Table T12. Headspace (HS) gas concentrations, Site U1422.
| Core, section, interval (cm) |
Top depth CSF-A (m) |
Sample type |
Sediment volume (cm3) |
CH4 (ppmv) measured |
Ethane (ppmv) measured |
CH4 (ppmv) normalized |
Ethane (ppmv) normalized |
C1/C2 |
|---|---|---|---|---|---|---|---|---|
| 346-U1422C- | ||||||||
| 1H-2, 0–5 | 1.50 | HS | 5.0 | 2.56 | 0.00 | 2.56 | 0.00 | |
| 2H-2, 0–5 | 6.10 | HS | 3.0 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 2H-5, 0–5 | 10.60 | HS | 4.5 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 3H-2, 0–5 | 15.60 | HS | 4.0 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 3H-5, 0–5 | 20.10 | HS | 3.5 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 4H-2, 0–5 | 25.10 | HS | 3.5 | 18.13 | 0.00 | 25.90 | 0.00 | |
| 4H-5, 0–5 | 29.58 | HS | 3.0 | 51.31 | 0.00 | 85.52 | 0.00 | |
| 5H-2, 0–5 | 34.60 | HS | 4.0 | 3,597.11 | 2.90 | 4,496.39 | 3.63 | 1,240.38 |
| 5H-5, 0–5 | 39.00 | HS | 4.0 | 8,359.44 | 5.94 | 10,449.30 | 7.43 | 1,407.31 |
| 6H-2, 0–5 | 44.10 | HS | 3.0 | 16,659.40 | 2.02 | 27,765.67 | 3.37 | 8,247.23 |
| 7H-2, 0–5 | 53.60 | HS | 3.2 | 16,560.17 | 1.73 | 25,875.27 | 2.70 | 9,572.35 |
| 7H-5, 0–5 | 58.10 | HS | 3.4 | 21,863.42 | 2.13 | 32,152.09 | 3.13 | 10,264.52 |
| 8H-2, 0–5 | 63.10 | HS | 3.2 | 23,808.44 | 3.07 | 37,200.69 | 4.80 | 7,755.19 |
| 8H-5, 0–5 | 67.60 | HS | 3.2 | 22,860.43 | 2.17 | 35,719.42 | 3.39 | 10,534.76 |
| 9H-2, 0–5 | 72.60 | HS | 3.4 | 24,206.85 | 2.41 | 35,598.31 | 3.54 | 10,044.34 |
| 9H-5, 0–5 | 76.84 | HS | 3.4 | 13,725.17 | 8.26 | 20,184.07 | 12.15 | 1,661.64 |
| 10H-3, 0–5 | 80.80 | HS | 3.4 | 20,217.20 | 2.12 | 29,731.18 | 3.12 | 9,536.42 |
| 10H-6, 0–5 | 85.39 | HS | 3.4 | 26,407.72 | 1.68 | 38,834.88 | 2.47 | 15,718.88 |
| 11H-2, 0–5 | 88.56 | HS | 3.5 | 7,277.57 | 4.16 | 10,396.53 | 5.94 | 1,749.42 |
| 11H-6, 0–5 | 94.56 | HS | 3.6 | 21,860.65 | 2.17 | 30,362.01 | 3.01 | 10,074.03 |
| 12H-2, 0–5 | 98.30 | HS | 3.4 | 15,729.57 | 9.22 | 23,131.72 | 13.56 | 1,706.03 |
| 12H-5, 0–5 | 102.90 | HS | 3.2 | 13,485.31 | 7.94 | 21,070.80 | 12.41 | 1,698.40 |
| 13H-3, 0–5 | 109.30 | HS | 3.2 | 22,499.11 | 2.16 | 35,154.86 | 3.38 | 10,416.25 |
| 13H-6, 0–5 | 113.81 | HS | 3.2 | 7,884.72 | 4.93 | 12,319.88 | 7.70 | 1,599.33 |
| 14H-2, 0–5 | 117.30 | HS | 4.0 | 32,208.68 | 2.03 | 40,260.85 | 2.54 | 15,866.34 |
| 14H-5, 0–5 | 121.82 | HS | 3.1 | 13,140.15 | 0.00 | 21,193.79 | 0.00 | |
| 15H-2, 0–5 | 126.80 | HS | 4.0 | 20,847.99 | 1.87 | 26,059.99 | 2.34 | 11,148.66 |
| 16H-2, 0–5 | 131.50 | HS | 3.0 | 10,620.82 | 6.08 | 17,701.37 | 10.13 | 1,746.85 |
| 17H-2, 0–5 | 136.20 | HS | 3.2 | 12,738.84 | 7.25 | 19,904.44 | 11.33 | 1,757.08 |
| 18H-2, 0–5 | 140.90 | HS | 4.0 | 28,137.87 | 1.72 | 35,172.34 | 2.15 | 16,359.23 |
| 19H-2, 0–5 | 145.60 | HS | 3.0 | 10,353.29 | 0.00 | 17,255.48 | 0.00 | |
| 20H-2, 0–5 | 150.30 | HS | 3.2 | 15,496.32 | 8.49 | 24,213.00 | 13.27 | 1,825.24 |
| 21H-2, 0–5 | 155.00 | HS | 3.0 | 15,753.39 | 9.11 | 26,255.65 | 15.18 | 1,729.24 |
| 22H-2, 0–5 | 159.70 | HS | 3.0 | 14,861.76 | 0.00 | 24,769.60 | 0.00 | |
| 23H-2, 0–5 | 164.40 | HS | 3.2 | 6,268.71 | 3.34 | 9,794.86 | 5.22 | 1,876.86 |
| 24H-2, 0–5 | 169.10 | HS | 2.6 | 8,832.01 | 5.53 | 16,984.63 | 10.63 | 1,597.11 |
| 25H-2, 0–5 | 173.80 | HS | 3.6 | 16,660.35 | 1.40 | 23,139.38 | 1.94 | 11,900.25 |
| 26H-2, 0–5 | 178.50 | HS | 2.8 | 12,284.53 | 7.05 | 21,936.66 | 12.59 | 1,742.49 |
| 27H-2, 0–5 | 183.19 | HS | 3.0 | 14,163.24 | 0.00 | 23,605.40 | 0.00 | |
| 28H-2, 0–5 | 187.90 | HS | 3.4 | 12,007.58 | 0.00 | 17,658.21 | 0.00 | |
| 29H-2, 0–5 | 192.59 | HS | 3.4 | 10,044.69 | 0.00 | 14,771.60 | 0.00 | |
| 30H-2, 0–5 | 197.30 | HS | 3.2 | 19,212.29 | 0.00 | 30,019.20 | 0.00 | |
| 31H-2, 0–5 | 202.00 | HS | 3.0 | 4,337.86 | 2.53 | 7,229.77 | 4.22 | 1,714.57 |
| 346-U1422E- | ||||||||
| 3H-4, 0–5 | 23.50 | HS | 3.0 | 33.38 | 0.00 | 55.63 | 0.00 | |
| 3H-5, 0–5 | 25.00 | HS | 3.2 | 47.73 | 0.00 | 74.58 | 0.00 | |
| 3H-6, 0–5 | 26.50 | HS | 3.0 | 40.70 | 0.00 | 67.83 | 0.00 | |
| 3H-7, 0–5 | 28.00 | HS | 3.2 | 41.07 | 0.00 | 64.17 | 0.00 | |
| 4H-1, 145–150 | 29.95 | HS | 3.0 | 214.23 | 0.00 | 357.05 | 0.00 | |
| 4H-2, 145–151 | 31.45 | HS | 3.0 | 151.90 | 0.00 | 253.17 | 0.00 | |
| 4H-3, 145–152 | 32.95 | HS | 2.8 | 535.07 | 0.00 | 955.48 | 0.00 | |
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