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As nonferrous metals, lead zinc is the most widely used ore after aluminum and copper. Considering the increasing demands in industry, it is understood that a sustainable mine supply is necessary to meet the Pb-Zn. In this context, the geochemical characteristics of the Erva lead zinc deposit in Yahyali (Kayseri) district were tried to be revealed. The study area, Yahyali district, is located in the Southeast of the Central Anatolia Region. The geological unit in which the Erva is located is the Yahyali Munzur Nap...

The lack of new deposits with a rich copper content and the depletion of old deposits, as well as the need to comply with environmental requirements, raises the issue of the need to process the tailings of metallurgical industries. In Kazakhstan was accumulated significant stocks of tailings "Borgezsay" and "Staroye". The tailings reserves are estimated at up to 1 billion tons. Sample evaluation showed that the average copper content in the tailings is 0.15-0.2%. More than 1 million tons of copper are stored in th...