Crab Orchard Formation

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Crab Orchard Formation
Stratigraphic range: Telychian-Aeronian
440–435  Ma
O
S
D
C
P
T
J
K
Pg
N
Type Formation
Underlies Bisher Formation
Overlies Brassfield Formation
Location
Region Kentucky
Country United States

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]

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Further reading