Gold mineralization of the sulphidepreview lakes area, la ronge belt

- 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:
(1986) Gold mineralization of the sulphidepreview lakes area, la ronge beltMLA: Gold mineralization of the sulphidepreview lakes area, la ronge belt. Canadian Institute of Mining, Metallurgy and Petroleum, 1986.