Geologic units in Lewis county, Missouri

Upper Devonian (Devonian) at surface, covers < 0.1 % of this area: Upper Devonian
Lithology: shale; black shale; limestone; sandstone
OSAGEAN SERIES (Phanerozoic | Paleozoic | Carboniferous Mississippian-Early [Osagean]) at surface, covers 31 % of this area: OSAGEAN SERIES - KEOKUK LIMESTONE, BURLINGTON LIMESTONE, ELSEY FORMATION, REEDS SPRING FORMATION, PIERSON LIMESTONE, FERN GLEN FORMATION
Lithology: limestone; chert; dolostone (dolomite); shale
Kinderhookian Series (Mississippian) at surface, covers < 0.1 % of this area: Kinderhookian Series
Lithology: limestone; shale; siltstone
HOLOCENE SERIES (Phanerozoic | Cenozoic | Quaternary | Holocene) at surface, covers 6 % of this area: HOLOCENE SERIES - Alluvium - clay, silt, sand, and gravel
Lithology: clay or mud; silt; sand; gravel
MERAMECIAN SERIES (Phanerozoic | Paleozoic | Carboniferous Mississippian-Late [Meramecian]) at surface, covers 63 % of this area: MERAMECIAN SERIES - ST. LOUIS LIMESTONE, SALEM FORMATION, WARSAW FORMATION
Lithology: limestone
Lower Valmeyeran (Keokuk-Sedalia) Series (Mississippian) at surface, covers < 0.1 % of this area: Lower Valmeyeran (Keokuk-Sedalia) Series
Lithology: limestone; shale
RIVERTON FORMATION, BURGNER FORMATION (Phanerozoic | Paleozoic | Carboniferous Pennsylvanian-Middle [Atokan]) at surface, covers 0.3 % of this area: RIVERTON FORMATION - shale, clay, coal. BURGNER FORMATION - limestone
Lithology: shale; siltstone; limestone; clay or mud; coal