Results from the eastern-most hole to date proved to be the highlight of surface drilling by River Gold Mines (TSE) at the Eagle River gold project near Wawa, Ont.
The intersection encountered 69.86 grams gold per tonne (or 16.2 grams cut to 1 oz.) over a true width of 5.8 metres.
“This is the wildest and richest intersection observed to date in the No. 6 zone and helps define a thick east-plunging shoot which remains open at depth,” the company reports.
The 113-hole program was aimed at defining stope limits in the No. 6 and No. 8 zones above an existing drift sitting at a depth of 120 metres. Drilling at the No. 8 zone essentially defined the limits of three known stopes and defined a fourth stope, which will be accessible from existing underground workings.
River Gold plans to place the project into production by August, 1995. President Conrad Hache says the company is attempting to employ a development strategy which involves selective mining of high-grade material. Reserve figures announced by the previous operator (and reported in our Dec. 19/94 issue) were compiled as part of a development strategy based on longhole underground bulk mining, Hache says.
The company is now quoting a reserve estimate (for the
No. 8, 6 and 2 zones) totaling 816,689 tonnes (with a 20% dilution factor) grading 14.1 grams, with the new estimate employing stricter cutoff grades (7 grams), a statistically determined cutting factor (cut to 80 grams) and a 1.5-metre minimum mining width. The current results are from an independent reserve audit by Roscoe Postle Associates of Toronto.
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