- Source: Palm Spring Formation
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. It records the development of the prehistoric Colorado River delta cone into a barrier excluding marine waters from the Salton Trough.
= Fossils
=
It preserves fossils from the Pleistocene Epoch, during the Quaternary Period of the Cenozoic Era.
Lower Pliocene sub−period petrified wood is found in Anza-Borrego Desert State Park. The Lauraceae is represented by petrified Umbellularia, the Salicaceae with petrified Populus and Salix, and the Juglandaceae with petrified Juglans.
See also
Ocotillo Formation — fluvial-alluvial fan Pliocene formation
Quaternary California
List of fossiliferous stratigraphic units in California
Paleontology in California
References
Further reading
Weber, F. Harold (1963). Geology and mineral resources of San Diego County, California. California Division of Mines and Geology. p. 32.
Kata Kunci Pencarian:
6.806
7.7
7
6.212
7
5.395
7.1
8
4.504
6.059
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