The Smithville Formation or Smithville Dolomite is a geologic formation in Arkansas. It preserves fossils dating back to the Ordovician period.

Smithville Formation
Stratigraphic range: Ordovician
TypeFormation
Sub-unitsBlack Rock Limestone Member
UnderliesEverton Formation
OverliesPowell Formation
Lithology
Primarydolomite
Location
RegionArkansas
CountryUnited States
Type section
Named forSmithville, Lawrence County, Arkansas[1]
Named byEdward Oscar Ulrich[2]

See also

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References

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  1. ^ Thompson, Thomas L., 2001, Lexicon of Stratigraphic Nomenclature in Missouri, Missouri Department of Natural Resources, Division of Geology and Land Survey, Report of Investigation Number 73, p 267
  2. ^ McKnight, E. T. (1935). "Zinc and lead deposits of northern Arkansas" (PDF). U.S. Geological Survey Bulletin. 853: 311. Retrieved 3 June 2018.