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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

  • IMMS
    Nautilus Minerals - Commercializing Submarine Massive Sulphide Systems

    By Michael Johnston

    Nautilus Minerals is exploring for high-grade gold, silver, copper, and zinc-rich submarine massive sulphide deposits (SMS) within the territorial waters of the sovereign state of Papua New Guinea.

  • CIM
    Optimizing Performance at the David Bell Mine Concentrator

    By K. Meyer

    "The largest cost centres of the David Bell Mine concentrator are grinding, leaching and effluent treatment. Optimizing results during the 6th year of operation are listed below: o SAG mill slurry den

    Jan 1, 1991

  • AUSIMM
    Mining Company Reporting Standards ù The South African Experience

    South Africa has joined the league of other major Western World countries by officially adopting its own code for public reporting of Mineral Resources and Mineral Reserves. The recently published Sou

    Jan 1, 2002

  • TMS
    Effects of Stoichiometry on Boron Carbide Production Via Self Propagating High Temperature Synthesis

    By Murat Alkan

    In this study, a self-propagating high-temperature synthesis (SHS) and following acid leaching techniques were carried out to produce boron carbide (B4C) powder. First, B2O3 was obtained through calci

    Jan 1, 2009

  • NIOSH
    Effect Of The Dip And Excavation Orientation On Roof Stability In Moderately Dipping Stone Mine Workings

    By A. T. Iannacchione

    Underground limestone mines typically use the room-and-pillar method of mining in the generally flat-lying limestone formations. In some cases the dip may exceed 5° which can result in unique roof ins

  • CIM
    Improvements in Column Flotation Through the Use of Microcel™ Spargers at Antamina

    By David Estrella, Hector M. Lizama, Jhonny Carrión

    "Microcel™ sparging systems were installed on one column of the molybdenum cleaner circuit and one column of the copper first cleaner circuit at Antamina. The Microcel™ system is known to generate fin

    Jan 1, 2008

  • AUSIMM
    Stratigraphic, Mineralogical and Physical Variations at Waikato - North Head, South Auckland: Preliminary Results

    By D Pastars, J L. Mauk

    Located at the southern end of the Awhitu

    Jan 1, 2001

  • AUSIMM
    Investigations of Massive Sulphide Mineralisation Along the Kermadec Arc 1996 - 2005

    By G J. Massoth, K Faure, A G, R G. Ditchburn, I J. Graham

    From modest beginnings in 1996, research into the mineral potential of New ZealandÆs Exclusive Economic Zone has progressed into a major multidisciplinary component of GNSÆs recently funded 6-year æMi

    Jan 1, 2005

  • AUSIMM
    Implementation of Advanced Transfer Chute Designs

    By N van Aarde, B A. Moore, S van der Merwe

    Frequently materials handling operations are compromised by transfer chute problems ranging from high wear rates, blockages and ineffective loading of the downstream conveyor. This paper will present

    Aug 12, 2013

  • SME
    Performance Monitoring Of Block Cave Mines Using Signal Processing And Waveform Analysis Of Gps Data

    By D. Rutledge

    Discrete (digital) signal processing techniques are proving to be very valuable tools for miners using the block cave method. Waveform analysis of different measured signals associated with active mi

    Jan 1, 2008

  • AIME
    The 125th Meeting Of The Institute

    THE 125th meeting of the Institute was held in New York, Feb. 20-23, 1922, inclusive, and was the most successful annual meeting of the Institute ever held; there was a larger registration, there were

    Jan 3, 1922

  • AUSIMM
    Minimising the water loss associated with mine tailings disposal

    By C Vuillier, A Roshdieh

    Water is the main medium for removing impurities from iron ore during wet processing to achieve a higher quality product. However, there is a substantial increase in freshwater consumption due to an i

    Jul 24, 2017

  • AIME
    Natural Gas Technology - Threshold Pressure Phenomena in Porous Media

    By M. R. Tek, L. K. Thomas, D. L. Katz

    Threshold displacement pressures are needed to determine how much overpressure can be used in storing natural gas. An experimental technique for determining threshold pressures by displacing water wit

    Jan 1, 1969

  • AIME
    Geology - Geology of the Nakina Iron Property, Ontario

    By W. T. Swensen

    The Anaconda Company, through its wholly owned subsidiary The Anaconda Company (Canada) I,td., has investigated, optioned and partially developed a large tonnage of iron ore amenable to magnetic conce

    Jan 1, 1961

  • SME
    Applicable Analytical Tools For A Seismic Design Of Underground Excavations

    By Christopher M. St. John, Tony F. Zahrah

    Empirical and numerical methods are the two extremes of the tools available for the seismic design of subsurface excavations and underground structures. Both have their limitations: when relying on pu

    Jan 1, 1985

  • AUSIMM
    Advanced Media-Free Fine and Ultra-Fine Grinding - The Kelsey Axial Displacement Mill

    By J Kelly, C Kelsey

    The Autogenous Kelsey Axial Displacement (KAD) mill is essentially a short retention time centrifugal mill, designed to effectively harness extraordinarily high concentrations of input energy for effi

    Jul 15, 2013

  • AUSIMM
    Constraints on the Dynamics of Rifting and Denudation on the Eastern Margin of Australia: Fission Track Evidence for Two Discrete Causes of Rock Cooling

    By A Raza, D P. Kohn, D A. Foster, A J. W Gleadow

    A large and increasing data base of apatite fission track results from sedimentary and granitic rocks exposed within the south-eastern highlands and along the continental margin ofAustralia provides c

    Jan 1, 1995

  • CIM
    Erection and Commissioning Issues for Large Grinding Mill Circuits

    By Randolph R. Dreher, Michael L. Schreder

    "In recent years, FFE Minerals has designed, installed and commissioned several large grinding mill circuits. This paper discusses the issues related to the erection and commissioning of large grindin

    Jan 1, 2001

  • CIM
    Hydrogen Peroxide Precipitation of Uranium at Madawaska Mines Limited

    By L. McFarlane, D. Rollwagen

    "Madawaska Mines produces a uranium precipitate (83-85% u3o8) using a magnesium oxide slurry to precipitate the uranium from solution. The solution, at approximately 9""0 g/l u3o8 is neutralized to a

    Jan 1, 1982