| Unit | Subunit | Hole 1193A | Hole 1193B | Hole 1193C | Description | Interpretation | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Core,
section, interval (cm) |
Depth (mbsf) |
Core,
section, interval (cm) |
Depth (mbsf) |
Core,
section, interval (cm) |
Depth (mbsf) |
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Top
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Base
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Top
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Base
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Top
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Base
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Top
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Base
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Top
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Base
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Top
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Base
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| I | 1H-1, 0 | 1H-3, 100 | 0.0 | 3.5 | Skeletal grainstone/mudstone/packstone with planktonic foraminifers. Light brown to yellow. | Hemipelagic (open plateau), high energy | |||||||||
| II | 1H-3, 100 | 4H-7, 40 | 3.5 | 35.0 | Skeletal packstone/wackestone with clay, planktonic foraminifers. Light olive-gray. | Hemipelagic (open plateau), mixed energy | |||||||||
| III | IIIA | 4H-7,
40 |
31X-1, 30 | 35.0 | 167.0 | 1R-1, 100 | 1R-1, 100 | Skeletal rudstone/floatstone/grainstone with bryozoans and benthic foraminifers. White, yellow, reddish white, subordinate dolostone. | Platform, high energy, inner to middle neritic | ||||||
| III | IIIB | 31X-1, 30 | 42X-1, 30 | 167.0 | 229.2 | Skeletal rudstone/floatstone/grainstone with bryozoans, red algae, benthic foraminifers, variable clay content, and subordinate clay-rich mudstone. Light greenish gray. | Platform, high energy, inner to middle neritic, mudstones from bay/lagoonal setting | ||||||||
| IV | 42X-1, 30 | 46X-4, 90 | 229.2 | 249.0 | Mudstone/claystone, minor planktonic and benthic foraminifers. Dark to light greenish gray. | Upper to middle platform slope, low influx of coarse neritic debris | |||||||||
| V | 46X-7, 90 | 62X-5, 77 | 249.2 | 385.1 | Skeletal packstone with clay, fine sand to silt-sized bioclastics, benthic foraminifers. Light olive-gray. | Upper to middle platform slope, moderate to high influx of coarse neritic debris | |||||||||
| VI | VIA | 62X-5, 77 | 385.1 | 7R-1, 100 | 529.3 | Grainstone with quartz, phosphate, and glauconite sand, sandstone beds, benthic foraminifers, echinoderms, red algae. Greenish gray to brown. | Shallow, high-energy shelf with varying carbonate production, siliciclastic influx, and periods of condensed sedimentation | ||||||||
| VI | VIB | 7R-1, 0 | 7R-2, 20 | 529.3 | 531.4 | Sandstone/conglomerate with large oyster shells. Greenish gray. | Transgressive shoreline | ||||||||
| VII | 7R-2, 20 | 8R-5, 30 | 531.4 | 544 | Volcaniclastic conglomerate/breccia, basaltic composition, highly fractured with calcite veins and extensive low-temperature alteration. Reddish brown to dark green. | Basement | |||||||||