Alluvium

unconsolidated sand, silt, clay, and gravel
State Kansas
Name Alluvium
Geologic age Holocene to Pleistocene
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Sand (Alluvial)
Unconsolidated > Fine-detrital > Clay (Alluvial)
Unconsolidated > Fine-detrital > Silt (Alluvial)
Minor
Unconsolidated > Coarse-detrital > Gravel (Alluvial)
Comments below floodplains and in stream terraces, generally between 0-100 ft. thick ,can be up to 450 ft. thick in Grant and Stanton CO.
References

Ross, Jorgina A., 1991, Geologic Map of Kansas: Kansas Geological Survey, Univ. of Kansas, Map M-23, scale 1:500,000.

Zeller, D.E., ed., 1968, The Stratigraphic Succession in Kansas, State Geological Survey of Kansas Bull. 189.

NGMDB product
Counties Allen - Anderson - Atchison - Barber - Barton - Bourbon - Brown - Butler - Chase - Chautauqua - Cherokee - Cheyenne - Clark - Clay - Cloud - Coffey - Comanche - Cowley - Crawford - Decatur - Dickinson - Doniphan - Douglas - Edwards - Elk - Ellis - Ellsworth - Finney - Ford - Franklin - Geary - Gove - Graham - Grant - Gray - Greeley - Greenwood - Hamilton - Harper - Harvey - Haskell - Hodgeman - Jackson - Jefferson - Jewell - Johnson - Kearny - Kingman - Kiowa - Labette - Lane - Leavenworth - Lincoln - Linn - Logan - Lyon - McPherson - Marion - Marshall - Meade - Miami - Mitchell - Montgomery - Morris - Morton - Nemaha - Neosho - Ness - Norton - Osage - Osborne - Ottawa - Pawnee - Phillips - Pottawatomie - Pratt - Rawlins - Reno - Republic - Rice - Riley - Rooks - Rush - Russell - Saline - Scott - Sedgwick - Seward - Shawnee - Sheridan - Sherman - Smith - Stafford - Stevens - Sumner - Thomas - Trego - Wabaunsee - Wallace - Washington - Wichita - Wilson - Woodson - Wyandotte