The Windy Lake South occurrence is located at an elevation of approximately 1000 metres on a north-facing slope, south of Windy Lake and approximately 8.5 kilometres north-northwest of the north end of Salmon Lake.
The area is underlain by calc-alkaline volcanic rocks of the Upper Triassic Witch Lake Formation (Takla Group), which have been intruded by Upper Triassic to Lower Jurassic dioritic rocks.
Locally, as defined by diamond drilling, an altered hornblende-plagioclase andesite porphyry and diorite hosts quartz-carbonate fractures with chlorite, epidote, potassium feldspar and hematite alteration minerals. Disseminated pyrite and minor chalcopyrite are also reported.
In 1990, two drillholes (90-1 and 90-2) yielded intercepts of up to 0.115 gram per tonne gold over 14.3 metres in hole 90-1 and 0.132 per cent copper with 0.115 gram per tonne gold over 2.1 metres in hole 90-2 (Assessment Report 21430).
In 1996, a diamond drilling hole (96-01), located approximately 600 metres south of the previous drillholes, yielded 0.190 per cent copper and 0.119 gram per tonne gold over 19.98 metres (33.40 to 53.38 metres down hole; Assessment Report 24751).
Work History
The area has been explored in conjunction with the nearby Windy (MINFILE 093J 024) occurrence and a complete exploration history can be found there.