| Pinole Tuff Formation Stratigraphic range: Neogene | |
|---|---|
| Type | Geologic formation |
| Underlies | Orinda Formation, Monterey Formation Group units |
| Overlies | Neroly Formation San Pablo Formation |
| Thickness | 270 metres (890 ft) |
| Lithology | |
| Primary | Tuff, breccia |
| Location | |
| Region | Contra Costa County California |
| Country | United States |
| Type section | |
| Named for | Pinole, California |
The Pinole Tuff Formation is a geologic formation of the East Bay region of the San Francisco Bay Area in California.
It is found near Pinole and Rodeo area at San Pablo Bay and the Briones Hills of western Contra Costa County.
It preserves fossils, including Oncorhynchus rastrosus [1] and fragments of a proto-hipparion prehistoric horse, dating back to the Neogene period.
The Merced Formation is a geologic formation in California, and also in Oregon and Washington state. It is named for Lake Merced, a natural lake on the western San Francisco coastline.
The Pigeon Point Formation is a geologic formation in San Mateo County, California.
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.
The Moraga Formation or Moraga Volcanics is a Pliocene epoch volcanic geologic formation in the Berkeley Hills of the East Bay region of the San Francisco Bay Area, California.
The Mulholland Formation is a Pliocene epoch geologic formation in the Berkeley Hills and San Leandro Hills of the East Bay region of the San Francisco Bay Area, California. It is found within Alameda County and Contra Costa County.
The Neroly Formation is a geologic formation in the East Bay region of the San Francisco Bay Area in California.
The Orinda Formation is a Miocene epoch geologic formation in the Berkeley Hills of the East Bay region of the San Francisco Bay Area, California.
The Briones Formation is a Late/Upper Miocene epoch geologic formation of the East Bay region in the San Francisco Bay Area, California.
The Crowder Formation is a geologic formation in the Central and Western Mojave Desert, in northern Los Angeles County and eastern San Bernardino County, in Southern California.
The Chanac Formation is a Cenozoic Era sandstone geologic formation in the southeastern San Joaquin Valley, within Kern County, California.
The Tulare Formation is a Pliocene to Holocene epoch geologic formation in the central and southern San Joaquin Valley of central California.
The Santa Margarita Formation is a Neogene Period geologic formation in the San Joaquin Valley of central California.
The San Pablo Formation is a Late/Upper Miocene epoch geologic formation of the East Bay region in the San Francisco Bay Area, California.
The Friars Formation is a geologic formation in San Diego County, Southern California.
The La Jolla Group is a group of geologic formations in coastal southwestern San Diego County, Southern California. Its locations include the coastal La Jolla San Diego region.
The Mission Valley Formation is a marine sandstone geologic formation in the Mission Valley region of southwestern San Diego County in Southern California.
The Pomerado Conglomerate Formation is a geologic formation in southwestern San Diego County, California.
The Scripps Formation is a geologic formation in coastal San Diego County, California.
The Stadium Conglomerate is a geologic formation in San Diego County, California. It is found at the northern end of Mission Valley near San Diego Stadium.
The Ocotillo Formation is a Pliocene fluvial-alluvial fan geologic formation in the Colorado Desert of Southern California.
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