| 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. [1]
It is found on the south shore of San Pablo Bay, in western Contra Costa County. [1]
Geology
It is series of marine sandstones with tuffs and ashes. Its subunits, listed alphabetically, are Briones Sandstone, Cierbo Sandstone, Neroly Sandstone, [2] and underlies the Pinole Tuff Formation. [1]
It preserves fossils dating back to the Neogene period. [3]
See also
- Miocene California geology
- List of fossiliferous stratigraphic units in California
- Paleontology in California
References
- ^ a b c 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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