«IZVESTIYA IRKUTSKOGO GOSUDARSTVENNOGO UNIVERSITETA». SERIYA «NAUKI O ZEMLE»
«THE BULLETIN OF IRKUTSK STATE UNIVERSITY». SERIES «EARTH SCIENCES»
ISSN 2073-3402 (Print)

List of issues > Series «Earth Sciences». 2025. Vol 52

Experimental Modelling of Hypergenic Processes as a Method of Geoecological Research on the Example of the Kliuchevskoye Deposit

Author(s)
E. S. Epova
Abstract
The spectrum of mobile elements in the hypergenesis zone of the Kliuchevskoe gold deposit has been determined by experimental modelling methods, and the results obtained have been correlated with the contents in the natural waters of the deposit. Significant transition of As, Ca, Cu, Fe, Pb, Mg, Mn, Zn in the mobile state explains their participation in the formation of hypergene minerals (such as scorodite, malachite, azurite, chalcantite, goethite, cerussite, epsomite, etc.), as well as their inclusion in them as impurities, or isomorphically replacing the main metal. At the Kliuchevskoe deposit the oxidation zone is quite widely developed, which creates conditions for migration of potentially hazardous elements, and high content of heavy metals in natural waters of the deposit testify to intensive oxidation processes at the deposit at present. Comparative analysis of the obtained data showed high similarity in chemical characteristics of model solutions and natural waters at the deposit, which may indicate the legitimacy of the use of experimental modelling of the processes of hypergenic leaching of ores of sulphide deposits as one of the methods of geoecological forecasting of the transformation of natural-technogenic geosystems. Thus, experimental modelling may well serve as one of the methods of geoecological research.
About the Authors
Epova Ekaterina Sergeevna, Candidate of Sciences (Geology and Mineralogy), Junior Scientist, Institute of Natural Resources, Ecology and Cryology SB RAS, 16a, Nedorezova st., Chita, 672014, Russian Federation, e-mail: apikur1@ya.ru
For citation
Epova E.S. Experimental Modelling of Hypergenic Processes as a Method of Geoecological Research on the Example of the Kliuchevskoye Deposit. The Bulletin of Irkutsk State University. Series Earth Sciences, 2025, vol. 52, pp. 97-107. https://doi.org/10.26516/2073-3402.2025.52.97 (in Russian)
Keywords
environmental geochemistry, zone of hypergenesis, sulfide deposits, experimental modeling, geoecological forecasting.
UDC
550.4.02+553.3/.4+502.5 (571.55)
DOI
https://doi.org/10.26516/2073-3402.2025.52.97
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