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Table T5. Headspace gas concentrations of hydrocarbons, Holes U1326C and U1326D.

Core, section,
interval (cm) 		Depth
(mbsf) 		C1/C2 C1
(ppmv) 		C2
(ppmv) 		C2=
(ppmv) 		C3
(ppmv) 		C1
(mM)*
311-U1326C-
1H-1, 80–85 0.80
37 0 0 0 0.02
1H-2, 0–5 1.50
25 0 0 0 0.01
1H-2, 80–85 2.30 213 149 0.7 0 0 0.08
1H-3, 0–5 3.00
3,943 0 0 0 2.10
2H-1, 75–80 4.65
13,275 0 0 0 7.10
2H-2, 0–5 5.40
14,783 0 0 0 8.00
2H-2, 80–85 6.20
16,892 0 0 0 9.10
2H-3, 0–5 6.90 17,964 14,371 0.8 0 0 7.80
2H-3, 75–80 7.65
9,988 0 0 0 5.40
2H-4, 0–5 8.40 19,431 11,659 0.6 0 0 6.30
2H-4, 80–85 9.20 15,108 10,576 0.7 0 0 5.70
2H-5, 0–5 9.90
13,612 0 0 0 7.40
2H-6, 0–5 11.40 8,169 4,902 0.6 0 0 2.70
2H-7, 0–5 12.90
4,429 0 0 0 2.40
3H-3, 0–5 16.40
5,165 0 0.4 0 2.80
3H-5, 0–5 19.40
4,437 0 0.4 0 2.40
4H-3, 0–5 25.90 8,136 8,136 1 0 0 4.50
5X-3, 0–5 33.32
5,197 0 0 0 2.90
5X-4, 135–140 36.00
3,570 0 0 0 2.00
6X-3, 0–5 43.00 17,143 6,858 0.4 0 0 4.00
6X-4, 78–83 44.80
7,112 0 0 0 4.10
6X-4, 92–93 44.94
3,206 0 0 0 1.90
7X-2, 0–5 51.03 15,457 7,729 0.5 0 0 4.10
7X-3, 69–74 53.22
5,190 0 0 0 2.80
7X-3, 77–78 53.30 15,347 12,278 0.8 0 0 6.60
7X-3, 85–86 53.38
3,245 0 0 0 1.70
8X-1, 90–95 60.30
8,290 0 0 0 4.50
9X-2, 25–30 70.85 9,608 5,765 0.6 0 0 3.20
9X-3, 61–66 72.71
7,932 0 0 0 4.40
10X-1, 145–150 80.15
3,293 0 0 0 1.80
311-U1326D-
2X-3, 0–5 91.40
3,086 0 0 0 1.70
2X-6, 0–5 95.84
3,494 0 0 0 2.00
3X-3, 0–5 101.10
2,891 0 0 0 1.70
3X-5, 0–5 103.79
3,443 0 0 0 2.00
4X-3, 35–40 111.05
2,723 0 0 0 1.60
4X-6, 8–13 114.65
2,989 0 0 0 1.70
5X-4, 0–5 121.54
3,147 0 0 0 1.80
5X-6, 0–5 123.60
9,163 0 0 0 5.40
6X-4, 85–90 131.98
3,161 0 0 0 1.90
6X-6, 0–5 133.45
2,540 0 0 0 1.50
7X-1, 68–73 137.28
3,037 0 0 0 1.80
7X-4, 0–5 140.19
7,553 0 0 0 4.60
8X-2, 31–36 148.11
1,842 0 0 0 1.10
8X-3, 0–5 148.76
4,060 0 0 0 2.50
9X-1, 79–84 156.69
3,725 0 0 0 2.30
9X-4, 40–45 158.51
4,388 0 0 0 2.70
9X-5, 0–5 158.59
5,549 0 0 0 3.40
10X-2, 92–97 168.02 7,222 9,389 1.3 0 0 5.90
10X-6, 0–5 172.02
3,421 0 0 0 2.20
11X-1, 41–46 175.61 5,813 8,138 1.4 0 0 5.20
12X-1, 70–75 185.50
3,448 0 0 0 2.20
12X-4, 0–5 189.05
2,922 0 0 0 1.90
13X-1, 95–100 195.35 5,452 4,362 0.8 0 0 2.90
13X-1, 103–106 195.43
2,078 0 0 0 1.40
13X-4, 55–60 198.55
2,906 0 0 0 1.90
14X-3, 65–67 206.92
5,311 0 0 0 3.60
14X-4, 0–5 207.00
6,237 0 0 0 4.20
14X-5, 50–55 209.00 7,263 4,358 0.6 0 0 2.90
15X-3, 95–100 217.31
3,785 0 0 3.3 2.60
15X-6, 0–5 220.36
3,634 0 0 3.8 2.50
16X-3, 50–55 226.80
4,148 0 0 0 2.90
16X-5, 52–57 229.42
3,556 0 0 0 2.50
17X-3, 100–105 236.90
2,031 0 0 0 1.40
17X-6, 0–5 240.34
3,666 0 0 0 2.60
18X-1, 79–84 243.39 3,595 5,752 1.6 0 0 4.10
18X-2, 91–96 244.56
2,792 0 0 0 2.00
19X-1, 36–41 252.56
1,941 0 0 0 1.40
20X-2, 28–33 263.58 5,431 5,975 1.1 0 0 4.40

Note: * = dissolved residual methane obtained by the headspace equilibration method.

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