Geologic units in White county, Indiana

Wabash Formation (Silurian) at surface, covers 44 % of this area

Limestone, dolomite, and argillaceous dolomite

New Albany Shale (Devonian-Mississippian) at surface, covers 30 % of this area

Black and greenish-gray shale

Borden Group (Mississippian) at surface, covers 15 % of this area

Mostly siltstone; lenses of crinodial limestone in upper part. Much cherty and silty limestone and dolomite in northwest. NP, top of New Providence Shale

Muscatatuck Group (Devonian) at surface, covers 11 % of this area

Limestone and dolomite

Raccoon Creek Group (Pennsylvanian) at surface, covers < 0.1 % of this area

Mostly shale and sandstone; also includes thin beds of limestone, clay, and coal. B, Buffaloville Coal Member; LB, Lower Block Coal Member