Table T4. Summary of lithologic units, Hole C0007D. (See table note.)
Unit | Core, section, interval (cm) | Depth CSF (m) | Thickness (m) |
Stratigraphic age |
Lithologic description |
Processes of formation |
||
---|---|---|---|---|---|---|---|---|
Top | Bottom | Top | Bottom | |||||
316-C0007D- | 316-C0007D- | |||||||
IIAii | 1R-1, 0 | 3R-1, 5 | 175.00 | 190.05 | 15.05 | Pleistocene | Thinning and fining upward beds of gravel and sand with thin interbeds of nannofossil-bearing mud | Gravelly and sandy turbidites, hemipelagic settling |
IICi | 3R-1, 5 | 11R-1, 20 | 190.05 | 266.20 | 76.15 | Pleistocene | Mud, mudstone with sand/silt layers and rare volcanic layers | Hemipelagic settling, thin-bedded turbidites, and rare volcanic ash falls |
IIAiii | 11R-1, 20 | 15R-1, 0 | 266.20 | 303.50 | 37.30 | Pleistocene | Thinning and fining-upwards bed of gravel and sand with thin interbeds of nannofossil-bearing mud | Gravelly and sandy turbidites, hemipelagic settling |
IICii | 15R-1, 0 | 17R-3, 79 | 303.50 | 326.02 | 22.52 | Pleistocene | Mud, mudstone with silt layers and rare volcanic layers | Hemipelagic settling, thin-bedded turbidites, and rare volcanic ash falls |
IID | 17R-3, 79 | 21R-CC, 36 | 326.02 | 362.26 | 36.24 | Pleistocene | Mudstone with volcanic ash layers and rare thin silt layers | Hemipelagic settling, volcanic ash layers, and rare thin-bedded turbidites |
III | 21R-CC, 36 | 29R-CC, 29 | 362.26 | 439.44 | 77.18 | Pliocene | Mudstone with volcanic ashstone layers | Hemipelagic settling, volcanic ash layers |
IV | 29R-CC, 29 | 35R-CC, 19 | 439.44 | 484.44 | 45.00 | Pliocene | Sand, mudstone | Sandy turbidites, hemipelagic settling |
Note: CSF = core depth below seafloor.
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