Geologic units in Posey county, Indiana

Additional scientific data in this geographic area

Patoka and Shelburn Formations (Pennsylvanian) at surface, covers 56 % of this area

Mostly shale and sandstone; also includes thin beds of limestone and coal. WF, top of West Franklin member

Bond Formation (Pennsylvanian) at surface, covers 40 % of this area

Mostly shale and sandstone; also includes thin beds of limestone and coal

Mattoon Formation (Pennsylvanian) at surface, covers 3 % of this area

Mostly shale and sandstone; also includes thin beds of coal

Shelburn-Patoka Formations undivided (Pennsylvanian (Kasimovian)) at surface, covers 0.6 % of this area

Shelburn-Patoka Formations undivided.

Bond Formation (Pennsylvanian (Kasimovian)) at surface, covers 0.4 % of this area

Bond Formation

Alluvium (Pleistocene to Holocene) at surface, covers < 0.1 % of this area

Alluvium; includes glacial deposits along the Ohio River and its tributaries west of Cannelton locks