| Friars Formation | |
|---|---|
| Stratigraphic range: Eocene | |
| Type | Geologic formation |
| Unit of | La Jolla Group |
| Underlies | Stadium Conglomerate |
| Overlies | Scripps Formation |
| Thickness | 0–50 metres (0–164 ft) |
| Location | |
| Region | San Diego County, California |
| Country | United States |
| Type section | |
| Named for | Friars Road |
The Friars Formation is a geologic formation in San Diego County, Southern California. [1] [2]
It is the uppermost unit of the La Jolla Group. The rocks are nonmarine and lagoonal sandstone and claystone, named for exposures along the north side of Mission Valley near Friars Road.
It reaches a maximum thickness of 50 metres (160 ft) between Mission Valley and Carmel Valley.
It preserves fossils dating back to the middle and late Eocene epoch of the Paleogene period, during the Cenozoic Era. [3]
The Cajon Valley Beds is a sedimentary geologic formation in the El Cajon Valley of southwestern San Diego County, California.
The Etchegoin Formation is a Pliocene epoch geologic formation in the lower half of the San Joaquin Valley in central California.
The Coso Formation is a geologic formation in the Coso Range of the Mojave Desert, in Inyo County, California.
The Chanac Formation is a Cenozoic Era sandstone geologic formation in the southeastern San Joaquin Valley, within Kern County, California.
The San Joaquin Formation is a Pliocene epoch geologic formation in the lower half of the San Joaquin Valley in central California.
The Capay Formation is a geologic formation in Yolo County, western Sacramento Valley, California. It preserves fossils dating back to the Paleogene period.
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 Llajas Formation is a non-marine to marine conglomerate geologic formation in Southern California.
The Martinez Formation is an Eocene Epoch geologic formation in California.
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 Poway Group is a geologic group in San Diego County, Southern California. It preserves fossils dating back to the Paleogene period.
The San Emigdio Formation is a geologic formation in California. It preserves fossils dating back to the Paleogene period.
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 Sweetwater Formation is a geologic formation in California. It preserves fossils from the Late Eocene period. It underlies the Otay Formation, which reserves fossils of the Oligocene to Miocene periods of the Cenozoic Era.
The Tejon Formation is a Paleogene period geologic formation in California.
The San Francisquito Formation is a geologic formation located in northern Los Angeles County, California.
The Brawley Formation is a geologic formation in the Colorado Desert of southern California, located in northwestern Imperial County and eastern San Diego County.
The Otay Formation is a geologic formation in San Diego County, California and northern Baja California state (Mexico). It is within the Peninsular Ranges province.
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