Cutler Formation
The Cutler Formation or Cutler Group is a rock unit that is exposed across the U.S. states of Arizona, northwest New Mexico, southeast Utah and southwest Colorado. It was laid down in the Early Permian during the Wolfcampian epoch.
| Cutler Formation | |
|---|---|
| Stratigraphic range: | |
Cutler Formation near the type locality, Portland, Ouray County, Colorado | |
| Type | Geological formation |
| Sub-units | De Chelly Sandstone, White Rim Sandstone, Organ Rock Shale, Cedar Mesa Sandstone, Elephant Canyon Formation, Halgaito Shale |
| Underlies | Chinle Formation Moenkopi Formation |
| Overlies | Hermosa Group |
| Thickness | over 1,000 feet (300 m) |
| Lithology | |
| Primary | Iron-rich arkose sandstone |
| Location | |
| Coordinates | 38.096°N 107.702°W |
| Approximate paleocoordinates | 0.7°N 36.1°W |
| Region | Colorado Plateau |
| Country | United States |
| Extent | Arizona Colorado New Mexico Utah |
| Type section | |
| Named for | Cutler Creek, north of Ouray, Co |
| Named by | Cross & Howe |
| Year defined | 1905 |
Cutler Formation (the United States) Cutler Formation (Colorado) | |
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