Friars Formation
Stratigraphic range: Eocene
TypeGeologic formation
Unit ofLa Jolla Group
UnderliesStadium Conglomerate
OverliesScripps Formation
Thickness0–50 metres (0–164 ft)
Location
RegionSan Diego County, California
CountryUnited States
Type section
Named forFriars Road

The Friars Formation is a geologic formation in San Diego County, Southern California.[1][2]

Geology

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.

Fossils

It preserves fossils dating back to the middle and late Eocene epoch of the Paleogene period, during the Cenozoic Era.[3]

See also

References

  1. Kennedy, Michael P. (1975). Geology of the San Diego metropolitan area, California. California Division of Mines and Geology.
  2. Geiconsultants.com: Geologic Formations of Western San Diego County, by Jeffrey D. Brown, R.G., C.E.G. − circa 1996.
  3. Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.

Further reading


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