San Pablo Formation

San Pablo Formation
Stratigraphic range: Miocene
Type Geologic formation
Underlies Pinole Tuff Formation
Overlies Briones Formation
Thickness 1,500 feet (460 m)
Location
Region Contra Costa County,
California
Country United States

The San Pablo Formation is an 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. It overlies the Briones Formation, and underlies the Pinole Tuff Formation. [1]

It preserves fossils dating back to the Neogene period. [2]

See also

References

  1. 1 2 3 Google Books: "Names and Definitions of the Geologic Units of California", Issues 825-830, pg 73.
  2. Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014.


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