The Speiser Shale or Speiser Formation is a geologic formation in Kansas, Oklahoma, and Nebraska dating to the early Permian period.[1]

Speiser Shale
Stratigraphic range: Permian
TypeFormation
Unit ofCouncil Grove Group[1]
Lithology
PrimaryShale
OtherMudstone
Location
RegionKansas, Oklahoma, Nebraska
CountryUnited States
Type section
Named forSpeiser Township of Richardson County, Nebraska[1]

See also

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References

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  1. ^ a b c "Geologic Unit: Speiser". National Geologic Database. Geolex — Unit Summary. United States Geological Survey. Retrieved 2020-12-24.