Palm Spring Formation
| Palm Spring Formation | |
|---|---|
| Stratigraphic range: Pliocene | |
| Type | Formation |
| Underlies | Vallecito Badlands |
| Location | |
| Region | Colorado Desert, California |
| Country | United States |
The Palm Spring Formation is a Pliocene Subperiod geologic formation in the eastern Colorado Desert of Imperial County and San Diego County County, Southern California.
Description
The Palm Spring Formation is an extensively-exposed delta-plain deposit debouched by the ancestral Colorado River across the subsiding Salton Trough. [1]
It preserves fossils from the Lower Pliocene of the Neogene Period.
Lower Pliocene sub−period petrified wood is found in Anza-Borrego Desert State Park. [2] The Lauraceae is represented by petrified Umbellularia, the Salicaceae with petrified Populus and Salix, and the Juglandaceae with petrified Juglans. [2]
See also
- Ocotillo Formation — fluvial-alluvial fan Pliocene formation
- List of fossiliferous stratigraphic units in California
- Paleontology in California
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014.
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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.
- ^ a b Sciencedirect.com: "Lower Pliocene petrified wood from the Palm Spring Formation, Anza Borrego Desert State Park, California"; Review of Palaeobotany and Palynology Volume 56, Issues 3–4, September 1988, Pages 183-198.