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Mackinac Breccia

Mackinac Breccia
State Michigan
Name Mackinac Breccia
Geologic age Early Devonian
Primary rock type limestone
Secondary rock type sedimentary breccia
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Sedimentary-breccia (Bed)
Map references
Reed, Robert C., and Daniels, Jennifer (compilers), 1987, Bedrock geology of northern Michigan: Geological Survey Division, Michigan Dept. of Natural Resources, scale= 1:500,000
Unit references
Reed, Robert C., and Daniels, Jennifer (compilers), 1987, Bedrock geology of northern Michigan: Geological Survey Division, Michigan Dept. of Natural Resources, scale= 1:500,000
Counties Mackinac