Geologic units in Lyon county, Kentucky

Additional scientific data in this geographic area

Ste. Genevieve and St. Louis Limestones, undivided (Mississippian) at surface, covers 60 % of this area

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

Tuscaloosa Formation (Upper Cretaceous) at surface, covers 15 % of this area

Tuscaloosa Formation

Continental deposits, undifferentiated (Tertiary to Quaternary) at surface, covers 9 % of this area

Continental deposits, undifferentiated; East of the Tennessee River

Warsaw Limestone (Mississippian) at surface, covers 8 % of this area

Warsaw Limestone; west of Christian County

Alluvium (Pleistocene to Holocene) at surface, covers 5 % of this area

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

Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided (Mississippian) at surface, covers 3 % of this area

Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided