Ste. Genevieve Limestone | |
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Stratigraphic range: Mississippian Sub-period | |
![]() Ste. Genevieve Limestone, lining Sidesaddle Pit (Black Snake Avenue, Mammoth Cave, Kentucky) | |
Type | Geological formation |
Unit of | Blue River Group |
Sub-units | Fredonia Member |
Underlies | Aux Vases Sandstone and Paoli Limestone |
Overlies | St. Louis Limestone[1] |
Thickness | up to 85 feet (26 m)[2] |
Lithology | |
Primary | Limestone |
Other | Sandstone, chert[2] |
Location | |
Region | Missouri, Kentucky, Illinois, Indiana |
Country | United States |
Type section | |
Named for | Ste. Genevieve, Missouri[1] |
Named by | Shumard |
Year defined | 1859 |
The Ste. Genevieve Limestone is a geologic formation named for Ste. Genevieve, Missouri where it is exposed and was first described. It is a thick-bedded limestone that overlies the St. Louis Limestone. Both are Mississippian in age. The St. Louis Limestone is Meramecian and the Ste. Genevieve is the base of the Chesterian series.[1]
It is a primary producer in the Illinois Basin and has produced commercial oil and gas in Warren County, Kentucky.[citation needed]