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  • IOM3
    Trace-element geochemistry and alteration facies associated with epithermal gold-silver mineralization in the evolving volcanic centre, Rosita Hills, Colorado, USA

    By C. J. A. Mcewan, C. M. Rice

    The Rosita Hills contain rich, vein- and breccia pipe-hosted precious metal deposits. Volcanic activity occurred in two cycles - an early, mainly andesitic cone-building phase that terminated in the f

    Jan 1, 1991

  • 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
    Novel gas hold-up probe and application in flotation

    By F. J. Tavera, J. A. Finch

    A probe suitable for on-line measurements of gas hold-up in industrial flotation systems has been developed. It is based on an open cell for measurement of slurry-gas conductivity and a novel syphon c

    Jun 18, 1905

  • IOM3
    Origin of brine inflows at Boulby potash mine, Cleveland, England

    By M. A. Leosson, S. H. Bottrell, R. J. Newton

    Sylvite at Boulby is mined 1 140 m beneath the sea and the mine suffers from the influx of water. This is of two kinds: persistent flows originating in the Sherwood Sandstone aquifer and entering the

    Jun 18, 1905

  • IOM3
    Removal of copper from magnetite concentrates by chlorination

    Two concentrates from Palabora, in South Africa, containing 0.056-0.068% undesirable Cu and 0.8 or 2.2% Ti, were chlorinated with air:chlorine ratios of 10:1, 15:1 and 20:1 at temperatures between 1 2

    Jun 21, 1905

  • IOM3
    Recycling of cadmium from domestic, sealed NiCd battery waste by use of chlorination

    By A Cox

    It has been demonstrated that all the cadmium from spent batteries, typically 4 g per battery, can be recovered by burning polyvinyl chloride waste to yield hydrogen chloride; this reacts to produce

    Jun 21, 1905

  • IOM3
    Risk model of planned profit from a surface mining venture

    By R. A. Halatchev

    A risk model for assessment of the uncertainty in the forecasts of the planned profit is developed. It is based on the selling price of the metal recovered from the ore and the production per shift of

    Dec 1, 1996

  • IOM3
    Recovery of phosphate values from, and flocculation of, phosphatic clay waste from Abu-Tartur, Egypt

    By M. K. Abd El-Rahman

    A complete chemical analysis of the waste showed that it contains 15.64% P2O5; X-ray diffraction analysis revealed that it is composed mainly of francolite, calcite, pyrite, quartz and dolomite. The p

    Jun 21, 1905

  • IOM3
    Numerical prediction of the liberation spectrum of a two-phase texture

    By G. D. Schena, M Zanin

    A numerical approach is presented for predicting the liberation of phases during comminution, with direct calculation of a liberation spectrum giving the fraction of the particulate system in each nar

    Jun 21, 1905

  • IOM3
    Kinetics of Cu(II) adsorption by Penicillium sp.

    By S. P. Mishra, G. R. Chaudhury

    The adsorption of Cu2+ ions by Penicillium sp. displayed a dual rate, with an initial faster phase followed by a slower one. The adsorption rate increased with increasing pH due to chemical and bioche

    Aug 1, 1995

  • IOM3
    Urban explosion: a development that challenges tunnelling technology

    By S. Babendererde

    The twenty-ninth Sir Julius Wernher memorial lecture of the IMM, presented at Tunnelling '97, London, 2-4 September 1997. The tunnelling industry is well prepared to face the challenge from the popula

    Jun 19, 1905

  • IOM3
    Strata-bound pyritic copper mineralization on a fore-arc setting in northwestern India: a Proterozoic Besshi-type deposit

    By A. D. Mukherjee, H. N. Bhattacharya

    Middle Proterozoic sulphide ore mineralisation occurs in isolated blocks of the NE-SW trending Delhi fold belt composed of Delhi Supergroup rocks. The Ajari-Basantgarh-Pipela belt forms part of the lo

    Jun 19, 1905

  • IOM3
    Practical approach to the solubility of colemanite ores

    By S. G. Ozkan

    An investigation was carried out into the effect of physical parameters, such as particle size of the sample, residence time, solid/liquid ratio and impeller speed in the flotation cell, on the solubi

    Jun 21, 1905

  • 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
    Geopressure zones as proximal sources of hydrothermal fluids in sedimentary basins and the origin of Mississippi Valley-type deposits in shale-rich sequences

    By A. D. Fowler, M. T. Anderson

    A phenomenological model is presented that relates Pb-Zn mineralisation to proximal geopressure zones. Typically, geopressure zones (GPZ) consist of masses of undercompacted sediment encapsulated with

    Jan 1, 1991

  • IOM3
    Some effects of earth-movement on the Coal-Measures of the Sheffield district (South Yorkshire and the neighbouring parts of West Yorkshire, Derbyshire, and Nottinghamshire), part II, fig. VII: Geological map of the Sheffield district

    By Fearnsides W. G.

    The map shows the sites of collieries and important boreholes in the district, with approximate underground contours of the pre-Permian surface of the Coal-Measures and of the Barnsley Bed

    Dec 1, 1916

  • IOM3
    Subject index

    Jan 1, 1984

  • IOM3
    Exploration methods for nuclear waste repositories or mineral deposits - from source to sink, where's the front?

    By M. J. Russell, W. E. Stephens, D. B. Mohamad, A. B. MacKenzie

    Redox front processes in rocks are important in the context of both radioactive waste disposal and the development of orebodies. Results are presented from a study of the distribution of uranium and t

    Jan 12, 1992

  • IOM3
    Notes on the history of the safety-lamp

    By Hardwick F. W., O'Shea L. T.

    The survey covers: coal-mine lighting prior to the invention of the safety-lamp, including candles, the flint-and-steel Spedding mill, and mirrors; the growth in knowledge of firedamp; the Society in

    Dec 1, 1916

  • IOM3
    Some effects of earth-movement on the Coal-Measures of the Sheffield district (South Yorkshire and the neighbouring parts of West Yorkshire, Derbyshire, and Nottinghamshire), part II

    By Fearnsides W. G.

    The second part of the paper, presented at the Midland Institute of Mining, Civil and Mechanical Engineers' general meeting held in Doncaster on 27th May 1916, addresses the post-Carboniferous and pre

    Dec 1, 1916