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Distribution and genesis of some epizonal Zn-Pb and Au provinces in the Carpathian-Balkan region
By A. H. G. Mitchell
Most, if not all, of the six recognised post-Cretaceous, predominantly andesitic mineralised belts in the region are now thought to be subduction-related magmatic arcs. The Inner Carpathian arc and th
Aug 1, 1996
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Thermodynamic properties of magnesium chloride ammines
A study of the thermodynamic properties of magnesium chloride ammines was carried out with the ultimate objective that the thermal decomposition of the hexammine MgCl2.6NH3 may prove successful on a c
Jun 13, 1905
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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
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Hydraulic sorting of co-disposed coarse and fine coal wastes
By P. H. Morris
Nineteen field trials of the co-disposal of fine coal tailings and coarse coal wastes were conducted at the dual Goonyella-Riverside mine in Queensland and at the Hunter Valley No. 1 and Warkworth min
Jun 19, 1905
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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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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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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
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Thermodynamics and characterisation of K2TaF7 precipitated from fluoride solutions
By F. T. Da Silva
Concentrates of titaniferous minerals containing around 30 wt% Ta2O5 are processed hydrometallurgically by hydrofluoric acid leaching and solvent extraction, followed by the precipitation of hydrated
Jun 21, 1905
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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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Liquid-phase mass transfer in top-blown open-channel flows
By N. A. Warner, R. K. Manna
Physical modelling of liquid-phase oxygen mass transfer in a water model of part of a proposed new polymetallic smelter has been achieved. A study of solute mass transfer caused by multiple, subsonic
Jul 1, 1991
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Replacement mineralization styles and breccia dome formation at Dirtlow Rake fluorite-barite deposit, Castleton, England
By C. A. Jeffrey
The Dirtlow Rake vein deposit, which is up to 12 m thick, contains a range of paragenetically linked replacement mineralisation styles typical of many Mississippi Valley-type deposit environments. The
Jun 19, 1905
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Potassium, uranium and thorium geochemical maps of the conterminous USA
By J. S. Duval
Paper presented at the 28th International Geological Congress held in Washington DC, July 1989 (International geochemical mapping sessions). The compilation of the National Uranium Resource Evaluation
Jul 1, 1991
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Microchemical characterization of alluvial gold from Scotland
By M. T. Styles, E. Condliffe, R. C. Leake, R. J. Chapman, D. J. Bland
Paper presented at Mineralisation in the Caledonides, the Mike Gallagher memorial meeting held in Edinburgh, 27-28 June 1996. Quantitative point analysis and microchemical mapping identified 52 differ
Jun 19, 1905
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New biological treatment plant for heavy metal-contaminated groundwater
By L. J. Barnes, R. O. Koch, J. H. Versteegh, C. J. N. Buisman, P. J. H. Scheeren
Several water treatment options have been studied and piloted. A process based on activity of sulphate reducing bacteria combines sulphate removal and heavy metal removal in one process step. The anae
Jan 12, 1992
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Discussion of Mr. Samuel Dean's paper on Modern coal mining methods, with some comparisons
By Dean S.
Further discussion at the North of England Institute of Mining and Mechanical Engineers' general meeting held in Newcastle-upon-Tyne, 12th February 1916, with Mr. T.Y. Greener, President, in the chair
Dec 1, 1916
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A methodology for the statistical and spatial assessment of soil contamination around mining districts
By S Durucan, A Korre
The application of simple methods of statistical analysis, coupled with geostatistical analysis and geographic information systems, can only summarise and give an outline of the spatial distribution o
Jun 21, 1905
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In-situ modification of platinum-group minerals in Tonsina ultramafic complex, south-central Alaska: implications for surficial dispersion and geochemical exploration
By N. B. J. Kieser
Paper presented at the IAGOD international symposium on mineralization related to mafic and ultramafic rocks, held in Orleans, France, 1-3 September 1993. Platinum-group minerals (PGM) in the enriched
Apr 1, 1994
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Intelligent drilling control
By P. J. Rowsell, M. D. Waller
Paper presented at a meeting on: Artificial intelligence in the minerals sector, held in Nottingham, UK, 20 April 1993. The applications of artificial intelligence systems in the upstream petroleum in
Apr 1, 1994
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Bearing capacity of open-cut coal-mine backfill materials
By A. R. Naderian
Laboratory strength and deformation testing of freshly blasted sandstone and claystone overburden from Jeebropilly colliery in Queensland and in-situ plate-bearing tests on four backfills of different
Jun 19, 1905
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Large deformation analysis for rock excavations - a numerical study
By J. A. Hudson, X. D. Pan
A rock mass responds to excavation according to the properties of the intact rock, the network of contained discontinuities and the susceptibility of the rock mass to weathering. Large deformation oft
Sep 1, 1991