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Geologic units in Shawnee county, Kansas

Shawnee Group (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Late [Virgilian]) at surface, covers 11 % 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).
Lithology: limestone; shale; sandstone
Admire Group (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Late) at surface, covers 3 % of this area
Includes: Grenola Limestone, Roca Shale, Red Eagle Limestone (base RE), Johnson Shale, Foraker Limestone (base FO), Janesville Shale with Five Point Limestone Member (base FP), Falls City Limestone, and Onaga Shale.
Lithology: shale; limestone; coal
Alluvium (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers 21 % of this area
unconsolidated sand, silt, clay, and gravel
Lithology: gravel; sand; silt; clay or mud
Douglas Group (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Late [Virgilian]) at surface, covers 0.5 % 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.
Lithology: shale; sandstone; coal; limestone; conglomerate
Drift (Phanerozoic | Cenozoic | Quaternary | Pleistocene) at surface, covers 26 % of this area
sand, silt, clay, and some gravel
Lithology: sand; silt; clay or mud; gravel
Wabaunsee Group (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Late [Virgilian]) at surface, covers 37 % 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.
Lithology: shale; sandstone; limestone

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