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Put-in-Bay Dolomite | |
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Stratigraphic range: Silurian | |
Type | Formation |
Unit of | Bass Islands Group |
Underlies | Raisin River Dolomite |
Overlies | St. Ignace Dolomite |
Location | |
Region | ![]() |
Country | ![]() |
The Put-in-Bay Dolomite is a geologic formation in Michigan and Ohio. It preserves fossils dating back to the Silurian period. The type locality is South Bass Island in western Lake Erie.