The Dekalb 3 occurrence is located at an elevation of approximately 1700 metres on the northwest side of a ridge, east of Quartzrock Creek and approximately 11 kilometres east of the historical community of Cassiar.
Regionally, the area is underlain by cherts, greywacke, greenstones and mafic volcanics of the Upper Paleozoic Sylvester Allochthon (Slide Mountain Complex) and serpentinite ultramafic rocks of the Permian Blue Dome fault zone (Slide Mountain Complex), which are folded and faulted and intruded by a small hornblende-feldspar porphyry stock.
Locally, an altered quartzite(?) with carbonate and pyrite associated with a fracture zone hosts gold values.
In 1981, a rock sample (1427 [DK3 R-G]) assayed 20.7 grams per tonne gold (Assessment Report 10170). In 1983, sampling of the veined zone is reported to have yielded only trace gold and up to 2.5 grams per tonne silver (Assessment Report 12498).
Work History
The area has been explored in conjunction with the nearby Lucky Shot (MINFILE 104P 041) occurrence and a complete exploration history can be found there.