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Sumner Group

Sumner Group
Stratigraphic range: Lower Permian
TypeGroup
Sub-unitsStone Corral Formation,
Ninnescah Shale,
Wellington Formation
UnderliesNippewalla Group
OverliesChase Group
Lithology
PrimaryShale, dolomite
OtherSalt, anhydrite, mudstone
Location
RegionKansas
CountryUnited States
Type section
Named forSumner County, Kansas[1]
Named byF.W. Cragin[1]
Year defined1896

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

References

  1. ^ a b Cragin, F.W., 1896, The Permian system in Kansas: Colorado College Studies, v. 6, p. 1-48.
  2. ^ "Geologic Unit: Sumner". National Geologic Database. Geolex — Significant Publications. United States Geological Survey. Retrieved 2021-11-28.


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