Modifications to the process gas handling system at Kidd Creek's copper smelter

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Mots clés : Metallurgy;Smelting
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Texte
Publication: CIM Bulletin
Auteur(s): C.F. Hews, P.N. Calder
Mots clés: MIROC, Research and development.
Numéro: 977
Volume: 87
Année: 1994
Texte
Sommaire: Digital image processing and enhancement techniques have been applied to airborne gamma ray spectrometry data from Sudbury, Ontario. These results have been correlated and compared with the available geological maps to evaluate their usefulness for identifying lithological units. Digital processing allows the correlation of various data sets, and different combinations of images can be tested and viewed as a composite image. Composite images with pseudo-colours provide an opportunity to...
Publication: CIM Bulletin
Auteur(s): V. Singh, Hugh G. Miller
Mots clés: Exploration, Gamma ray spectroscopy, Image processing, Radio-elements images, Surveys.
Numéro: 977
Volume: 87
Année: 1994
Texte
Sommaire: Placer mineral deposits may exist in the nearshore and shelf regions off western Canada. These deposits could contain gold, il-menite or zircon as well as sand and gravel aggregate. Two deposit types typical of the British Columbia offshore are: (1) modem and relict gold/titanium beach deposits; and (2) reworked relict titanifer-ous shelf deposits. The preservation of drowned beach heavy mineral concentrations resulted from a rapid relative sea level rise across the shallow shelves approximat...
Publication: CIM Bulletin
Auteur(s): J. Vaughn Barrie
Mots clés: Exploration, Placer mineral deposits, Marine mineral resources, Offshore mineral extraction, Queen Charlotte Islands, Gold deposits.
Numéro: 977
Volume: 87
Année: 1994
Texte
Sommaire: Seismic tomography is a process for obtaining images or maps of seismic velocity or other seismic properties of a rock mass. Seismic velocity images reveal variation in elastic moduli which, in turn, are related to several properties required in the geological or geo-mechanical assessment of a rock mass. Seismic velocity is sensitive to lithology, discontinuities, and in situ stress. Spatial or temporal variation of these properties may be indirectly assessed.
Tomographic measurements are...
Publication: CIM Bulletin
Auteur(s): W.J. McGaughey, R.G. McCreary, R.P. Young, S.C. Maxwell
Mots clés: Geophysics, Rock mechanics, Seismic tomography, Micro-seismic, Stress, Research and development.
Numéro: 977
Volume: 87
Année: 1994
Texte
Sommaire: Drilling accuracy represents an important quality control factor in minimizing dilution. Apart from geology, the factors governing drilling accuracy are largely within the control of the mine. Setup location and alignment, as well as actual drilling accuracy, can all be monitored toward their improved control. Trajectory deviation during drilling, although usually beyond the control of even the most experienced and conscientious driller, can be accounted for (if not fully controlled) by...
Publication: CIM Bulletin
Auteur(s): C. Hendricks, M. Scoble, F. Boudreault
Mots clés: Drilling, Blasthole drilling, Underground mining.
Numéro: 977
Volume: 87
Année: 1994
Texte
Sommaire: As part of LITHOPROBE's multidisdplinary earth science research program to understand the evolution of the North American continent, studies have been undertaken in a number of key areas in Canada. In the Trans-Hudson Orogen of Manitoba and Saskatchewan, LITHOPROBE results require re-evaluation of tectonic models related to its origin. In the Abitibi greenstone belt of Quebec and Ontario, results indicate a more complex evolution for the southern Superior province, one that links with the...
Publication: CIM Bulletin
Auteur(s): R.M. Clowes
Mots clés: Exploration, LITHOPROBE, Seismic reflection techniques.
Numéro: 977
Volume: 87
Année: 1994
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