Lower Chesterian (Glen Dean - Renault) Series (ILMcl;0)

State	Illinois
Name	Lower Chesterian (Glen Dean - Renault) Series
Geologic age	Mississippian
Original map label	4265
Comments	The lower Chesterian Series includes these eleven formations: Glen Dean Limestone, Hardinsburg Sandstone, Haney Limestone, Fraileys Shale, Beech Creek Limestone, Cypress Sandstone, Ridenhower Formation, Bethel Sandstone, Downeys Bluff Limestone, Yankeetown Sandstone, Renault Limestone. Collectively, based on the stratigraphic column on the 1967 paper map, the lower Chesterian is about 40% limestone, 35% shale, 25% sandstone, and incidental chert and coal and locally oolitic beds.
Primary rock type	limestone
Secondary rock type	shale
Other rock types	sandstone; coal; chert
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > ShaleThe lower Chesterian Series includes these eleven formations: Glen Dean Limestone, Hardinsburg Sandstone, Haney Limestone, Fraileys Shale, Beech Creek Limestone, Cypress Sandstone, Ridenhower Formation, Bethel Sandstone, Downeys Bluff Limestone, Yankeetown Sandstone, Renault Limestone. Collectively, based on the stratigraphic column on the 1967 paper map, the lower Chesterian is about 40% limestone, 35% shale, 25% sandstone, and incidental chert and coal and locally oolitic beds. Sedimentary > Carbonate > LimestoneThe lower Chesterian Series includes these eleven formations: Glen Dean Limestone, Hardinsburg Sandstone, Haney Limestone, Fraileys Shale, Beech Creek Limestone, Cypress Sandstone, Ridenhower Formation, Bethel Sandstone, Downeys Bluff Limestone, Yankeetown Sandstone, Renault Limestone. Collectively, based on the stratigraphic column on the 1967 paper map, the lower Chesterian is about 40% limestone, 35% shale, 25% sandstone, and incidental chert and coal and locally oolitic beds. Minor Sedimentary > Clastic > SandstoneThe lower Chesterian Series includes these eleven formations: Glen Dean Limestone, Hardinsburg Sandstone, Haney Limestone, Fraileys Shale, Beech Creek Limestone, Cypress Sandstone, Ridenhower Formation, Bethel Sandstone, Downeys Bluff Limestone, Yankeetown Sandstone, Renault Limestone. Collectively, based on the stratigraphic column on the 1967 paper map, the lower Chesterian is about 40% limestone, 35% shale, 25% sandstone, and incidental chert and coal and locally oolitic beds. Incidental Sedimentary > CoalThe lower Chesterian Series includes these eleven formations: Glen Dean Limestone, Hardinsburg Sandstone, Haney Limestone, Fraileys Shale, Beech Creek Limestone, Cypress Sandstone, Ridenhower Formation, Bethel Sandstone, Downeys Bluff Limestone, Yankeetown Sandstone, Renault Limestone. Collectively, based on the stratigraphic column on the 1967 paper map, the lower Chesterian is about 40% limestone, 35% shale, 25% sandstone, and incidental chert and coal and locally oolitic beds. Sedimentary > Chemical > ChertThe lower Chesterian Series includes these eleven formations: Glen Dean Limestone, Hardinsburg Sandstone, Haney Limestone, Fraileys Shale, Beech Creek Limestone, Cypress Sandstone, Ridenhower Formation, Bethel Sandstone, Downeys Bluff Limestone, Yankeetown Sandstone, Renault Limestone. Collectively, based on the stratigraphic column on the 1967 paper map, the lower Chesterian is about 40% limestone, 35% shale, 25% sandstone, and incidental chert and coal and locally oolitic beds.
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	Hardin - Jackson - Johnson - Madison - Massac - Monroe - Pope - Randolph - Saint Clair - Saline - Union