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  • SME
    Remediating Historic Mine sites in Colorado

    By James Dunn

    “The strongest argument of the detractor (of mining)is that the fields are devastated by mining operations ...They argue that the woods and groves are cut down, for there is need of an endless amount

    Jan 1, 1999

  • SME
    Component and Object Technologies to Build the Industrial Desktop

    By Osvaldo A. Bascur

    Intelligent systems (IS) technologies have received much attention in a wide range of process engineering applications including process operations. With the revolutionary progress in information and

    Jan 1, 1997

  • SME
    Latin Mining - Goldcorp?s New Peñasquito Mill

    By Barry Olson

    The Peñasquito deposit in Mexico is one of the largest grassroots precious metal discoveries to be developed in recent years. Goldcorp Inc. acquired the gold-silver-lead-zinc property with the acqui

    Jan 1, 2009

  • SME
    Very White Commercial Grade Muscovite Mica From A New Sedimentary Source

    By D. M. Avant, S. M. Pickering

    A variety of grades of very white muscovite mica are now being produced from sedimentary sands and clays in Central Georgia. The mica is naturally concentrated near the base of the lens-shaped kaolin

    Jan 1, 2002

  • SME
    NAT Attendees Get A Glimpse Of The Future Of Underground Space Use

    In 1950, about a third of the world?s population lived in cities. That figure has steadily risen throughout the following decades. Now it is believed that about 60 percent of the estimated 8.1 billi

    Jan 1, 2008

  • SME
    Freeport-McMoRan Finds New Way To Put Waste Oil To Use

    Equipment-washing facilities at Freeport-McMo-Ran?s Sierrita Mine in Arizona produce a mixture of oil and water that was difficult to dispose of easily or cheaply. However, after some changes in the f

    Jan 1, 2009

  • SME
    Valuation And Canadian Reporting Standards - Problems And Solutions

    By R. Lawrence

    Mineral property valuations to be used for Canadian securities regulatory purposes must comply with CIMVal1. The technical basis for a CIMVal report is the same as that required for a technical repor

    Jan 1, 2011

  • SME
    Square Set Timber in Load-Haul-Dump Stopes at the Bunker Hill Mine, Kellogg, Idaho

    By John Songstead

    INTRODUCTION The Bunker Hill mine, located at Kellogg, ID, in the Coeur d'Alene mining district, has been a major pro¬ducer of lead-zinc-silver ore since 1887. Since its dis¬covery, it has produ

    Jan 1, 1982

  • SME
    Chemical And Biological Cyanide Destruction And Selenium Removal From Precious Metals Tailings Pond Water

    By K. R. Gardner, P. B. Altringer, R. H. Lien, B. E. Dinsdale

    The Bureau of Mines, U.S. Department of the Interior, is investigating chemical and biological decontamination of complex wastewaters such as tailings pond water containing 280 ppm CN and 5 ppm Se as

    Jan 1, 1990

  • SME
    Microcomputers and Mining : Geology and Exploration

    By Thomas C. Shapiro

    This is the second in a series of articles on microcomputers and applications in the minerals industry. The first article (ME, Feb., page 129) discussed microcomputer terms and concepts. This article

    Jan 3, 1984

  • SME
    The History Of Aggregate Development In The Denver, Co Area - Preprint 09-044

    By W. H. Langer

    At the start of the 20th century Denver?s population was 203,795. Most streets were unpaved. Buildings were constructed of wood frame or masonry. Transport was by horse-drawn-wagon or rail. Statewide,

    Jan 1, 2009

  • SME
    New York Subway Caverns and Crossovers—A Tale of Trials and Tribulations

    By Charles Stone, Madan Naik, Drupad Desai, Karel Rossler

    Planning of New York’s new subway line dictated the location of shallow underground station caverns and track crossovers. Clear span openings ranging from70 feet to 100 feet and lengths in excess of 1

    Jan 1, 2005

  • SME
    Implementingan Efficient Mine Planning System

    By H. Gurgenli

    Mining companies require accurate short-term mining forecasts to meet budget targets and customer needs. Challenging mining conditions along with employee turnover and lack of standard geologic modeli

    Jan 1, 2011

  • SME
    Design And Construction Of The Lafayette Bluff Tunnel

    By D. L. Petersen, C. R. Nelson, B. K. Nelson, B. D. Wagener

    The Lafayette Bluff tunnel, currently under construction for the Minnesota Department of Transportation (MnDOT), will be among the widest highway tunnels in the United States. The 199-meter tunnel is

    Jan 1, 1991

  • SME
    Design And Start Up Of The Cortez Gold Mines Pipeline Mill

    By R. N. Powell

    The Pipeline ore body was discovered in March 1991. The construction of the new mine and mill did not start until early March of 1996. Upon completion of permitting and corporate project approval, the

    Jan 1, 1999

  • SME
    Direct Fuming Of Zinc From Sulfide Ores And Concentrates

    By K. A. Foo

    Minproc Resources Inc. is developing a tailings retreatment project in Bolivia at the Colquiri zinc-tin-silver mine, in the Bolivian Andes. Mining at Colquiri has been continuous since 1940 and COMI

    Jan 1, 1992

  • SME
    Technology News – Using Satellite Technology to Find Precious Minerals

    By Beverly Cramp

    In 1995, mining engineer Alain Gachet thought about using Earth-observation satellite imagery to search for precious minerals. The latest radar Earth-observation satellite, Canada’s RADARSAT-1, had j

    Jan 1, 2003

  • SME
    Geostatistical Assessment And Quantification Of Uncertainity Of Methane In The Caved And Fractured Zone Of Longwall Mines

    By C. Özgen Karacan

    The formation of the gas emission zone in longwall mining and the potential amount of gas in this zone are factors of local geology and spatial variability within this geology. Therefore, geostatistic

    Jan 1, 2012

  • SME
    In It For The Long Haul At Canadian Oil Sands; New Haul Truck Beds Introduced

    By Josh Swank

    Albert Einstein once said, ?the important thing is not to stop questioning.? In the mining industry, a lack of inquisitiveness may lead to a blissful ignorance but it certainly will not increase effic

    Jan 1, 2013

  • SME
    The Status Of Gold And Silver Leaching Operations In The United States

    By Michael G. Pojar, Peter G. Chamberlain

    Solution mining, primarily by heap leaching, has emerged as an important method for mining gold and silver in the United States. Heap leaching offers many economic and environmental advantages over co

    Jan 1, 1981