Diamond exploration targets, Michipicoten greenstone belt

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Mots clés : Exploration;Diamonds;Geochronology;Lithology;Petrography
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Sommaire: This paper describes a real-time fleet management system for an undergroun mine. Dispatching, routing and scheduling are handled simultaneously, taking into account the mine status, operational constraints and vehicle location information. Each assignment decision takes into account the traffic on the road segments of the mine network, whether road segments are bi-directional or uni-directional, and ensures that each LHD (load-haul-dump) vehicle arrives at loading and dumping points with...
Publication: CIM Bulletin
Auteur(s): M. Gamache, P. Cohen, R. Grimard, L.-P. Bigras
Mots clés: Fleet-management system, Underground mining, Laud-haul-dump (LHD) vehicle, Dispatching, Scheduling, Routing.
Numéro: 1077
Volume: 97
Année: 2004
Texte
Sommaire: Oilfield cementing has been utilized in the industry since the turn of the century. Originally, wells were shallow and criteria for well integrity were somewhat limited. Since that time, wells have stretched the envelope in depth, temperature, and pressure. Environmental regulations have also become more stringent, thus, the importance of hydraulic isolation between permeable zones, and between these zones and surface has become more and more important. Initially, oilfield cements were...
Publication: CIM Bulletin
Auteur(s): D. Getzlaf
Mots clés: Cementing, Oilfield, Additives, Compatibility, Optimization.
Numéro: 1077
Volume: 97
Année: 2004
Texte
Sommaire: At the 25th Annual B.C. Mine Reclamation Symposium in September 2001, Huckleberry Mines Limited received the Jake MacDonald Reclamation Award for its exemplary mine waste management plan, conceived to prevent the onset of acid rock drainage (ARD) and facilitate reclamation of the site. The mine is an excellent example of a total mine waste management plan, with all materials scheduled in detail for the life of the mine. The filling plan for the waste management facility takes into considerati...
Publication: CIM Bulletin
Auteur(s): D.C. Johnson, H.F. Letient
Mots clés: Huckleberry Mines, Environmental planning, Mine waste management, Acid rock drainage, Tailings deposition.
Numéro: 1077
Volume: 97
Année: 2004
Texte
Sommaire: A case study for the application of a novel geostatistical technique for resource estimation of a narrow steeply dipping, gold-silver mineralized quartz vein deposit is presented. The technique is novel in two respects. First, mineral grades are kriged directly rather via the accumulation method more often applied to vein deposits and, second, a modified 2D ordinary kriging algorithm is used that allows the calculation of a single grade and variance for irregular shaped blocks of varying...
Publication: CIM Bulletin
Auteur(s): D. Roy, S.D. Butt, P.K. Frempong
Mots clés: Geostatistics, Resource estimation, Semi-variogram modelling, Kriging, Poura mine.
Numéro: 1077
Volume: 97
Année: 2004
Texte
Sommaire: The physical, chemical and mineralogic characteristics of zeolites allow commercially important applications. While adoption of zeolite technology is slow in the United States compared to other regions of the world, continued testing and research has shown a wide range of uses for these minerals. They are important catalysts in petroleum refining, molecular sieves able to separate gases, and chemically inert carriers of reactants. The zeolite clinoptilolite produced by St. Cloud Mining...
Publication: CIM Bulletin
Auteur(s): J.M. Barker, P.S. Freeman. G.S. Austin, R.S. Bowman
Mots clés: Zeolites, Mining, Processing, Transportation, Marketing, St. Cloud Mining.
Numéro: 1077
Volume: 97
Année: 2004
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