| Core,
section, interval (cm) |
Depth (mbsf) |
Minerals | CaCO3 (wt%) |
Total carbon (wt%) |
Organic Carbon (wt%) |
|---|---|---|---|---|---|
| Unit IA |
|
||||
| 183-1139A- |
|
||||
| 1R-5, 68 | 4.83 | Calcite, opal-A | 64 |
7.93
|
0.24 |
| 2R-3, 93 | 13.43 | Calcite, opal-A | 75 |
|
|
| Unit IB |
|
||||
| 183-1139A- |
|
||||
| 3R-1, 92 | 19.91 | Calcite, alkali-feldspar, (opal-A) | 74 |
|
|
| 4R-1, 92 | 29.41 | Calcite | 83 |
10.31
|
0.30 |
| 5R-1, 90 | 38.90 | Calcite, alkali-feldspar, clay, (glauconite) | 76 |
|
|
| Unit II |
|
||||
| 183-1139A- |
|
||||
| 6R-1, 90 | 48.40 | Calcite, sanidine, clay, (glauconite) | 61 |
|
|
| 7R-1, 91 | 57.91 | Calcite, sanidine, clay, (glauconite) | 51 |
6.31
|
0.15 |
| 8R-1, 61 | 67.11 | Calcite, clay, (sanidine) | 73 |
|
|
| 9R-2, 90 | 77.24 | Calcite, clay, sanidine, maghemite, pyrite, (glauconite) | 33 |
|
|
| 10-1, 91 | 86.41 | Calcite, clay, sanidine, maghemite, pyrite, (glauconite) | 25 |
3.35
|
0.36 |
| 11R-1, 91 | 96.01 | Calcite, clay, (sanidine) | 62 |
|
|
| 12R-1, 92 | 105.61 | Calcite, clay, sanidine, maghemite, pyrite, (glauconite) | 28 |
|
|
| 13R-1, 92 | 115.31 | Clay, sanidine, calcite, maghemite, pyrite, plagioclase?, quartz, (glauconite) | 7 |
1.15
|
0.25 |
| 14R-1, 92 | 124.91 | Calcite, clay, sanidine, maghemite, plagioclase?, (glauconite, pyrite, quartz) | 21 |
|
|
| 15R-1, 92 | 134.41 | Calcite, sanidine, clay, maghemite, plagioclase?, | 20 |
|
|
| 16R-1, 92 | 144.11 | Calcite, clay, sanidine, maghemite, plagioclase?, (glauconite, pyrite, quartz) | 32 |
4.02
|
0.18 |
| 17R-1, 92 | 153.71 | Calcite, sanidine, clay, maghemite, plagioclase?, (pyrite, glauconite) | 33 |
|
|
| 18R-1, 92 | 163.41 | Calcite, clay, sanidine | 59 |
|
|
| 19R-1, 92 | 173.01 | Calcite, clay, sanidine, feldspar?, (maghemite, pyrite) | 58 |
7.1
|
0.11 |
| 20R-1, 92 | 182.61 | Calcite, clay, sanidine, maghemite, (plagioclase?) | 53 |
|
|
| 21R-1, 92 | 192.21 | Calcite, clay, sanidine, (glauconite) | 49 |
|
|
| 22R-1, 92 | 201.81 | Calcite, clay, (sanidine) | 71 |
8.54
|
0.03 |
| 23R-1, 92 | 211.41 | Calcite, clay, (sanidine) | 71 |
|
|
| 24R-1, 92 | 221.01 | Calcite, clay, sanidine, maghemite, (glauconite, pyrite) | 44 |
|
|
| 25R-1, 92 | 230.71 | Calcite, clay, (sanidine, glauconite) | 64 |
7.86
|
0.17 |
| 26R-1, 92 | 240.31 | Calcite, clay, sanidine, glauconite, (maghemite, pyrite) | 40 |
|
|
| 27R-1, 92 | 250.01 | Calcite, clay, sanidine, glauconite, maghemite, plagioclase?, (clinoptilolite, pyrite) | 32 |
|
|
| 28R-1, 92 | 259.61 | Calcite, clay, sanidine, maghemite, glauconite, (pyrite, plagioclase?, quartz) | 15 |
1.89
|
0.11 |
| 29R-1, 92 | 269.21 | Calcite, clay, sanidine, maghemite, (pyrite, plagioclase?) | 20 |
|
|
| 30R-1, 92 | 278.81 | Calcite, clay, sanidine, maghemite, glauconite, (pyrite, plagioclase?) | 32 |
|
|
| 31R-1, 92 | 288.41 | Calcite, clay, sanidine, glauconite, (maghemite, clinoptilolite) | 41 |
5.08
|
0.13 |
| 32R-1, 92 | 298.01 | Calcite, clay, sanidine, maghemite, glauconite, (clinoptilolite, pyrite, plagioclase?) | 45 |
|
|
| 33R-1, 92 | 307.71 | Calcite, clay, sanidine, glauconite, (maghemite) | 42 |
|
|
| 34R-1, 92 | 317.31 | Calcite, sanidine, clay, glauconite, (maghemite plagioclase?) | 39 |
4.83
|
0.2 |
| 36R-1, 92 | 336.31 | Calcite, clay, sanidine, maghemite, (quartz, plagioclase?) | 47 |
|
|
| 37R-1, 92 | 345.91 | Calcite, clay, (sanidine, clinoptilolite) | 67 |
|
|
| 38R-3, 31 | 356.93 | Calcite, clay, sanidine, (pyrite, glauconite) | 55 |
6.85
|
0.19 |
| 39R-1, 92 | 365.11 | Calcite, pyrite, (clay, sanidine, clinoptilolite) | 72 |
|
|
| 40R-1, 120 | 375.00 | ---- | 48 |
|
|
| Unit III |
|
||||
| 138-1139A- |
|
||||
| 40R-CC, 12 | 382.33 | Calcite | 94 |
11.27
|
0.04 |
Notes: Minerals listed in parentheses are present only in trace amounts. Carbonate and carbon data are from "Organic and Inorganic Geochemistry".