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Multiple Porphyry Copper-Gold Targets
Kay Tanda: Metallurgy
The metallurgical characteristics of the ore are critical to the success of a mining operation. A comprehensive program of metallurgical testing has been embarked on at Kay Tanda. Detailed testing of large diameter drill core with the objective of evaluating heap leach characteristics of both near-surface oxide, and deeper mixed oxide / sulphide containing material was carried out. Samples were collected by large diameter (PQ) core drilling and submitted to Metcon Laboratories in Australia. The program was designed and supervised by an independent metallurgical consultant, Peter J. Lewis and Associates of Australia.
Excellent results were obtained from extensive metallurgical testwork of drill core composites for two different crush sizes from both oxide and mixed (transitional) oxide and sulphide mineralized material. The independent metallurgical consultant noted that "the heap leach results are remarkably good in all cases, with recoveries (of the coarse crush) only approximately 10% below the maximum gold recovery achievable by grinding to a fine size". The results to date indicate that both composites are highly amenable to heap leaching. It appears that most of the gold occurs in the cracks and fissures in the rocks and is readily accessible to the cyanide solution. Gold dissolution is rapid and high gold recoveries have been obtained from both composites, and with low cyanide consumption.
- Kay Tanda: Geology and Mineralization
- Kay Tanda: Exploration Target
- Kay Tanda: NI 43-101 Mineral Resource Estimate