Chadron Formation
Chadron Formation Stratigraphic range: Late Eocene ~ | |
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Type | Geological formation |
Unit of | White River Formation |
Underlies | Brule Formation |
Overlies | marine indet. |
Lithology | |
Primary | Fine grained clastic rocks |
Other | Tuff, Sandstone |
Location | |
Region | Nebraska, Wyoming, North Dakota, South Dakota |
Country | United States |
Type section | |
Named for | Chadron, Nebraska |
Chadron Formation is a rock formation in North Dakota, South Dakota, northwestern Nebraska, and eastern Wyoming. It is named after the town of Chadron, Nebraska. It was mapped out by in the 1950s.[1]
Wikimedia Commons has media related to Chadron Formation. |
References[]
- ^ Nebraska Academy of Sciences (1985). Transactions of the Nebraska Academy of Sciences and Affiliated Societies. The Academy. p. 128. Retrieved 14 December 2012.
Categories:
- Paleogene geology of North Dakota
- Paleogene geology of South Dakota
- Paleogene Colorado
- Paleogene geology of Nebraska
- Paleogene geology of Wyoming
- North Dakota geography stubs