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  • AUSIMM
    Foliation Thickness and Mica Grain Size: Two New Ways to Subdivide the Otago Schist, Zew Zealand

    At a regional scale, the Otago Schist has been divided into textural zones, metamorphic zones, structural transposition zones, and terranes and lithologic associations. Each of these subdivisions reve

    Jan 1, 2001

  • SAIMM
    Evaluation of some optimum moisture and binder conditions for coal fines briquetting

    By P. Venter, N. Naude

    "Coal mining is a thriving industry and 53% of the coal mined in South Africa is used for electricity generation. Mechanization has made coal mining more efficient, but fines generation has subsequent

    Jan 1, 2015

  • SAIMM
    Review Of The Development Work On The Mintek Thermal Magnesium Process (MTMP) - Synopsis

    By M. Abdellatif

    The Mintek Thermal Magnesium Process (MTMP) process is based on DC open arc metallothermic smelting of calcined dolomite at normal pressure and temperatures of 1650?1750°C. The process was demonstrate

    Jan 1, 2011

  • NIOSH
    RI 4744 A Thermal Decomposition Study Of Colorado Oil Shale

    By Arnold B. Hubbard

    A thermal decomposition study of the kerogen in three Colorado oil shales was made at different temperatures by heating the shales in the absence of oxygen at atmospheric pressure and measuring the de

    Jan 1, 1950

  • NIOSH
    IC 8118 Thickness Of Bituminous Coal And Lignite Seams Mined In 1960 ?Summary

    By W. H. Young

    The thickness of the coal seam is one of the more important items influencing the productivity and general overall efficiency of operation of a coal mine. The average thickness of coal seams mined in

    Jan 1, 1962

  • IOM3
    Earthing practice in metalliferous mining: results of study at Mount Isa mine, Queensland, Australia

    By R. Sankey, L. Gatty, F. Bizzozero, G. F. Shannon, F. Savaglio, L. McDonald

    State mining regulations in Queensland stipulate that a mine be provided with an earth installed on surface and that all underground equipment that needs to be earthed should be connected via a copper

    May 1, 1991

  • CIM
    Minimum variance or maximum profitability?

    By R. Mohan Srivastava

    "The goal of estimation is considered in the light of decision analysis. A simple example reveals the essential elements of decision-making in the face of uncertainty. A second example shows that thes

    Jan 1, 1987

  • AUSIMM
    Minerals Policy Review Update

    To George Orwell the year of 1984 was the inspiration for a book. To most New Zealanders it was the year that the fourth Labour Government was elected to power. It was also the year that the review of

    Jan 1, 1987

  • NIOSH
    IC 6702 Mining Laws of Luxembourg

    By E. P. Youngman

    This digest, based upon a translation" of certain portions of the 1930 law, covers the pertinent points of what has been termed "The New Mining Law of Luxemburg," the Grand Ducal Order (Arrêté) of Apr

    Apr 1, 1933

  • NIOSH
    IC 6739 Milling Methods And Costs At The Golden Cycle Mill, Colorado Springs, Colo. ? Introduction

    By L. S. Harner

    This paper which describes the milling practice at the Golden Cycle mill is one of a series of similar papers being prepared by the United States Bureau of Mines. The mill of the Golden Cycle Corp

    Jan 1, 1933

  • AUSIMM
    Continuous pH and Pulp Potential Measurements During Complex Sulfide Ore Flotation

    Continuous pH and Pulp Potential Measurements During Complex Sulfide Ore Flotation

    Sep 13, 2010

  • NIOSH
    RI 7148 Beryllium Resources Of Idaho, Washington, Montana, And Oregon

    By Eldon C. Pattee

    Reconnaisance samples of reported beryllium occurrences in Idaho, Washington, Montana, and Oregon were chemically and spectroscopically tested in a mobile laboratory. The two predominant types of occu

    Jan 1, 1968

  • AIME
    Good Organization Is Making Records at the Hooper Tunnel

    By W. F. Boericke

    AT Kellogg, Idaho, J. Fred Johnson is driving the 5000.-ft Hooper Tunnel under contract for the Bunker Hill & Sullivan Mining Co. This was visited by a group of engineers during the recent meeting of

    Jan 1, 1930

  • NIOSH
    RI 8906 - Electrochemical Determination of Thermodynamic Properties of Bismuth Sesquioxide and Stannic Oxide

    By Seth C. Schaefer

    The Bureau of Mines investigated the thermodynamic properties of Bi203 (bismuth sesquioxide) and Sn02 (stannic oxide). Standard Gibbs energies of formation (AGfO) of these compounds were determined wi

    Jan 1, 1984

  • SME-ICGCM
    Stress Variation on Longwall Powered Supports in Upper Seam due to the Presence of Old Mined Out Workings in Lower Seam

    By Vedala Sastry

    Longwall mining for coal extraction in deeper deposits is gaining momentum in India, due to the increasing stripping ratios and depletion of shallow deposits amenable for surface mining. In longwall

    Jan 1, 2007

  • NIOSH
    IC 8081 Proposed Standardization Of Coal Mine Examination Records ? Introduction And Summary

    By Harry A. Schrecengost

    The Bureau of Mines has found considerable lack of uniformity in style and content of record books used for reporting the results of examinations made by coal-mine officials. These books range from el

    Jan 1, 1962

  • AUSIMM
    The Products of Boiling Hydrothermal Fluids in the Golden Cross Epithermal Deposit

    By M P. Simpson, J L. Mauk

    The Golden Cross, low-sulfidation, epithermal deposit shows a number of features that are directly or indirectly related to boiling hydrothermal fluids. Occurrences of lattice calcite and their quartz

    Jan 1, 2000

  • SAIMM
    Using Machine Carousel To Reduce Cladding Support Cycle At Pk2 Ventilation Shaft (311f8feb-63e6-4d23-980e-900e4671e984)

    By Braam Blom

    PK2 Ventilation shaft is part of Paardekraal No 2 twin shaft system that is being developed to replace depleting Merensky reef production at Paardekraal shaft complex. The sinking team at this shaft f

    Jan 1, 2009

  • AUSIMM
    Beneficiation of Syrian Iron Ore for DRI - Production - An Exploratory Study

    By Gupta R. C

    Syria has about 500 million ton deposit of minerals having 34 per cent iron content with alumina and silica as major impurities. Efforts were made to see the feasibility of concentration by four dif

    Jan 1, 1999

  • AUSIMM
    Electrowinning of Copper at High Current Densities

    The maximum current density at which conventional copper electrowinning plants will result in satisfactory, adherent, and dendrite·free cathodes is determined by the thickness of the diffusion bo

    Jan 1, 1972