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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.
StateOhio
NameColumbus Limestone
Geologic ageDevonian
Original map labelDc
Primary rock typelimestone
Secondary rock typedolostone (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.
Geographic coverageCrawford - Delaware - Erie - Franklin - Huron - Madison - Marion - Ottawa - Pickaway - Sandusky - Seneca - Union - Wyandot

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URL: http://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=OHDc;0
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