scholarly journals Development of placer deposits in the North using highwall mining systems

2021 ◽  
pp. 84-89
Author(s):  
I.I. Kovlekov
Keyword(s):  
Technology Implementation ◽  
Unit Cost ◽  
Mining Industry ◽  
Precious Metals ◽  
Climatic Conditions ◽  
The Arctic ◽  
Practical Case ◽  
Resource Base ◽  
Highwall Mining ◽  
Placer Deposits

The article studies various aspects of the highwall mining systems applicability for the development of productive sands in terms of the occurrence conditions as well as the mining and technical parameters of placer deposits. The harsh climatic conditions of the Arctic zone and the specific properties of frozen sands impose additional requirements on the operation of the mining complex. Positive and negative aspects of the practical application of mining complexes been analysed with reference to the development of precious metals and gemstones deposits. The most promising mining sites have been identified, where the use of highwall mining systems is technologically and economically feasible. Commercial mining of reserves in the boundary zones in high walls of depleted fields and in thin unconventional seams will substantially expand the mineral resource base of mining companies. A promising trend of this technology development is discussed that includes backfilling of the mined-out space in order to reduce the loss of mineral resources. The ice-rock mixture is proposed as the backfill material, which significantly reduces the unit cost of these operations. A practical case of this technology implementation is described for the development of substandard sands of a placer deposit in the Far North conditions. The possibility of developing the reserves of tin placer deposits on the Arctic shelf using the highwall mining systems has been identified as the most promising direction of scientific and practical research for the development of the mining industry in the region.

scholarly journals Innovative methods of extracting the loose gold from technogenic deposits in the Irkutsk region

2018 ◽  
Vol 212 ◽  
pp. 01016
Author(s):  
Elena Golovina ◽  
Anastasia Dykusova ◽  
Maxim Zhizhelev
Keyword(s):  
Mineral Resource ◽  
Gold Mining ◽  
Mining Industry ◽  
Precious Metals ◽  
Gold Deposits ◽  
Resource Base ◽  
Processing Technologies ◽  
Irkutsk Region ◽  
Equipment Modernization ◽  
Production Capacities

In Russia and abroad, the scope of the use of gold has significantly expanded, which undoubtedly affected the level of production. However, despite the fairly high rates of gold mining, the economic situation that has developed in recent years makes the companies look for new innovative placer processing technologies that will allow preserving and increasing the extraction of the precious metals. The search for and exploration of new placer gold deposits requires very considerable financial resources and time, and therefore the proposed project for the extraction of alluvial gold from technogenic deposits is of great importance for the functioning of the mining industry of the Irkutsk region, since it helps to overcome at least two negative trends: firstly, the deterioration of the mineral resource base, and secondly, large losses of gold with dump products (up to 50%) associated with the use of obsolete washing equipment. Modernization of production capacities and processing technologies is not only one of the main factors for increasing competitiveness in the gold mining industry and attracting investors, but will also help increasing the mineral resource base of the Irkutsk region by reassessing technogenic deposits, setting gold technogenic deposits on the balance, development of technologies for technogenic deposits and processing, and involvement of technogenic deposits in the mass processing.

scholarly journals Consolidation of small and medium mining business in the gold mining industry of the Russian Far East

2018 ◽  
Vol 56 ◽  
pp. 04012
Author(s):  
Irina Kradenykh
Keyword(s):  
Gold Mining ◽  
Russian Far East ◽  
Far East ◽  
Mining Industry ◽  
Economic Activities ◽  
Resource Base ◽  
Mining Companies ◽  
Russian Economy ◽  
Placer Deposits ◽  
The Russian Far East

The gold mining industry of the Russian Far East has a great development potential, whose economic growth largely depends on the efficiency of developing a unique mineral resource base. To do this, it is necessary to solve a number of tasks, including the management and organization of economic activities of enterprises engaged in the extraction of placer gold in medium and small volumes. Gold mining companies themselves positively assess the prospects for the development of the industry, despite the preservation of external restrictions imposed by Western countries. At the same time, the current position of the modern gold mining industry is determined not only by the state of the Russian economy, but also by a number of branch features related to the management of gold mining at the enterprise level. At the present time, there are increasing questions about the feasibility of consolidation of small and medium mining enterprises, which will allow them to overcome current trends in the economic development of the industry, by combining their own resources. At the same time, in practice, reverse phenomena are observed, indicating that the industry is segmented and the number of mining companies developing placer deposits is gradually increasing. However, consolidation processes, in the form of integration associations, represent one of the directions of development and effective functioning of Russian gold mining enterprises, therefore they require comprehensive research and remain relevant.

scholarly journals Metalliferous conglomerates — potential sources of placers in the Arctic zone of Russia

2021 ◽  
Vol 11 (2) ◽  
pp. 232-243
Author(s):  
A.V. Volkov ◽  
◽  
A.L. Galyamov ◽  
A.V. Lalomov ◽  
K.V. Lobanov ◽  
...  
Keyword(s):  
Mineral Resource ◽  
Kola Peninsula ◽  
Mineral Composition ◽  
Metal Content ◽  
The Arctic ◽  
Arctic Zone ◽  
Resource Base ◽  
Potential Sources ◽  
Anabar Shield ◽  
Placer Deposits

Using the example of four large regions of the Arctic zone of Russia, the authors show the wide development of potentially metalliferous conglomerates of various ages, composition, stratigraphic and structural positions. Information on the metal content of the Precambrian conglomerates of the Kola Peninsula and the Anabar Shield is extremely limited. The metal content of the Precambrian conglomerates is well studied only in the Vetreny Belt in the Arkhangelsk Region. The revealed geochemical features reflect the lithological and mineral composition of the conglomerates. Small and medium-scale industrial placers of gold and platinum, other strategic minerals and their placers mark the areas of the Paleozoic and Mesozoic conglomerates within the Taimyr-Severozemelskaya Province and in the Pekulney-Zolotogorsky district of Eastern Chukotka. The authors indicate the prospects for the development of the mineral resource base of placer deposits.

scholarly journals ECONOMIC ASPECTS OF PRODUCTION OF USEFUL FOSSILS IN THE ARCTIC ZONE OF THE RUSSIAN FEDERATION

2021 ◽  
Vol 2 (71) ◽  
pp. 22-28
Author(s):  
N. Veretennikov ◽  
R. Leontiev
Keyword(s):  
Russian Federation ◽  
Industrial Development ◽  
Mining Industry ◽  
Precious Metals ◽  
The Arctic ◽  
Economic Aspects ◽  
Arctic Zone ◽  
Social Sphere ◽  
Arctic Regions ◽  
The Russian Federation

The article analyzes the economic aspects of mining in the Arctic zone of the Russian Federation (AZRF) on the example of industrial development of deposits of precious metals (gold, platinum and silver). The role of the mining industry in the development of the economy and social sphere of the Arctic regions is revealed.

scholarly journals Current state, prospects and problems of the gold mining industry of the Trans-Baikal Territory

2022 ◽  
Vol 962 (1) ◽  
pp. 012023
Author(s):  
M A Latysheva
Keyword(s):  
Gold Mining ◽  
Negative Impact ◽  
Mining Industry ◽  
Precious Metals ◽  
Environmental Damage ◽  
Production Volume ◽  
Total Production ◽  
Placer Gold ◽  
Current State ◽  
Placer Deposits

Abstract The article considers the current state, problems and prospects of gold mining in the Trans-Baikal Territory. There has been an increase in the volume of gold production from ore and placer deposits over the past 5 years. Placer deposits make up a significant part of the total production volume. The reduction of reserves in placers and the decrease in the quality of minerals in them open up new prospects for the extraction of precious metals, namely in ore gold mining. The extraction of placer gold, even with the best existing technologies, remains a sector of high environmental risk, in many settlements there is a gradual decline in the population and the “extinction” of settlements, as well as illegal gold mining is gaining momentum. Neither regional nor federal environmental supervision bodies have the opportunity to resist the destruction and degradation of nature from the extraction of placer gold. In general, this leads to an increase in the negative impact of placer gold mining on natural complexes and socio-economic sustainable development of regions and municipalities on the territory of which this type of activity is carried out, an increase in accumulated environmental damage.

scholarly journals Methodology of complex evaluation of energy transportation systems from remote renewable resources

2021 ◽  
Vol 289 ◽  
pp. 05003
Author(s):  
Oleg Baldynov ◽  
Sergei Popov
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Renewable Resources ◽  
Renewable Energy Sources ◽  
Unit Cost ◽  
Primary Energy ◽  
Transportation Systems ◽  
Climatic Conditions ◽  
The Arctic ◽  
Energy Transportation

In the last two decades, the unit cost of so-called “new” renewable energy sources has shown a significant decline: photovoltaic panels and wind turbine generators, which is the main reason for the increase in the share of RES in primary energy consumption. However, regions with suitable natural and climatic conditions for the development of renewable energy aren’t in a generally densely populated and located at a significant geographical distance from the centers of energy consumption (the level of solar insolation in the Gobi and Atacama deserts, wind speed on the coasts of the Arctic Ocean and the Pacific Oceans, etc.). Anticipating a significant development of the need for the use of renewable energy, it is necessary to perform preliminarily a complex of evaluation of energy transportation systems from remote renewable resources.

scholarly journals Assessment of reserves and resources of technogenic complexes of gold-bearing deposits using remote sensing methods on the example of the Kerbinsky gold-bearing region (Khabarovsk Region)

2020 ◽  
Vol 192 ◽  
pp. 04016
Author(s):  
Victor Litvintsev ◽  
Vitaly Usikov ◽  
Yulia Ozaryan ◽  
Vladimir Alekseev
Keyword(s):  
Remote Sensing ◽  
Mineral Resource ◽  
Precious Metals ◽  
Expert Assessment ◽  
Resource Base ◽  
Alluvial Deposits ◽  
Geological Information ◽  
Placer Deposits ◽  
Remote Sensing Methods ◽  
Gold Bearing

Technogenic complexes of placer deposits, the development of which has been completed, are a significant reserve of the mineral resource base of gold and other precious metals. This paper presents the results of the creation of a method for expert assessment of spatial and volumetric indicators of technogenic complexes of alluvial deposits and other landscape objects using remote sensing of the territory and analysis of geological information. The Kerbinsky gold-bearing region of the Khabarovsk Region was chosen as the object of research.

scholarly journals Paleocene-Eocene volcanic segmentation of the Norwegian-Greenland seaway reorganized high-latitude ocean circulation

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Jussi Hovikoski ◽  
Michael B. W. Fyhn ◽  
Henrik Nøhr-Hansen ◽  
John R. Hopper ◽  
Steven Andrews ◽  
...  
Keyword(s):  
Ocean Circulation ◽  
High Latitude ◽  
Seismic Reflection ◽  
Arctic Region ◽  
Climatic Conditions ◽  
The Arctic ◽  
Early Eocene ◽  
Subaerial Exposure ◽  
Thermal Maximum ◽  
Volcanic Facies

AbstractThe paleoenvironmental and paleogeographic development of the Norwegian–Greenland seaway remains poorly understood, despite its importance for the oceanographic and climatic conditions of the Paleocene–Eocene greenhouse world. Here we present analyses of the sedimentological and paleontological characteristics of Paleocene–Eocene deposits (between 63 and 47 million years old) in northeast Greenland, and investigate key unconformities and volcanic facies observed through seismic reflection imaging in offshore basins. We identify Paleocene–Eocene uplift that culminated in widespread regression, volcanism, and subaerial exposure during the Ypresian. We reconstruct the paleogeography of the northeast Atlantic–Arctic region and propose that this uplift led to fragmentation of the Norwegian–Greenland seaway during this period. We suggest that the seaway became severely restricted between about 56 and 53 million years ago, effectively isolating the Arctic from the Atlantic ocean during the Paleocene–Eocene thermal maximum and the early Eocene.

scholarly journals High-time resolved radon-progeny measurements in the Arctic region (Svalbard Islands, Norway): results and potentialities

2017 ◽  
Author(s):  
Roberto Salzano ◽  
Antonello Pasini ◽  
Antonietta Ianniello ◽  
Mauro Mazzola ◽  
Rita Traversi ◽  
...  
Keyword(s):  
Limit Of Detection ◽  
Atmospheric Stability ◽  
Arctic Region ◽  
Climatic Conditions ◽  
The Arctic ◽  
Radon Emanation ◽  
Radon Progeny ◽  
Time Resolved ◽  
Scientific Challenge ◽  
The Arctic Region

Abstract. The estimation of radon progeny in the Arctic region represents a scientific challenge due to the required low limit of detection in consideration of the limited radon emanation associated with permafrost dynamics. This preliminary study highlighted, for the first time, the possibility to monitor radon progeny in the Arctic region with a higher time resolution. The composition of the radon progeny offered the opportunity to identify air masses dominated by long-range transport, in presence or not of near-constant radon progeny instead of long and short lived progenies. Furthermore, the different ratio between radon and thoron progenies evidenced the contributions of local emissions and atmospheric stability. Two different emanation periods were defined in accordance to the permafrost dynamics at the ground and several accumulation windows were recognized coherently to the meteo-climatic conditions occurring at the study site.

Mineral resources of the Vorkuta region and the prospects of their development

2021 ◽  
Vol 3 ◽  
pp. 65-74
Author(s):  
S.K. Kuznetsov ◽  
◽  
I.N. Burtsev ◽  
M.B. Tarbaev ◽  
N.N. Timonina ◽  
...  
Keyword(s):  
Mineral Resource ◽  
Oil And Gas ◽  
Komi Republic ◽  
Transport Infrastructure ◽  
The Arctic ◽  
Western Slope ◽  
Resource Base ◽  
Sea Transport ◽  
Coking Coal ◽  
Coal Deposits

The analysis of the state and prospects for the development of the mineral resource base of the Vorkuta region of the Komi Republic, belonging to the Arctic zone, was carried out. It is shown that the coking coal deposits of the Pechora basin, the development of which is the basis for the existence of the city of Vorkuta, were and still are the most impor-tant ones. The reserves of coking coal are significant, however, the supply of them to operating mining enterprises is becoming more and more limited. To maintain and develop coal mining, it is necessary to build new mines. Along with the coal deposits, the Vorkuta region is of great interest in relation to other minerals. In the Kosyu-Rogovsk and Koro-taikha depressions, there are potential oil and gas-bearing structures, on the western slope of the Polar Urals – barite deposits, gold, chromium and copper occurrences, deserving further geological study and prospecting works. For a more complete disclosure and development of the mineral resource potential of the Vorkuta region, the extension of transport infrastructure is of great importance. The implementation of plans for the construction of railways, access to the Northern Sea Route, can contribute, in particular, to increasing the volume of coal production and wider supplies of coal using sea transport, and raising the investment attractiveness of the Arctic territories.

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