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

Geologic units in Oldham county, Kentucky

Drakes Formation (Ordovician) at surface, covers 45 % of this area

Drakes Formation

Lithology: dolostone (dolomite); shale; limestone

Dillsboro Formation (Ordovician) at surface, covers < 0.1 % of this area

Dillsboro Formation - Skeletal limestone and calcareous shale

Lithology: limestone; shale

Laurel Dolomite, Osgood Formation, and Brassfield Dolomite, undivided (Silurian) at surface, covers 25 % of this area

Laurel Dolomite, Osgood Formation, and Brassfield Dolomite, undivided

Lithology: dolostone (dolomite); shale

Glacial deposits, undifferentiated (Pleistocene to Holocene) at surface, covers 1.0 % of this area

Glacial deposits, undifferentiated; shown locally

Lithology: glacial drift

Louisville Limestone and Waldron Shale, undivided (Silurian) at surface, covers 15 % of this area

Louisville Limestone and Waldron Shale, undivided

Lithology: limestone; shale; dolostone (dolomite)

Sellersburg and Jeffersonville Limestones, undivided (Lower to Middle Devonian) at surface, covers 6 % of this area

Sellersburg and Jeffersonville Limestones, undivided; in Jefferson and Oldham Counties

Lithology: limestone

Alluvium (Pleistocene to Holocene) at surface, covers 0.4 % of this area

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

Lithology: sand; silt; glacial drift

Bull Fork Formation (Ordovician) at surface, covers 2 % of this area

Bull Fork Formation

Lithology: limestone; shale

Whitewater Formation (Ordovician) at surface, covers < 0.1 % of this area

Whitewater Formation - Skeletal limestone and calcareous shale; dolomitic mudstone (S, Saluda Member) at base

Lithology: limestone; shale; mudstone

Bull Fork Formation and Grant Lake and Calloway Creek Limestones, undivided (Ordovician) at surface, covers 5 % of this area

Bull Fork Formation and Grant Lake and Calloway Creek Limestones, undivided; Along Ohio River in Oldham and Trimble Counties

Lithology: limestone; shale