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  • SME
    Hydrothermal Silicification and Alteration of Breccias from Lucky Strike and Menez Gwen hydrothermal fields (Mid-Atlantic Ridge, Azores)

    By I. A. Costa, Y. Fouquet, F. Barriga

    "Lucky Strike and Menez Gwen are two hydrothermally active sites located along the border of the Azorean plateau, southwest of the Azores islands where the alteration processes affecting basaltic rock

    Sep 1, 2014

  • SME
    Long Distance Conveyor Control ? Introduction

    By Charles LeMoyne

    The Cable belt Company has been building single flight conveyors for a number of years. The simple design concepts of this type conveyor, introduced over thirty years ago, when distances of one to two

    Jan 1, 1983

  • SME
    New Test Methodology For Estimating The Abrasiveness Of Soils For TBM Tunneling

    By F. Dahl, P. Raleigh, J. Holzhauser, B. Nilsen

    Tunnel excavation using tunnel boring machines (TBMs), has become increasingly common in recent years, despite the fact that precise evaluation of certain risks have not kept pace with the use of thes

    Jan 1, 2007

  • SME
    Industrial Minerals 2007

    Editor?s note: Each year, the June issue of Mining Engineering features an industrial minerals review. Several people put in a fair amount of time in developing the material for this issue. Thank y

    Jan 1, 2008

  • SME
    Eskay Creek Mine and Mill – A Continuing Success

    By Garry Biles

    The Eskay Creek Mine is a high-grade gold and silver underground mine in northwestern British Columbia. The mine started operations in late1994. For the first three years, ore was crushed to -50 mm(-

    Jan 1, 2000

  • SME
    Preventive Maintenance Policy Supported By A Quality Control Chart And Kolmogorov-Smirnov Tests: Emet Colemanite Mineral Processing Plant, Turkey

    By S. Yerel

    In a mineral processing plant, the determination of a preventive maintenance schedule is one of the most important maintenance policies. In this study, to determine the preventive maintenance schedule

    Jan 1, 2007

  • SME
    Fitness-For-Purpose: Should You Buy One Grinding Mill For The Price Of Two?

    By P. Ulrich, V. Svalbonas

    The early to mid 1980s was a period of mining consolidation, and many senior design engineers retired from the mill industry. Similar conditions have existed in the last few years. This creates a lo

    Jan 1, 2001

  • SME
    Roof Monitoring Helps Prevent Injuries in Stone Mines

    By A. T. Iannacchione

    From 1990 to 1996, 16 states reported 92 injuries from falls of roof, rib or face in the more than 90 underground stone mines in the United States (Fig.1). Missouri, Pennsylvania and Kentucky account

    Jan 1, 2000

  • SME
    Tectonic Stress Reconstruction Based on Structural Features in Tectonic Superposition Areas Mining, Metallurgy and Exploration (db46774a-751c-4994-a9c0-cdb544845a1e)

    By Chen Lin

    Tectonic stress is an important parameter for understanding the dynamics of underground engineering and for the exploitation of coalbed methane. Multiple-period structural features usually have comple

  • SME
    Tectonic Stress Reconstruction Based on Structural Features in Tectonic Superposition Areas Mining, Metallurgy and Exploration

    By Chen Lin

    Tectonic stress is an important parameter for understanding the dynamics of underground engineering and for the exploitation of coalbed methane. Multiple-period structural features usually have comple

  • SME
    Multi-Gravity Separator: An Alternate Gravity Concentrator To Process Coal Fines

    By A. K. Majumder

    The multi-gravity separator (MGS) is a novel piece of equipment for the separation of fine and ultra-fine minerals. However, the published literature does not demonstrate its use in the separation of

    Jan 1, 2007

  • SME
    Newmont’s Ahafo Mine – Gold Mining in West Africa

    By John Mitchell, Mark K. Jorgensen

    Newmont Mining’s Ahafo Mine is located in Ghana approximately 300 km (190 miles) northwest of the capital city of Accra in the Brong-Ahafo region. The nearest city is Sunyani, located 45 km (28 miles)

    Jan 1, 2007

  • SME
    Thermal Fragmentation as a Possible, Viable, Alternative Mining Method in Narrow Vein Mining? Mining, Metallurgy and Exploration (bd487436-b3d1-4763-8a02-8d7c396a0d79)

    By Larissa Koroznikova, Steve Durkin, Patrick Bouwmeester, Michael Tuck

    In currently used mining methods, blasting techniques often causes dilution of valuable ore and results in costly processing requirements. In the context of narrow vein mining of thin and highly conce

  • SME
    The Regulation of Subsidence and Underground Coal Mining in Illinois

    By Paul J. Ehret

    With the passage of the Surface Mining Control and Reclamation Act (SMCRA), and the implementation of state permanent programs, underground coal mining operations are for the first time subject to gov

    Jan 1, 1986

  • SME
    Allegheny River Tunnel Crossing Project

    By Paul A. Roy

    The North Shore Connector Project for the Port Authority of Allegheny County constructs twin Tunnel Boring Machine (TBM) tunnels through cohesive soils and rock beneath the Allegheny River and a narro

    Jan 1, 2008

  • SME
    Pressure Sulfuric Acid Leaching of Manganese-Rich Slag with Pyrite as Additive Mining, Metallurgy and Exploration

    By Shanming He, Jinliang Wang, Xiaoming Wang, Chunfa Liao

    Large amounts of manganese-rich slag were generated from smelting low-grade manganese ore containing high iron and high phosphorus in electric furnace or blast furnace, which contain 25–40 mass% Mn. T

  • SME
    Pressure Sulfuric Acid Leaching of Manganese-Rich Slag with Pyrite as Additive Mining, Metallurgy and Exploration (7db33dda-c50f-417f-8a4f-b58cc9ccfa5b)

    By Shanming He, Jinliang Wang, Xiaoming Wang, Chunfa Liao

    Large amounts of manganese-rich slag were generated from smelting low-grade manganese ore containing high iron and high phosphorus in electric furnace or blast furnace, which contain 25–40 mass% Mn. T

  • SME
    The Crossrail Experience

    By Bill Tucker, Mike Black

    "PROJECT OVERVIEW Crossrail, Europe’s largest construction project, will increase London’s transportation capacity by 10% when it opens in 2018. The Crossrail scheme is a combination of surface and un

    Jan 1, 2016

  • SME
    Lithium Resources

    By Ihor A. Kunasz

    Lithium minerals occur predominantly in pegmatites that contain mineral assemblages derived from the crystallization of post- magmatic fluids or from the metasomatic action of residual peg- matitic fl

    Jan 1, 1994

  • SME
    Liebherr Celebrates 50th Anniversary, Introduces 300-ton Mining Truck

    By William R. Yernberg

    In October 1999, Liebherr-America, Liebherr Construction and Liebherr Mining Equipment held anopen house at its Newport News, VA, plant. The open house was held to celebrate the company’s50th anni

    Jan 1, 2000