Geologic units in Johnson county, Missouri

Marmaton Group (Middle Pennsylvanian-Middle Series-Desmonian Stage) at surface, covers 49 % of this area

Cyclic deposits, shale and limestone with sandstone, clay and several coal beds, some workable.

Cherokee Group - Cabaniss Subgroup, Krebs Subgroup (Middle Pennsylvanian-Middle Series-Desmonian Stage) at surface, covers 39 % of this area

Cabaniss Subgroup - cyclic deposits, shale, sandstone, clay and several workable coal beds. Krebs Subgroup - cyclic deposits, sandstone, siltstone, shale, clay and some workable coal beds.

Weldon River-Warrensburg-Moberly Channel Sandstone (Late Pennsylvanian-Upper Series-Missourian Stage) at surface, covers 7 % of this area

Weldon River-Warrensburg-Moberly Channel Sandstone.

Pleasanton Group (Late Pennsylvanian-Upper Series-Missourian Stage) at surface, covers 3 % of this area

Dominantly shale and sandstone with minor coal.

Kansas City Group (Late Pennsylvanian-Upper Series-Missourian Stage) at surface, covers 2 % of this area

Cyclic deposits, limestone and shale with minor sandstone and coal.

Riverton Formation, Burgner Formation (Middle Pennsylvanian-Atokan Stage) at surface, covers 0.6 % of this area

Shale, clay, coal. Burgner Formation - limestone.

Osagean Series (Early Mississippian-Osagean Series) at surface, covers < 0.1 % of this area

Keokuk Limestone, Burlington Limestone, Elsey Formation, Reeds Spring Formation, Pierson Limestone, Fern Glen Formation.