San Jose Formation | |
---|---|
Stratigraphic range: Wasatchian ~ | |
Type | Formation |
Sub-units | Cuba Mesa, Ditch Canyon, Llaves, Regina & Tapicitos Members |
Overlies | Nacimiento Formation |
Thickness | 430 m (1,410 ft) |
Lithology | |
Primary | Sandstone |
Other | Shale |
Location | |
Coordinates | 36°17′N 107°04′W / 36.29°N 107.06°W |
Approximate paleocoordinates | 41°12′N 91°42′W / 41.2°N 91.7°W |
Region | New Mexico |
Country | United States |
Extent | San Juan Basin |
Type section | |
Named for | San Jose Valley (36°10′48″N 106°55′37″W / 36.180°N 106.927°W) |
Named by | G.G. Simpson |
Year defined | 1948 |
The San Jose Formation is an Early Eocene (Wasatchian in the NALMA classification) geologic formation in the San Juan Basin of New Mexico and Colorado.[1]