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RI 7550 Noise In Underground Coal Mines
By J. A. Lamonica
The Bureau of Mines conducted an environmental noise survey to determine the noise levels to which underground coal mine employees are exposed, to evaluate noise survey techniques and equipment, and t
Jan 1, 1971
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OFR-10-75 Electromagnetic Noise In Robena No. 4 Coal Mine
Two different techniques were used to make measurements of the absolute value of electromagnetic noise in an operating coal mine, Robena No.4, located near Waynesburg, Pennsylvania. One technique meas
Jan 1, 1974
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IC 8398 Helium: Bibliography Of Technical And Scientific Literature, 1962 - Including Papers On Alpha-Particles
By Philip C. Tully
This bibliography contains 2,072 citations to technical and scientific literature about helium and alpha-particles abstracted by 12 abstract service publications during 1962. Citations are listed by 1
Jan 1, 1969
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RI 3176 National Safety Competition of 1931
By W. W. Adams
"The seventh National Safety Competition, that for 1931, conducted by the United States Bureau of Mines, was participated in by 350 mines and quarries operating in 34 States. Tables 1 to 5 show the re
Jun 1, 1932
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IC 9087 Chromium-Chromite: Bureau Of Mines Assessment And Research - Proceedings Of Bureau Of Mines Briefing Held At Oregon State University, Corvallis, OR, June 4-5, 1985
This briefing was sponsored by the Bureau of Mines to summarize ongoing and recently completed chromium-chromite research and resource assessment activities by the Bureau. Through the series of 18 pre
Jan 1, 1986
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OFR-89-92 Investigation Of Microbially Induced Permeability Loss During In-Situ Leaching
By Corale L. Brierley
Accumulations of microorganisms in the in-situ leaching environment are believed responsible for plugging of the orebody and thus decreasing uranium extraction. To assess the contribution of microbial
Jan 1, 1982
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IC 7001 Review Of Literature On Conditioning Air For Advancement Of Health And Safety In Mines ? Introduction
By D. Harrington
This circular presents part I of a series of papers of a review of the literature on air conditioning in mines, with particular reference to the health, safety, and efficiency of miners. It deals with
Jan 1, 1938
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OFR-143-84 Development Of Commercial Quiet Rock Drills
By Piyush K. Dutta
This report describes the design, development and manufacture of production stoper drills and results of their field tests, it is shown that underground stoper drill noise level can be reduced from 11
Jan 1, 1983
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OFR-103-84 Investigation Of The Interaction Between Acid Mine Water And Concentrator Wastes
By F. E. Diebold
The wastewater-treatment system of the Anaconda Mining Co., at its Butte, MT., operation has been physically and chemically characterize modeled on a computer and investigated with respect to alternat
Jan 1, 1982
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IC 8471 Technology And Use Of Lignite - Proceedings: Bureau Of Mines University Of North Dakota Symposium, Grand Forks, N. Dak., May 1-2, 1969 ? Introduction
The 1969 Lignite Symposium was held at Grand Forks, N. Dak., on May 1-2, 1969. Cosponsored by the University of North Dakota and the Department of the Interior, Bureau of Mines, the meeting was the fi
Jan 1, 1970
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RI 9433 - Rock Mechanics Investigations at the Lucky Friday Mine (In Three Parts)
By M. P. Board, J. K. Whyatt, T. J. Williams
The U.S. Bureau of Mines has been conducting a series of rock mechanics investigations at the Lucky Friday Mime in the Coeur d'Alene Mining District of northern Idaho. In the present study, the e
Jan 1, 1992
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IC 8047 Methods In Driving The 5490 Railroad Tunnel, Kennecott Copper Corp., Salt Lake County, Utah ? Summary And Introduction
By V. T. Dow
This report describes construction details and methods used in driving the 5490 tunnel at the Kennecott Copper Corp, property, Bingham, Utah. The tunnel will provide railroad access to the world-famou
Jan 1, 1962
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IC 6394 Milling Methods At The Hurley Plant Of The Nevada Consolidated Copper Co., Hurley, New Mexico ? Introduction
By Fred Hodges
This paper describing the concentrator practice of the Hurley Plant of the Nevada Consolidated Copper Co. at Hurley, N. Mex., is one of a series of papers on milling methods and costs being prepared b
Jan 1, 1931
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OFR-57-74 Characteristics Of Attached Radon-222 Daughters Under Both Laboratory And Field Conditions With Particular Emphasis Upon Underground Uranium Mine Environments 211B01191 ? Summary ? Objective
By J. A. Cooper
The objectives of this research were to define the chemical composition and physical characteristics of the aerosols associated with attached radon daughters in operating uranium mines, and to investi
Jan 1, 2012
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Measuring Mining Safety With Injury Statistics: Lost Workdays As Indicators Of Risk
By Patrick J. Coleman, John C. Kerkering
Problem: Mining in the United States remains one of the most hazardous industries, despite significant reductions in fatal injury rates over the last century. Coal mine fatality rates, for example, ha
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IC 6343 Milling Methods And Costs At The Concentrator Of The United Verde Copper Co., Clarkdale, Ariz. ? Introduction
By C. R. Kuzell
This paper, describing the concentrator practice of the United Verde Copper Co., is one of a series being prepared by the Bureau of HISTORY The United Verde concentrator was constructed in accor
Jan 1, 1930
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RI 5952 Computing Ore Reserves By The Polygonal Method Using A Medium-Size Digital Computer ? Summary And Introduction
By Richard F. Hewlett
Engineers at the Bureau of Mines Denver Mining Research Center have been a research program investigating the theory and application of mine sampling. Part of this program is an investigation of the e
Jan 1, 1962
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The Mineral Industry of Central American Countries - Belize (70a31eee-b78d-48df-8e2e-42d4c4893447)
Mining activity during 1977 was limited to the production of limestone, marl, and sand and gravel, all of which were used domestically. Public works projects consumed the major portion of the construc
Jan 1, 1981
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Coal-Mine Accidents In The United States 1942 - Introduction
By W. W. Adams
With production of coal per man-hour of work highest in history, the coal mines of the United States established a lower accident-frequency4 rate in 1942 than in any year since 1930, the first for whi
Jan 1, 1944
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RI 8489 Recycling Spent Chrome Refractories From Steelmaking Furnaces
In Bureau of Mines research on recycling chrome refractory wastes, used refractories from argon-oxygen decarburization and electric steelmaking furnaces were beneficiated, concentrates were reformed i
Jan 1, 1980