According to Redfern Resources, (VSE), which owns 40% of the former producer, Tulsequah Chief has a calculated reserve of 2.4 million tons (in all categories) grading 2.03% copper, 1.25% lead, 6.28% zinc, 0.075 oz gold and 2.68 oz silver per ton.
As operator and 60%-owner, Cominco plans to carry out 6,000 ft of new tunnelling to provide a drill station well into the hangingwall volcanics to allow further deep drilling of the massive sulphide system.
This work is expected to be finished near the end of July, with drilling targeted to extend intercepts to a depth of 1,000 ft below the deepest level tested by the 1987 and 1988 programs.
The objective is to further expand reserves to warrant re-opening the mine. According to Redfern, a deposit of about 3-4 million tons could be economically viable.
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