Geologic units in Worth county, Missouri

Lansing Group (Late Pennsylvanian-Upper Series-Missourian Stage) at surface, covers 45 % of this area

Cyclic deposits of limestone and shale.

Douglas Group (Late Pennsylvanian-Upper Series-Virgilian Stage) at surface, covers 21 % of this area

Cyclic deposits, dominantly shale with sandstone, and limestone.

Kansas City Group (Late Pennsylvanian-Upper Series-Missourian Stage) at surface, covers 18 % of this area

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

Shawnee Group (Late Pennsylvanian-Upper Series-Virgilian Stage) at surface, covers 16 % of this area

Cyclic deposits, limestone and shale with sandstone and siltstone.

Shawnee Group (Upper Pennsylvanian, lower-middle Virgilian) at surface, covers < 0.1 % of this area

Interval includes Oread, Kanwaka, Lecompton, Tecumseh, Deer Creek, Calhoun, Topeka formations. Primary Lithologies: limestone, fossiliferous, part coated grain/Osagia; shale/mudstone, light to dark gray. Secondary Lithologies: pedogenic mudstone, part calcareous/nodular; siltstone to very fine sandstone; black shale, phosphatic. Minor: chert; coal, coaly shale; red-brown mudstone. Maximum thicknesses 190-220 ft (58-67 m).

Douglas Group (Upper Pennsylvanian, upper Missourian-lower Virgilian) at surface, covers < 0.1 % of this area

Interval includes Stranger, Cass, Lawrence formations. Primary Lithologies: shale and mudstone, light to dark gray, part silt laminated. Secondary Lithologies: limestone, fossiliferous, part coated grain; siltstone to very fine sandstone; pedogenic mudstone, part red-brown, part calcareous/nodular. Minor: coal, carbonaceous shale; black shale. Maximum thicknesses 90-135 ft (27-41 m).