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Upper Valmeyeran (Aux Vases, Ste. Genevieve, St. Louis) Series

Upper Valmeyeran (Aux Vases, Ste. Genevieve, St. Louis) Series
State Illinois
Name Upper Valmeyeran (Aux Vases, Ste. Genevieve, St. Louis) Series
Geologic age Mississippian
Comments Upper Valmeyeran includes the following formations: Aux Vases Sandstone, Ste. Genevieve Limestone, St. Louis Limestone. Based on the stratigraphic column on the 1967 paper map, the units collectively consist of about 65% limestone, 10% dolomite, 15% sandstone, 5% breccia, 5% anhydrite (gypusm), with incidental oolitic beds
Primary rock type limestone
Secondary rock type sandstone
Other rock types dolostone (dolomite); sedimentary breccia; chert
Lithologic constituents
Major
Sedimentary > Carbonate > LimestoneUpper Valmeyeran Series includes the Aux Vases Sandstone, Ste. Genevieve Limestone, and the St. Louis Limestone. Based on the stratigraphic column on the 1967 paper map, the units collectively consist of about 65% limestone, 10% dolomite, 15% sandstone, 5% breccia, 5% anhydrite (gypusm), with incidental oolitic beds
Minor
Sedimentary > Clastic > SandstoneUpper Valmeryeran Series includes the Aux Vases Sandstone, Ste. Genevieve Limestone, and the St. Louis Limestone. Based on the stratigraphic column on the 1967 paper map, the units collectively consist of about 65% limestone, 15% sandstone, 10% dolomite, 5% breccia, 5% anhydrite (gypusm), with incidental oolitic beds
Sedimentary > Carbonate > DolostoneUpper Valmeyeran Series includes the Aux Vases Sandstone, Ste. Genevieve Limestone, and the St. Louis Limestone. Based on the stratigraphic column on the 1967 paper map, the units collectively consist of about 65% limestone, 10% dolomite, 15% sandstone, 5% breccia, 5% anhydrite (gypusm), with incidental oolitic beds
Incidental
Sedimentary > Clastic > Sedimentary-brecciaUpper Valmeryeran Series includes the Aux Vases Sandstone, Ste. Genevieve Limestone, and the St. Louis Limestone. Based on the stratigraphic column on the 1967 paper map, the units collectively consist of about 75% limestone, 15% sandstone, 5% breccia, 5% anhydrite (gypusm), with incidental oolitic beds
Sedimentary > Chemical > Evaporite > AnhydriteUpper Valmeryeran Series includes the Aux Vases Sandstone, Ste. Genevieve Limestone, and the St. Louis Limestone. Based on the stratigraphic column on the 1967 paper map, the units collectively consist of about 75% limestone, 15% sandstone, 5% breccia, 5% anhydrite (gypusm), with incidental 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.
Counties Adams - Brown - Calhoun - Cass - Fulton - Hancock - Hardin - Henderson - Jackson - Jersey - Johnson - McDonough - Madison - Mason - Massac - Monroe - Pike - Pope - Pulaski - Randolph - Saline - Schuyler - Scott - Union