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Title: PLACER TAILINGS: ?NEW? NANOGOLD AND TECHNOLOGIES OF DEVELOPMENT
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PLACER TAILINGS: ?NEW? NANOGOLD AND TECHNOLOGIES OF DEVELOPMENT
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1314-2704
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English
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20
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6.1
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Large territories in many countries of the world are occupied by tailings after placer gold excavation, including Russia (the Urals, Altai, Yakutia, Chukotka, etc.). The technologies of gold excavation for placers were intended for extraction of the most wide-spread gold grains. As a result, small gold particles were often removed in tailings. Long period of staying of fine gold particles in tailings has been accompanying the process of ?new? metal (secondary gold) origin. Detailed investigations of ?new? gold (growths, aggregates, films, crystals, etc.) with application of high-resolution electron microscopy methods have shown very complicated its structure as different aggregates of nanogold particles. Due to abundance of gold nanoparticles the tailing environment for a long time has been functioning as a natural nanotechnology. The comparison of placer tailings in different regions of Russia gave the opportunity to find a great diversity of conditions for origin of nanogold aggregates there. The results of such comparison may be used for systematization of information, and selection of perspective areas for development of placer tailings. This task may be solved with application of different approaches, such as monitoring of the best conditions for secondary gold origin, additional stimulating of ?new? gold growth, etc. After that the special sampling of perspective objects has to be done.
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conference
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20th International Multidisciplinary Scientific GeoConference SGEM 2020
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20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
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93-100
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18 - 24 August, 2020
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website
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cdrom
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7521
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gold tailings; ?new? nanogold; technologies
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