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Tradewater Formation

Tradewater Formation
State Kentucky
Name Tradewater Formation
Geologic age Middle Pennsylvanian
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 > 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.
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.
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.
Counties Breckinridge - Butler - Caldwell - Christian - Crittenden - Daviess - Grayson - Hancock - Hopkins - McLean - Muhlenberg - Ohio - Union - Webster