Smithville Formation
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Smithville Formation | |
---|---|
Stratigraphic range: Ordovician | |
Type | Formation |
Sub-units | Black Rock Limestone Member |
Underlies | Everton Formation |
Overlies | Powell Formation |
Lithology | |
Primary | dolomite |
Location | |
Region | Arkansas |
Country | United States |
Type section | |
Named for | Smithville, Lawrence County, Arkansas[1] |
Named by | Edward Oscar Ulrich[2] |
The Smithville Formation or Smithville Dolomite is a geologic formation in Arkansas. It preserves fossils dating back to the Ordovician period.
See also
References
- ^ 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
- ^ McKnight, E. T. (1935). "Zinc and lead deposits of northern Arkansas" (PDF). U.S. Geological Survey Bulletin. 853: 311. Retrieved 3 June 2018.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.