Geologic units in Jefferson county, Indiana

Louisville Limestone through Brassfield Limestone (Silurian) at surface, covers 27 % of this area

Sexton Creek Limestone at base in Kentland area and on cross-section

Muscatatuck Group (Devonian) at surface, covers 27 % of this area

Limestone and dolomite

Dillsboro Formation (Ordovician) at surface, covers 18 % of this area

Skeletal limestone and calcareous shale

New Albany Shale (Devonian-Mississippian) at surface, covers 18 % of this area

Black and greenish-gray shale

Whitewater Formation (Ordovician) at surface, covers 8 % of this area

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

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

Shale and thin skeletal limestone