Gold mineralization of the sulphidepreview lakes area, la ronge belt

Canadian Institute of Mining, Metallurgy and Petroleum
Kieran M. J. Downes Robert S. G. Chapman
Organization:
Canadian Institute of Mining, Metallurgy and Petroleum
Pages:
1
File Size:
167 KB
Publication Date:
Jan 1, 1986

Abstract

The Sulphide-Preview Lakes area is located 45 km northeast of La Ronge in northern Saskatchewan. It lies within the southern portion of the Proterozoic La Ronge Volcanic-Sedimentary Belt. Two styles of gold mineralization are present in the Sulphide Lake area , stratabound gold mineralization is intimately associated with a pyrite-pyrrhotite-arsenopyrite-bearing graphitic argillite unit within a sequence of intermediate to felsic volcaniclastics. Past operators established three mineralized zones along this horizon with combined reserves for two of the zones, of about 175,000 tons at 0.22 oz/ton Au. In the Preview Lake area , gold mineralization occurs in variably sheared gabbro/quartz diorite sills within a mixed sedimentary-felsic volcaniclastic sequence. Gold occurs with arsenopyrite, pyrite and minor chalcopyrite associated with quartz veins and stringers. A sulphidebearing graphitic argillite unit occurs in close proximity to the mineralized shears. Past operators delineated seven mineralized shear zones, two of which were drilltested. Average gold grades reported are in the 0.1 to 0.2 oz/ton range with erratic values up to 5.0 oz/ton.
Citation

APA: Kieran M. J. Downes Robert S. G. Chapman  (1986)  Gold mineralization of the sulphidepreview lakes area, la ronge belt

MLA: Kieran M. J. Downes Robert S. G. Chapman Gold mineralization of the sulphidepreview lakes area, la ronge belt. Canadian Institute of Mining, Metallurgy and Petroleum, 1986.

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