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Radioactivity of Some Coals and Shales in Southern Illinois
Report discussing the radioactivity of channel samples of the commercially important coal beds in the Caseyville, Tradewater, Carbondale, and McLeansboro formations of Pennsylvanian age, as well as samples of the black, hard, sheety, roof shales of several coal beds in southern and central Illinois.
Trace Elements Reconnaissance in Indiana, Illinois, Missouri, Arkansas, and Kentucky
Report discussing examination of various trace elements by the U.S. Geological Survey in Indiana, Illinois, Missouri, Arkansas, and Kentucky during October and November, 1946.
Geology of the Michigan Basin with Reference to Subsurface Disposal of Radioactive Wastes
From introduction: The purpose of this report is to describe the geology of the rocks in the different sedimentary basins in relation to problems of disposal of liquid radioactive wastes in the ground.