| San Pablo Formation | |
|---|---|
| Stratigraphic range: Miocene | |
| Type | Geologic formation |
| Sub-units | Briones Sandstone, Cierbo Sandstone, Neroly Sandstone |
| Underlies | Pinole Tuff Formation |
| Thickness | 1,500 feet (460 m) |
| Location | |
| Region | Contra Costa County, California |
| Country | United States |
The San Pablo Formation is a Late/Upper Miocene epoch geologic formation of the East Bay region in the San Francisco Bay Area, California.
It is found on the south shore of San Pablo Bay, in western Contra Costa County.
Geology
It is series of marine sandstones with tuffs and ashes. Its subunits, listed alphabetically, are Briones Sandstone, Cierbo Sandstone, Neroly Sandstone, and underlies the Pinole Tuff Formation.
It preserves fossils dating back to the Neogene period.
See also
- Miocene California geology
- List of fossiliferous stratigraphic units in California
- Paleontology in California
References
- ^ Google Books: "Names and Definitions of the Geologic Units of California", Issues 825-830, pg 73.
- K. J. Murata; Karen R. Whiteley (1973). "Zeolites in the Miocene Briones Sandstone and related formations of the central Coast Ranges, California" (PDF). Journal of Research of the U.S. Geological Survey. 1 (3): 255. ISSN 0091-374X. Wikidata Q93281155.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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