Geologic units in Carroll county, Indiana

New Albany Shale (Devonian-Mississippian) at surface, covers 17 % of this area: New Albany Shale - Black and greenish-gray shale
Lithology: black shale; shale
Muscatatuck Group (Devonian) at surface, covers 18 % of this area: Muscatatuck Group - Limestone and dolomite
Lithology: limestone; dolostone (dolomite)
Wabash Formation (Silurian) at surface, covers 65 % of this area: Wabash Formation - Limestone, dolomite, and argillaceous dolomite
Lithology: limestone; dolostone (dolomite)
Borden Group (Mississippian) at surface, covers 0.2 % of this area: Borden Group - Mostly siltstone; lenses of crinodial limestone in upper part. Much cherty and silty limestone and dolomite in northwest. NP, top of New Providence Shale
Lithology: siltstone; limestone; dolostone (dolomite); chert