BD BD 311 1750 5.64 BD BD
28R-1, 142–146 569.44 3460 13.6 13.0 BD 254 1750 6.89 6.57 BD
30R-1, 134–138 581.76 285 BD BD BD — 257 BD BD BD
31R-1, 129–133 587.81 2370 8.5 9.4 BD 279 1850 6.64 7.33 BD
32R-4, 110.5–114.5 601.37 1430 7.0 11.0 BD 203 1030 5.07 7.93 BD
33R-1, 40–44 605.92 1490 6.5 8.7 BD 228 619 2.71 3.63 BD
35R-3, 99–103 628.12 3810 16.1 21.6 BD 237 2160 9.13 12.25 BD
36R-1, 62.5–66.5 634.65 1070 4.8 6.2 BD 222 1600 7.19 9.22 BD
37R-1, 125–129 644.69 1570 6.9 8.8 BD 228 2450 10.72 13.66 BD
38R-1, 135–139 654.37 1410 6.1 7.2 BD 232 2790 12.01 14.25 BD
39R-3, 138–142 666.72 1240 6.0 7.0 BD 207 1390 6.75 7.87 BD
40R-2, 137.5–141.5 674.80 3870 16.9 18.9 3.6 229 2970 12.98 14.52 2.74
41R-1, 1–5 678.53 2270 8.9 8.2 BD 256 1860 7.24 6.73 BD
42R-1, 134–138 681.86 3690 14.6 13.7 BD 253 3120 12.35 11.62 BD
43R-2, 49.5–53.5 685.87 1150 5.1 4.8 BD 226 2070 9.15 8.60 BD
44R-2, 64–68 691.07 866 3.4 BD BD 257 2940 11.46 BD BD
45R-2, 31–35 700.26 4140 17.2 15.8 BD 240 3450 14.38 13.17 BD
46R-1, 135.5–139.5 709.38 2120 10.5 10.5 BD 203 2410 11.84 11.86 BD
47R-1, 107–111 712.59 826 3.6 BD BD 227 2520 11.08 BD BD
48R-2, 49.5–53.5 722.52 1180 5.8 4.6 BD 203 2830 13.93 11.09 BD
49R-5, 101–105 734.59 2920 16.3 13.9 BD 179 3650 20.37 17.40 BD
50R-CC, 0–4 741.05 806 5.7 5.1 4.3 141 1020 7.26 6.45 5.50
51R-3, 75.5–79.5 750.49 1740 7.1 3.9 BD 244 4100 16.78 9.25 BD
52R-5, 115–119 763.32 4670 22.8 14.3 BD 205 3540 17.27 10.83 BD
54R-2, 91.5–95.5 772.55 937 5.3 BD 5.8 177 576 3.26 BD 3.54
55R-1, 46–50 779.48 1430 4.5 BD BD 319 4790 15.02 BD BD
56R-1, 53–57 844.51 3640 20.4 5.1 BD 179 7690 43.07 10.87 BD
57R-3, 118.5–122.5 850.43 1370 3.5 BD BD 396 2010 5.07 BD BD
58R-2, 120–124 858.33 4230 13.5 BD BD 313 1800 5.76 BD BD
59R-2, 69–73 867.46 1990 4.4 BD BD 450 1610 3.58 BD BD

Note: BD = below detection, — = not applicable.

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