Sedimentary > Clastic > Mudstone (Calcareous)black, gray, green, red, and yellow, variegated in part; clayey to silty; locally calcareous; commonly nonbedded.
Sedimentary > Clastic > Siltstonegray, green and red, locally variegated; clayed to sandy; thin bedded to nonbedded.
Sedimentary > Clastic > Mudstone > Shale (Calcareous)black, gray, green and red; clayey to silty; locally contains marine fossils in lower half of unit; calcareous in part.
Sedimentary > Clastic > Sandstone (Bed, Calcareous)green-gray weathers to shades of yellow-brown; mostly very fine to medium grained, locally conglomeratic; thin to massive to cross bedded; locally calcareous.
Sedimentary > Carbonate > Limestone (Bed)limestone: black, gray and green; micritic to coarse grained; thin bedded to concretionary with marine fossils common in lower half of interval; thin to medium bedded, nonmarine limestone common in upper half of unit.
Sedimentary > Coal > Bituminouscoal: thin, bituminous, impure; very locally thick enough for economic development.
Slucher, E.R., (principal compiler), Swinford, E.M., Larsen, G.E., and others, with GIS production and cartography by Powers, D.M., 2006, Bedrock geologic map of Ohio: Ohio Division of Geological Survey Map BG-1, version 6.0, scale 1:500,000.
|Counties||Athens - Belmont - Carroll - Columbiana - Coshocton - Gallia - Guernsey - Harrison - Hocking - Holmes - Jackson - Jefferson - Lawrence - Mahoning - Meigs - Monroe - Morgan - Muskingum - Noble - Perry - Stark - Tuscarawas - Vinton - Washington|