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TitlePrincipaux résultats d'un levé électromagnétique à dimension temporelle réalisé dans la région de Chibougamau-Chapais, au Québec
AuthorKeating, P; Houle, P; Dumont, R
SourceGeological Survey of Canada, Current Research (Online) 2007-C4, 2007, 10 pages, (Open Access)
PublisherNatural Resources Canada
Mediaon-line; digital
File formatpdf (Adobe Reader)
NTS32G/06NE; 32G/07NE; 32G/07NW; 32G/08NW; 32G/09; 32G/10; 32G/11SE; 32G/11NE; 32G/14SE; 32G/14NE; 32G/15; 32G/16; 32H/12NW; 32H/13SW; 32H/13NW; 32I/04SW; 32J/01SE; 32J/01SW; 32J/02SE; 32J/02SW; 32J/03SW
AreaChibougamau; Chapais; 1
Lat/Long WENS -75.0833 -73.8333 50.0833 49.4167
Subjects2; geophysics; economic geology; geophysical surveys; e m surveys, airborne; e m anomalies; conductivity; conductors; e m interpretations; mineral exploration; mineral potential; mineral deposits; sulphide deposits; zinc; metals
Illustrationsmaps; tables; graphs; histograms; profiles
ProgramTargeted Geoscience Initiative (TGI-3), 2005-2010
Released2007 09 01
AbstractRecherches en cours 2007-C4 An airborneMEGATEMII electromagnetic survey was flown over the Chibougamau-Chapais area in northwestern Quebec. Its main objective was to identify new massive-sulphide exploration targets, as many massive-sulphide orebodies have been mined in this area. The survey detected 25% more electromagnetic anomalies than previous electromagnetic surveys flown between 1972 and 1991. It detected conductors with interpreted depths of as much as 150 m, whereas the estimated maximum depth of conductors detected during earlier surveys was 75 m. It revealed extensions to known conductors, therefore providing new exploration targets. Survey results also show the importance of very weak conductors that may be associated with zinc deposits. Examples of various types of conductors identified during the survey are presented.