The Crab Orchard Formation is a geologic formation in Kentucky, United States. It dates back to the Telychian to Aeronian stages of the Silurian period.[1]

Crab Orchard Formation
Stratigraphic range: Telychian-Aeronian
440–435 Ma
TypeFormation
UnderliesBisher Formation
OverliesBrassfield Formation
Location
RegionKentucky
Country United States

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Further reading

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