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Mineral Resources > Online Spatial Data > Geology > by state > Kentucky Geology

Geologic units in Montgomery county, Kentucky

Newman Limestone (Mississippian) at surface, covers 0.2 % of this area

Newman Limestone

Lithology: limestone

Preachersville Member of Drakes Formation and Bull Fork Formation, undivided (Ordovician) at surface, covers 8 % of this area

Preachersville Member of Drakes Formation and Bull Fork Formation, undivided; in Bath and Montgomery Counties

Lithology: limestone; shale; dolostone (dolomite)

Lexington Limestone (Ordovician) at surface, covers < 0.1 % of this area

Lexington Limestone

Lithology: limestone; shale

Garrard Siltstone and Kope and Clays Ferry Formations, undivided (Ordovician) at surface, covers 18 % of this area

Garrard Siltstone and Kope and Clays Ferry Formations, undivided

Lithology: shale; limestone; siltstone

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 17 % 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

Breathitt Formation, lower part (Pennsylvanian) at surface, covers 0.8 % of this area

Breathitt Formation, lower part; lower part which includes Livingston Conglomerate Member of Lee Formation in eastern Rockcastle County

Lithology: shale; siltstone; sandstone; coal; conglomerate

Crab Orchard Formation and Brassfield Dolomite, undivided (Silurian) at surface, covers 6 % of this area

Crab Orchard Formation and Brassfield Dolomite, undivided; locally includes Bisher Dolomite in Estill County

Lithology: shale; dolostone (dolomite)

Ashlock Formation, Grant Lake and Calloway Creek Limestones, and Fairview Formation, undivided (Ordovician) at surface, covers 33 % of this area

Ashlock Formation, Grant Lake and Calloway Creek Limestones, and Fairview Formation, undivided

Lithology: limestone; shale; siltstone

New Albany, Chattanooga, and Ohio Shales, Boyle Dolomite (Limestone), and Sellersburg Limestone, undivided (Devonian to Mississippian) at surface, covers 13 % of this area

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

Lithology: black shale; dolostone (dolomite); limestone

Corbin Sandstone Member of Lee Formation (Pennsylvanian) at surface, covers 0.2 % of this area

Corbin Sandstone Member of Lee Formation

Lithology: sandstone; conglomerate

Drakes Formation (Ordovician) at surface, covers 4 % of this area

Drakes Formation

Lithology: dolostone (dolomite); shale; limestone