Tradewater Formation (KYPAt;0)

State	Kentucky
Name	Tradewater Formation
Geologic age	Middle Pennsylvanian
Original map label	PAt
Comments	in western Kentucky, thickness is 175-190 m
Primary rock type	siltstone
Secondary rock type	sandstone
Other rock types	limestone; coal
Lithologic constituents	Major Sedimentary > Clastic > Siltstonelithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 70% siltstone, 30 % sandstone, and incidental limestone and coal. Minor Sedimentary > Clastic > Sandstonelithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 70% siltstone, 30 % sandstone, and incidental limestone and coal. Incidental Sedimentary > Coallithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 70% siltstone, 30 % sandstone, and incidental limestone and coal. Sedimentary > Carbonate > Limestonelithologies and lithology percentages estimated from stratigraphic column on paper source map; collectively these units are about 70% siltstone, 30 % sandstone, and incidental limestone and coal.
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	Breckinridge - Butler - Caldwell - Christian - Crittenden - Daviess - Grayson - Hancock - Hopkins - McLean - Muhlenberg - Ohio - Union - Webster