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  • NIOSH
    IC 9020 Design Of Bulkheads For Controlling Water In Underground Mines

    By Gregory J. Chekan

    This Bureau of Mines report presents three methods for designing bulkheads to impound water underground: (1) thin and thick plate design; (2) South African plug design; and (3) single and double bulkh

    Jan 1, 1985

  • NIOSH
    RI 5530 Manganese Deposits Of The Olympic Peninsula, Wash. ? Introduction And Summary

    By E. A. Magill

    This report is one of a series prepared by the Bureau of Mines on manganese deposits of the Northwestern States. It describes properties on the Olympic Peninsula, Wash. Exploration by the Federal

    Jan 1, 1960

  • NIOSH
    IC 8529 Bureau Of Mines Research Programs On Recycling And Disposal Of Mineral-, Metal-, And Energy-Based Solid Wastes

    By Charles B. Kenahan

    A summary of Bureau of Mines research on utilization and disposal of solid wastes is presented, accompanied by an extensive bibliography of related publications. The Bureau's Solid Waste and Mate

    Jan 1, 1971

  • NIOSH
    RI 3704 Contrasts in Grinding Characteristics of Mineral Products

    By Glan Dale Coe, Will H. Coghill

    "INTRODUCTION Characteristics of the mineral products that are to be contrasted herein are net energy consumed in grinding to a definite top limiting size and size distribution of the ground products.

    Apr 1, 1943

  • NIOSH
    RI 2544 Lead-Zinc Separation By Volatilization

    By G. L. Oldright

    "The various districts in the United States where complex lead-zinc ores occur are too well known to require description, there being hardly a mining State with any large amount of ores of either meta

    Nov 1, 1923

  • NIOSH
    Mineral Commodity Summaries 1982 - An Up-To-Date Summary Of 86 Nonfuel Mineral Commodities - Aluminum

    I. Domestic Production and Use: In 1981, 13 companies operated 32 primary aluminum reduction plants, with 3 firms accounting for 58% of production, Washington, Oregon, and Montana accounted for 32% of

    Jan 1, 1982

  • NIOSH
    OFR-43-86 Monitoring And Control Of Mine Air Diesel Pollutants: Summary Of Michigan Technological University Research

    By J. H. Johnson

    The report references reports and publications from 1975 to the present related to diesel underground mine air quality research undertaken by Michigan Technological University. Research results obtain

    Jan 1, 1985

  • NIOSH
    RI 9533 - Field Evaluation Of Cable Bolts For Coal Mine Roof Support

    By John P. McDonnell

    Cable supports offer several advantages over traditional secondary support methods by enhancing stress redistribution to pillars and gob areas, minimizing or eliminating timbers and cribs that reduce

    Jan 1, 2010

  • NIOSH
    OFR-13-82 Engineering Property Changes And Environmental Effects On Coal Mines Wastes Due To Slaking

    Fresh coal refuse was sampled at 21 US mines. Five of the sites were drilled, sampled and tested more extensively. Field tests included Standard Penetration tests, and in-situ density determinations.

    Jan 1, 1981

  • NIOSH
    IC 7096 Open-Pit Mining And Milling Methods And Costs At The Yellow Aster Mine, Randsburg, Calif. ? Introduction

    By A. W. Frolli

    This paper, describing the open-cut mining milling, and cyaniding methods and costs at the Yellow Aster gold mine, is one of a series being prepared by the Bureau of Mines on similar practices in the

    Jan 1, 1940

  • NIOSH
    Government Actions And The Mineral Industry

    New GSP Trade Status Approved.--President Carter, by Executive Order effective March 30, has approved Generalized System of Preference treatment for imports of nonferrous metal products and other impo

    Jan 1, 1980

  • NIOSH
    IC 6437 Magnesite

    By Paul M. Tyler

    Magnesite is of importance primarily as a refractory material for lining steel furnaces , although substantial amounts are used in the production of flooring compositions and other building materials

    May 1, 1931

  • NIOSH
    OFR-17(1)-77 Conceptual Design Of An Automated Longwall Mining System Phase I - Survey Of Operating Longwalls ? 1. Introduction ? 1.1 Authorization For This Work And Its Purpose

    This report is in partial fulfillment of Contract S0241051 awarded to COMINEC on June 27, 1974. 'Me purpose of the work under this contract is to develop a conceptual design for an automated long

    Jan 1, 1975

  • NIOSH
    RI 4274 Cranberry Magnetite Deposits Avery County, N. C., And Carter County, Tenn.

    By M. H. Kline

    The Cranberry magnetite deposits occur in pre-Cambrian granite-gneiss, in a belt extending from 3 miles southeast of Cranberry, N. C., to about 6 miles southwest of Magnetic City, Tenn. The belt forms

    Jan 1, 1948

  • NIOSH
    IC 7043 Reconnaissance Of Mining Districts In Lander County, Nevada ? Introduction

    By William O. Vanderburg

    This report 3/gives the results of a reconnaissance of the mining districts in Lander County, Nev., made from March 29 to April 20 and from May 9 to May 21, 1938, during which virtually all of the min

    Jan 1, 1939

  • NIOSH
    RI 9456 - A Simple and Accurate Method for Calculating Viscosity of Gaseous Mixtures

    By Thomas A. Davidson

    The Bureau of Mines Helium Field Operations has developed a simple and accurate method for calculating the viscosity of gas mixtures. Only the composition of the mixture and the molecular weights and

    Jan 1, 2010

  • NIOSH
    RI 3493 Application Of Well-Test Data To The Study Of A Specific Gas-Production Problem ? Introduction (bb8e0ca1-fa72-4d59-a9c1-4b0f53003793)

    By M. A. Schellhardt

    In recent years development of instruments and equipment for determining subsurface pressures and temperatures in. gas and oil wells has made it feasible to obtain information that eras not available

    Jan 1, 1940

  • NIOSH
    RI 3798 Inflammability of Natural Gas: Effect of Pressure upon the Limits

    By G. W. Jones, R. E. Kennedy

    "INTRODUCTION In the manufacture, storage, transportation, and use of combustible gases and vapors, explosion hazards, which at times may be present when air becomes mixed with the gases and vapors, b

    Feb 1, 1945

  • NIOSH
    IC 6551 Milling Methods At The Questa Concentrator Of The Molybdenum Corporation Of America, Questa, N. Mex. ? Introduction

    By J. B. Carman

    This paper, describing the concentrator of the Molybdenum Corporation of America in Taos County, northern New Mexico. 7 miles east of Questa, is one of a series on milling methods being prepared for a

    Jan 1, 1932

  • NIOSH
    IC 8849 Room And Pillar Retreat Mining - A Manual For The Coal Industry

    By Peter W. Kauffman

    This Bureau of Mines publication is designed primarily to provide mine engineers and production-level mine managers with the following: 1. Information to assist them in making the decision to retr

    Jan 1, 1981