| Stadium Conglomerate | |
|---|---|
| Stratigraphic range: Eocene | |
| Type | Geologic formation |
| Underlies | Mission Valley Formation |
| Overlies | Friars Formation |
| Lithology | |
| Primary | Conglomerate |
| Location | |
| Region | San Diego County, California |
| Country | United States |
| Type section | |
| Named for | San Diego Stadium |
The Stadium Conglomerate is a geologic formation in San Diego County, California. It is found at the northern end of Mission Valley near Snapdragon Stadium.
The formation consists of a massive cobble conglomerate with a dark yellowish-brown coarse-grained sandstone matrix. The conglomerate has dispersed lenses of fossiliferous crossbedded sandstone.
It overlies the Friars Formation, and underlies the sandstone Mission Valley Formation.
It preserves fossils dating back to the Eocene epoch of the Paleogene period, during the Cenozoic Era. The fossils include calcareous nanoplankton.
