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Gold mining in Africa - the final frontier?
By A. Sutton-Pratt
The African continent has been the most prolific producer of gold since mining began. Although most of this gold has come from South Africa, other countries have also been important contributors in th
Apr 1, 1996
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Platinum-group elements in Fox River Sill, Manitoba, Canada: implications with respect to influxes of fresh magma and exploration for PGE deposits
By O. R. Eckstrand, M. Asif, P. L. Schwann, A. J. Naldrett, R. J. F. Scoates
Paper presented at the IAGOD international symposium on mineralisation related to mafic and ultramafic rocks, held in Orleans, France, 1-3 September 1993. PGE-bearing sulphide mineralisation is contai
Apr 1, 1994
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Open-pit design and scheduling by use of genetic algorithms
By B. Denby
Paper presented at a meeting on: Artificial intelligence in the minerals sector, held in Nottingham, UK, 20 April 1993. The design and scheduling of open pit operations are consistent problems encount
Apr 1, 1994
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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
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Case-based reasoning: a catalyst for improvement
By G. S. Pauley
Paper presented at a meeting on: Artificial intelligence in the minerals sector, held in Nottingham, UK, 20 April 1993 (original title: Case-based reasoning can be a catalyst for improvement). A new c
Apr 1, 1994
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Geology, mineralogy and genesis of gold mineralization at Calliachet-Urlar Burn, Scotland
By R. A. D. Pattrick, R. A. F. Ixer
Paper presented at Mineralisation in the Caledonides, the Mike Gallagher memorial meeting held in Edinburgh, 27-28 June 1996. At Calliachar Burn, 14 steeply dipping quartz-sulphide veins, with and wit
Jun 19, 1905
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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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Can blasting enhance the grindability of ores?
By K. Nielsen, J. Kristiansen
A series of laboratory blasting and grinding tests on three types of hard and competent rock (coarse-grained monzonite, fine-grained granite and very fine-grained gabbro) showed that a higher level of
Dec 1, 1995
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Reserve estimation method for Afsin-Elbistan Collolar brown-coal district
By A. G. Pasamehmetoglu, N. Celebi, K. Erarslan
A deposit evaluation system has been developed for a proposed new mine in the basin around Collolar in Turkey. It includes compositing, gridding and reserve estimation facilities and takes account of
Sep 1, 1991
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Geology and geochemistry of Iperindo primary gold deposit, Ilesha schist belt, southwestern Nigeria
By G. M. Steed, A. O. Oyinloye
The deposit lies in amphibolite-facies biotite granite-gneisses of Proterozoic age, 4 km east of a major crustal break known as the Ifewara-Zungeru fault. Gold mineralisation is contained in a zone of
Apr 1, 1996
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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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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
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Metallogenic evolution of the Scandinavian Caledonides
By F. M. Vokes, P. M. Ihlen
Paper presented at Mineralisation in the Caledonides, the Mike Gallagher memorial meeting held in Edinburgh, 27-28 June 1996. Ore deposition was related to three major stages: continental rifting and
Jun 19, 1905
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Physical and chemical properties of bentonite deposits of Milos Island, Greece
By G. E. Christidis, P. W. Scott
The deposits were formed from low-temperature alteration of pyroclastic rocks. Properties investigated include their cation exchange capacity, swelling capacity, pH, rheological properties, the green
Jun 18, 1905
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Assessment of risk of rockfall from active and abandoned quarry slopes
By M. W. Robotham, H Wang
removal efficiency is analysed from a stochastic
Apr 1, 1995
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Probabilistic risk analysis of slope stability
By A. P. Whittlestone, J. D. Johnson, R. J. Pine, M. E. Rogers
standpoint. The effect on efficiency of collisions
Apr 1, 1995
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Pechenga area, Russia - part 2: nickel-copper deposits and related rocks
By V. A. Melezhik, A. H. Green, L. N. Grinenko
Finally, a theoretical model is constructed that takes
Aug 1, 1994
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Nature of gold mineralization at Mule Canyon, Lander County, Nevada, USA
By T. J. Serenko
The epithermal deposit is hosted by Tertiary volcanic rocks that lie between mid-Miocene normal faults of the Northern Nevada Rift. Petrographic, laser-ablation and metallurgical observations suggeste
Aug 1, 1995
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Discount rates and risk assessment in mineral project evaluations; Risk assessment in reserve estimation and open-pit planning; Inclusion of risk assessment in open-pit design and scheduling: contributed remarks
By H. K. Taylor, B. Denby, L. D. Smith
Contributions by H.K. Taylor and G.A. Davis discuss the three papers published in Transactions IMM A, vols. 103 and 104, with responses by Smith and Dowd
Dec 1, 1995
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Effect of guar gum on selective separation of sphalerite from galena by flotation
By R. K. Rath
Adsorption, electrokinetic and flotation studies were carried out. The maximum density of adsorption of guar gum was obtained at pH 7.5 on sphalerite and at pH 11.5 on galena. Flotation recovery of sp
Jun 21, 1905