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  • SME
    Case Study of Longwall Mining in Mine No. 95, Consolidation Coal Co.

    By Warder A. Shaver

    INTRODUCTION Mine No. 95 of the Consolidation Coal Co., a divi¬sion of Continental Oil Co., is located in Shinnston, WV. Mine No. 95 was opened in January 1967 and has been operating continuously sin

    Jan 1, 1982

  • AIME
    Institute of Metals Division - Microstructure of Iron-Sulfur Alloys

    By Lawrence H. Van Vlack, Alfred S. Keh

    The distribution of sulfur in iron was found to be dependent upon the time and temperature of the treatment as well as the chemical composition of the sulfide. With higher temperatures, the sulfide ph

    Jan 1, 1957

  • CIM
    Mucking efficiency in open pit blasting

    By J. J. Montoro

    The influence of blasting on the excavators’ efficiency, defined as mucking rate (amount of rock mucked per unit time) and mean bucket load (amount of rock loaded in each bucket operation), is investi

    Jan 1, 2007

  • NIOSH
    OFR-47-75 Evaluation Of Mining Constraints To The Revitalization Of Pennsylvania Anthracite

    The objective of this research was to evaluate the technical and economic constraints on the extraction and utilization of anthracite coal and to determine the research and development needed in order

    Jan 1, 1975

  • CIM
    Man-Less Underground Mining ? Hurdles on the way to Make Dreams Come True

    By Jacek Paraszczak

    For mining companies facing strong international competition and unfavorable commodities? prices, automation of underground operations has got a potential to increase productivity and help cut cost. H

    May 1, 2001

  • AUSIMM
    Cr-Ni-PGE in the Mafic-Ultramafic Enclaves Around Arsikere- Tavarkere Lineament, Karnataka

    By R K. W Merkle, S Madoom Hussain, T Yellappa

    Cr-Ni-Cu¦PGE deposits are known to occur in early Archaean mafic-ultramafic rocks. Early Archaean mafic-ultramafic (MUMF) rocks occur in the western Dharwar craton and range in size from small pods to

    Jan 1, 2008

  • AIME
    Reservoir Engineering- Laboratory Research - Effect of Cleavage Rate and Stress Level on Apparent Surface Energies of Rocks

    By W. W. Krech, T. E. Perkins

    As fractures are propagated through rocks, energy is absorbed near the extending crack tip. Apparent surface energies for several rocks have been measured by cleavage under dynamic con-ditions. At nom

    Jan 1, 1967

  • NIOSH
    IC 8320 Urbanization And Its Impact On The Mineral Aggregate Industry In The Denver, Colo., Area

    By Matthew J. Sheridan

    The Bureau of Mines study described in this report was conducted in the Denver, Colo., area (1) to summarize existing conservation practices as related to the most beneficial utilization of deposits o

    Jan 1, 1967

  • NIOSH
    Surface-Water Seepage Into Anthracite Mines In The Lackawanna Basin Northern Field - Anthracite Region Of Pennsylvania ? Summary

    By S. H. Ash

    THE MAGNITUDE of the anthracite industry's drainage problem in the Lackawanna River drainage area is realized when it is known that in 1948 the 27 pumping plants in this region pumped over 48 bil

    Jan 1, 1952

  • AIME
    The Precious Metals

    By Arthur Mackwell

    The role of the precious metals is changing rapidly. They are becoming primarily materials of modern industry, and their decorative and monetary functions are diminishing in relative importance. Certa

    Jan 1, 1976

  • NIOSH
    The Mineral Industry Of Central American Countries - Belize (e4ac0736-be33-4679-86af-34e8f8add6fa)

    By H. Robert Ensminger

    The Belizean economy registered a modest real growth of 1.3% during 1981. The gross domestic product (GDP), based on current prim was $121 million' with an inflation-rate of 10%. The country rece

    Jan 1, 1983

  • NIOSH
    IC 6924 Bureau Of Mines Activities In The Field Of Building Materials - Building Materials Of Mineral Origin

    The Bureau of Mines is operated to assist in promoting economic development through increased efficiency in the mining, preparation, treatment, and utilization of mineral substances; to aid in conserv

    Jan 1, 1937

  • AUSIMM
    New Technologies for efficient utilization of coal in the iron and steel industry

    By Brotzmann K, Turner RE, Philp DK, Rusden RC

    New approaches in the last decade have led to the supplemental use of raw coal as a direct energy source in several iron and steelmaking processes. The dependence on more expensive coke and electr

    Jan 1, 1986

  • SME
    Mine Evaluation and Investment Analysis

    By Donald W. Gentry

    This section deals with one of the most fascinating aspects of mining the evaluation of mine investment opportunities. Be-fore proceeding further, it is important to clarify the meaning of some fundam

    Jan 1, 2008

  • SME
    Subsurface Disposal Of Mine Water ? Introduction

    By Robert Stefanko

    The concept of disposing of liquid industrial wastes by deep-well injection is not a new one. Brines associated with crude oil long have been disposed of in this manner, with the additional benefit of

    Jan 1, 1969

  • NIOSH
    Improving Safety At Small Underground Mines - Proceedings: Bureau Of Mines Technology Transfer Seminar

    By Robert H. Peters

    This U.S. Bureau of Mines report identifies the types of serious accidents that occur most frequently at small underground coal mines and describes the strategies that could help prevent these acciden

    Jan 1, 1994

  • AUSIMM
    Classification and Development in Grade Control Blasting for Surface Mines

    By T N. Little

    The grade control process undertaken at mines aims to maximise the value of the ore (valuable product) mined and fed downstream for processing or sale. The full range of grade control activities inclu

    Aug 24, 2015

  • SAIMM
    Net Present Value Maximization Model For Optimum Cut-Off Grade Policy Of Open Pit Mining Operations ? Synopsis

    The optimum cut-off grade policy maximizes the net present value (NPV) of an open pit mining operation subject to the mining, processing, and refining capacity constraints. The traditional approaches

    Jan 1, 2011

  • NIOSH
    OFR-110(1)-76 Review And Evaluation Of Current Training Programs Found In Various Mining Environments; Volume I, Summary

    By J. Adkins

    This document presents a description of the results of a project aimed at producing a broad description of current mining training programs and an evaluation of their effectiveness with respect to red

    Jan 1, 1976

  • NIOSH
    Helium: Bibliography Of Technical And Scientific Literature From Its Discovery (1868) To January 1, 1947 - Introduction

    By Henry P. Wheeler

    H ELIUM (chemical symbol: He) is a member of a family of normally gaseous elements, which, because of their zero valence and corresponding lack of chemical activity, are called the "noble" or "inert"

    Jan 1, 1952