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Coal Demand During the 1970?s For Electrical Power Generation
By Richard L. Gordon
At almost no time since the end of World War I has the coal industry been free from serious threats to its competitive position. At present, the critical question is whether the industry can maintain
Jan 1, 1971
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Techniques for Assessing and Mitigating Longwall Subsidence Effects on Interstate Highways Mining, Metallurgy and Exploration (02f14e56-44eb-4294-94a4-02fe73f626ca)
By Yi Luo, Jian Yang, Hua Jiang
Surface subsidence induced by underground coal mining activities, especially longwall mining operations, can cause various problems to interstate highways ranging from structural integrity, drivabilit
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IC 8030 Manganese Deposits Of New Mexico ? Summary And Introduction
By Lloyd L. Farnham
This paper is one of a series describing the mineral resources of the Nation, including location, history, production, ownership, geologic setting, and mining methods for most of the known manganese d
Jan 1, 1961
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Using Transmittance Measurements to Investigate the Interdiffusion through the SnO2/CdS and CdS/CdTe interfaces in SnO2/CdS/CdTe Solar Cells
By Shadia J. Ikhmayies
The SnO2/CdS/CdTe thin film solar cells were fabricated on glass substrates by using the spray pyrolysis (SP) technique for the deposition of the SnO2 and CdS layers and vacuum evaporation for the CdT
Jan 1, 2010
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IC 7990 Manganese Deposits of Eastern Arizona
By C. W. DeLong, L. L. Farnham, L. A. Stewart
This paper is one of a series covering mineral resources of the Nation . It describes briefly most of the known manganese deposits of eastern Arizona , which for the purpose of this report includes th
Jan 1, 1961
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Effects of Solidification Rate and Alloy Composition on the Cast Microstructure of Aluminum Alloy 5182
By P. N. Anyalebechi
The effects of solidification rate (0.4-26.1 K/s) and alloying elements on the cast microstructures of aluminum alloy 5182 have been investigated with directionally cooled laboratory-size ingots. The
Jan 1, 2010
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Recovery of Platinum Group Minerals from Grinding Circuits: A Protocol for Prediction
By N. Mejia, Z. Xiao, D. Fragomini, A. R. Laplante
"The adaptation to platinum-group minerals (PGMs) of a protocol developed to predict gold recovery by gravity is presented. The protocol is based on three different data sets: ore characterization of
Jan 1, 2004
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RI 6115 Thermal Expansion Of Magnesium Oxide: An Interlaboratory Study
By William J. Campbell
Evaluation by the Bureau of Mines of published expansion values for magnesium oxide shows significant variation in values, which may be attributed to sample variables, experimental errors, or systemat
Jan 1, 1962
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Optimization Of A Grinding And Classification Circuit Of A Magnetite Ore Processing Plant Through Computer Simulation
By J. A. Delgadillo
Computer simulation and mineral modeling was applied to the optimization of a grinding circuit in a plant processing 256 t/h magnetite. These tools were used to develop a grinding and classification c
Jan 1, 2008
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Low-Rank Coal Ash Characterization- Washability And Utilization Implications – Preprint 97-132
By P. D. Rao, D. E. Walsh
Chemical and physical properties of typical low-rank coal (LRC) ash are significantly different than bituminous coal ash. With the exception of extraneous ash, which is incorporated during mining or i
Feb 24, 1997
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Soil Improvement by Blasting Part II
By Wade A. Narin, James K. Mitchell
Hydroblasting is considered a distinct soil improvement technique from explosive compaction, though the blast designs for the two techniques are similar. Hydroblasting is a three step process develope
Jan 1, 1995
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Prospección, exploración y desarrollo del yacimiento de Cuajone
By Oscar Concha
El presente texto describe la exploración, geología, controles estructurales, mineralización y los tipos de alteración hidrotermal del yacimiento minero Cuajone, situado al sur de la Cordillera Occide
Apr 26, 1999
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Minor Metals And Minerals - Arsenic
By Arnold M. Lansche
DOMESTIC OUTPUT of white arsenic, As2O3, was derived entirely as a byproduct of smelting arsenic-containing copper ores by The Anaconda Company at Anaconda, Mont., and American Smelting and Refining C
Jan 1, 1965
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Geometallurgy - What do you Really Need to Know from Exploration through to Production?
By K Ehrig
You are a geologist, geometallurgist, or metallurgist/process engineer and are fortunate enough to work for an organisation who asks you to design/execute a geometallurgy program. What seems like a si
Jul 15, 2013
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OFR-26(2)-83 Inflow To Horizontal Drains In Tailings Embankments
Tailings embankments can develop a high phreatic surface if the original design for the embankment does not include drainage facilities or if existing drainage facilities become ineffective. Subsequen
Jan 1, 1982
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Geotechnical Considerations In The Design Of The MOCB Mining Method At Konkola No. 3 Shaft
Konkola No 3 shaft experienced severe mining-induced stress and time-related deterioration in ground conditions in an area where an over-cut and bench (OCB) mining method was used to extract a shallow
Jan 1, 2005
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OFR-8-95 Mineral Investigations In The Colville Mining District And Southern National Petroleum Reserve In Alaska
By Joseph M. Kurtak
The U.S Bureau of Mines conducted a five-year mineral resource assessment of the 16.6 million acre Colville Mining District in northern Alaska, which includes part of the National Petroleum Reserve in
Jan 1, 2011
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OFR-111(1)-77 Automatic Fire Protection System For Mobile Underground Metal Mining Equipment - Final Report I Volume I
By Gene R. Reid
The contract objective is the development and in mine testing of an Automatic Fire Control System (AFCS) for mobile underground metal mining equipment. The effort described by this report covers the p
Jan 1, 1976
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The San Martin project: design and operating experience in the development of a 12,000 tpd gold heap leach mine in Central America
By Paul Hosford, Tim Haldane
"The paper describes the fast-track development of the project from feasibility study through to detailed design and construction, highlighting the process adaptations for handling sticky ore and wate
Jan 1, 2002
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Mining for Space Why now?
By Michel Doyon
Canadian Context: Exploration ??Space Exploration is within the unique mandate of the Canadian Space Agency ??Global partnerships ??Maintain close relationship with our partners ??New knowledge
May 1, 2009