Geologic units in Platte county, Missouri

HOLOCENE SERIES (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 16 % of this area: HOLOCENE SERIES - Alluvium - clay, silt, sand, and gravel
Lithology: clay or mud; silt; sand; gravel
LANSING GROUP (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Late [Upper Missourian]) at surface, covers 46 % of this area: LANSING GROUP - cyclic deposits of limestone and shale
Lithology: shale; limestone; sandstone
SHAWNEE GROUP (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Late [Upper Virgilian]) at surface, covers 6 % of this area: SHAWNEE GROUP - cyclic deposits, limestone and shale with sandstone and siltstone.
Lithology: limestone; shale; sandstone; siltstone
KANSAS CITY GROUP (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Late [Upper Missourian]) at surface, covers 12 % of this area: KANSAS CITY GROUP - cyclic deposits, limestone and shale with minor sandstone and coal.
Lithology: limestone; shale; sandstone; coal
Alluvium (Phanerozoic | Cenozoic | Quaternary | Pleistocene Holocene) at surface, covers < 0.1 % of this area: unconsolidated sand, silt, clay, and gravel
Lithology: gravel; sand; silt; clay or mud
DOUGLAS GROUP (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Late [Upper Virgilian]) at surface, covers 19 % of this area: DOUGLAS GROUP - cyclic deposits, dominantly shale with sandstone, and limestone.
Lithology: shale; sandstone; limestone; coal