Geologic units in Doniphan county, Kansas

Loess (Holocene to Pleistocene) at surface, covers 57 % of this area

eolian silts

Drift (Pleistocene) at surface, covers 14 % of this area

sand, silt, clay, and some gravel

Alluvium (Holocene to Pleistocene) at surface, covers 13 % of this area

unconsolidated sand, silt, clay, and gravel

Shawnee Group (Late Pennsylvanian- Virgilian) at surface, covers 13 % of this area

Includes: Topeka Limestone, Calhoun Shale, Deer Creek Limestone (base DC), Tecumseh Shale, Lecompton Limestone (base LC), Kanwaka Shale, Oread Limestone with Plattsmouth Limestone Member (base PL).

Douglas Group (Late Pennsylvanian- Virgilian) at surface, covers 2 % of this area

Lawrence FM (base LA)- mostly gray shale and sandstone with minor red shale, coal, gray limestone and conglomerate, thickness ranges from 140ft to 250 ft. Stranger FM- five members containing sandstone, shale, and minor limestone, coal and conglomerate ranging from 100 ft. to 180 ft. thickness.

Holocene series (Quaternary-Holocene Series) at surface, covers 0.7 % of this area

Alluvium - clay, silt, sand, and gravel.

Wabaunsee Group (Late Pennsylvanian- Virgilian) at surface, covers 0.3 % of this area

Includes: Wood Siding FM, Root Shale, Stotler Limestone (base ST), Pillsbury Shale, Zeandale Limestone (base Z), Willard Shale, Emporia Limestone (base E), Auburn Shale, Bern Limestone (base BR), Scranton Shale, Howard Limestone (base H), and Severy Shale.

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