Chase Group

Chase Group
Stratigraphic range: Lower Permian
TypeGroup
Sub-unitsNolans Limestone
Odell Shale
Winfield Limestone
Doyle Shale
Barneston Limestone
Matfield Shale
Wreford Limestone
UnderliesSumner Group
OverliesCouncil Grove Group
Lithology
PrimaryLimestone, shale, mudstone
OtherFlint, paleosols
Location
RegionKansas with Oklahoma and Nebraska
CountryUnited States
Type section
Named forChase County, Kansas[1]
Named byC.S. Prosser[1]
Year defined1895

The Chase Group is a sedimentary rock unit 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. The unit was assigned geologic group rank around 1902.[2]

See also

References

  1. ^ a b Prosser, C.S., 1895, The classification of the upper Paleozoic rocks of central Kansas: Journal of Geology, v. 3, nos. 6-7, p. 682-705, 764-800.
  2. ^ "Geologic Unit: Chase". National Geologic Database. Geolex — Significant Publications. United States Geological Survey. Retrieved 2021-11-28.


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