Table T2. Total carbon (TC) contents, total organic carbon (TOC) contents, and carbon isotopic values (δ13C-TC and δ13C-TOC) of basalt, sediment, and sediment breccia samples and carbon contents and carbon isotopic values (δ13C-kerogen) of kerogen samples extracted from basalt samples, Holes U1382A and U1383C.
|
Core, section, interval (cm) |
Lithologic character |
Depth (mbsf) |
TC (wt%) | δ13C-TC (‰ vs. VPDB) |
TOC (wt%) | δ13C-TOC (‰ vs. VPDB) |
Carbon (wt%) | δ13C-kerogen (‰ vs. VPDB) |
|---|---|---|---|---|---|---|---|---|
| 336-U1382A- | ||||||||
| 3R-3, 89–93 | Basalt | 117.10 | 0.09 (±0.00) | 0.12 (±0.11) | 0.01 (±0.00) | –25.90 (±0.34) | — | — |
| 3R-4, 99–103 | Basalt | 118.61 | 0.01 (±0.00) | –12.27 (±0.31) | 0.01 (±0.00) | –26.28 (±0.13) | — | — |
| 4R-2, 14–17 | Basalt | 124.50 | 0.01 (±0.00) | 0.22 (±0.88) | 0.01 (±0.00) | –24.77 (±0.26) | 31.72 (±8.52) | –27.63 (±0.66) |
| 6R-3, 30–33 | Basalt | 144.54 | 0.03 (±0.01) | –11.62 (±0.95) | 0.01 (±0.00) | –26.10 (±0.48) | 30.61 | –29.87 |
| 8R-2, 13–15 | Basalt | 162.73 | 0.02 (±0.00) | –15.38 (±0.71) | 0.02 (±0.00) | –23.23 (±0.29) | — | — |
| 8R-3, 10–1 | Sediment | 163.04 | 4.33 (±0.01) | –11.37 (±0.87) | — | — | — | —— |
| 8R-4, 34–36 | Basalt | 163.70 | 0.33 (±0.02) | 1.84 (±0.30) | 0.01 (±0.00) | –25.16 (±0.24) | — | — |
| 8R-4, 34–36 | Sediment | 163.70 | 3.56 (±0.16) | 2.38 (±0.10) | — | — | — | — |
| 9R-1, 76–79 | Basalt | 171.68 | 0.08 (±0.01) | –8.91 (±0.01) | 0.01 (±0.00) | –26.42 (±1.17) | — | — |
| 9R-3, 21–24 | Basalt | 174.02 | 0.10 (±0.01) | –1.18 (±0.27) | 0.01 (±0.00) | –25.48 (±0.69) | 8.04 (±2.33) | –30.44 (±0.26) |
| 12R-2, 44–47 | Basalt | 201.55 | 0.01 (±0.00) | –20.94 (±0.07) | 0.01 (±0.00) | –28.45 (±0.17) | — | — |
| 336-U1383C- | ||||||||
| 2R-1, 126–130 | Basalt | 70.79 | 0.02 (±0.00) | –11.57 (±0.04) | 0.01 (±0.00) | –25.53 (±0.13) | — | — |
| 3R-1, 110–113 | Basalt | 77.72 | 0.01 (±0.00) | –17.65 (±0.35) | 0.01 (±0.00) | –26.05 (±0.13) | — | — |
| 7R, 235–237 | Basalt | 116.80 | 0.01 (±0.00) | –18.59 (±0.36) | — | — | — | — |
| 7R-2, 70–72 | Carbonate | 117.15 | 10.86 (±0.04) | 2.69 (±0.20) | 0.01 (±0.00) | –25.39 (±0.26) | — | — |
| 7R-2, 85–88 | Basalt | 117.31 | 0.01 (±0.00) | –12.91 (±0.07) | 0.01 (±0.00) | –26.82 (±0.03) | — | — |
| 8R-2, 59–62 | Basalt | 126.57 | 0.02 (±0.00) | –12.56 (±0.04) | 0.01 (±0.00) | –25.07 (±0.06) | — | — |
| 9R-4, 72–75 | Basalt | 139.38 | 0.02 (±0.00) | –9.63 (±0.12) | 0.01 (±0.00) | –26.98 (±0.14) | — | — |
| 10R-2, 65–67 | Carbonate | 145.93 | 11.89 (±0.01) | 2.76 (±0.11) | — | — | — | — |
| 11R-1, 52–55 | Basalt | 154.04 | 0.03 (±0.00) | –5.01 (±0.45) | 0.01 (±0.00) | –25.67 (±0.50) | — | — |
| 11R-1, 52–55 | Sediment | 154.04 | 6.81 (±0.01) | 2.82 (±0.00) | — | — | — | — |
| 14R-2, 11–13 | Basalt | 183.65 | 0.03 (±0.00) | –10.41 (±2,02) | 0.01 (±0.00) | –21.24 (±0.11) | — | — |
| 14R-2, 67–69 | Basalt | 184.21 | 0.02 (±0.00) | –12.79 (±0.19) | — | — | — | — |
| 16R-1, 68–70 | Basalt | 193.49 | 0.01 (±0.00) | –12.57 (±0.42) | 0.01 (±0.00) | –25.55 (±0.15) | 2.86 (±0.19) | –29.72 (±0.46) |
| 23R-1, 48–51 | Basalt | 247.49 | 0.01 (±0.00) | –13.29 (±0.23) | 0.01 (±0.00) | –25.41 (±0.10) | — | — |
| 23R-2, 12–15 | Basalt | 248.48 | 0.37 (±0.04) | 1.79 (±0.15) | 0.01 (±0.00) | –26.46 (±0.50) | — | — |
| 26R-1, 127–130 | Basalt | 276.68 | 0.03 (±0.00) | –11.53 (±0.92) | 0.01 (±0.00) | –23.15 (±0.08) | — | — |
| 29R-1, 94–97 | Basalt | 300.15 | 0.31 (±0.00) | 1.45 (±0.24) | 0.01 (±0.00) | –23.65 (±0.44) | — | — |
| 30R-1, 18–20 | Basalt | 303.89 | 0.01 (±0.00) | –19.57 (±0.67) | 0.01 (±0.00) | –29.66 (±0.04) | 21.21 (±0.39) | –29.42 (±0.94) |
| 31R-2, 49–51 | Basalt | 314.00 | 0.13 (±0.02) | 0.88 (±0.43) | 0.01 (±0.00) | –27.36 (±0.12) | — | — |
Carbon contents of kerogen were determined relative to fractions treated with HCl/HF. VPDB = Vienna Peedee belemnite.
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