Geologic units in Holt county, Missouri

Shawnee Group (Late Pennsylvanian-Upper Series-Virgilian Stage) at surface, covers 42 % of this area

Cyclic deposits, limestone and shale with sandstone and siltstone.

Holocene series (Quaternary-Holocene Series) at surface, covers 41 % of this area

Alluvium - clay, silt, sand, and gravel.

Wabaunsee Group (Late Pennsylvanian-Upper Series-Virgilian Stage) at surface, covers 17 % of this area

Cyclic deposits, principally shale, sitlstone, sandstone with thin limestone beds and minor coal.

Wabaunsee Group (Late Pennsylvanian - Virgilian) at surface, covers < 0.1 % of this area

Shale, sandstone, and interbedded limestone. Shale is light gray to dark gray, greenish gray, red, or black; contains very thin layers of siltstone; locally very fossiliferous, carbonaceous. Sandstone is brownish gray to yellowish gray, or gray, argillaceous , and micaceous. Limestone is dark gray to medium gray, yellowish gray, thin bedded to thick bedded; very fossiliferous. Contains coal beds less than 1 ft. thick. Approx. max thickness 300 ft

Douglas Group (Late Pennsylvanian-Upper Series-Virgilian Stage) at surface, covers < 0.1 % of this area

Cyclic deposits, dominantly shale with sandstone, and limestone.