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Genevieve Limestone (Mississippian) in the Illinois Basin: Indiana Geological survey Bulletin 48, 59.
The MGSC is led by the Illinois State Geological Survey, in conjunction with the Indiana Geological Survey and the Kentucky Geological Survey, and covers Illinois, southwestern Indiana and western Kentucky.
The Indiana Geological Survey (1997) classifies this stone as chemically pure, averaging 97% plus calcium carbonate and 1.
This review paper has benefited from the many discussions over the last eight years with Steve Brown of the Indiana Geological Survey who has provided information and maps in an efficient and unhesitating manner.
The control for subsurface data is limited to available well logs on file at the Indiana Geological Survey.