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  • NIOSH
    OFR-77-81 A Model For The Determination Of Flyrock Range As A Function Of Shot Conditions

    By Julius Roth

    Flyrock is the source of most of the injuries and property damage in a majority of blasting accidents in surface mines. A quantitative correlation between shot conditions and maximum flyrock range can

    Jan 1, 1979

  • NIOSH
    Program Of Research - A Summary Of Research In Progress During Fiscal Years 98 - Introduction

    By Gregory R. Wagner

    The Program of Mine Safety and Health Research described in this document reflects the continuing commitment of the Spokane and Pittsburgh Research Laboratories to focus on the most important areas wh

  • NIOSH
    IC 7550 Economic Importance of Pegmatites

    By Paul M. Tyler

    According to Lindgren , the economic importance of pegmatites stems from the fact that they represent the principal natural storehouse of two classes of mineral products : (1 ) common minerals in exce

    Feb 1, 1950

  • NIOSH
    OFR-33-84 Appraisal Of Deeper Soil Loosening Equipment For Use In Reclaiming Illinois Prime Farmland After Surface Coal Mining

    By Yoginder P. Chugh

    This study has appraised available deeper soil loosening equipment in the 1-4 ft. depth range, in the U.S. and abroad which has potential for Illinois prime farm-land reclamation. The appraisal was ba

    Jan 1, 1983

  • NIOSH
    MLA 6-89 - Mineral Resources Of The Lower Owyhee Canyon Study Area, Malheur County, Oregon

    By J. Douglas Causey

    In 1986 and 1987, at the request of the Bureau of Land Management, the U.S. Bureau of Mines studied 73,010 acres of the 76,480-acre Lower Owyhee Canyon Wilderness Study Area (OR-003-110) in order to e

    Jan 1, 1989

  • NIOSH
    RI 5901 Heats And Free Energies Of Formation Of Anhydrous Silicates ? Introduction And Summary

    By K. K. Kelley

    Thermodynamics data for silicates have applications in the fields of extractive metallurgy, ceramics, and geochemistry. To facilitate these applications, up-to-date tables of heats and free energies o

    Jan 1, 1962

  • NIOSH
    OFR-25(2)-73 Respirable Dust Control Manual For Underground Coal Mines - 1.0 Introduction

    By Jerome Apt

    This manual has been prepared fur the help and guidance of underground coal mine operators. It details both common and unique engineering methods by which the respirable dust, which is generated in co

    Jan 1, 1972

  • NIOSH
    OFR-155-83 Evaluation Of The Black River Mine Telecommunication System

    By Dana T. Updyke

    An evaluation was made of one of several improved underground communication systems sponsored by the U.S. Bureau of Mines. The system evaluated was installed in a typical metal/non-metal room and pill

    Jan 1, 1983

  • NIOSH
    MLA 146-82 - Mineral Investigations Of The Blanco Mountain Rare II Area (No. 5059), Inyo And Mono Counties, California ? Summary

    By Steven W. Schmauch

    A mineral survey by the U.S. Bureau of Mines and U.S. Geological Survey indicate the Blanco Mountain RARE II area has low potential. Lode deposits consist of small, mineralized quartz or quartz-gossan

    Jan 1, 1982

  • NIOSH
    OFR-68(1)-81 An Annotated Bibliography Of Metal And Nonmetal Mine Fire Reports - Volume I

    By Robert M. Baker

    This document details the method whereby Allen Corporation of America gathered and analyzed data and developed an annotated bibliography of metal and nonmetal mine fire reports (1950-1979). The primar

    Jan 1, 1980

  • NIOSH
    RI 7942 Improved Electrical Resistivity Field System for Shallow Earth Measurements

    By C. Melvin Lepper

    The Bureau of Mines has developed an improved earth resistivity field system which employs a novel technique for obtaining null measurements. The instrument is designed to operate reliably in high-noi

    Jan 1, 1974

  • NIOSH
    RI 3499 Combustibility Of Coke In Air - A Laboratory Method

    By R. E. Zane

    [The Northwest Experiment Station of the Bureau of lines, in cooperation with the College of Mines, University of Washington, has completed a detailed investigation of the physical and chemical proper

    Jan 1, 1940

  • NIOSH
    RI 3434 Typical Oil-Field Brine-Conditioning Systems: Preparing Brine For Subsurface Injection ? Introduction

    By Sam S. Taylor

    The disposal of oil-field brines by injection into subsurface formations other than fresh-water-bearing strata is a positive method of eliminating the harmful effects of mineralized water on fresh-wat

    Jan 1, 1939

  • NIOSH
    IC 8218 Research And Technologic Work On Explosives, Explosions, And Flames: Fiscal Year 1962 (18be8f2b-3658-47c1-8502-b22edae03b6d)

    The principle activities of the Explosives Research Laboratory from July 1, 1961 to June 30, 1962, are described briefly in part 1. Part 2 gives short abstracts of publications that appeared during

    Jan 1, 1964

  • NIOSH
    Emerging Technologies Control Respirable Dust Exposures For Continuous Mining And Roof Bolting Personnel

    By D. E. Pollock, T. W. Beck, J. A. Organiscak

    This work presents the findings from a number of NIOSH studies evaluating the impacts of emerging technologies that may reduce dust exposures for continuous mining and roof bolting personnel. These t

  • NIOSH
    OFR-63-77 Feasibility Study Of A Differential Current Ground Fault Or Leakage Current Sensor For Direct Current Offtrack Machines - 1.0 Introduction

    By Robert R. Perron

    The U.S. Bureau of Mines is engaged in many diverse programs fur improving mine safety. One area of interest to the Bureau is new and improved means for minimizing the hazards of accidental gas igniti

    Jan 1, 1976

  • NIOSH
    IC 6325 Underground Mining Practice And Costs At A Mesabi Range (Minnesota) Mine Using The Top-Slicing System ? Introduction

    By W. D. Haselton

    This paper dealing with the mining methods used in producing iron ore from an underground operation located in the central-western part of the Mesabi Range in Minnesota is one of a series being prepar

    Jan 1, 1930

  • NIOSH
    IC 6770 Manganese Its Occurrence, Milling, and MetalIurgy. Part III

    By Edmund S. Leaver, R. S. Dean, T. L. Joseph

    The metallurgy of manganese has developed along the lines of iron metal¬ lurgy. Enough high-grade ore has Been available so that by reduction with carbon it could be turned into an iron-ma.nga.nese al

    May 1, 1934

  • NIOSH
    RI 3347 The Importance Of Adequate Voltage For Distribution Systems In Coal Mines ? Introduction

    By E. J. Gleim

    The importance of "good voltage," especially for direct-current systems in coal mines, is not always fully appreciated. From the practical aspect there are three viewpoints from which low voltage may

    Jan 1, 1937

  • NIOSH
    RI 8131 Production of Blister Copper by Electric Furnace Smelting of Dead-Burned Copper Sulfide Concentrates

    By D. L. Paulson

    The Bureau of Mines is investigating pyrometallurgical and chemical methods for extracting copper from sulfide ores under conditions that provide for control of gaseous and solid emissions. Under this

    Jan 1, 1976