The Future of Birmingham Red Iron Ore, Jefferson County, Alabama (open access)

The Future of Birmingham Red Iron Ore, Jefferson County, Alabama

Report issued by the U.S. Bureau of Mines regarding the restudy of iron-ore reserves in the Birmingham area to determine where increased production may be obtained in the area if and when required. The report includes tables, graphs, pictures and a map.
Date: July 1953
Creator: Thoenen, J. R.; Reed, Avery H., Jr. & Clemmons, B. H.
System: The UNT Digital Library
Use of Subaudible Noises for the Prediction of Rock Bursts (open access)

Use of Subaudible Noises for the Prediction of Rock Bursts

Report issued by the U.S. Bureau of Mines on testing of sub-audible noises and accuracy of rock burst predictions. The history of this study, and the results of these investigations are presented. This report includes tables, graphs, illustrations, and diagrams.
Date: July 1942
Creator: Obert, Leonard & Duvall, Wilbur
System: The UNT Digital Library