From Wikipedia - Reading time: 4 min
| Claremont Shale | |
|---|---|
| Stratigraphic range: Miocene epoch , Neogene Period | |
| Type | Geologic formation |
| Unit of | Monterey Formation Group |
| Underlies | Oursan Sandstone |
| Overlies | Sobrante Sandstone |
| Location | |
| Region | Berkeley Hills Alameda County California |
| Country | United States |
| Type section | |
| Named for | Claremont Canyon |
The Claremont Shale is a Miocene epoch geologic formation in the Berkeley Hills of the East Bay region of the San Francisco Bay Area, California.[1]
It is found within the Claremont Canyon area of the Berkeley Hills in Alameda County and Contra Costa County.[1]
The Claremont Shale formation preserves fossils dating back to the Miocene epoch of the Neogene period.[2]