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RI 5980 Use Of Radioactive Tracers In Beryllium Extractive Metallurgy Research ? Introduction And Summary
By A. M. Poston
Introduction of radioactive elements into ore samples and/or pregnant liquors and radiometric tracing thereof have greatly improved control of fusion and extraction studies on beryllium ores and produ
Jan 1, 1962
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OFR-138(2)-84 The Development Of Guidelines For Closing Underground Mines: Colorado Districts
By Donald James Butler
Problems resulting from underground mines in three inactive mining districts in Colorado were investigated. The purpose was to determine how these problems could be reduced or eliminated in new closin
Jan 1, 1983
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OFR-122(2)-78 Advancing Oil Shale Mining Technology: Program Evaluation - Time-Cost-Risk Analysis
By G. F. Kuncir
The time-cost-risk analysis described herein was performed as part of an evaluation of the Advancing Oil Shale Mining Technology Program performed by The Aerospace Corporation. The objectives of this
Jan 1, 1977
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OFR-24(4)-84 Mining And Rock Mechanics Research In Oil Shale And Nahcolite, Horse Draw Shaft, Colorado - Appendix Volume A-2 Core Hole 1840-UG-3 Data
During the period 1979 thru 1982, Multi Mineral Corporation conducted a mining research program at the United States Department of the Interior's Bureau of Mines Oil Shale Mining Environmental Re
Jan 1, 1983
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RI 3432 Primary Crushing. Summary Of Field Tests ? Introduction (b8f3fc6f-bf75-4fea-9288-c267958470ae)
By Mark Sheppard
The technical literature on the general subject of crushing contains many references to the work of investigators on the laws governing, and the factors entering into, the economical production of fin
Jan 1, 1939
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OFR-83B-92 Hoisting System Components - Selection And Guidelines - Volume 2
The objective of this study was two-fold: 1. To perform a world literature search pertinent to the analysis, selection and design of hoisting systems and their components and to codify the search i
Jan 1, 1988
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RI 3432 Primary Crushing. Summary Of Field Tests - Introduction
By Mark Sheppard
The technical literature on the general subject of crushing contains many references to the work of investigators on the laws governing, and the factors entering into, the economical production of fin
Jan 1, 1939
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RI 7998 Noise Abatement of Pneumatic Rock Drill (ac407062-ef2d-418c-b19c-fdbdbeb2b63a)
By C. R. Summers
In response to the Coal Mine Health and Safety Act of 1969, mandatory noise standards have been developed that specify time-noise limits of mine personnel exposure. Most affected by elevated noise lev
Jan 1, 1974
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OFR-9-73 Accident Analysis By Functional Classification For Bituminous Coal Mines In 4-Foot To 8-Foot Seam Heights - Section I ? Introduction - A. Background
By R. J. Traube
The purpose of the Inherently Safe Mining System (ISMS) project is to develop continuous and conventional coal mining equipment and systems which will reduce the incidence of fatal and nonfatal accide
Jan 1, 1972
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IC 9220 The Talc Industry - An Overview
By Robert L. Virta
This U.S. Bureau of Mines paper discusses the structure of the talc industry, talc production, processing of talc ore, applications and demand for talc, and the outlook for the talc industry.
Jan 1, 1989
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RI 8743 Coal Cutting Mechanics and Noise Generation
By Roy C. Bartholomae
This Bureau of Mines report presents the results of a laboratory investigation of coal cutting mechanics and noise. These experiments were performed using linear cutting apparatus that operates over a
Jan 1, 1983
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MLA 23-85 - Mineral Resources Of The Carrizo Gorge Wilderness Study Area (BLM No. CA-060-025), San Diego County, California
By David A. Lipton
In 1983, U.S. Bureau of Mines personnel examined mines, prospects, and mineralized areas to determine the mineral resources in the Carrizo Gorge Wilderness Study Area (WSA). The 14,571-acre WSA, locat
Jan 1, 1985
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OFR-42-83 In Situ Shear Strength Of Rock In Open Pit Benches (Development Of Equipment And Field Procedures)
By M. K. McCarter
Previous investigations suggest the possibility of determining shear strength of geologic materials by measuring the force necessary to rupture the web between two closely-spaced, parallel holes using
Jan 1, 1982
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OFR-167-81 Pre-Mining Identification Of Hazards Associated With Coal Mine Roof Measures
By Ronald W. Stingelin
The geology of the roof of the Pittsburgh coal bed was studied and mapped in nine contiguous counties containing the bulk of the remaining reserves of this coal bed in the northern Appalachian Coal Ba
Jan 1, 1979
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MLA 78-86 - Mineral Resources Of The Eighteen Mile Study Area, Lemhi County, Idaho ? Summary
By Andrew M. Leszcykowski
In 1985, at the request of the Bureau of Land Management, personnel from the U.S. Bureau of Mines examined 18,700 acres of the 24,922-acre Eighteen Mile Wilderness Study Area to evaluate mineral resou
Jan 1, 1986
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OFR-33-82 Environmental Instrumentation In Mining Air And Water
By Richard C. Moore
The U.S. Bureau of Mines contracted a study to review the air and water monitoring requirements of five Federal environmental acts (the Federal Water Pollution Control Act, the Safe Drinking Water Act
Jan 1, 1981
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RI 3466 Oxidation Of Carbon Monoxide And Hydrogen By Bacteria ? Introduction (39742325-6549-42a1-935d-aaaee710a01e)
By G. W. Jones
During the course of an investigation by the Bureau of Mines into the causes, behavior, and control of anthracite-mine fires, it was observed that the carbon monoxide disappeared from a sealed fire ar
Jan 1, 1939
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RI 5934 Production Of Molybdenum Metal By Magnesium Reduction Of Molybdenum Oxides ? Summary
By T. T. Campbell
This investigation was undertaken by the Bureau of Mines to determine if high-purity ductile molybdenum of uniform quality can be prepared by bomb reduction techniques. Molybdenum trioxide (Mo03) a
Jan 1, 1962
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RI 3187 Protection Against Mercury Vapor Afforded By Canister Gas Masks ? Introduction
By W. P. Yant
Canister-type gas masks Pave become an essential part of the equipment of many industries, not only for use in .emergencies, but also in performing normal operations of industrial processes and proced
Jan 1, 1932
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OFR-51-82 Technology For Environmental Noise Control In Surface Mines
By Michael A. Staiano
The objective of this study was to determine the magnitude and sources of environmental noise from mining operations near populated areas, to de-scribe monitoring techniques, and to identify applicabl
Jan 1, 1981