Underground drilling by Aurizon Mines (ARZ-T) has confirmed the grade and continuity of the 113 zone at the Casa Berardi gold project, 100 km north of Rouyn-Noranda, Que.
Results are in for 22 of 40 holes sunk from an exploration drift currently being developed on the 550-metre level. So far, Aurizon has developed 192 metres of the planned 450-metre drift from the base of the past producing West Mine’s recently deepened main ramp.
Highlights include:
- Hole U173 13.8 grams gold per tonne over 39 metres;
- Hole U177 7.5 metres of 14.4 grams gold;
- Hole U301 6 metres of 15.4 grams gold;
- Hole U304 44.7 metres grading 7.3 grams gold;
- Hole U312 16.3 metres running 13.8 grams gold; and
- Hole U403 8.5 metres averaging 32.6 grams gold.
The remaining holes generally contain 2-10 grams gold over widths from 6-20 metres. The drilling was done on four separate vertical sections, and included vertical fan holes. All of the holes encountered a 40-to-70-metre wide mineralized corridor adjacent to the Casa Berardi fault, through which they passed.
Previous deep surface holes in the immediate area returned 3.2-6.5 uncut grams over core lengths from 5-50 metres.
Gold mineralization is associated with, but not limited to, large quartz veins and associated hanging wall stockwork. The veins are oblique to the 0.15-0.2-metre wide Casa Berardi fault.
Development of the exploration drift continues, and Aurizon plans to collect a bulk sample from 113 zone.
Aurizon also says that chip and muck sampling in a crosscut 10 metes east of previously sunk hole no. U168 has confirmed grads in that hole (up to 6.2 grams over 10 metres in high-grade quartz). Chip samples of the same material yielded 11.5 grams gold; muck samples 10.1 grams. Disseminated sulphide, vein stock work and lower grade quartz surrendered grades of around 1-3 grams gold.
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