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Geologic units in Adair county, Kentucky

Limestone bodies in the Fort Payne Formation (Mississippian) at surface, covers 36 % of this area

Limestone bodies in the Fort Payne Formation; including Cane Valley Limestone Member

Lithology: limestone

Salem, Warsaw, and Harrodsburg Limestones, undivided (Mississippian) at surface, covers 33 % of this area

Salem, Warsaw, and Harrodsburg Limestones, undivided

Knifely Sandstone member of the Fort Payne Formation (Mississippian) at surface, covers 9 % of this area

Knifely Sandstone member of the Fort Payne Formation

Lithology: sandstone

Alluvium (Pleistocene to Holocene) at surface, covers 8 % of this area

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

Lithology: sand; silt; glacial drift

Ste. Genevieve and St. Louis Limestones, undivided (Mississippian) at surface, covers 5 % of this area

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

Wildie, Nada, Halls Gap, Holtsclaw Siltstone, Cowbell, Nancy, Kenwood Siltstone, New Providence Shale, Sunbury Shale, Berea Sandstone, and Bedford Shale, undivided; Borden Formation locally includes Renfro Member in eastern Kentucky (Devonian to Mississippian) at surface, covers 4 % of this area

Wildie, Nada, Halls Gap, Holtsclaw Siltstone, Cowbell, Nancy, Kenwood Siltstone, New Providence Shale, Sunbury Shale, Berea Sandstone, and Bedford Shale, undivided; Borden Formation locally includes Renfro Member in eastern Kentucky

Lithology: shale; siltstone; sandstone

New Albany, Chattanooga, and Ohio Shales, Boyle Dolomite (Limestone), and Sellersburg Limestone, undivided (Devonian to Mississippian) at surface, covers 2 % of this area

New Albany, Chattanooga, and Ohio Shales, Boyle Dolomite (Limestone), and Sellersburg Limestone, undivided

Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided (Mississippian) at surface, covers 0.5 % of this area

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

Cumberland Formation and Leipers and Catheys (?) Limestones, undivided (Ordovician) at surface, covers < 0.1 % of this area

Cumberland Formation and Leipers and Catheys (?) Limestones, undivided; in southernmost Kentucky