Geology of the Michigan Basin with Reference to Subsurface Disposal of Radioactive Wastes (open access)

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.
Date: July 1960
Creator: de Witt, Wallace, Jr.
System: The UNT Digital Library
Mining Methods and Costs at Crystal-Victory and Minerva Number 1 Fluorspar Mines of Minerva Oil Company, Hardin County, Illinois (open access)

Mining Methods and Costs at Crystal-Victory and Minerva Number 1 Fluorspar Mines of Minerva Oil Company, Hardin County, Illinois

Report issued by the U.S. Bureau of Mines discussing mining costs and methods of fluorspar mines in Hardin County, Illinois. As stated in the summary, "it describes the exploration, development, and mining practices, giving costs of each. Transportation, equipment, power, labor, and other influencing factors also are discussed" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date: 1960
Creator: Montgomery, Gill; Daly, J. J. & Myslinski, Frank J.
System: The UNT Digital Library