Mancos Shale
The Mancos Shale or Mancos Group is a Late Cretaceous (Upper Cretaceous) geologic formation of the Western United States.
| Mancos Shale | |
|---|---|
| Stratigraphic range: Mid Albian-Campanian ~ | |
Mancos Shale at its type location just north of Mancos, Colorado | |
| Type | Geologic formation |
| Sub-units | See text |
| Underlies | Mesaverde Formation |
| Overlies | Dakota Group |
| Lithology | |
| Primary | Shale |
| Location | |
| Coordinates | 37.353°N 108.297°W |
| Region | Arizona, Colorado, New Mexico, Utah, Wyoming |
| Country | United States |
| Extent | Basin and Range, Colorado Plateau & San Juan Mountains Provinces |
| Type section | |
| Named for | Mancos, Colorado |
Mancos Shale (the United States) Mancos Shale (Colorado) | |
The Mancos Shale was first described by Cross and Purington in 1899 and was named for exposures near the town of Mancos, Colorado.
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