Metals exploration in a changing industry

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Mots clés : Mining;Geology;Exploration;Orebodies;Junior companies
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Texte
Sommaire: A method is described for determining the viability of hard rock orebody extraction by block caving. Using a very limited amount of geotechnical data, the procedure enhances Laubscher’s empirical stability graph method by using the complex structural modelling system (ChaSM) to assess cavability and block cave tonnages.
Publication: CIM Bulletin
Auteur(s): R.J. Butcher
Mots clés: Block caving, Hard rock orebody, Extraction, Tonnage.
Numéro: 1058
Volume: 95
Année: 2002
Texte
Sommaire: To satisfy their continuing need to replenish or expand their ore reserves, mining companies are faced with the dilemma of arriving at a proper balance between the dual avenues of discovery through in-house exploration and of acquisition of properties that are relatively proven or are even in production. The returns from exploration activities may be spectacular, but are unpredictable. The allure of an acquisition lies in its promise of quick and risk-reduced addition to reserves. However, it...
Publication: CIM Bulletin
Auteur(s): H.O. Seigel, J.C. Gingerich, E.O. Köstlin
Mots clés: Ore reserves, Exploration, Acquisition.
Numéro: 1058
Volume: 95
Année: 2002
Texte
Sommaire: Noranda has successfully developed and implemented two leading-edge mineral exploration technologies — hyperspectral remote sensing and 3-D seismic surveying. Airborne hyperspectral imaging provides detailed geological and mineralogical mapping capability at both a regional and project scale that facilitates improved selection of prospective terrain and an accelerated exploration cycle. Noranda, in partnership with Falconbridge, has licensed the exclusive use of the Earth Search Sciences Inc....
Publication: CIM Bulletin
Auteur(s): J.C. Gingerich, L.W. Matthews, M. Peshko
Mots clés: Exploration, Hyperspectral technology, 3-D seismic technology, Sensing, Surveying.
Numéro: 1058
Volume: 95
Année: 2002
Texte
Sommaire: The development of a DC resistivity instrumentation system for data acquisition in extreme topography yielded an unexpected bonus in the quality and information content of the type of raw data gathered. Not only were traditionally too-rough areas being investigated systematically for the first time, the unique high-density, multi-directional raw data were providing the opportunity to greatly expand the range of conductive and resistive signatures that could be accurately recognized. Using a...
Publication: CIM Bulletin
Auteur(s): G. Shore
Mots clés: Resistivity mapping, Inversion, 3-D, Imaging resources, Resource settings, Exploration, Geophysics.
Numéro: 1058
Volume: 95
Année: 2002
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