| Claremont Shale | |
| Type: | Geologic formation |
| Age: | Miocene epoch, Neogene Period |
| Period: | Miocene |
| Namedfor: | Claremont Canyon |
| Region: | Berkeley Hills Alameda County California |
| Country: | United States |
| Unitof: | Monterey Formation Group |
| Underlies: | Oursan Sandstone |
| Overlies: | Sobrante Sandstone |
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]