Sandia Formation
| Sandia Formation | |
|---|---|
| Stratigraphic range: | |
Sandia Formation in the Sandia Mountains | |
| Type | Formation |
| Underlies | Madera Group |
| Overlies | Osha Canyon Formation |
| Thickness | 1,530 m (5,020 ft) |
| Lithology | |
| Primary | Shale |
| Other | Sandstone |
| Location | |
| Coordinates | 35°58′35″N 105°17′00″W / 35.97639°N 105.28333°W |
| Region | New Mexico |
| Country | United States |
| Type section | |
| Named for | Sandia Mountains |
| Named by | C.L. Herrick |
| Year defined | 1900 |
The Sandia Formation is a geologic formation in New Mexico, United States. Its fossil assemblage is characteristic of the early Pennsylvanian.