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

1. ↑ 1.0 1.1 1.2 Google Books: "Names and Definitions of the Geologic Units of California", Issues 825-830, pg 73.
2. ↑ , pp. 255, https://pubs.usgs.gov/journal/1973/vol1issue3/report.pdf , Wikidata Q93281155
3. ↑ ((Various Contributors to the Paleobiology Database)). "Fossilworks: Gateway to the Paleobiology Database". http://www.fossilworks.org/cgi-bin/bridge.pl?action=home.

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