Martinez Formation
Eocene Epoch geologic formation in California
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The Martinez Formation is an Eocene Epoch geologic formation in California.
UnderliesTejon Formation (regionally),
Ione Formation (regionally)
Ione Formation (regionally)
OverliesChico Formation
RegionCalifornia
| Martinez Formation | |
|---|---|
| Stratigraphic range: Eocene | |
| Type | Geologic formation |
| Underlies | Tejon Formation (regionally), Ione Formation (regionally) |
| Overlies | Chico Formation |
| Location | |
| Region | California |
| Country | United States |
Geology
The formation regionally overlies the Chico Formation and regionally underlies the Tejon Formation or the Ione Formation.
It is exposed in the Clevelin Hills in Riverside County, Santa Ana Mountains in Orange County, northwestern Santa Monica Mountains near Calabasas (California) in Los Angeles County, and north of Mount Diablo/south of the Sacramento Delta in Contra Costa County.[1]
Fossils
The formation preserves fossils dating back to the Paleogene period.[2]
