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Unit/Subunit
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Top
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Base
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Description
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Interpretation
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Hole, core,
section, interval (cm) |
Depth
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Hole, core, section, interval (cm)
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Depth
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(mbsf)
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(mcd)
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(mbsf)
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(mcd)
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202- |
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202- |
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| IA | 1238A-1H-1, 0 | 0.0 | 0.0 | 1238A-39X-CC, 34 | 365.5 | 402.4 | Interbedded nannofossil ooze, diatom nannofossil ooze, and nannofossil diatom ooze with minor contributions from clay and foraminifers, 17 ash layers, meter-scale light/dark banding | Pelagic setting with moderate to high productivity, alternating between carbonate and siliceous oozes, possibly on orbital timescales |
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1238B-1H-1, 0 | 0.0 | 0.0 | 1238B-21H-CC, 30 | 201.5 | 219.1 | ||
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1238C-1H-1, 0 | 0.0 | 0.0 | 1238C-18H-CC, 21 | 168.0 | 184.9 | ||
| IB | 1238A-40X-1, 0 | 365.2 | 403.1 | 1238A-46X-CC, 36 | 424.7 | 467.3 | Diatom ooze, partially lithified nannofossil ooze with micrite, chalk, and chert | Lithification and diagenesis |