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Imperial Formation 
Summary
The Imperial Formation is the name of two distinct and unrelated geologic formations in North America, of different geologic Eras.
| Imperial Formation | |
|---|---|
| Stratigraphic range: 1.) Canada: Devonian of Paleozoic Era. 2.) California: Pliocene of Cenozoic Era. | |
| Type | Two separate geologic formations |
| Underlies | Palm Spring Formation (California) |
| Overlies | Ocotillo Formation (California) |
| Location | |
| Region | 1.) Northwest Territories, Canada 2.) Colorado Desert, Imperial County, California, United States |
Separate formations edit
Canadian Paleozoic Era formation edit
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 edit
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 edit
References edit
- ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.; Paleozoic Era Canada.
- ^ San Diego State University.edu: "Environments of deposition, Pliocene Imperial Formation, Southeast Coyote Mountains, Imperial County, California"; Bell, Patricia J.; 1980.