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Chatsworth Formation

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Cretaceous geologic formation in Southern California
Chatsworth Formation
Stratigraphic range: Campanian & Maestrichtian epochs of Cretaceous
Chatsworth Formation at Stoney Point California
TypeFormation
Location
RegionLos Angeles County and Ventura County, California
CountryUnited States
ExtentSimi Hills, Santa Susana Mountains

The Chatsworth Formation is a Cretaceous period sandstone geologic formation in the Simi Hills and western Santa Susana Mountains of southern California.

It is found in western Los Angeles County and eastern Ventura County. The formation's thickness can be more than 610 metres (2,000 ft).

Fossils

The sedimentary marine formation preserves fossils dating from the Middle Campanian to Early Maestrichtian epochs of the Cretaceous period. It has diverse molluscan faunas.

The most common taxa are:

See also

References

  1. ^ AAPG Archives: Paleographic Interpretation of the Chatsworth Formation
  2. Cleanuprocketdyne.org: Santa Susana Field Lab links to Chatsworth Formation groundwater contamination
  3. ^ USGS.gov: "Preliminary geologic map of the Santa Susana quadrangle, Southern California"
  4. Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
  5. Overview of late cretaceous marine gastropods from the Simi Hills, by Mary Stecheson, Department of Geological Sciences, California State Univ, Northridge.
Cretaceous Period
Lower/Early CretaceousUpper/Late Cretaceous


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