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Imperial Formation

Imperial Formation
Stratigraphic range:
1.) Canada: Devonian of Paleozoic Era.
2.) California: Pliocene of Cenozoic Era.
TypeTwo separate geologic formations
UnderliesPalm Spring Formation (California)
OverliesOcotillo Formation (California)
Location
Region1.) Northwest Territories,
Canada
2.) Colorado Desert,
Imperial County, California,
United States

The Imperial Formation is the name of two distinct and unrelated geologic formations in North America, of different geologic Eras.

Separate formations

Canadian Paleozoic Era formation

The older Imperial Formation occurs in the Northwest Territories of Canada. It preserves fossils dating back to the Devonian period of the Paleozoic Era.[1]

Californian Cenozoic Era formation

The younger Imperial Formation occurs in the Colorado Desert, in Imperial County of Southern California. It dates to the Zanclean−Lower Pliocene stage of the Pliocene Epoch, during the Neogene Period of the Cenozoic Era.

It underlies the Palm Spring Formation, and overlies the Ocotillo Formation.[2]

See also

References

  1. ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.; Paleozoic Era Canada.
  2. ^ San Diego State University.edu: "Environments of deposition, Pliocene Imperial Formation, Southeast Coyote Mountains, Imperial County, California"; Bell, Patricia J.; 1980.


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