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Table T6. Concentrations of light hydrocarbon and nonhydrocarbon gases in core gas void samples, Holes U1325B and U1325C.

Core, section,
interval (cm) 		Depth
(mbsf) 		Hydrocarbons (ppmv) Volatiles (ppmv)
C1/C2 C1 C2 C3 i-C4 n-C4 i-C5 n-C5 H2S CO2 O2 N2
311-U1325B-
1H-7, 6–7 9.06 138,248 594,467 4.3 0.0 0.0 0.0 0.0 0.0 0.0 11,883 66,140 285,165
2H-4, 80–81 14.60 144,286 894,573 6.2 0.0 0.0 0.0 0.0 0.0 0.0 11,268 1,235 25,122
2H-6, 137–138 18.17 61,355 85,897 1.4 0.0 0.0 0.0 0.0 5.1 0.0 1,382 NA NA
4H-2, 12–13 25.44 153,353 904,780 5.9 0.0 0.0 0.0 0.0 0.0 0.0 8,594 4,073 30,123
4H-2, 2–3 28.34 148,899 908,284 6.1 0.0 0.3 0.0 0.0 0.0 0.0 4,350 1,260 31,118
5H-2, 19–20 35.19 145,346 915,680 6.3 0.0 0.4 0.0 0.0 0.0 0.0 5,551 1,269 18,689
6H-1, 125–126 44.25
973,108 NA 0.0 0.3 0.0 0.0 0.0 0.0 3,892 2,112 15,372
6H-6, 102–103 51.52 145,962 919,561 6.3 0.0 0.3 0.0 0.0 0.0 0.0 6,236 1,172 11,841
7H-2, 52–53 54.52 171,321 873,736 5.1 0.0 0.0 0.0 0.0 0.0 0.0 4,806 3,769 20,908
7H-7, 13–14 61.39
969,969 NA 0.0 0.0 0.0 0.0 0.0 0.0 4,563 1,272 15,114
8H-2, 7–8 63.33 173,774 921,000 5.3 0.0 0.0 0.0 0.4 0.0 0.0 4,610 1,225 10,870
8H-7, 23–24 70.49
972,800 NA 0.0 0.0 0.0 0.0 0.0 0.0 4,886 1,169 8,644
10X-2, 56–57 74.86 156,812 909,508 5.8 0.0 0.4 0.0 0.0 0.7 0.0 8,174 1,599 11,118
10X-6, 69–70 80.79 140,878 788,920 5.6 1.6 0.5 0.0 0.0 0.6 0.0 8,173 30,434 118,602
12X-1, 91–92 85.31 156,736 909,068 5.8 0.6 1.5 0.0 0.0 0.0 0.0 5,473 2,541 15,067
12X-3, 142–143 88.82 167,026 718,212 4.3 0.0 1.9 0.0 0.5 0.4 0.0 5,141 46,691 184,946
14X-2, 62–63 104.42 128,845 193,268 1.5 0.0 0.0 0.0 0.0 0.5 0.0 2,131 NA NA
14X-5, 129–130 109.59 97,603 683,224 7.0 0.0 0.0 0.0 0.4 0.3 0.0 4,572 53,836 213,615
15X-3, 11–12 114.81 83,096 830,963 10.0 2.7 0.7 0.4 0.0 0.5 0.0 4,735 20,867 83,761
16X-2, 20–21 123.00 107,888 917,048 8.5 3.3 0.6 0.0 0.0 0.7 0.0 6,394 858 6,532
16X-3, 147–148 125.77 83,368 908,715 10.9 0.0 0.6 0.3 0.0 0.6 0.0 6,295 2,499 12,607
16X-6, 131–132 127.96 115,104 828,752 7.2 0.0 0.6 0.4 0.0 1.0 0.0 6,931 21,808 83,745
18X-1, 55–56 131.45 116,978 912,426 7.8 2.8 0.3 0.0 0.0 0.5 0.0 2,831 2,659 16,089
19X-4, 145–146 145.25 88,650 877,638 9.9 5.1 0.0 0.0 0.0 0.0 0.0 3,825 2,048 11,762
20X-6, 77–78 157.61 104,984 304,455 2.9 0.0 0.3 0.0 0.0 0.0 0.0 1,722 139,444 508,952
21X-2, 1–2 160.32 80,719 904,049 11.2 0.0 0.2 1.2 0.0 0.0 0.0 1,769 6,010 26,091
24X-1, 90–91 179.90 62,001 886,608 14.3 0.0 0.4 0.0 0.0 0.0 0.0 2,393 10,637 42,325
24X-3, 95–96 182.72 71,801 926,231 12.9 2.4 0.4 0.0 0.0 0.0 0.0 3,404 2,001 10,023
311-U1325C-
1X-2, 37–38 190.67 104,873 786,547 7.5 0.0 0.2 3.9 0.0 0.0 0.0 3,152 32,584 126,982
4X-1, 38–39 208.38 95,451 925,872 9.7 0.0 1.0 1.2 1.0 0.7 0.0 1,766 27,941 109,450
4X-3, 16–17 210.29 205,253 903,113 4.4 0.0 1.2 1.3 1.1 0.7 0.0 1,727 23,271 98,092
6X-2, 126–127 220.15 85,094 919,020 10.8 0.0 0.2 4.6 0.0 0.0 0.0 1,414 1,213 18,500
6X-4, 17–18 221.68 82,812 927,498 11.2 0.0 0.8 0.0 0.0 0.0 0.0 704 711 4,798
7X-2, 140–141 230.10 97,074 931,914 9.6 0.0 37.8 0.0 0.0 0.0 0.0 607 685 4,642
7X-6, 116–117 233.83 50,496 934,171 18.5 0.0 0.0 0.0 0.0 0.0 0.0 342 698 3,198
8X-2, 55–56 238.85 61,768 932,694 15.1 0.0 1.1 0.0 0.0 0.0 0.0 1,249 522 4,096
8X-6, 55–56 243.85 67,755 935,015 13.8 0.0 0.3 0.3 0.0 0.7 0.0 578 676 5,770
9X-1, 124–125 247.74 19,251 912,508 47.4 0.0 0.2 0.0 0.0 0.0 0.0 1,588 2,855 15,469
9X-5, 94–95 253.22 17,163 933,692 54.4 0.0 0.2 0.0 0.0 0.0 0.0 3,822 490 3,530
11X-3, 57–58 260.67 13,636 923,174 67.7 0.0 6.0 0.0 0.0 0.0 0.0 955 1,229 8,173
12X-2, 128–129 268.58 10,978 902,424 82.2 0.0 0.3 0.0 0.0 0.0 0.0 2,691 5,281 24,129
14X-3, 1–2 286.71 9,382 757,126 80.7 10.1 0.2 1.6 0.0 0.0 0.0 3,186 33,451 133,815
15X-2, 75–76 296.89 9,665 918,163 95.0 14.8 0.8 1.1 0.0 0.0 0.0 4,358 1,703 12,515
15X-3, 75–76 297.84 10,560 927,172 87.8 12.4 0.5 0.6 0.0 0.0 0.0 2,125 905 5,516

Note: NA = not analyzed.

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