Radisson drills high-grade gold below O’Brien resource

Drill core from the O'Brien project. Credit: Radisson Mining.

Radisson Mining Resources (TSXV: RDS; US-OTC: RMRDF) has released assay results for hole OB-20-156, drilled within its wholly owned, past-producing O’Brien project in Quebec, which hit high-grade gold, 250 metres below the resource shell.

The drill hole returned 21 metres of 6.89 grams gold per tonne, which includes higher-grade intercepts such as 2 metres of 4.81 grams gold, and 12 metres of 11.32 grams gold. The intercept is from a second known mineralized trend at O’Brien, 600 metres to the east of the historic mine at the site.

Hole OB-20-156 is the deepest hole drilled to date within this second trend and indicates at least three high-grade structures below the resource.

While resources within the area of the most recent drill hole extend down to a depth of 400 metres, the results released on Oct. 14, together with intercepts from recent drill programs, suggest mineralization down to almost 700 vertical metres. The results also indicate the potential for a connection between this latest mineralization with existing high-grade resources, which could form a high-grade trend extending down to depths of 1,100 metres.

Additional assays are pending for wedge holes, as well as for additional holes completed to explore the down-plunge continuity of the mineralization.

Drilling along the first trend at the O’Brien property, 300 metres east of the old mine, has also returned visible gold, 400 metres below the resource limit. Assays are pending for hole OB-20-174, which hit visible gold at a vertical depth of 960 metres.

“Today’s results highlight why our ongoing drilling program is in its most exciting phase, as we continue to systematically step out to expand mineralization at O’Brien along strike and at depth. Assays from OB-20-156 represent some of the best results received since the start of the drill program and suggest the potential to expand resources within the second mineralized trend,” Mario Bouchard, the company’s CEO, said in a statement. “While the majority of our work program has been focused within 1 km along strike to the east of the historic O’Brien mine, we believe there is significantly more upside to be unlocked from a prospective land package that includes more than 5 km of strike length along the prolific Cadillac break.”

To date, Radisson has defined three parallel mineralized trends at O’Brien. These lie 300, 600, and 900 metres east of the past-producing mine. Mineralization within these areas has been traced down to depths of 950 metres. Almost all of the drilling completed at the property to date has covered 1 km of strike.

Radisson is drilling 75,000 metres at O’Brien this year.

Current resources at the project include 950,000 indicated tonnes grading 9.48 grams gold, containing 289,000 oz., with another 617,000 inferred tonnes at 7.31 grams gold, for 145,000 gold ounces.

The past-producing O’Brien project is within the Bousquet-Cadillac mining camp in Quebec’s Larder Lake-Cadillac break. The former O’Brien mine at the site generated 1.2 million tonnes at 15.25 grams gold between 1926 and 1957.

— This article first appeared in the Canadian Mining Journal, part of Glacier Resource Innovation Group.


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