Geologic units in Perry county, Indiana

Additional scientific data in this geographic area

Raccoon Creek Group (Pennsylvanian) at surface, covers 43 % 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

Buffalo Wallow Group (Mississippian) at surface, covers 42 % of this area

Mostly shale and sandstone; also includes thin beds of micritic limestone. L, Leopold Limestone member

Stephensport Group (Mississippian) at surface, covers 11 % of this area

Sandstone, micritic and skeletal limestone, and shale

West Baden Group (Mississippian) at surface, covers 5 % of this area

Shale, sandstone, and micritic and skeletal limestone

Rocks of Chesterian age, upper part (Upper Mississippian) at surface, covers < 0.1 % of this area

Rocks of Chesterian age, upper part

Blue River Group (Mississippian) at surface, covers < 0.1 % of this area

Mostly micritic, skeletal, and oolitic limestone