A new high-resolution airborne geophysical survey
for the Chapais-Chibougamau area
Benoît Dubé, Geological Survey of Canada
Patrick Houle, Ministère des Ressources naturelles et de la Faune (MRNF)
Known as a major copper and gold producer since the early 1950s, the Chapais-Chibougamau area has experienced a marked decrease in exploration work over the past few years. To help stimulate base metal exploration in struggling mining camps, in winter 2006, Natural Resources Canada, under the supervision of the Geological Survey of Canada, carried out a $1.2 million airborne MEGATEM II survey of the area as part of the federal Targeted Geoscience Initiative (IGC-TGI-3 Abitibi).
The objectives of the survey were:
- To generate new exploration targets to increase private investment in exploration in the area;
- To acquire new knowledge to refine the geological understanding of the various sectors targeted by the survey;
- To continue the partnership with the MRNF ’s Copper Plan;
- To generate economic spinoffs for the area.
In addition, following an analysis of the Chapais-Chibougamau area carried out in cooperation with the MRNF and the industry, four areas of interest were picked for coverage by the 1,700 km2 survey. The primary reasons for selecting these areas were geology favourable for the discovery of base metal deposits (volcanogenic massive sulphide, vein-type Cu-Au and porphyry copper), the presence of nearby mining infrastructure, the little exploration work done, airborne geophysical coverage, and good road access.
The results of the MEGATEM II survey of Chibougamau will be published on July 10, 2006.
Digital profile and gridded data, as well as associated maps in pdf format, can be downloaded free of charge from the Geoscience Data Repository of Natural Resources Canada at http://gdr.nrcan.gc.ca. Digital data and printed maps may also be purchased from the Geophysical Data Centre at:
615 Booth Street, Room 235
Ottawa (Ontario) K1A 0E9
Tel: (613) 995-5326
Fax: (613) 952-8987