Deep drilling by
Hole 99-01A intersected 62 metres of the favourable mine sequence, within which four separate lenses averaged:
- 2.11% copper, 1.4% zinc, 0.093% cobalt and 17.14 grams silver per tonne over 1.55 metres (from 1,158.4 to 1,159.95 metres);
- 1.71% copper, 0.46% zinc, 0.037% cobalt and 11.66 grams silver over 1 metre (from 1,1161 to 1,1162 metres);
- 1.26% copper, 1.18% zinc, 0.036% cobalt and 9.94 grams silver over 1 metre (1,165.2-1,1166.2 metres); and
- 1.96% copper, 3.18% zinc, 0.085% cobalt and 18.17 grams silver over 7.82 metres (1,171.9-1,179.72 metres).
The latest hole was collared to test the horizon below hole 98-01, which, until now, was the deepest hole drilled. That hole hit one lens measuring 7.75 metres in length (605-612.75 metres) and averaging 5.34% copper, 3.24% zinc and 0.067% cobalt. The Potter deposit was mined from 1967 until 1971, when low copper prices forced the operation to close.
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