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Geologic group in Michigan and Ohio From Wikipedia, the free encyclopedia
The Detroit River Group is a geologic group in Michigan and Ohio. It preserves fossils dating back to the Devonian period.
![]() | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (August 2016) |
Detroit River Group | |
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Stratigraphic range: Devonian | |
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Type | Group |
Sub-units | Lucas Dolomite, Formosa Reef Limestone |
Underlies | Dundee Limestone and Traverse Formation |
Overlies | Holland Quarry Shale and Wabash Formation |
Location | |
Region | Indiana, Michigan and Ohio |
Country | United States |
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