Smithville Formation
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The Smithville Formation or Smithville Dolomite is a geologic formation in Arkansas. It preserves fossils dating back to the Ordovician period.
Quick Facts Type, Sub-units ...
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] |
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