Detour Lake

Quebec, Canada

Main commodities: Cu Zn Au Ag
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The Detour Lake Archaean volcanic hosted sulphide deposit is located 100 km west of Mattagami in north-west Quebec, Canada.

Estimated resources in 1980 were:
  A1 Zone hypogene mineralisation totalled 32.1 Mt @ 0.39% Cu, 2.3% Zn, 36 g/t Ag, 0.31g/t Au.
  B Zone contained 3.07 Mt @ 4.49% Cu, 0.80% Zn, 39 g/t Ag, 1.2 g/t Au.

The ore occurred in a number of bodies. The A1 deposit was controlled by a series of fractures over a surface area some 400 m in diameter and to a depth of no more than 200 m. The ore was present as a series of laminated veins up to 40 cm thick with quartz, sphalerite, pyrite, chalcopyrite and Ca or Mg carbonate.

The B Zone was 800 m west of A1 and comprised a series of anastomosing quartz-sulphide veins up to 20 cm thick within elongated lenses of mineralisation.

For detail see the reference(s) listed below.

The most recent source geological information used to prepare this summary was dated: 1980.    
This description is a summary from published sources, the chief of which are listed below.
© Copyright Porter GeoConsultancy Pty Ltd.   Unauthorised copying, reproduction, storage or dissemination prohibited.

  References & Additional Information
   Selected References:
Sinclair I G L, Gasparrini E  1980 - Textural features and age of supergene mineralization in the Detour copper-zinc-silver deposit, Quebec: in    Econ. Geol.   v75 pp 470-477

Porter GeoConsultancy Pty Ltd (PorterGeo) provides access to this database at no charge.   It is largely based on scientific papers and reports in the public domain, and was current when the sources consulted were published.   While PorterGeo endeavour to ensure the information was accurate at the time of compilation and subsequent updating, PorterGeo takes no responsibility what-so-ever for inaccurate or out of date data, information or interpretations.

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