Geologic units in Wells county, Indiana

Wabash Formation (Silurian) at surface, covers 88 % of this area: Wabash Formation - Limestone, dolomite, and argillaceous dolomite
Lithology: limestone; dolostone (dolomite)
Louisville Limestone through Brassfield Limestone (Silurian) at surface, covers 1 % of this area: Louisville Limestone through Brassfield Limestone - Sexton Creek Limestone at base in Kentland area and on cross-section
Lithology: limestone
Pleasant Mills Formation (Silurian) at surface, covers 10 % of this area: Pleasant Mills Formation - Dolomite, limestone, and argillaceous dolomite
Lithology: dolostone (dolomite); limestone