Tensleep Sandstone
The Tensleep Sandstone is a geological formation of Pennsylvanian to very early Permian age in Wyoming.
| Tensleep Formation | |
|---|---|
| Stratigraphic range: Late Pennsylvanian-very Early Permian ~ | |
| Type | Geological formation |
| Underlies | Phosphoria & Chugwater Formations |
| Overlies | Sacajewea & Amsden Formations |
| Thickness | up to 535 feet (160 m) |
| Lithology | |
| Primary | Sandstone |
| Other | Limestone |
| Location | |
| Coordinates | 42.6°N 108.2°W |
| Approximate paleocoordinates | 4.3°N 35.2°W |
| Region | Wyoming |
| Country | USA |
| Type section | |
| Named for | Ten Sleep, Wyoming |
| Named by | N.H. Darton |
| Year defined | 1904 |
Tensleep Sandstone (the United States) Tensleep Sandstone (Wyoming) | |
The formation is composed of fine- to medium-grained sandstone, light gray and yellowish gray; generally slightly to moderately calcareous; some dolomite and sandy dolomite beds; mostly thick to massive sets of low-angle, wedge-planar crossbeds of dunes. Forms cliffs 61-91m (200-300 feet) thick.
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