San Joaquin Formation
| San Joaquin Formation Stratigraphic range: Neogene |
|
|---|---|
| Type | Geologic formation |
| Underlies | Tulare Formation |
| Overlies | Etchegoin Formation |
| Location | |
| Region | San Joaquin Valley, California |
| Country | United States |
The San Joaquin Formation is a Pliocene epoch geologic formation in the lower half of the San Joaquin Valley in central California.
With the underlying Etchegoin Formation, it is associated with the numerous oil fields in the central and southern San Joaquin Valley. It is overlaid by the Tulare Formation.
It preserves fossils dating back to the Neogene period of the Cenozoic Era.
...
Wikipedia