Powell Formation

Powell Formation
Stratigraphic range: Ordovician
TypeFormation
UnderliesEverton Formation
OverliesCotter Formation
Lithology
PrimaryDolomite
OtherShale, sandstone, chert
Location
RegionArkansas, Missouri and Virginia
CountryUnited States
Type section
Named forPowell railroad station (now abandoned), Marion County, Arkansas
Named byEdward Oscar Ulrich

The Powell Formation or Powell Dolomite is a geologic formation in northern Arkansas, southeast Missouri and Virginia. It contains gastropod, cephalopod, and trilobite fossils dating back to the Ordovician Period.

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