| Interval | ||
|---|---|---|
| 0 - 1 | Oligocene |
siliceous, radiolaria;
sandy mud or ooze
clay minerals; mud or ooze |
| 1 - 160 | Oligocene |
calcareous, nannofossils;
mud or ooze
siliceous; sandy mud or ooze clay minerals |
| 160 - 203 | Oligocene |
calcareous, nannofossils;
mud or ooze
siliceous; sandy mud or ooze clay minerals |
| 203 - 464 | Oligocene | calcareous, nannofossils; mud or ooze clay minerals |