Geologic units in Shelby county, Missouri

Additional scientific data in this geographic area

Osagean Series (Early Mississippian-Osagean Series) at surface, covers 65 % of this area

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

Cherokee Group - Cabaniss Subgroup, Krebs Subgroup (Middle Pennsylvanian-Middle Series-Desmonian Stage) at surface, covers 33 % 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.

Marmaton Group (Middle Pennsylvanian-Middle Series-Desmonian Stage) at surface, covers 2 % of this area

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

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

Northview Shale, Sedalia Formation, Compton Limestone, Bachelor Formation Chouteau Group, Hannibal Shale, Horton Creek Limestone.