Sumner Group
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| Sumner Group | |
|---|---|
| Stratigraphic range: Lower Permian | |
| Type | Group |
| Sub-units | Stone Corral Formation, Ninnescah Shale, Wellington Formation |
| Underlies | Nippewalla Group |
| Overlies | Chase Group |
| Lithology | |
| Primary | Shale, dolomite |
| Other | Salt, anhydrite, mudstone |
| Location | |
| Region | Kansas |
| Country | United States |
| Type section | |
| Named for | Sumner County, Kansas[1] |
| Named by | F.W. Cragin[1] |
| Year defined | 1896 |
The Sumner Group is a sedimentary geologic group of Lower Permian age. It is defined in east-central Kansas and extends into Oklahoma and Nebraska as well as the Colorado subsurface where it is undivided.[2]
See also
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References
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