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Columbus Limestone

Columbus Limestone - Limestone and dolomite; gray to brown, weathers brown; massive bedding; upper 2/3 fossiliferous, gray limestone, lower 1/3 brown dolomite; 0 to 105 feet thick.
State Ohio
Name Columbus Limestone
Geologic age Devonian
Primary rock type limestone
Secondary rock type dolostone (dolomite)
Other rock types
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)gray to brown, weathers brown; massive bedding; upper 2/3 fossiliferous, gray limestone; 0 to 105 feet thick.
Minor
Sedimentary > Carbonate > Dolostone (Bed)lower 1/3 brown dolomite
Map references
Digital Ohio map from CD produced as a result of a contract between the U.S. Geological Survey and the Ohio Geological Survey. Released with permission of the Ohio Geological Survey, June 2005.
Unit references
Digital Ohio map from CD produced as a result of a contract between the U.S. Geological Survey and the Ohio Geological Survey. Released with permission of the Ohio Geological Survey, June 2005.
File of unit descriptions received from Ohio Geological Survey.
Counties Crawford - Delaware - Erie - Franklin - Huron - Madison - Marion - Ottawa - Pickaway - Sandusky - Seneca - Union