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  • SME
    Overview of current U.S. longwall gateroad support practices: An update

    By I. B. Tulu, M. M. Sears

    In 2015, 40 longwall mines provided nearly 60 percent of U.S. underground coal production. During this time, about 80 percent of ground-fall-related fatalities occurred in areas where the mine roof wa

  • SME
    Annual Review 2015 Mining Review

    By J. A. Ober

    "In 2015, the estimated value of nonfuel mineral production in the United States decreased by 3 percent from that in 2014 (Table 1), mainly as a result of decreased metal and metallic mineral prices,

    May 1, 2016

  • SME
    Results Of The U.S. Bureau Of Mines Investigation Of The Mineral Resources Of The Silver Peak Range North Wilderness Study Area, Esmeralda County, Nevada

    By T. J. Close

    On September 10, 1991, Secretary of the Department of Interior Manuel Lujan deleted the Silver Peak Range North Wilderness Study Area from the list of U.S. Bureau of Land Management lands in Nevada to

    Jan 1, 1993

  • SME
    The United States? Role With The International Tunnelling Association

    By Harvey Parker

    The International Tunnelling and Under-ground Space Association (ITA) is a nonprofit organization that represents all aspects of the tunneling and underground space industry worldwide. The United Sta

    Jan 1, 2007

  • SME
    Analysis Of The Mining Engineering Faculty Pipeline

    By M. M. Poulton

    Universities are not immune from the large number of retirements facing the mining industry. Department heads anticipate that we will need to replace all of the senior mining engineering faculty in t

    Jan 1, 2012

  • SME
    Method For Dynamically Balancing Water In A 50-M-High U-Tube Coal Air-Lift Hydrohoist

    By R. E. Miller

    Hoisting coal using water and air is a technology which has potential to improve the economics and safety of transporting coal. The Coal Air-Lift Hydrohoist is a prototype coal hoisting system develop

    Jan 1, 1995

  • SME
    Pegmatite Deposits In The Black Hills Of South Dakota

    By A. I. Johnson

    The pegmatites of the Black Hills of South Dakota are the coarse-grained differentiates of the Harney Peak Granite. The Harney Peak Granite was intruded into the Pre-cambrian schist and quartzites and

    Jan 1, 1978

  • SME
    Industrial Minerals 2004 - Diatomite

    By A. Founie

    The United States continues to be the world’s leading producer and consumer of diatomite. Production of diatomite in the United States during 2004 was estimated to be 635 kt (700,000 st). This was a

    Jan 1, 2005

  • SME
    Trends In Minerals Exploration Activity

    By Phillip Crowson

    The annual surveys of corporate exploration expenditures carried out by Metals Economics Group (MEG) show that estimated total spending rose to a record $13.2 billion in 2008 ($14.4 billion including

    Jan 1, 2009

  • SME
    Modeling For Real-Time Performance Measurement: A Strategic Approach

    By Russell Barr, Robert E. Cook

    As most mining companies are taking advantage of the high market prices for base metals such as steel, copper and zinc, numerous challenges still face them. While demand is strong from countries like

    Jan 1, 2007

  • SME
    Uranium Supply And Demand Worldwide Review ? Introduction

    By Michael Davis

    In the fairly recent past, with a history of cheap and abundant energy, it has been possible to predict with reasonable confidence that world energy demand would continue to double about every 15 year

    Jan 1, 1974

  • SME
    The Coal Quality Impact Model, On-Line Analysis And Linear Programming For SO2 Compliance Optimal Utility Fuel Planning In The Competitive 1990's

    By C. K. Blankenship

    The competitive forces now driving the electric utility industry and the constraints of regulation at all levels are changing the way we will all do business now and into the next century. Utilities a

    Jan 1, 1995

  • SME
    Recent Applications Of Groundwater Models To Mining And Engineering Problems

    By F. W. Bond

    Predictive ground-water modeling is currently being applied to a wide range of engineering applications. In recent years models have been used to evaluate the effect of large ground-water withdrawals

    Jan 1, 1980

  • SME
    Annual Review 2002 – The United States 2002

    By P. A. Plunkert, D. E. Morse, L. McCartan, S. F. Sibley

    Following the recession of 2001, restrained consumer spending, declines in domestic manufacturing and industrial output, and increased unemployment led to a lack-luster year in the domestic economy.

    Jan 1, 2003

  • SME
    Using Statistical Quality Control For Productivity Improvement

    By J. E. Feddock

    To succeed in today's competitive coal market, coal companies must continuously improve production and lower cost. However, the coal industry's historical management practices must change to

    Jan 1, 1993

  • SME
    The Historical Development of Coal Flotation in the United States

    By Frank F. Aplan

    Froth flotation has been used to improve the recovery of fine coal, for minimizing the sulfur and ash content of clean coal and for the removal of fine coal from recycled or discharged backwater from

    Jan 1, 1999

  • SME
    Westrans Project - The Alternative

    By M. A. Greenwood

    The total value of coal, FOB mine, consumed in the United States was $21 billion in 1985. Roughly $6 billion was spent to transport coal from the mine to the consumer by rail. This indicates the impac

    Jan 1, 1986

  • SME
    Uranium Resources In New Mexico

    By V. McLemore

    New Mexico ranks 2nd in uranium reserves in the U. S., which amounts to 15 million tons ore at 0.277% U3O8 (84 million lbs U3O8) at $30/lb (EIA, 2006). The most important deposit in the state is sands

    Jan 1, 2007

  • SME
    The Role Of The Japanese Trading Company In Setting World Coal Prices

    By Peter J. Szabo

    In 1980, a caravan of representatives of Japanese trading companies debarked on the shores of the United States bearing gifts of watches, electronic games, and radios. In early 1983, we find in a park

    Jan 1, 1984

  • SME
    Recycled Road Aggregates ? Introduction

    By Charles R. Marek

    There is an ever-increasing need for quality construction materials to provide the necessary housing and transportation facilities required for the protection and movement of people and goods. By the

    Jan 1, 1974