Core, section, interval (cm)
|
Depth (mbsf)
|
CaCO3 (wt%)
|
Minerals
|
|---|---|---|---|
| 183-1139A- | |||
| 6R-1, 90 | 48.40 | 61 | Calcite, sanidine, clay, (glauconite) |
| 7R-1, 91 | 57.91 | 51 | Calcite, sanidine, clay, (glauconite) |
| 8R-1, 61 | 67.11 | 73 | Calcite, clay, (sanidine) |
| 9R-2, 90 | 77.24 | 33 | Calcite, clay, sanidine, maghemite, pyrite, (glauconite) |
| 10-1, 91 | 86.41 | 25 | Calcite, clay, sanidine, maghemite, pyrite, (glauconite) |
| 11R-1, 91 | 96.01 | 62 | Calcite, clay, (sanidine) |
| 12R-1, 92 | 105.61 | 28 | Calcite, clay, sanidine, maghemite, pyrite, (glauconite) |
| 13R-1, 92 | 115.31 | 7 | Clay, sanidine, calcite, maghemite, pyrite, plagioclase?, quartz, (glauconite), chlorite |
| 14R-1, 92 | 124.91 | 21 | Calcite, clay, sanidine, maghemite, plagioclase?, (glauconite, pyrite, quartz) |
| 15R-1, 92 | 134.41 | 20 | Calcite, sanidine, clay, maghemite, plagioclase?, |
| 16R-1, 92 | 144.11 | 32 | Calcite, clay, sanidine, maghemite, plagioclase?, (glauconite, pyrite, quartz) |
| 17R-1, 92 | 153.71 | 33 | Calcite, sanidine, clay, maghemite, plagioclase?, (pyrite, glauconite) |
| 18R-1, 92 | 163.41 | 59 | Calcite, clay, sanidine |
| 19R-1, 92 | 173.01 | 58 | Calcite, clay, sanidine, feldspar?, (maghemite, pyrite), montmorillonite? |
| 19R-1, 138 | 173.48 | 74 | Insignificant clays in acidified sample |
| 19R-2, 112 | 174.72 | 40 | Insignificant clays in acidified sample |
| 20R-1, 92 | 182.61 | 53 | Calcite, clay, sanidine, maghemite, (plagioclase?) |
| 21R-1, 92 | 192.21 | 49 | Calcite, clay, sanidine, (glauconite) |
| 22R-1, 92 | 201.81 | 71 | Calcite, clay, (sanidine) |
| 22R-CC | ~70 | ||
| 23R-1, 92 | 211.41 | 71 | Calcite, clay, (sanidine) |
| 24R-1, 92 | 221.01 | 44 | Calcite, clay, sanidine, maghemite, (glauconite, pyrite) |
| 25R-1, 92 | 230.71 | 64 | Calcite, clay, (sanidine, glauconite) |
| 26R-1, 92 | 240.31 | 40 | Calcite, clay, sanidine, glauconite, (maghemite, pyrite) |
| 27R-1, 92 | 250.01 | 32 | Calcite, clay, sanidine, glauconite, maghemite, plagioclase?, (clinoptilolite, pyrite) |
| 27R-3, 30 | 252.29 | 52 | Smectite |
| 27R-4, 135 | 254.95 | 14 | Insignificant clays in acidified sample |
| 28R-1, 92 | 259.61 | 15 | Calcite, clay, sanidine, maghemite, glauconite, (pyrite, plagioclase?, quartz) |
| 28R-CC | ~30 | ||
| 29R-1, 92 | 269.21 | 20 | Calcite, clay, sanidine, maghemite, (pyrite, plagioclase?) |
| 30R-1, 92 | 278.81 | 32 | Calcite, clay, sanidine, maghemite, glauconite, (pyrite, plagioclase?) |
| 31R-1, 92 | 288.41 | 41 | Calcite, clay, sanidine, glauconite, (maghemite, clinoptilolite) |
| 32R-1, 92 | 298.01 | 45 | Calcite, clay, sanidine, maghemite, glauconite, (clinoptilolite, pyrite, plagioclase?) |
| 33R-1, 92 | 307.71 | 42 | Calcite, clay, sanidine, glauconite, (maghemite) |
| 33R-3, 19 | 309.99 | 64 | Insignificant clays in acidified sample |
| 33R-5, 55 | 313.35 | 36 | Insignificant clays in acidified sample |
| 34R-1, 92 | 317.31 | 39 | Calcite, sanidine, clay, glauconite, (maghemite plagioclase?) |
| 36R-1, 92 | 336.31 | 47 | Calcite, clay, sanidine, maghemite, (quartz, plagioclase?) |
| 37R-1, 92 | 345.91 | 67 | Calcite, clay, (sanidine, clinoptilolite) |
| 38R-3, 31 | 356.93 | 55 | Calcite, clay, sanidine, (pyrite, glauconite) |
| 39R-1, 92 | 365.11 | 72 | Calcite, pyrite, (clay, sanidine, clinoptilolite) |
| 40R-1, 120 | 375.00 | 48 |
Notes: Minerals listed in order of decreasing abundance. Minerals listed in parentheses are present only in trace amounts. Items in plain text are shipboard measurements (Shipboard Scientific Party, 2000). Items in bold are new measurements from this study.