Rocks of Chesterian age, lower part (KYMcl;0)

State	Kentucky
Name	Rocks of Chesterian age, lower part
Geologic age	Upper Mississippian
Original map label	Mcl
Comments	in western Kentucky thickness ranges from 97-282 m; in west-central Kentucky, thickness ranges from 0-165 m
Primary rock type	limestone
Secondary rock type	sandstone
Other rock types	siltstone; shale
Lithologic constituents	Major Sedimentary > Clastic > Sandstonelithologies and lithology percentages estimated from stratigraphic column on paper source map; sandstone is estimated to be about 40% of unit Sedimentary > Carbonate > Limestonelithologies and lithology percentages estimated from stratigraphic column on paper source map; limestone is estimated to be about 40% of unit Minor Sedimentary > Clastic > Siltstonelithologies and lithology percentages estimated from stratigraphic column on paper source map; siltstone is estimated to be about 15 % of unit Incidental Sedimentary > Clastic > Mudstone > Shalelithologies and lithology percentages estimated from stratigraphic column on paper source map; shale is estimated to be about 5% of unit
Map references	Noger, M.C., compiler, 1988, Geologic map of Kentucky: sesquicenntennial edition of the Kentucky Geological Survey: U.S. Geological Survey and the Kentucky Geological Survey, scale 1:500,000.
Unit references	Noger, M.C., compiler, 1988, Geologic map of Kentucky: sesquicenntennial edition of the Kentucky Geological Survey: U.S. Geological Survey and the Kentucky Geological Survey, scale 1:500,000.
Geographic coverage	Barren - Breckinridge - Butler - Caldwell - Christian - Crittenden - Edmonson - Grayson - Green - Hardin - Hart - Larue - Livingston - Logan - Meade - Metcalfe - Ohio - Simpson - Todd - Trigg - Warren