Copper and Zinc Commodities, Capstone Mining Corp. announced additional high grade intercepts from drilling on its high grade Kutcho Copper-Zinc Project. As previously reported, the current drill program is following up on a recommendation in the Preliminary Economic Assessment ("PEA") announced on July 13, 2010 to increase the confidence in approximately 1.1 million tonnes of inferred mineral resources in the Esso deposit as part of an initiative to advance the project to a pre-feasibility study. Highlights for the latest holes are summarized below, while full results are attached. In situ copper equivalent grades are provided for illustrative purposes, based on the metal prices assumed in the PEA. Results for previous holes were announced in August and September.
The analytical method for the copper and silver analyses is aqua regia digestion of the samples followed by atomic absorption spectroscopy. Gold is analysed by fire assay fusion with atomic absorption spectroscopy finish for gold. Analyses are carried out by ALS CHEMEX in North Vancouver. When visible gold is noted in drill core samples or regular fire assay values appear abnormally high, the pulp and screen metallic assay method is used to determine the total gold content and gold contents of different size fractions. This is considered industry best practice when dealing with coarse gold mineralization where a nugget effect is suspected. This determination is accepted as the most representative value and is used in the assay database for mineral resource calculations. Blank and standard samples are used for quality assurance and quality control. Where more than two check samples assay outside expected ranges, the entire batch is re-assayed. After the completion of planned drill programs at Kutcho, random check assays will be carried out by Acme Analytical of Vancouver.
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» Capstone Announced Commodities Copper-Zinc High from Kutcho Project
Capstone Announced Commodities Copper-Zinc High from Kutcho Project
Written By mine on Senin, 27 September 2010 | 05.47
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