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PLACER TAILINGS: -NEW- NANOGOLD AND TECHNOLOGIES OF DEVELOPMENT

Boris Osovetsky

First published: 2020-09-20https://doi.org/10.5593/sgem2020/6.1/s24.013View metrics

Abstract

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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Publication details

Title
PLACER TAILINGS: -NEW- NANOGOLD AND TECHNOLOGIES OF DEVELOPMENT
Authors
Boris Osovetsky
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Nano, Bio, Green and Space: Technologies for Sustainable Future
Publisher
STEF92 Technology
Year
2020
Pages
93-100
SWS Citekey
Osovetsky20202493100
ISSN
1314-2704
ISBN
978-619-7603-12-5
Language
en
Publication type
Conference Paper
Keywords
gold tailings?new? nanogoldtechnologies
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