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Composite samples for the talus, saprolite and sulphide material in the East zone yielded more than 95% of their gold after 36 hours under cyanide leach. Upwards of 81% of the gold in the talus sample was liberated by gravity methods alone.
The samples, each of which weighed 250 kg, represent drill chips of reserve circulation holes. The partners are collecting similarly representative samples from core holes to test for grinding and geo-technical characteristics.
Resources in the East zone are pegged at 1.6 million tonnes grading 18.96 grams gold per tonne (T.N.M., April 24/00). A second but separate structure, known as the West zone, hosts 736,678 tonnes grading 2.9 grams.
At the East zone, mineralization is held in three gold-bearing quartz veins, which individually strike for up to 600 metres in length for a combined strike length of 1 km. Overall, the zone extends to a depth of at least 150 metres.
The metallurgical results are being incorporated into an ongoing in-house prefeasibility study, which includes an environmental base-line study. A complete environmental impact study will follow.
Pangea manages and owns a 70% stake in the Tulawaka project, with the remainder held by Minires du Nord.
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