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Geologic units in Christian county, Missouri

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.

Smithville Dolomite, Powell Dolomite, Cotter Dolomite, Jefferson City Dolomite (Early Ordovician-Ibexian Series) at surface, covers 25 % of this area

Fine crystalline, silty, cherty dolomite, and oolitic chert with local sandstone beds.

Kinderhookian Series (Early Mississippian-Kinderhookian Series) at surface, covers 7 % of this area

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

Channel Sandstones (Pennsylvanian) at surface, covers 3 % of this area

Channel Sandstones