Northern Quebec — Recognition of ferruginous alteration zones (gossans), which indicate Ni-Cu mineralization

Mineral/Lithological mapping and identification of marker horizons and recognition of ferruginous alteration zones (gossans) likely to be Ni-Cu mineralization indicators.

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Project Start
Summer of 2002 and 2017
Project Duration
6 and 2 months

Purpose of project conducted for the Canadian Space Agency

  • Mineral/Lithological mapping and identification of marker horizons;
  • Recognition of ferruginous alteration zones (gossans) likely to be Ni-Cu mineralization indicators.

Context

Mandate carried out for the Canadian Space Agency in Northern Quebec. Exploration and mining activities for Ni-Cu were in progress in two study areas, covering a vast territory in a region difficult to access:

  • Raglan mine area, within Cape Smith Belt (in red on the map);
  • Labrador Trough area (in yellow on the map).

Need to identify geological and mining targeting units in a Northern region, including:

● Improving mapping of lithological units and alteration zones;
● Targeting sectors that were favourable for nickel and copper mineralization.

Solution implemented: Remote Mapping

Analyzed images
  • High-resolution hyperspectral images in the case of the Raglan mine area;
  • Multispectral images in the case of the Labrado Trough area
Use of innovative mineral analysis approaches based on:
  • Spectral signature;
  • Texture and geometry parameters;
  • Lithological context.

Results

Cape Smith belt area
Labrador Trough area
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