Forward Appraisal of Potential Gold Content of Dredge and Sluice Tailings Dumps at Placers in Russia’s Far East
G. S. Mirzekhanov1, Z. G. Mirzekhanova2
1Institute of Mining, Far East Branch, Russian Academy of Sciences, Khabarovsk, Russia
2Institute of Water and Ecology Problems, Far East Branch, Russian Academy of Sciences, Khabarovsk, Russia
Keywords: россыпные месторождения, гале-эфельные отвалы, потери золота, ресурсы, кондиции, исходное содержание, placer, dredge and sluice tailings dumps, gold loss, resources, quality standards, initial content
Abstract
A brief appraisal of probable gold in dredge and sluice tailings dumps at placers in Russia’s Far East is given. In terms of mining waste piles and operating placer mines in the Khabarovsk Territory, Jewish Autonomous Province, Amur and Magadan Regions, a probable gold content of dredge and sluice tailings dumps is predicted. The calculation used different combinations of estimation parameters: loss, initial gold content, fineness of gold sand. It is shown that the probable gold content varies quantitatively and qualitatively as function of combination of the estimation parameters. The tough, optimistic, realistic and unrealistic scenarios of prospects for secondary gold extraction from dredge and sluice tailings are presented.
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