CONTENTS № 1/2022
GEOLOGY & METHODICS OF PROSPECT & EXPLORATION OF DEPOSITS
Do M.F. (MGRI-RGGRU), (Geophysical Department of the General Directorate of Geology and Mineral Resources of Vietnam 1, Chienthang, Van Kuan, Khadong, Hanoi 100000, Vietnam) //email@example.com
Fan T.H. (MGRI-RGGRU) // firstname.lastname@example.org
Ignatov P.A.(MGRI-RGGRU) // email@example.com
REGULARITIES OF LOCALIZATION OF GOLD-COPPER AND URANIUM MINERALIZATION IN THE KONRA REGION, CENTRAL VIETNAM
The regularities of localization of gold-copper and uranium mineralizations formed in the Proterozoic-Precambrian metamorphic complex in the exoskarn zone of the Triassic Haivan granite block were revealed. Geological and geophysical materials, the results of the study of the material composition of the ores in 42 thin sections and the distribution of useful components according to ICP MS analyzes of 214 samples, atomic absorption 300 samples and gamma spectrometry of 42 samples were used. It has been established that ore mineralization is represented by gold-bearing primary sulfide and oxide ores. Gold-copper mineralization is found in exoskarns, complicated by plate-like apophyses of granites. Its model age is Triassic. Based on the results of geological mapping, observations in outcrops and cores of appraisal wells, and stereographic analysis of teratonic fractures, the ore-bearing structure of Au-Cu ore occurrence in the form of a steeply dipping pull-apart zone of a right reverse fault is substantiated. Uranium mineralization is represented by lenses and sockets. It is spatially related to felsic dikes of the Jurassic age, which have a radiogeochemical specialization, and is accompanied by quartz-sericite metasomatites.
Keywords: copper, gold, uranium, ore manifestation, fault, pull-apart zone, tectonic breccia, exoskarn, granite apophyses, dike
Lyashenko V.I. (State Enterprise «Ukrainian Science-Preceding and Design and Development Institute of Industrial Technology», Zhovti Vody, Ukraine) // firstname.lastname@example.org
Dudar T.V. (Department of Environmental Studies of National Aviation University, Kyiv, Ukraine) // email@example.com
Khomenko O.E. (National Technical University «Dniprovska Polytechnic», Dnipro, Ukraine) // firstname.lastname@example.org
Topolnyy F.F. (State Higher Educational Institution «Central Ukrainian National Technical University», Kropyvnytskyi, Ukraine) // email@example.com
URANIUM MINING FOR ATOMIC ENERGY NEEDS
The article presents the main results of the analysis of the current state of production and the market of uranium raw materials over the past 10 years. It is shown that the current state of the production and processing of uranium raw materials is sufficient to meet the needs for nuclear fuel in the short term. World uranium production peaked in 2016 and amounted to more than 62 thousand tons. But in 2018–2020, the production of this raw material declined due to the current low price of uranium and market instability in the world. It is predicted that in the long term, additional investments will be required to improve technologies for the extraction and development of dormant deposits with an increase in demand for uranium. It was noted that the public in many countries resists and doubts the advisability of investing in nuclear energy on the one hand, and on the other, skepticism about the development of the mining industry in general is growing. It is planned to focus further research on attracting geoinformation technologies to enhance the ecological component of mining and processing processes, including assessing the long-term impact on the surrounding territories, land degradation, changes in landscape cover, etc.
Keywords: uranium raw materials, uranium deposits, uranium mining and consumption, environmental safety
|УДК 550.81: 551.432.26
Dotsenko V.V. (Academy of Sciences of the Chechen Republic), (South Federal University) // firstname.lastname@example.org
Kerimov I.A. (Academy of Sciences of the Chechen Republic) , (Institute of the History of Natural Science and Tech-nology named after S.I. Vavilov Russian Academy of Sciences) // email@example.com
Bachaeva T.Kh.(Complex Research Institute named after H.I. Ibragimov Russian Academy of Sciences, Grozny State Oil Technical Uni-versity named after acad. M.D. Millionshchikova) // firstname.lastname@example.org
GEOLOGICAL AND GEOMORPHOLOGICAL CHARACTERISTICS OF THE GEKHINSKY TRANSVERSAL RISE OF THE EASTERN CAUCASUS, ITS STRUCTURAL-FORMING ROLE AND SIGNIFICANCE FOR OIL AND GAS POTENTIAL
Geological and geomorphological features of the Gekhinsky transverse uplift are given. Its structure-forming role on the border of the Prikazbek tectonic region and Limestone Dagestan and its possible significance for the oil and gas content of the promising newest local uplifts identified within the ledge are indicated.
Keywords: transverse uplift, morphostructure, local recent uplifts, tectonic depression, oil and gas potential, promising exploration targets
Isaev V.I. ( Tomsk Polytechnic University) // email@example.com
Lobova G. ( independent expert, Lithuania) // firstname.lastname@example.org
Merenkova A.S. ( Tomsk Polytechnic University) // email@example.com
Osipova E.N. ( Tomsk Polytechnic University) // firstname.lastname@example.org
HEAT FLOW, FOCALS OF OIL GENERATION, AND ZONING OF THE DOYURSKY COMPLEX OF THE BAKCHAR MESOFALL AND ITS FRAMING (SOUTHEAST OF WESTERN SIBERIA)
Paleotemperature modeling was carried out in the section of 30 deep wells, mapping of the Togur oil generation sources was carried out. The sources have been working during the last 92 million years. The zonal regionalization map of the weathering crust reservoir (the layer M) has been constructed. The generation potential implementation of the parent suite, volumetric characteristics and predicted reservoir properties were taken into account. The zone of junction of the Bakcharskaya mezodepression and the Parabel megamonoklin is proposed as a priority area for prospecting work.
Keywords: paleotemperature modeling, togur oil, weathering crust reservoir, regionalization, Bakchar mezodepression.
Neradovskiy L.G. (Melnikov Permafrost Institute SB RAS) // email@example.com
ENGINEERING CHARACTERIZATION OF GEOLOGICAL FEATURES IN FROZEN SEDIMENTARY ROCKS USING GROUND PENETRATING RADAR, NERYUNGRI, SOUTHERN YAKUTIA
This paper discusses the results of ground penetrating radar (GPR) profiling of frozen sedimentary rocks in the city of Neryungri. The study area is known to contain a 620-m wide fault zone and its 200-m wide extension to the east with vertically riented fracture and disintegration structures of tectonic origin. The systematic pattern of fractures spaced at 156–109 m to 1,8–0,4 m apart is of scientific interest. This pattern is evident not only in relatively intact, hard limestone below 8–10 m depth, but also in a 3–4 m layer of ice-rich limestone scree and residuum strongly disturbed by physical weathering and cryogenic metamorphism. By hierarchical ranking of structural discontinuities, the western zone of limestone weakening is characterized as class IV fault. Limestone in this zone with 1–2 fractures per meter is defined as moderately fractured (category III). The eastern extension is classified as a system of large fractures of class V with aperture width > 2 cm. By fracture density, this zone with 2–10 fractures is defined as intensely fractured (category IV) limestone. Generally, limestone rocks in the study area with varying degrees of fracturing are characterized by anomalously low k coefficients, which characterize them by static prediction as hard with characteristic values of unconfined compressive strength of about 80–100 MPa with an error of 4,2–10,2 MPa.
Keywords: Druzhby Narodov Avenue, bedrock, limestone, tectonic fracturing and crushing zone, ground penetrating radar, electromagnetic wave, attenuation coefficient.
HYDROGEOLOGY & GEOLOGICAL ENGINEERING
Novikov V.P. (Territorial fund of geological information for the Ural Federal District) // firstname.lastname@example.org
BASIC WATER-PHYSICAL PROPERTIES OF THE WEATHERING CREST IN HYDROGEOLOGICAL FORECASTS IN THE URAL FOLDED REGION
Based on the materials of the operation of the Ural gold deposits (over the past 40 years) in the zones of weathering crust (oxidized ores) by open method and gold mining by underground leaching (UL) in this part of the geological section, criteria for evaluating the value of active porosity (water yield) have been developed. These criteria based on laboratory definitions of granulometric composition that coincide with the results of observations during the operation of underground water for water supply purposes. The results of these calculations are of great importance for assessing the prospects for chlorination UL and calculating groundwater reserves using the «river flow reduction» method.
Keywords: Ural Folded Realm, hydrogeological conditions, weathering crust, active porosity.
TECHNIQUES & TECHNOLOGY
Ivanov A.G. (Atomredmetzoloto) // AlekGeorIvanov@armz.ru
Ivanov D.A. (Weatherford Company) // email@example.com
Arsentev Yu.A. (MGRI-RGGRU) // firstname.lastname@example.org
Nazarov A.P. (MGRI-RGGRU) // email@example.com
Solovev N.V. (MGRI-RGGRU) // firstname.lastname@example.org
Nekoz S.Yu. (MGRI-RGGRU) // email@example.com
FEATURES OF WATERPROOFING OF THE LAWN SPACE OF WELL-ZHIN UNDERGROUND LEACHING (SPV) OF METALS
Waterproofing of the cul-de-tan space is performed to eliminate the flow of working solutions above the productive horizon into the above-lying aquifers, to preserve the integrity of the operational columns when exposed to excess, exceeding the allowable for the applied casing pipes, mountain pressure, leading to their crumpling and compensation of temperature and hydraulic loads on the column during the construction and operation of wells. The work provides the main methods of waterproofing, the materials used for this, provides information about the promising materials of waterproofing and the areas of their application.
Keywords: uranium mining, SPV technological wells, waterproofing of the enchanted space, materials for waterproofing of the enchanted space.
MANAGEMENT & ECONOMICS
Markidonov A.V. ( T.F. Gorbachev Kuzbass State Technical University, Branch KuzSTU in Novokuznetsk), (Kemerovo State University, Branch KemSU in Novokuznetsk) // firstname.lastname@example.org
Salikhov V.A.1 ( T.F. Gorbachev Kuzbass State Technical University, Branch KuzSTU in Novokuznetsk) // email@example.com
APPLICATION OF MATHEMATICAL METHODS FOR ASSESSING THE CONTENT OF STRATEGICALLY IMPORTANT METALS IN THE COALS OF KUZBA SS AND THEIR ASH AND SLAG WASTE
The problem of the shortage of non-ferrous and rare metals for the industry of the Russian Federation is substantiated. Briefly considered are the features of metalliferous coal of Sbiri, and in more detail — of the Kuznetsk basin. The data on the content of iron, non-ferrous and rare metals in the coals of the Kuznetsk basin and their ash and slag waste (ASW) are presented. The prospects of using coal and their ash and slag for extraction of scarce and demanded metals from them are estimated. ASW are identified as the most promising objects for their extraction. For this, a hierarchical cluster analysis was used, as a result of which dendrograms were constructed, which made it possible to determine the most promising clusters (metal-bearing coal-bearing suites). The Ward method was used as the main clustering method. Thus, using the mathematical methods, the Kuzbass coal-bearing formations, coals, and, especially, ASW coal, which are economically feasible to develop to produce iron, as well as a number of non-ferrous and rare metals, have been identified. The main provisions of the methodology for the geological and economic evaluation of coal seams and ash dumps of energy enterprises, as well as the methodology for assessing the economic feasibility of extracting metals from the most promising object for development — ASW coal.
Keywords: ash and slag waste of coal, non-ferrous and rare metals, coal-bearing suite, cluster analysis, Ward’s method, geological and economic assessment, economic feasibility.
BOWELS PROTECTION & ECOLOGY
Sheshnev A.S. (Saratov State University) // firstname.lastname@example.org
Mikheeva L.S. (KogalymNIPIneft Branch of LUKOIL Engineering LLC in Tyumen) // MiheevaLS@tmn.lukoil.com
Reshetnikov M.V.(Saratov State University), (KogalymNIPIneft Branch of LUKOIL Engineering LLC in Tyumen) // email@example.com
MINERAL COMPOSITION OF THE BED LOAD OF RAVINE AND GULLY COMPLEXES IN THE CITY OF SARATOV
The mineral composition of bed load samples taken at the mouths of watercourses of ravine and gully complexes in the city of Saratov was investigated. The quartz-feldspar composition of bed load has been established, indicating their origin by means of the transport of the products of mechanical destruction of rocks by watercourses. In areas with the highest technogenic load, the bed loads contain a high content of quartz, a reduced proportion of feldspars and hydromica.
Keyword: mineral composition, bed load, urbanized areas, ravine and gully complexes, Saratov.