Geologic units in Caldwell county, Kentucky

Additional scientific data in this geographic area

Ste. Genevieve and St. Louis Limestones, undivided (Mississippian) at surface, covers 35 % of this area

Ste. Genevieve and St. Louis Limestones, undivided; includes Salem Limestone west of Christian County

Rocks of Chesterian age, upper part (Upper Mississippian) at surface, covers 20 % of this area

Rocks of Chesterian age, upper part

Rocks of Chesterian age, lower part (Upper Mississippian) at surface, covers 18 % of this area

Rocks of Chesterian age, lower part

Caseyville Formation (Lower to Middle Pennsylvanian) at surface, covers 16 % of this area

Caseyville Formation

Tradewater Formation (Middle Pennsylvanian) at surface, covers 7 % of this area

Tradewater Formation

Alluvium (Pleistocene to Holocene) at surface, covers 3 % of this area

Alluvium; includes glacial deposits along the Ohio River and its tributaries west of Cannelton locks

Tuscaloosa Formation (Upper Cretaceous) at surface, covers 0.2 % of this area

Tuscaloosa Formation