Martinez Formation
| Martinez Formation | |
|---|---|
| Stratigraphic range: Eocene | |
| Type | Geologic formation | 
| Underlies | Tejon Formation (regionally), Ione Formation (regionally) | 
| Overlies | Chico Formation | 
| Location | |
| Region | California | 
| Country | United States | 
The Martinez Formation is an Eocene Epoch geologic formation in California.