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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
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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
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Regional geochemical mapping of Pt, Pd and Au over an obducted ophiolite complex, Shetland Islands, northern Scotland
By D. M. A. Flight, G. E. M Hall, P. R. Simpson
theoretical viewpoints.
Apr 1, 1994
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Similarity analysis applied to till geochemical data from southwest Finland: geochemical signatures of Vammala and Kylmakoski nickel deposits
By R. Lahtinen, M. Tiainen, R. Salminen
The application of similarity analysis derived from regional geochemical mapping data to the location of Ni-bearing intrusions was tested in southwest Finland, where a well-known nickel belt is situat
Dec 1, 1991
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Liberation of accessory minerals from various rock types by electric-pulse disintegration: method and application
By B. E. Burakov, S. D. Lupal, O. A. R. Thalhammer, B. Saini-Eidukat
Electric-pulse disintegration is a mineral separation technique that liberates all mineral grains from any igneous or metamorphic rock irrespective of its lithology or grain-size distribution. The nor
Apr 1, 1995
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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
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Orientation studies in Jamaica for multi-purpose geochemical mapping of Caribbean region
By J. Hurdley, J. A. Plant, H. Robotham, P. R. Simpson, G. C. Lalor
Paper presented at the 28th International Geological Congress held in Washington DC, July 1989 (International geochemical mapping sessions). The results of orientation studies for a regional geochemic
Jul 1, 1991
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Three-dimensional modelling of fill drainage in mine stopes
By L. T. Isaacs, W. H. Traves
A numerical model for analysing the drainage of fill in mine stopes has been described. The model can be used to analyse the process of fill drainage in existing and proposed mine stopes. The validity
May 1, 1991
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Components of a recovery factor in gold and tin dredging
By R. H. T. Garnett
N.B. This paper provoked much (positive!) discussion in later issues, with responses from the author (and thanks also for the many private contributions he had received) - see under Garnett R.H.T. Exp
Sep 1, 1991
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Silver solubility in sodum silicate slags
By Xiao Min You, D. R. Swonbourne
Smelting of Cu anode slimes involves the use of a slag to hold the oxidised Cu, but some Ag is also inevitably oxidised to the slag. The solubility of Ag in sodium silicate slags at 1 100 and 1 150 de
Jun 21, 1905
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Coastal superquarry: design and proposed development of Rodel Quarry on South Harris, Outer Hebrides, Scotland
By D. R. Wardrop, G. Walton
Paper presented at the UK minerals industry conference held in Leeds, UK, 3-5 April 1995. A description is given of the approach that has been taken to the design of the 550 000 000 t superquarry with
Jul 1, 1996
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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
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Analysis of pillar design practices and techniqes for U.S. limestone mines
By A. T. Iannacchione
Underground mining of stone in the US is increasing, as is the depth of overburden above the mines. Data gathered from mine visits, maps, discussion with operators and numerical simulation have been u
Jun 21, 1905
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Prediction of mining conditions at depth in Kristineberg Mine, Sweden
By N. Krauland, A. Nystrom, M. Board, S. Sandstrom
Several deep Swedish cut-and-fill mines experience severe ground control problems, including roof collapse and wall sloughing, as a result of variable rock quality and high in situ stresses. A project
Dec 1, 1995
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Prediction of performance of 76-mm compound autogenous cyclone at different outlet diameters
By R. Venugopal, T. C. Rao, N. Suresh
Experiments were carried out using the cyclone to treat coal in the size range -2.0+0 mm. The diameters of the cyclone outlets (vortex finder and spigot) were varied to study their effects on cyclone
Apr 1, 1995
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Hydrocyclone investigation and modelling at medium feed solids concentration of mixed minerals
By S. A. Sayed, M. N. M. Ahmed, M. A. Doheim
The performance of a 12.7 cm hydrocyclone was investigated by considering the effect of design variables (diameters of the vortex finder and apex) and operating variables (pressure drop and solids con
Apr 1, 1995
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Palaeogene basin development in Devon
By J. L. Robson, C. M. Bristow
mass flow rates of particles and air (the loading ratio).
Dec 1, 1994
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Knowledge-based system for condition monitoring of cone crushers
By I. D. Nock, R. M. Parkin
Paper presented at a meeting on: Artificial intelligence in the minerals sector, held in Nottingham, UK, 20 April 1993 (original title: Knowledge-based condition monitoring of cone crushers). A large
Apr 1, 1994
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Kinetics of reduction of metal values from fayalite-based slags - part 2: modelling of idealized slag-cleaning conditions
By B. S. Terry, C. L. Harris
Reduction kinetics from slags containing CuO(0.5), ZnO, PbO, NiO and SnO into a Cu-based metal phase were subjected to computer simulation using a previously developed model for the kinetics of metal-
Aug 1, 1995
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Extraction of rare earths and thorium from monazite by chlorination with carbon tetrachloride
By G. Adachi, K. Machida, T. Ozaki, K. Murase
The chlorination rate with CCl4 was unexpectedly slower than carbochlorination using chlorine under the same reaction conditions. Chlorination with CCl4 was topochemical and the amount of monazite rea
Jun 18, 1905