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Bois Blanc Formation

Bois Blanc Formation
State Michigan
Name Bois Blanc Formation
Geologic age Early Devonian
Primary rock type limestone
Secondary rock type dolostone (dolomite)
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone
Minor
Sedimentary > Carbonate > Dolostone
Map references
Milstein, Randall L. (compiler), 1987, Bedrock geology of southern Michigan: Geological Survey Division, Michigan Dept. of Natural Resources, scale= 1:500,000
Unit references
Milstein, Randall L. (compiler), 1987, Bedrock geology of southern Michigan: Geological Survey Division, Michigan Dept. of Natural Resources, scale= 1:500,000
Counties Charlevoix - Cheboygan - Emmet - Mackinac