Unit/
Subunit
|
Hole, core, section,
interval (cm) |
Depth
(mbsf) |
Thickness
(mbsf)
|
Age
|
Lithology
|
---|---|---|---|---|---|
|
207- |
|
|
|
|
I | 1260A-1R-1, 0, through 2R-1, 10* | 0–1.10 | 1.10 | Pleistocene | Nannofossils clay |
IIA | 1260A-2R-1, 10, through 5R-CC, 12* | 1.10–36.03 | 34.93 | early Oligocene | Foraminifers and nannofossils ooze; foraminifers and nannofossils chalk |
IIB | 1260A-5R-CC, 12, through 20R-3, 781260B-1R-1, 0 through 11R-CC, 25 | 36.03–176.5840.2–>135.61 | 140.55>95.41 | middle Eocene | Nannofossils and radiolarian chalk; nannofossils chalk with foraminifers and radiolarian |
IIC | 1260A-20R-3, 78, through 30R-7, 74<1260B-12R-1, 0, through 17R-7, 69 | 176.58–276.74<235–279.84 | 100.16>44.84 | middle Eocene–early Eocene | Nannofossils chalk with clay and foraminifers |
IIIA | 1260A-30R-7, 74, through 35R-5, 931260B-17R-7, 69, through 22R-3, 145 | 276.74–324.03279.84–323.55 | 47.2943.71 | Paleocene | Nannofossils chalk with foraminifers and calcite; clayey nannofossils chalk with foraminifers and calcite |
IIIB | 1260A-35R-5, 93, through 41R-3, 1251260B-22R-3, 145, through 28R-2, 145 | 324.03–379.15323.55–379.85 | 55.1256.30 | Maastrichtian–late Campanian | Nannofossils chalk with foraminifers and calcite; clayey nannofossils chalk with foraminifers and calcite |
IIIC | 1260A-41R-3, 125, through 42R-CC, 151260B-28R-2, 145, through 30R-CC, 8 | 379.15–390.65379.85–390.83 | 11.5010.98 | early Campanian | Nannofossils chalk with foraminifers and calcite; clayey nannofossils chalk with foraminifers and calcite |
IV | 1260A-42R-CC, 15, through 53R-2, 421260B-30R-CC, 8, through 42R-2, 1 | 390.65–483.22390.83–483.59 | 92.5792.76 | Santonian–middle Cenomanian | Calcareous claystone with organic matter; clayey chalk with organic matter; limestone |
V | 1260A-53R-2, 42, through 54R-CC, 21260B-42R-2, 1, through 46R-CC, 32 | 483.22–491.90483.59–507.37 | 8.6823.78 | middle–late Albian | Clayey limestone with quartz; calcareous claystone with quartz |
Note: * = not recovered from Hole 1260B.