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Table T22. H2 concentration in sediment samples, determined by incubation method, Hole C0011B. (See table note.)

Core, section,
interval (cm) 		Depth
CSF (m) 		T
(°C) 		1/β t
(h) 		Replicate 1 Replicate 2 Replicate 3
H2 in
headspace
gas (ppmv) 		H2 in
interstitial
water (nM) 		H2 in
headspace
gas (ppmv) 		H2 in
interstitial
water (nM) 		H2 in
headspace
gas (ppmv) 		H2 in
interstitial
water (nM)
322-C0011B-
15R-3, 42–52 472.50 40 69.94 0.0 0.20 0.11 0.06 0.04 0.38 0.21
48.4 6.13 3.41 2.35 1.31 11.7 6.50
70.8 5.01 2.79 1.52 0.85 9.28 5.16
121.7 4.87 2.71 1.56 0.87 6.60 3.67
144.3 3.76 2.09 1.80 1.00 5.97 3.32
190.3 2.54 1.41 1.22 0.68 4.75 2.64
239.4 1.87 1.04 1.05 0.58 3.97 2.21
260.8 1.07 0.60 1.36 0.76 3.48 1.94
630.5 0.74 0.41 0.75 0.42 1.69 0.94
21R-2, 36–46 502.06 40 69.94 0.0 0.01 0.00 0.04 0.02 0.01 0.00
29.3 2.20 1.22 3.17 1.76 3.08 1.71
54.3 1.17 0.65 4.16 2.31 3.99 2.22
76.5 2.50 1.39 3.27 1.82 4.37 2.43
104.5 2.32 1.29 2.76 1.54 3.86 2.15
127.3 2.17 1.20 2.33 1.30 2.49 1.39
172.7 1.38 0.77 1.93 1.07 2.27 1.26
221.3 1.38 0.77 1.78 0.99 1.29 0.72
243.1 0.93 0.52 1.69 0.94 1.29 0.72
611.8 1.23 0.68 0.72 0.40 1.01 0.56
25R-2, 52–62 540.43 40 69.94 0.0 0.32 0.18 0.06 0.03 0.93 0.52
6.1 11.8 6.59 6.88 3.83 5.35 2.98
31.2 10.8 5.99 7.86 4.37 5.23 2.91
54.5 7.56 4.20 5.57 3.10 4.58 2.55
125.1 4.14 2.30 3.25 1.81 2.21 1.23
173.1 2.45 1.37 2.53 1.41 1.74 0.97
194.4 2.12 1.18 1.95 1.09 1.99 1.11
563.2 0.66 0.37 0.98 0.54 0.78 0.44
32R-5, 57–67 602.01 40 69.94 0.0 8.42 4.68 0.26 0.15 0.55 0.31
5.9 28.9 16.1 17.4 9.69 44.1 24.5
29.2 17.4 9.70 32.0 17.8 66.3 36.9
77.0 37.8 21.0 27.9 15.5 50.7 28.2
125.1 32.1 17.8 22.5 12.5 38.7 21.5
145.0 29.5 16.4 19.4 10.8 32.6 18.2
513.1 13.8 7.65 9.22 5.13 8.31 4.62
35R-1, 46–56 624.98 40 69.94 0.0 2.75 1.53 7.57 4.21 4.23 2.35
26.4 6.61 3.68 10.1 5.61 5.04 2.81
49.8 7.59 4.22 10.8 6.03 5.58 3.11
96.4 6.93 3.85 10.9 6.06 4.63 2.57
145.6 6.49 3.61 10.1 5.64 4.02 2.24
534.0 3.89 2.17 7.16 3.99 0.94 0.52
45R-4, 0–10 700.86 50 70.66 0.0 2.74 1.46 1.15 0.61 0.69 0.37
8.4 62.7 33.5 1.41 0.75 3.49 1.86
22.0 57.8 30.9 2.36 1.26 4.02 2.14
29.2 53.4 28.5 2.53 1.35 4.84 2.58
74.8 41.9 22.4 2.48 1.32 4.41 2.35
121.7 33.8 18.0 1.97 1.05 3.55 1.89
145.2 29.0 15.5 2.00 1.07 3.88 2.07
515.2 9.73 5.19 0.99 0.53 1.91 1.02
48R-3, 15–25 722.69 50 70.66 0.0 0.06 0.03 0.02 0.01 0.00 0.00
7.6 3.05 1.63 1.26 0.67 1.03 0.55
53.6 4.91 2.62 3.08 1.64 2.85 1.52
100.4 4.79 2.56 2.87 1.53 4.00 2.14
123.7 5.10 2.72 1.91 1.02 3.86 2.06
495.1 3.76 2.01 2.70 1.44 4.60 2.46
54R-3, 10–20 772.67 50 70.66 0.0 0.16 0.09 0.33 0.17 1.38 0.73
54.4 2.06 1.10 4.01 2.14 12.4 6.63
77.7 2.44 1.30 3.74 1.99 12.5 6.65
446.6 1.12 0.60 1.45 0.78 4.29 2.29
58R-6, 123–135 862.66 50 70.66 0.0 0.44 0.23 1.06 0.57 0.90 0.48
1.6 92.3 49.3 46.1 24.6 38.4 20.5
4.7 133 70.8 75.7 40.4 64.9 34.7
7.6 143 76.6 84.4 45.0 71.7 38.2
25.1 185 98.8 122 65.3 105 55.9
394.4 223 119 152 81.1 138 73.6

Note: T = incubation temperature, β = experimentally determined solubility constant corrected for temperature and salinity (Crozier and Yamamoto, 1974), t = duration of incubation.

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