Previous work consisted of 9,300 meters of drilling in 57 holes and 1,000 meters of exploratory underground workings. Work conducted by the Company consisted of geological, geophysical and geochemical studies, 4,600 meters of drilling in 17 holes, and several hundred meters of tunneling that is still in progress.
The independent NI 43-101 indicated mineral resource estimated by SRK Consulting is 1.86 million tonnes containing 2.62% copper, 3.83% lead, 5.80% zinc, 38 grams per tonne of silver and 0.48 gpt gold.
A plan map of the subsurface ore zone (1300k)can be downloaded here. The map was made at 1:1,000 scale and is best printed on large paper. It also shows topography, farmhouses, roads, foot trails and power distribution lines.
The main ore minerals are chalcopyrite, galena, black sphalerite, tetrahedrite, native silver and gold, accompanied by pyrrhotite and arsenopyrite. Pyrite, chalcocite, cubanite, marcasite, molybdenite, stibnite and bornite also occur in minor amounts. Within the mineralised body there are distinct copper-rich and zinc-lead-rich zones that vary independent of each other.
The sulfide minerals are fine-grained and irregular. Grinding hardness is moderate and flotation recovery improves with fine grinding. Density of typical mineralisation is 3.2 to 3.4 tonnes per cubic metre.
Previous drilling did not reach deep enough to find the base of the deposit. Nor did drilling determine the extent along strike to the northwest nor at some distance to the southeast where subsequent work found several electromagnetic anomalies.
|Mining Engineer Barun Kumar underground
in the 985 level at Askot during
rehabilitation work in 2004
(updated June 17, 2009)