San Benito Gravels
| San Benito Gravels Stratigraphic range: Quaternary Epoch | |
|---|---|
| Type | Geologic formation |
| Location | |
| Region | San Benito County, California |
| Country | United States |
| Type section | |
| Named for | Lake San Benito (prehistoric) |
The San Benito Gravels is a Quaternary Epoch geologic formation in California.
Geology
The Pleistocene Period Lake San Benito and others were formed in the prehistoric Pajaro River-San Benito River basin. The lakes were along 10 miles (16 km) miles on each side of the San Andreas Fault, the movements of which were responsible for the formation of those lakes. [1]
The Purisima Formation surrounds the San Benito Gravels, and was a primary source of the silt and gravels deposited in them. [1]
The present day San Benito River cuts a channel through the formation.
Fossils
The San Benito Gravels formation preserves Cenozoic Era non−marine fossils. [2]
See also
References
- 1 2 "Pleistocene Lake San Benito", by Olaf P. Jenkins, retired Chief of the California Division of Mines and Geology, from California Geology, July 1973, Vol. 26, No. 7.
- ↑ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014.
| Quaternary | ||
|---|---|---|
| Pleistocene | Holocene | |
| Early | Middle | Late | Preboreal | Boreal | Atlantic | Subboreal | Subatlantic | |
| Preceded by Proterozoic Eon | Phanerozoic Eon | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Paleozoic Era | Mesozoic Era | Cenozoic Era | ||||||||||
| Cambrian | Ordovician | Silurian | Devonian | Carboniferous | Permian | Triassic | Jurassic | Cretaceous | Paleogene | Neogene | 4ry | |
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