Palm Spring Formation
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| Palm Spring Formation | |
|---|---|
| Stratigraphic range: Lower Pleistocene | |
| Type | Geologic formation |
| Underlies | Vallecito Badlands |
| Overlies | Imperial Formation, Ocotillo Formation |
| Location | |
| Region | Colorado Desert, California |
| Country | United States |
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The Palm Spring Formation is a Pleistocene Epoch geologic formation in the eastern Colorado Desert of Imperial County and San Diego County County, Southern California.
Geology
The Palm Spring Formation is an extensively-exposed delta-plain deposit debouched by the ancestral Colorado River across the subsiding Salton Trough.[1] It records the development of the prehistoric Colorado River delta cone into a barrier excluding marine waters from the Salton Trough.[2]
Fossils
It preserves fossils from the Pleistocene Epoch, during the Quaternary Period of the Cenozoic Era.[3]
Lower Pliocene sub−period petrified wood is found in Anza-Borrego Desert State Park.[4] The Lauraceae is represented by petrified Umbellularia, the Salicaceae with petrified Populus and Salix, and the Juglandaceae with petrified Juglans.[4]
See also
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- Ocotillo Formation — fluvial-alluvial fan Pliocene formation
- Template:C
- List of fossiliferous stratigraphic units in California
- Paleontology in California
References
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- ^ National Park Service: "The FISH CREEK CANYON ICHNOFAUNA: a PLIOCENE (BLANCAN) Vertebrate Footprint Assemblage from Anza-Borrego Desert State Park, California"; by Paul Remeika.
- ^ San Diego State University.edu: "Environments of deposition, Pliocene Imperial Formation, Southeast Coyote Mountains, Imperial County, California" Script error: No such module "webarchive".; Bell, Patricia J.; 1980.
- ^ Page Module:Citation/CS1/styles.css has no content.Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.
- ^ a b Page Module:Citation/CS1/styles.css has no content.Remeika, Paul; Fischbein, Irwin W.; Fischbein, Steven A. (1988). "Lower Pliocene petrified wood from the Palm Spring Formation, Anza Borrego Desert State Park, California". Review of Palaeobotany and Palynology. 56 (3–4): 183–198. doi:10.1016/0034-6667(88)90057-7.
Further reading
- Page Module:Citation/CS1/styles.css has no content.Weber, F. Harold (1963). Geology and mineral resources of San Diego County, California. California Division of Mines and Geology. p. 32.
