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Geologic units in Adair county, Kentucky

Alluvium (Pleistocene to Holocene) at surface, covers 4 % of this area
Alluvium; includes glacial deposits along the Ohio River and its tributaries west of Cannelton locks
Lithology: sand; silt; glacial drift
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
Lithology: limestone; dolostone (dolomite); shale
Salem, Warsaw, and Harrodsburg Limestones, undivided (Mississippian) at surface, covers 15 % of this area
Salem, Warsaw, and Harrodsburg Limestones, undivided
Lithology: limestone; fine-grained mixed clastic; dolostone (dolomite)
Ste. Genevieve and St. Louis Limestones, undivided (Mississippian) at surface, covers 2 % of this area
Ste. Genevieve and St. Louis Limestones, undivided; includes Salem Limestone west of Christian County
Lithology: limestone; dolostone (dolomite); chert; sandstone
Knifely Sandstone member of the Fort Payne Formation (Mississippian) at surface, covers 4 % of this area
Knifely Sandstone member of the Fort Payne Formation
Lithology: sandstone
New Albany, Chattanooga, and Ohio Shales, Boyle Dolomite (Limestone), and Sellersburg Limestone, undivided (Devonian to Mississippian) at surface, covers 0.9 % of this area
New Albany, Chattanooga, and Ohio Shales, Boyle Dolomite (Limestone), and Sellersburg Limestone, undivided
Lithology: black shale; dolostone (dolomite); limestone
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 2 % 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
Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided (Mississippian) at surface, covers 0.2 % of this area
Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided
Lithology: limestone; dolostone (dolomite); shale; sandstone
Limestone bodies in the Fort Payne Formation (Mississippian) at surface, covers 16 % of this area
Limestone bodies in the Fort Payne Formation; including Cane Valley Limestone Member
Lithology: limestone

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