| Unit/Subunit | Hole, core, section, interval (cm) |
Depth (mbsf) |
Thickness (m) | Age |
Lithology
|
|---|---|---|---|---|---|
|
|
207- |
|
|
|
|
| I | 1259A-1R-1, 0, through 1259A-5R-2, 0 | 0.00–37.90 | 37.90 | early Miocene and slumped Oligocene | Foraminifer nannofossil ooze |
| IIA | 1259A-5R-2, 0, through 1259A-15R-1, 0 | 37.90–130.90 | 93.00 | late Eocene, early Oligocene, and early Miocene | Foraminifer nannofossil chalk |
| IIB | 1259A-15R-1, 0, through 1259A-31R-1, 0 | 130.90–285.10 | 154.20 | middle–late Eocene | Siliceous (radiolarian) foraminifer nannofossil chalk |
| IIC | 1259A-31R-1, 0, through 1259A-39R-5, 139 | 285.10–368.24 | 83.14 | early–middle Eocene | Foraminifer nannofossil chalk |
| (P/E at base) | 1259B-2R-1, 0, through 1259B-8R-4, 106 | 305.00–368.26 | 63.26 |
|
|
|
|
1259C-1R-1, 0, through 1259C-7R-2, 120 | 308.00–366.55 | 58.55 |
|
|
| IIIA | 1259A-39R-5, 139, through 1259A-47R-3, 75 | 368.24–442.33 | 74.09 | late Paleocene | Clayey nannofossil chalk |
| (K/T at base) | 1259B-8R-4, 106, through 1259B-13R-1, 48 | 368.26–445.18 | 76.92 |
|
|
|
|
1259C-7R-2, 120, through 1259C-8R-5, 98 | 366.55–442.47 | 75.92 |
|
|
| IIIB | 1259A-47R-3, 75, through 1259A-52R-5, 13 | 442.33–492.96 | 50.63 | Campanian–Maastrichtian | Nannofossil chalk, calcareous siltstone, and glauconitic claystone |
|
|
1259B-13R-1, 48, through 1259B-18R-7, 53 | 445.18–494.52 | 49.34 |
|
|
|
|
1259C-8R-5, 98, through 1259C-11R-3, 50 | 442.47–492.43 | 49.96 |
|
|
| IV | 1259A-52R-5, 13, through 1259A-60R-1, 0 | 492.96–549.10 | 56.14 | Santonian, Coniacian, and Turonian | Calcareous claystone with organic matter |
|
|
1259B-18R-7, 53, through 1259B-24R-4, 42 | 494.52–548.52 | 54.08 |
|
|
|
|
1259C-11R-3, 50, through 1259C-19R-1, 0 | 492.43–547.10 | 53.29 |
|
|
| V | 1259A-60R-1, 0, through 1259A-60R-1, 140 | 549.10–550.50 | 1.40 | Age unknown | Quartz sandstone, silty claystone, and calcareous siltstone |
|
|
1259B-24R-4, 42, through 1259B-25R-CC, 9 | 548.52–556.01 | 7.49 |
|
|
|
|
1259C-19R-1, 0, through 1259C-19R-4, 86 | 547.10–551.40 | 4.30 |
|
|
Note: P/E = Paleocene/Eocene boundary, K/T = Cretaceous/Tertiary boundary.