Cabrillo Formation

Cabrillo Formation
Stratigraphic range: Maastrichtian stage,
Late Cretaceous Epoch
Type Geological formation
Unit of Rosario Group
Overlies Point Loma Formation
Lithology
Primary sandstones, conglomerates
Location
Region North America
Country United States
Extent Point Loma and Mount Soledad,
San Diego County
California
Type section
Named for Cabrillo National Monument
Named by Kennedy and Moore, 1971[1]

The Cabrillo Formation is a Maastrichtian stage geologic formation in coastal San Diego County, southern California. It is part of the Rosario Group.[2]

The Maastrichtian stage is of the Late Cretaceous Epoch, during the Mesozoic Era. It is found on the eastern and southwestern sides of the Point Loma peninsula including in Cabrillo National Monument, and on Mount Soledad, both within the city of San Diego.[2][3]

The Cabrillo Formation overlies the Point Loma Formation.

Fossils

A single tooth from the cartilaginous fish Squalicorax has been recovered from the Cabrillo Formation sediments of Cabrillo National Monument.[2][4]

See also

  • Cretaceous California
  • Geology of San Diego County, California

References

  1. ↑ Kennedy, M.P., and Moore, G.W., 1971, Stratigraphic relations of Upper Cretaceous and Eocene formations, San Diego coastal area, California: American Association of Petroleum Geologists Bulletin, v. 55, no. 5, p. 709-722. article
  2. 1 2 3 "Cabrillo National Park," Hunt, Santucci, and Kenworthy (2006); page 65.
  3. ↑ "General Plan Final Program EIR: 3.11 Paleontological Resources" (PDF). City of San Diego.
  4. ↑ Hunt, ReBecca K., Vincent L. Santucci and Jason Kenworthy. 2006. "A preliminary inventory of fossil fish from National Park Service units." in S.G. Lucas, J.A. Spielmann, P.M. Hester, J.P. Kenworthy, and V.L. Santucci (ed.s), Fossils from Federal Lands. New Mexico Museum of Natural History and Science Bulletin 34, pp. 63–69.

Further reading

  • Kennedy, Michael P. (1975). Geology of the San Diego metropolitan area, California. California Division of Mines and Geology.


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