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  • IOM3
    Regional polyphase and polymetallic vein mineralization in the Caledonides of the central Wales orefield

    By J. S. Mason

    Paper presented at Mineralisation in the Caledonides, the Mike Gallagher memorial meeting held in Edinburgh, 27-28 June 1996. Detailed paragenetic studies of the post-tectonic fracture-hosted vein min

    Jun 19, 1905

  • IOM3
    Landform replication in quarrying

    By R. Allington, G. Walton

    The approach has been applied with success to the restoration of chalk workings in southern England, and research and trials relating to restoration blasting and the replication of limestone dale land

    Aug 1, 1994

  • IOM3
    Flotation of pyrite and arsenopyrite at alkaline pH

    By R. J. Gochin, M. A. Diaz

    A modified Hallimond tube is described which allows the determination of the ultimate recovery R and the flotation rate constant k in a single, continuous experiment. The range of fine particles which

    Apr 1, 1995

  • IOM3
    Assessment of rock mass damage from smooth wall blasting at El Soldado mine, Chile

    By A. M. Tunstall, N. Djordjevic, H. A. Villalobos

    The damage zone behind a typical smooth-wall blast in the open pit was assessed by visually examining diamond drill core to identify blast-induced cracking, mapping core rock quality designations to i

    Jun 19, 1905

  • IOM3
    Studies of regional drainage geochemistry in Jamaica

    By R. G. Garrett, A. J. S. Geddes

    Paper presented at the 28th International Geological Congress held in Washington DC, July 1989 (International geochemical mapping sessions). The 1986 geochemical survey was successful in recognising a

    Jul 1, 1991

  • IOM3
    Diagnosis of tunnel roof stability with a robotic sensor test bed

    By G. Zhan, P. Mousset-Jones, G. Danko, J. J. K. Daemen, C. Mezei

    Paper presented at the conference Risk assessment in the extractive industries, held in Exeter, 23-24 March 1994, and first published London: IMM, 1994, preprint volume. 18pp., 12 refs. (Originally en

    Dec 1, 1994

  • IOM3
    Ammonia leaching process for Escondida copper concentrates

    By W. P. C. Duyvesteyn, B. J. Sabacky

    Reprinted with revisions from Extractive metallurgy of copper, nickel and cobalt, volume I: Fundamental aspects. ed. Reddy R.G., Weizenbach R.N. Warrendale, Pennsylvania: The Minerals, Metals and Mate

    Dec 1, 1995

  • IOM3
    Determination of separator efficiency curve from areal measurements on polished sections

    By G. D. Schena, C Chiaruttini

    The feasibility is demonstrated of reconstructing the volumetric distribution of liberated particles and middlings by use of a damped, weighted least-square regularisation method. This allows a precis

    Jun 21, 1905

  • IOM3
    Resource evaluation of Nsuta manganese carbonate deposit, Ghana

    By S. Al-Hassan

    The deposit has been exploited for Mn oxide and carbonate since 1916. Known reserves of MnO, however, are almost depleted and the survival of the mine will depend on the exploitation of the carbonate.

    Jun 19, 1905

  • IOM3
    Antimony-gold deposits of North-Atlantic Acadian-Hercynian domain

    By M. L. Leblanc, J. F. Burzynski, D. J. Mossman

    A strong heterogeneity in the distribution of Sb+/-Au deposits exists within the North Atlantic Acadian-Hercynian domain. This is reflected in the regional disparity in Sb production among the various

    Dec 1, 1991

  • IOM3
    Convective scavenging and cascade enrichment in Bushveld Complex melts: possible mechanism for concentration of platinum-group elements and chromite in mineralized layers

    By Gruenewaldt von

    Paper presented at the IAGOD international symposium on mineralization related to mafic and ultramafic rocks held in Orleans, France, 1-3 September 1993. The principles of shear-driven aggregation of

    Apr 1, 1994

  • IOM3
  • IOM3
    Detection of collectors on concentrator mineral grains by time-of-flight secondary-ion mass spectrometry (TOF-SIMS)

    By E. Niehuis, J. Y. Kim, H. G. Cramer, S. L. Chryssoulis, K. G. Stowe, C. Bendel

    TOF-SIMS was used to detect, identify from parent molecular ions and determine the relative concentrations of collectors sorbed on the surface of mineral particles in concentrate and tailings samples

    Dec 1, 1995

  • IOM3
    Mathematical model of the dense-medium drum

    By P. J. Baguley

    The model has been developed on the basis of the observation that the partitioning behaviour of a particle is related to its calculated terminal velocity. It utilises a theoretical calculation of the

    Jun 18, 1905

  • IOM3
    Mine backfilling to limit surface subsidence: a case history

    By P. H. Carr, G. G. Marino, K. A. Patel

    Extensions to a correctional institution at Wabash Valley, Indiana, required development over abandoned coal-mine workings, at 90 m depth, where subsidence was possible at surface. Backfilling of the

    Jun 19, 1905

  • IOM3
    Lower Cretaceous Pb-Zn ores of Cantabria, northern Spain: new considerations based on petrological and geochemical evidence (Paper originally entitled: Lead and zinc ores from Santander, northern Spain - genetic implications)

    By M. Bustillo, S. Ordonez

    "Paper presented at the conference Economic geology in Europe and beyond II, models for mineral deposits in sedimentary basins, held in Keyworth, UK, 13-14 April 1994. The Mississippi Valley-type depo

    Apr 1, 1995

  • IOM3
    Thermodynamics of oxygen in liquid copper, lead and copper-lead alloys

    By J. H. E. Jeffes, K. T. Jacob

    Solid oxide galvanic cells, of the type: Pt,Ni-NiO | Solid electrolyte | O(metal),Cermet,Pt, were used to measure the activity coefficient of oxygen in liquid Cu at 1 100 and 1 300°C and in Pb at 1 10

    Dec 1, 1971

  • IOM3
    Laboratory-scale smelting of copper-anode slimes

    By G. G. Barbante

    Anode slimes produced during copper electrorefining are a valuable source of silver, gold, selenium and tellurium. The conventional pyrometallurgical process for treating slimes involves preliminary l

    Aug 1, 1995

  • IOM3
    Oxygen mass transfer in air-agitated Pachuca tanks, part 1: laboratory-scale experimental measurements; part 2: mathematical modelling of mass-transfer coefficients

    By G. G. Roy, R Shekhar

    Pachuca tanks are extensively used for the cyanide leaching of gold and the carbonate leaching of uranium, processes in which oxygen mass transfer plays a very important role. Experiments were carried

    Jun 18, 1905

  • IOM3
    Role of surface effects in improved dewatering of alumina trihydrate

    By L Besra, A. R. Prasad, B. P. Singh

    The role of surface-chemical phenomena and the physical processes that participate in the dewatering of a suspension of alumina trihydrate were subjected to a systematic investigation, which has incre

    Jun 21, 1905