Geologic units in Neosho county, Kansas

Kansas City Group (Middle Pennsylvanian- Missourian) at surface, covers 66 % of this area

Includes: Lane Shale,Wyandotte Limestone (base WY), Liberty Memorial Shale, Iola Limestone (base I), Chanute Shale (base CH), Dewey Limestone, Nellie Bly FM, Cherryvale FM, Dennis Limestone (base DN), Galeburg Shale, Mound Valley Limestone, Ladore Shale, Swope Limestone (base SW), Elm Branch Shale, Hertha Limestone.

Alluvium (Holocene to Pleistocene) at surface, covers 16 % of this area

unconsolidated sand, silt, clay, and gravel

Marmaton Group (Early Pennsylvanian- Desmoinesian) at surface, covers 12 % of this area

Includes: Lost Branch FM, Memorial Shale, Lenapah Limestone (base LE), Nowata Shale, Altamont Limestone (base PA), Bandera Shale, Pawnee Limestone (base PA), Labette Shale and Fort Scott Limestone.

Pleasanton Group (Middle Pennsylvanian- Missourian) at surface, covers 6 % of this area

Includes: Shale Hill FM (base SH), and Hepler FM. Chiefly gray to very dark gray or yellowish gray shale with sandstone members and some limestone and coal.

Lansing Group (Middle Pennsylvanian- Missourian) at surface, covers 0.8 % of this area

Stanton Limestone- three limestone and two shales members, ranges from 15 to 130 ft. thick. Vilas Shale- sandy, carbonaceous gray shale with some sandstone and limestone locally, ranges from 5 to 120 ft. thick. Plattsburg Limestone- two limestone members seperated by shale, ranging from 25 to 115 ft. thick.

Alluvium (Tertiary) at surface, covers < 0.1 % of this area

largely chert gravel