The Centipede 1 occurrence is located at an elevation of approximately 1880 metres on a north-northeast–trending ridge, north of Menard Creek and approximately 13 kilometres southeast of the south end of Thorne Lake.
Regionally, the area is cut by a north-trending fault that separates andesitic rocks of the Upper Triassic Savage Mountain Formation (Takla Group) to the west from an undifferentiated package of Upper Triassic volcanics (Takla Group) to the east. Both volcanic packages are represented by aphanitic to porphyritic (feldspar) andesites. The undifferentiated volcanics are cut by a medium-grained gabbro with phenocrysts of plagioclase feldspar and pyroxene. The gabbro may be part of Upper Triassic ultramafic rocks that occur nearby.
The Savage Mountain volcanics are cut by northwest-trending pink porphyritic granodiorite dikes. These dikes contain hornblende and plagioclase phenocrysts in a matrix of quartz, plagioclase and orthoclase. Close to the faults, the matrix is chlorite altered. The dikes terminate against the north-trending fault. A 60-metre pyritic and propylitic envelope exists on either side of the fault. A serpentinite-altered zone is developed around the gabbro intrusion and is more pervasive near the fault. This serpentinization overlaps onto both sides of the fault and is fairly widespread near the mafic intrusion.
Locally, a strongly propylitically altered augite-phyric andesite with shear-hosted quartz-epidote-zeolite veining hosts malachite and azurite coatings. The shear zone strikes 002 degrees with a dip of 55 degrees.
Work History
In 2021, Wedgemount Resources Corp. completed a program of geochemical (rock and soil) sampling and spectral analysis on the area as the regionally extensive Cookie property. A grab sample (D704036) assayed 0.89 per cent copper and 9.1 grams per tonne silver (Assessment Report 40029).