Lower Valmeyeran (Keokuk-Sedalia) Series (ILMvl;0)

State	Illinois
Name	Lower Valmeyeran (Keokuk-Sedalia) Series
Geologic age	Mississippian
Original map label	5255
Comments	This part of the series includes the following formations: Keokuk Limestone, Burlington Limestone, Fern Glen Limestone, Sedalia Limestone. Collectively these units are about 95% limestone, some cherty limestone and incidental shale
Primary rock type	limestone
Secondary rock type	shale
Other rock types
Lithologic constituents	Major Sedimentary > Carbonate > LimestoneThis part of the series includes the following formations: Keokuk Limestone, Burlington Limestone, Fern Glen Limestone, Sedalia Limestone. Based on the stratigraphic column on the 1967 paper map, collectively these units are about 95% limestone, some cherty limestone and incidental shale Incidental Sedimentary > Clastic > Mudstone > ShaleThis part of the series includes the following formations: Keokuk Limestone, Burlington Limestone, Fern Glen Limestone, Sedalia Limestone. Based on the stratigraphic column on the 1967 paper map, collectively these units are about 95% limestone, some cherty limestone and incidental shale
Map references	Willman, H.B., and others, (compilers), 1967, Geologic Map of Illinois: Illinois State Geological Survey, scale= 1:500,000, paper.
Unit references	Willman, H.B., and others, (compilers), 1967, Geologic Map of Illinois: Illinois State Geological Survey, scale= 1:500,000, paper.
Geographic coverage	Adams - Brown - Calhoun - Cass - Champaign - Cook - Fulton - Greene - Hancock - Henderson - Iroquois - Jersey - Knox - McDonough - Madison - Mason - Monroe - Morgan - Pike - Randolph - Schuyler - Scott - Vermilion - Warren