NUNAVUT – Continued bench scale metallurgical tests on material from the Back River gold project have boosted gold recovery to 93.9% from 88.0%. The advanced exploration project is located in the West Kitikmeot region and owned by Sabina Gold & Silver Corp. of Vancouver.
Rob Pease, president and CEO, said in a release, “The results confirm that the gold at Back River is free milling by conventional cyanide leaching at reasonable grind sizes. We believe that the improved recoveries in combination with our increased mineral resource estimate, are solid foundations on which to build our feasibility study. Additionally, we continue to make progress on optimization studies, which could present other opportunities to further refine the project.”
The prefeasibility study for Back River proposed a flowsheet including conventional crushing and grinding, gravity concentration, a carbon-in-leach circuit, and pouring of gold doré.
The February 2014 mineral resource estimate includes 28.35 million measured and indicated tonnes at 5.81 g/t Au and containing 5.30 million oz of gold. There is also an inferred resource at 8.18 million tonnes grading 7.33 g/t Au and containing 1.93 million oz of gold.
There are three deposits (Umwelt, Llama and Goose) on the Goose property, part of the Back River project. Most of the known gold mineralization is associated with quartz veins, silicification and shearing within silicified and variably sulphidized iron formation.
Learn more at SabinaGoldSilver.com.