VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 02/20/13 -- Integra Gold Corp. (TSX VENTURE: ICG) ("Integra" or the "Company") is pleased to announce it has contracted ALS Metallurgy ("ALS") to conduct preliminary (Phase 1) metallurgical studies on mineralized material from its Lamaque Gold Project in Val d'Or, Quebec. Over 255 kg of core from the No. 4 Plug, Triangle Zone, Parallel Zone, and Forestel Zone has been sent to ALS laboratories in Kamloops, BC.
Please see map below for details.
Link to updated project map: http://www.brmstatpack.com/lt/1005/1307/integra-gold-property-zone-map
"Metallurgical testing is another step forward as we continue to aggressively advance and de-risk the Lamaque Gold Project. The Company's next major milestone is an updated resource estimate, expected to be completed in Q2, which will be followed by a PEA. The majority of other studies to be incorporated into the PEA are either underway or set to commence shortly, including an environmental baseline study, a gap analysis, study of operating milling facilities in the area, and preliminary geotechnical studies," commented Company President and CEO, Stephen de Jong. "With over $5 million in hand, the Company is fully financed to move ahead on these objectives and we look forward to an exciting 2013 as we continue to deliver and create value for our shareholders."
A total of 6 composites, each consisting of up to 25 individual core samples, were prepared. Three of the composites are from the Southern Cluster (No. 4 Plug and Triangle Zone) and 3 from the North Cluster (Forestel and Parallel Zones). The weighted average grade of the three composites from each clusters are approximately 3 grams per tonne gold ("g/t Au"), 6 g/t Au, and 15 g/t Au. The sample grades represent, respectively, the estimated cutoff grade, the regional average deposit grade, and the higher grade mineralization. The metallurgical work will include at minimum; grind optimization, mineralogical evaluation, gravity separation, cyanide leach, and possibly flotation testing.
These studies are intended to provide an initial look at the characteristics of mineralization to help guide future optimization test work and processing flow sheet specifications. Optimization work will continue as results are received, the Company does not anticipate disclosing results until completion in Q2-2013.
Results from the metallurgical test work will be an integral part of the information to be used in the upcoming PEA. The Company is in discussions with a number of reputable engineering firms and will provide further details on plans and timing of a PEA in the near future.
Historically, the adjacent Sigma and Lamaque Mines had excellent recoveries, in the mid 90%, and simple flow sheets with conventional milling and CIL techniques used to treat the ore. The company uses this information to guide its ongoing studies due to the geological similarities with mineralization at the Lamaque Project. Little, if any, metallurgical work has been performed on the Company's project in the past, aside from some test mining that Teck undertook in the late 1960s. Teck mined approximately 25,000 ounces of gold, recovered from 145,500 tonnes grading 5.21 g/t Au from Plug No. 4.
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