Geotechnologies for natural mineral mining and manmade deposit treatment in Еastern Transbaikalia

The results of integrated research into natural and manmade deposits in the Eastern Transbaikal region as objects for physicotechnical and physicochemical geotechnologies are presented. The selected objects are: a) the most important and promising gold and complex ore deposits in Eastern Transbaikalia; b) placers; с) mining waste containing mineral raw materials of special commercial interest, represented mainly by dispersed (nanoscale) gold. The developed integrated method for detecting dispersed gold in ores and in mining waste allows offering new geotechnologies, including processes of explosion-injection preparation with oxidizing reagents; impregnation of ores with activated oxidizing solutions prepared in a photoelectrochemical reactor and pulsation-static and piston sprinkling with activated solutions of complexing agents in flowcharts of heap, cuvette, in-situ leaching and borehole mining, which provides chemogenic destruction of minerals–concentrators of dispersed gold and other valuable elements. The hybrid geotechnology is justified for the Udokan deposit. This technology includes surface mining by small open pits, with heap leaching of low-grade ore on the upper layers of the deposit. In the deeper zone of underground mining, there will be no voids typically formed when high-grade ore is cut by small-size stoping. Mined-out stopes are backfilled with low-grade ore from the open pits, in cyclical-andcontinuous mode, via slot-like ore passes. In this manner, the stopes serve as buffer-andblending reservoirs.

Keywords: deposits, ore deposits, placer deposits, mining and technological waste, dispersed gold, physical and chemical geotechnologies, activated solutions, photoelectrochemical reactor, piston mode of ore irrigation.
For citation:

Sekisov A. G., Rubtsov Yu. I., Lavrov A. Yu., Trubachev A. I. Geotechnologies for natural mineral mining and manmade deposit treatment in Еastern Transbaikalia. MIAB. Mining Inf. Anal. Bull. 2021;(3-2):133-142. [In Russ]. DOI: 10.25018/0236_1493_2021_32_0_133.


The work was carried out within the framework of the FNI project, State registration No.AAAA17 — 117092 7500736.

Issue number: 3
Year: 2021
Page number: 133-142
ISBN: 0236-1493
UDK: 551.1/4 +622 .765 (571.54)
DOI: 10.25018/0236_1493_2021_32_0_133
Article receipt date: 20.11.2020
Date of review receipt: 17.12.2020
Date of the editorial board′s decision on the article′s publishing: 10.02.2021
About authors:

Sekisov A. G., Doct. Dr. Sci. (Eng.), Institute of Mining, Far Eastern Branch of the Russian Academy of Sciences, Khabarovsk, Russia, Honorary Professor, Trans-Baikal State University, Chita, Russia;
Rubtsov Yu. I., Doct. Dr. Sci. (Eng.), Professor of the Trans-Baikal State University, Head of the Laboratory, Chita Branch of the Institute of Mining SB RAS Chita, Russia;
Lavrov A. Yu., Cand. Sci. (Eng.), Dean of the Faculty of Economics and Management of the Trans-Baikal State University, senior researcher Chita Branch of the Institute of Mining SB RAS Chita, Russia;
Trubachev A. I., Cand. Sci. (Geol. Mineral.), Professor of the Trans-Baikal State University, Head of the Laboratory. Chita Branch of the Institute of Mining SB RAS Chita, Russia.


For contacts:

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