Manganese Investigations - Metallurgical Division: 14. Hydrometallurgical Studies of Manganses Ores (open access)

Manganese Investigations - Metallurgical Division: 14. Hydrometallurgical Studies of Manganses Ores

Report issued by the U.S. Bureau of Mines regarding laboratory tests conducted on acid leaching of manganese ore. Descriptions of the methods used in testing and results are presented. This report contains tables, and graphs.
Date: July 1942
Creator: Anderson, Clarence Travis
System: The UNT Digital Library
Investigation of Copper-Nickel Mineralization in Kawishiwi River Area, Lake County, Minnesota (open access)

Investigation of Copper-Nickel Mineralization in Kawishiwi River Area, Lake County, Minnesota

Report issued by the Bureau of Mines over studies conducted on the copper-nickel deposits of Lake County, Minnesota. As stated in the introduction, "this report describes the procedures and results of the drilling program as well as the metallurgical work and laboratory studies" (p. 1). This report includes tables, maps, and illustrations.
Date: November 1955
Creator: Grosh, W. A.; Pennington, J. W.; Wasson, P. A. & Cooke, S. R. B.
System: The UNT Digital Library
Evaluating Cuyuna Manganese Resources by Sulfatizing (open access)

Evaluating Cuyuna Manganese Resources by Sulfatizing

Report issued by the Bureau of Mines over evaluations of manganese deposits. The results of the evaluations are listed. This report includes tables, maps, and illustrations.
Date: 1961
Creator: Prasky, Charles; Marovelli, Robert Lawrence & Joyce, Floyd E., Jr.
System: The UNT Digital Library
Magnetic Base Stations in Lake Superior Iron Districts (open access)

Magnetic Base Stations in Lake Superior Iron Districts

Report issued by the U.S. Bureau of Mines on the magnetic base stations located in Minnesota, Michigan, and Wisconsin. The report evaluates the usefulness of the stations for calibration of certain instruments. This report contains tables, graphs, maps, and illustrations.
Date: September 1951
Creator: Bath, Gordon D.
System: The UNT Digital Library