| Issue |
E3S Web Conf.
Volume 56, 2018
VII International Scientific Conference “Problems of Complex Development of Georesources” (PCDG 2018)
|
|
|---|---|---|
| Article Number | 01004 | |
| Number of page(s) | 6 | |
| Section | Geotechnological Problems of Development of Subsoil | |
| DOI | https://doi.org/10.1051/e3sconf/20185601004 | |
| Published online | 26 September 2018 | |
Main factors determining potential qualified appearance of pebble and effel dumps of depleted alluvial gold deposits
1
Mining Institute of Far eastern branch of Russian Academy of Sciences, Khabarovsk, Russia.
2
“SPC Kompas-Geoservis”, LLC, Khabarovsk, Russia
3
FSBIS “Institute of Water and Environmental Problems”, Far East Division of Russian Academy of Sciences, Khabarovsk, Russia
* Corresponding author: mgs_gold@mail.ru
The influence of two most important factors determining gold losses during mining of alluvial deposits is considered. They include the granulometric composition of sands and the initial gold content in them. It is shown that the underestimation of these indicators in the assessment of anthropogenic deposits significantly reduces the resource attractiveness of depleted objects. Specific examples give calculations that allow for a more accurate predictive estimate of the resource potential of the dredging tailing (effel) dumps. Based on the consideration of natural and climatic factors in determining the conditions, the placer content is plotted for the gold content in the sands of various economic areas of Khabarovsk Region. It has been established that at the same values of the designed process loss and given the comparability of the main placer parameters, a high average gold content in the initial sands makes it possible to predict within the dump some objects with standard contents.
Key words: Alluvial deposits / Factors / Gold losses / Dumps / Conditions / Effel / Sand composition / Initial contents
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.