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Cyanidation of a High Gold Flotation ConcentrateBy J. A. King, D. A. Knight
"The Porgera orebody is located in mountainous terrain in Enga Province, Papua New Guinea. An underground mine has been developed which produces up to 2000 t/d of ore grading over 2 ozs Au/t. Some 79%
Jan 1, 1992
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The CTC (Certified Trading Chains) Mineral Certification System: A contribution to supply chain due diligence and good governance in the mining sector of Rwanda and the great lakes region in Central AfricaBy D. Küster, G. Franken, P. Schütte, J. Vasters
The CTC (Certified Trading Chains) mineral certification system has been piloted in Rwanda since late 2008. CTC project implementation is jointly driven by the Federal Institute for Geosciences and Na
Jan 1, 2011
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Bulletin 94 United States Mining Statutes AnnotatedBy J. W. Thompson
This work is a codification and annotation of the Congressional enactments relating to minerals, mineral lands, and mining. It covers every enactment of Congress from the original ordinance of 1785 to
Jan 1, 1915
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Ignition of sulphide dust clouds by explosivesExperimental Mine, Val d'Or, Quebec, Experiments on the ignition of sulphide dust clouds by explosives have been conducted in a 1 m3 explosion chamber. The explosives tested are ANFO, emulsion, a
Jan 1, 1993
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OFR-125-81 Infrared Imaging Borehole Probe (Infrared Borehole Imaging Probe)By E. H. Izen
A thermal imaging borehole probe was designed and fabricated for the purpose of obtaining thermal images, through smoke, of objects and people in underground mines. The effort was basically unsucc
Jan 1, 1980
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Factors Influencing Use Of Mineral Admixtures For The Past Decade In The Western US - Preprint 09-081By G. Hoffman
Sustainable development has brought social, environmental and energy efficiency concerns together with management and governance of natural resources. Cement manufacturing, an energy- and natural reso
Jan 1, 2009
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RI 8560 The Removal of Iron From Aluminum Chloride Leach Liquor by Solvent ExtractionBy Roy T. Sorensen
As part of its mission to maintain an adequate supply of minerals to meet national needs and maximize mineral production from domestic sources, the Bureau of Mines is investigating the recovery of alu
Jan 1, 1981
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Study on a Novel Polymer/Bentonite Compound Adsorbent for Removal of Cu(II) from Aqueous SolutionStudy on a Novel Polymer/Bentonite Compound Adsorbent for Removal of Cu(II) from Aqueous Solution
Sep 13, 2010
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OFR-201-82 Stronger Mine Ventilation TubingBy T. A. Raczek
Materials for stronger ventilation tubing for underground use in hardrock mines were developed. The new material composites were evaluated in performance characteristics and compared to currently used
Jan 1, 1980
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Guadarrama Tunnel Construction with Double Shield TBMsBy F. Mendaña
The characteristics of the igneous and metamorphic bedrock, extra-hard and abrasive, of the Guadarrama Tunnels, a bi-tube project of length 28.4 km without any intermediate attack, are first commented
Jan 1, 2007
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OFR-42(2)-74 Protection And Troubleshooting Of Coalmine Electrical Cables - Continuous Miner Cable Reel System Design - I IntroductionElectrical trailing cables are frequently damaged in usage, especially on continuous minors, and because of their weight and damaged condition present a safety hazard to personnel required to handle t
Jan 1, 1972
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Clinoptilolite as a Low-Cost Solution to Remove Heavy Metals from Water in Mining and Mineral Processing IndustryClinoptilolite as a Low-Cost Solution to Remove Heavy Metals from Water in Mining and Mineral Processing Industry
Sep 13, 2010
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Shortwall Stoping Versus Sub-Level Longwall Caving-Retreat In Eli Coal FiedsBy Ö. Uysal
This study deals with the presentation of the mechanized longwall mining project introduced some years ago to increase productivity and output of Aegean Lignite Establishment (ELI) owned by Turkish Co
Jan 1, 2006
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Control Of Roadway Closure In Underground Coal Mines By Sidewall Weakening TechniqueOne of the problems associated with the maintenance of roadways in underground coal mines is that of dealing with roadway closure. Sidewall weakening technique is based on the transference of the h
Jan 1, 1990
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Geology, Geochemistry and Geochronology of the Midas Epithermal Gold System, NevadaBy G B. Arehart
The Midas epithermal system is one of the larger low-sulfidation epithermal vein systems discovered in the western US in recent years, containing in excess of 3 Moz of gold (premining). The deposit is
Jan 1, 2005
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MLA 92-83 - Mineral Investigation Of The North Fork Smith Rare II Area (Nos. 5707 And 6707), Del Norte County, California; Curry And Josephine Counties, Oregon ? SummaryBy Michael M. Hamilton
U.S. Bureau of Mines personnel examined mines, prospects, and mineralized areas to determine mineral resources and resource potential in and adjacent to the North fork Smith RARE II study area. Most m
Jan 1, 1983
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The anisotropic nature of selected metamorphic rocks from GreeceBy P. Marinos, G. Tsiambaos, H. Saroglou
Anisotropy is a characteristic of intact foliated metamorphic rocks (slates, gneisses, phyllites, schists). ?esting was used to establish the anisotropic behaviour of selected gneissic rocks. The effe
Jan 1, 2003
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The Influence of the First Layer Thickness of Immediate Roof on its StabilityBy Lixun Kang
Bedded structure is the characteristics of coal measures strata. Bedding planes, coal streaks and soft rock bands existing in roof strata destroyed its continuity in the direction perpendicular to the
Jan 1, 2005
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OFR-51-84 Contamination Of Ground And Surface Waters By Uranium Mining And Milling - Contamination Of Ground And Surface Waters Due To Uranium Mining And Milling. Vol. III. Experimental Studies And Analytical Techniques.By D. D. Runnells
This study focused on the chemical reactions between uranium tailings fluids and cores of subjacent bedrock from the site of the Cotter Corporation uranium mill at Canon City, Colorado. Actual and syn
Jan 1, 1983
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Effect Of Microwave Treatment On The Flotation And Magnetic Separation Properties Of Pyrite, Chalcopyrite, Galena And SphaleriteBy N. M. Can
The effects of microwave treatment on the floatabilities and magnetic susceptibilities of some sulfide minerals, namely, pyrite, chalcopyrite, galena and sphalerite, were studied. Pure mineral samples
Jan 1, 2007