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  • IOM3
    Approach to the quantification of hanging-wall behaviour

    By D. M. Milne, P. J. Lunder, R. C. Pakalnis

    During the mining of an open stope, deformation of the hanging-wall and the potential for dilution generally increase with the size of the exposed hanging-wall. Excluding discrete structures that may

    Apr 1, 1996

  • IOM3
    Drill productivity evaluation by monitoring

    A production drill rig at a site in Sweden was equipped with a monitoring system to estimate production statistics. Drill running times, drill hole depths, penetration rate, rotation speed, thrust, ai

    Jun 19, 1905

  • IOM3
    Metasediment-hosted epithermal Sb-(Au) mineralization in central Spain: role of hidden Hercynian granitoids

    By M. Gallego, R. Oyarzun, L. Ortega

    Evidence of metallogenic activity in an area dominated by Upper Precambrian and Palaeozoic metasediments was partially explained in the 1980s when drilling and a geophysical survey detected hidden int

    Aug 1, 1995

  • IOM3
    Exploration and origin of stratigraphically controlled platinium-group element mineralization in crustal sequence ultramafics, Shetland ophiolite complex

    By R. A. Lord, H. M. Prichard

    Paper presented at Mineralisation in the Caledonides, the Mike Gallagher memorial meeting held in Edinburgh, 27-28 June 1996. The complex exemplifies a class of olivine-rich, platiniferous ophiolite c

    Jun 19, 1905

  • IOM3
    Characterisation of Bangladesh ilmenite and study of its reduction mechanism by X-ray diffraction

    By A. S. W. Kurny, M. Z. Huq

    Bangladesh ilmenite is partially altered, containing pseudorutile, rutile and haematite as well as the predominant ilmenite phase. A typical analysis is 39.45% TiO2, 24.19% FeO and 33.0% Fe2O3. Reduct

    Jun 19, 1905

  • IOM3
    Bioleaching of iron-stained sands

    By A. F. Neil, A. S. Bahaj, P. Watkins, P. M. Hyslop, C. E. Kirby, P. A. B. James

    The results of initial work indicate that for 3 of the 5 quarry sands bioleaching reduces the iron oxide content to a commercially acceptable 0.035 wt% Fe20 3, although the time taken to achieve this

    Jun 18, 1905

  • IOM3
    Notes on the specification of iron and steel suitable for colliery use

    By Simons W.

    The object of the paper is to describe the standards of quality that should be specified in ordering material ordinarily required for colliery use, and also the qualities most suitable for particular

    Dec 1, 1916

  • IOM3
    Digital simulation of a mechanical-drive dump truck

    By I. R. Hanby

    A simple but comprehensive method has been developed for the simulation of a mechanical-drive dump truck that enables various parameters to be predicted as a function of time throughout its whole cycl

    Jan 4, 1992

  • IOM3
    Risk analysis design applications in mining geomechanics

    By R. J. Pine

    Procedures are described for the application of risk analysis or probabilistic methods to mining geomechanics. The methods are widely applicable to existing mine design models. Detailed examples are g

    Jan 12, 1992

  • 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
    High-speed air-compressors for mining work, paper presented at a general meeting of the North Staffordshire Institute of Mining and Mechanical Engineers held in Stoke-on-Trent, 17 January 2016

    By Walshe J. M.

    The slow-speed compressor is giving place to the high-speed type, with its greater economy of material and space; and, where very large units are required, the turbo-compressor is supplying the need.

    Dec 1, 1916

  • IOM3
    Comparison of indicator and ordinary kriging in assessment of in-situ coal quality in a Turkish mine

    By A. E. Tercan, D. Mamurekli

    Ordinary kriging on the assumption of a gaussian error distribution and indicator kriging were used to derive the probability that a given calorific value would or would not be exceeded by coal from a

    Jun 19, 1905

  • IOM3
    A future in coal: viable or not?

    By G. Kill

    Although other energy commodities have developed successful futures contracts, long-term contracts still dominate the coal market. To establish whether coal markets will develop in the same way, coal

    Aug 1, 1994

  • IOM3
    Avoiding the zero-flow solution in mass-balance equations

    By S. L. Gay

    The conventional mass-balance equations used as constraints can lead to flow estimate values of zero even though the flow estimates should be some positive number. This is because many of the constrai

    Jun 21, 1905

  • IOM3
    The sinking and equipment of a circular shaft

    Paper presented at the Mining Institute of Scotland's annual general meeting held in Glasgow, 8th April 1916. Although there is nothing novel or difficult about the sinking described, circular shafts

    Dec 1, 1916

  • IOM3
    Influence of source of sample data on geostatistical estimation of reserves of a copper mine

    By R. R. Tatiya

    Data obtained from a copper mine were used in a comparative study of the reserve estimates generated by applying geostatistical methods to surface borehole data, underground core drilling results and

    Jun 19, 1905

  • IOM3
    Generation of small bubbles by hydrodynamic cavitation

    By J. A. Finch, Zhenghe Xu, Z. A. Zhou

    Whether the microscopic bubbles generated by the high energy dissipation and high feed-slurry velocities in new flotation cells are stable in solution and what roles they play in particle collection a

    Jun 21, 1905

  • IOM3
    Hydraulic conditions leading to exponential mine tailings delta profiles

    By P. H. Morris

    The exponential delta profile equation matches the profiles of a wide range of coal and metalliferous subaerial tailings deltas well, but the original model implies unrepresentatively low solids conce

    Jun 19, 1905

  • IOM3
    An energy-based approach to blast design

    By D. W. Taylor, I. W. Farmer, N. Mojtabai

    Rittinger's and Bond's descriptions of rock crushing relate the energy input required to fracture rock and the surface energy required to form new fractures to the change in specific surface area of f

    Jun 19, 1905

  • IOM3
    Mass transfer and interfacial phenomena in bubble-agitated systems

    By J. K. Brimacombe, F. D. Richardson

    Studies have been made of interfacial turbulence occurring in reactions in which indium, zinc and cadmium, dissolved in amalgams, are oxidised into aqueous phases by ferric or mercurous ions. It has b

    Dec 1, 1971