Geologic units in Barton county, Missouri

Riverton Formation, Burgner Formation (Middle Pennsylvanian-Atokan Stage) at surface, covers 50 % of this area

Shale, clay, coal. Burgner Formation - limestone.

Cherokee Group - Cabaniss Subgroup, Krebs Subgroup (Middle Pennsylvanian-Middle Series-Desmonian Stage) at surface, covers 41 % 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.

Meramecian Series (Late Mississippian-Meramecian Series) at surface, covers 7 % of this area

St. Louis Limestone, Salem Formation, Warsaw Formation.

Osagean Series (Early Mississippian-Osagean Series) at surface, covers 3 % of this area

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

Marmaton Group (Middle Pennsylvanian-Middle Series-Desmonian Stage) at surface, covers < 0.1 % of this area

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

Cherokee Group (Early Pennsylvanian- Desmoinesian) at surface, covers < 0.1 % of this area

Includes: Cabaniss FM (base CA) with Verdigris Limestone Member (base V) and Mineral coal bed (base MC), Krebs FM with Bluejacket Sandstone Member (base BJ) and Warner Sandstone Member (base WR).