Middle Valmeyeran (Salem, Warsaw, Borden, Springville; includes thin Mvl and Mk in south and east) Series (ILMvm;0)

State	Illinois
Name	Middle Valmeyeran (Salem, Warsaw, Borden, Springville; includes thin Mvl and Mk in south and east) Series
Geologic age	Mississippian
Original map label	5175
Comments	The Middle Valmeyeran Series includes these formations in various parts of the state: Salem Limestone, Sonora Sandstone, Warsaw Limestone, Ullin Limestone, Fort Payne Formation, Borden Siltstone-Springville Shale. Taken as a group, based on the stratigraphic column on the 1967 paper map this part of the series consists of about 60% limestone and 40% siltstone-shale. The limestone is cherty in places.
Primary rock type	limestone
Secondary rock type	siltstone
Other rock types	shale
Lithologic constituents	Major Sedimentary > Clastic > Mixed-clastic > Siltstone-mudstoneThe middle Valmeyeran Series includes these formations in various parts of the state: Salem Limestone, Sonora Sandstone, Warsaw Limestone, Ullin Limestone, Fort Payne Formation, Borden Siltstone-Springville Shale. Taken as a group, based on the stratigraphic column on the 1967 paper map, this part of the series consists of about 60% limestone and 40% siltstone-shale. The limestone is cherty in places. Sedimentary > Carbonate > LimestoneThe middle Valmeyeran Series includes these formations in various parts of the state: Salem Limestone, Sonora Sandstone, Warsaw Limestone, Ullin Limestone, Fort Payne Formation, Borden Siltstone-Springville Shale. Taken as a group, based on the stratigraphic column on the 1967 paper map, this part of the series consists of about 60% limestone and 40% siltstone-shale. The limestone is cherty in places.
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 - Alexander - Brown - Calhoun - Cass - Champaign - Douglas - Ford - Fulton - Greene - Hancock - Hardin - Henderson - Iroquois - Jersey - McDonough - Madison - Mason - Monroe - Morgan - Pike - Pulaski - Randolph - Saint Clair - Saline - Schuyler - Scott - Union - Vermilion