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

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.

2021 ◽  
Vol 895 (1) ◽  
pp. 012036
Author(s):  
V I Usikov ◽  
Y A Ozaryan

Abstract It is known that nowadays one of the main problems of mining is the depletion of reserves. The researchers consider mining waste as a source of replenishment of the resource base. Disputes on the prospects for technogenic raw material processing are becoming especially relevant. The object of research chosen by the authors in this article is the technogenic neoplasms resulting from dredging and hydraulic processing of placer gold. The paper presents the results of assessing the prospects and application of the information technologies, in particular, the analysis of data from remote sensing of the Earth in the design and organization of work to involve technogenic placers in operation. It is shown that these technologies are able to increase the efficiency of work and reduce labor costs at the stage of preliminary study of potential development targets. Technogenic complexes of depleted fields 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 fields 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.


Author(s):  
I.I. Kovlekov

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.


2018 ◽  
Vol 56 ◽  
pp. 04012
Author(s):  
Irina Kradenykh

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.


2021 ◽  
Vol 40 (2) ◽  
pp. 409-432
Author(s):  
KENNETH G. McQUEEN

The discovery of gold in Australia forced many changes to theory on the occurrence and origin of gold deposits. Initial discoveries appeared to confirm existing ideas on the global distribution of gold-bearing terrains. Later discoveries and research would show that this confirmation was largely coincidental, but nevertheless helpful in early prospecting. Prior to the first Australian gold rush, theoretical predictions of payable gold were made by Sir Roderick Murchison and Rev. W. B. Clarke based on knowledge of accidental gold finds and geological analogy with known areas of significant gold occurrence, particularly the Ural region in Russia. These predictions were overwhelmed when Edward Hargraves, realised he might be able to spark a gold rush that would prove the existence of payable gold. Hargraves travelled to the Bathurst region of New South Wales where numerous gold finds had already been made and with local guides, prospected Lewis Ponds Creek and the Macquarie River. He demonstrated the methods of alluvial mining, to John Lister and William and James Tom enabling them to find sufficient alluvial gold to initiate a gold rush. The crowd of attracted diggers demonstrated the existence of a payable goldfield. The unstoppable first rush resulted in the pragmatic introduction of government regulation and administration to allow alluvial gold mining. Other discoveries of payable goldfields quickly followed. As the local scientific expert on gold, W. B. Clarke was commissioned to conduct two extensive surveys of the goldfields between 1851 and 1853. Clarke also drew on his geological knowledge to provide practical advice to the thousands of prospecting gold diggers. Gold-bearing quartz reefs and lodes were discovered, but it was predicted that these could not be mined economically. Theory also predicted that the reef gold would not continue to depth. Practical observations and mining experience from the numerous discoveries led to revision of the widely held dicta on gold occurrence. Alluvial gold was found in a range of settings, including the recent drainage and ancient and buried leads. A wider variety of rock types was recognised as favourable for gold. Different styles of reef gold were identified and found to be economically mineable to great depth. Evolving ideas on the origin of gold deposits were widely discussed, tested, and refined. Of the many players involved in the early discovery of gold in Australia, Clarke, Hargraves and Murchison probably had the greatest overall influence in terms of theoretical predication and practical outcomes that initiated the Australian gold-mining industry.


2020 ◽  
Vol 2020 (6) ◽  
pp. 222-238
Author(s):  
Irina Kradenyh

The subject of the article is the search for an effective strategic solution in the framework of sustainable development of gold mining enterprises belonging to small and medium-sized mining businesses. The goal of the study is to analyze the problem and the theoretical rationale for the use of horizontal integration for the category of gold mining enterprises, as well as the development of methodological provisions to assess the effectiveness of this strategy in modern conditions. In the process of writing the article the methods of analysis and synthesis within the system approach, mathematical and graphical modeling of economic processes were used. As a result of the study, the processes of development of the gold mining industry, taking into account the state of the mineral resource base of alluvial gold, are revealed. The role of horizontal integration and the expediency of its application within the enterprises belonging to the small and medium mining business are indicated. A methodology has been developed for evaluating the effectiveness of a horizontally integrated gold mining enterprise, taking into account potential synergistic effects, the possibility of diversifying production. The described approaches, at the project stage, will allow to assess the feasibility and effectiveness of the planned consolidation.


2020 ◽  
Vol 192 ◽  
pp. 03013
Author(s):  
Viktor Kryukov ◽  
Irina Kradenykh

The development of regional economy is based on medium and long-term strategies (programs) for economic industrialization. These documents are of a sectoral or integrated nature. Republic of Sakha (Yakutia) and Kamchatka Territory have a scientifically substantiated strategy for the development of the mining industry. Despite its absence in Khabarovsk Territory, subsoil use in recent years has shown a steady growth in mining. The main volume of income comes from gold mining mainly in the northern and central parts of the region. Over the past 10 years, the most economically advantageous and geographically accessible minerals have been identified in the region. These include: coal, gold, platinum, tin, construction materials, groundwater. In the future, it is necessary to plan the development of copper-porphyry, alunite and polymetallic fields. The issues of increasing the resource base of liquid and strategic metals, formation of infrastructure, complexity of the use of mineral wealth and rational use of mineral resources remain problematic. A positive solution to problems is possible when developing and implementing an industry strategy. The basis for its formation is the geological and economic assessment of particular territories of the region.


Author(s):  
V. T. Borisovich ◽  
Z. M. Nazarova ◽  
B. S. Madzhidov

The essence of the gold loan and its role in the formation of the market of the precious metals have been considered. The gold mining companies are stated to be the main users of the borrowed gold. The main uses of the gold loans have been presented, including uses by gold mining companies, for the development of the mining industry and refinancing the debt. The modern problems of the functioning of the market for gold loans have been considered. The role of Central and commercial banks in the development of the market for gold loans has been reflected. The mechanism of the operation of the gold loan has been represented. The benefits of the gold credit for the gold mining industry compared to a conventional loan have been reflected.


2022 ◽  
Vol 962 (1) ◽  
pp. 012023
Author(s):  
M A Latysheva

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.


2020 ◽  
Vol 192 ◽  
pp. 04016
Author(s):  
Victor Litvintsev ◽  
Vitaly Usikov ◽  
Yulia Ozaryan ◽  
Vladimir Alekseev

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.


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