В статье представлены результаты геолого-геофизических исследований Карасор-Лисаковской магнитной аномалии, расположенной в Ельтай-Коржынкольском рудном районе Северного Казахстана. Работа направлена на уточнение ранее выявленных магнитных аномалий, определение перспективных участков на магнетитовые руды и оценку их пространственного распространения. Использованы данные скважинных геофизических исследований и переинтерпретации высокоточной наземной магнитной съемки.

The article discusses the advantages of using cryogenic technology in the production of gravel filter elements. A method for calculating the main components for the production of temporarily monolithic annular gravel elements is described. An approach has been developed for the strength analysis of annular gravel filter bits, taking into account installation conditions and the effect of water flow in the aquifer. An analytical calculation was performed to determine the distribution of gravel packing in the behind-screen space after the destruction of monolithic gravel discs. Recommendations are proposed to increase the volume of gravel packing by supplying an additional portion of gravel. The materials of the article are of practical value and can be used in the design of water intake well structures. © 2025 International Multidisciplinary Scientific Geoconference. All rights reserved.

The results analysis of calculating the stress-strain state (SSS) of heavily loaded elements of new powder metallurgy equipment by using an analytical method and a deformation model of metal strength is presented here. The influ-ence of tools construction on the heavily loaded elements of the pressing device stress-strain state is determined. It is shown that the new equipment for powder metallurgy has a sufficiently high rigidity of the unit structure and satisfies the strength condition. It is noted that pressing of long length profiles on the proposed pressing device will lead to the production of finished products of high quality. As a result of the equipment SSS calculating, rational structural dimensions of main units of the pressing device were determined. © 2022, Faculty of Metallurgy. All rights reserved.

In this article, we consider the roles of transcrustal magma- and fluid-conducting faults (TCMFCFs) in the formation of mineral deposits, showing the importance of deep sources of heat and hydrothermal solutions in the genesis and history of deposit formation. As a result of the impact on the lithosphere of mantle plumes rising along TCMFCFs, intense block deformations and tectonic movements are generated; rift systems, and volcanic–plutonic belts spatially combined with them, are formed; and intrusive bodies are introduced. These processes cause epithermal ore formation as a consequence of the impact of mantle plumes rising along TCMFCF to the lithosphere. At hydrocarbon fields, they play extremely important roles in conductive and convective heat, as well as in mass transfer to the area of hydrocarbon generation, determining the relationship between the processes of lithogenesis and tectogenesis, and activating the generation of hydrocarbons from oil and gas source rock. Detection of TCMFCFs was carried out using MMSS (the method of microseismic sounding) and MTSM (the magnetotelluric sounding method), in combination with other geological and geophysical data. Practical examples are provided for mineral deposits where subvertical transcrustal columns of increased permeability, traced to considerable depths, have been found; the nature of these unique structures is related to faults of pre-Paleozoic emplacement, which determined the fragmentation of the sub-crystalline structure of the Earth and later, while developing, inherited the conditions of volumetric fluid dynamics, where the residual forms of functioning of fluid-conducting thermohydrocolumns are granitoid batholiths and other magmatic bodies. Experimental modeling of deep processes allowed us to identify the quantum character of crystal structure interactions of minerals with “inert” gases under elevated thermobaric conditions. The roles of helium, nitrogen, and hydrogen in changing the physical properties of rocks, in accordance with their intrastructural diffusion, has been clarified; as a result of low-energy impact, stress fields are formed in the solid rock skeleton, the structures and textures of rocks are rearranged, and general porosity develops. As the pressure increases, energetic interactions intensify, leading to deformations, phase transitions, and the formation of chemical bonds under the conditions of an unstable geological environment, instability which grows with increasing gas saturation, pressure, and temperature. The processes of heat and mass transfer through TCMFCFs to the Earth’s surface occur in stages, accompanied by a release of energy that can manifest as explosions on the surface, in coal and ore mines, and during earthquakes and volcanic eruptions

Current data reveals about a hundred gold-bearing geological bodies have been identified in the Akmola region of Kazakhstan. Such ore-bodies are characterized by various quartz veins that occur often as stockworks, and new genetic types. The region looks promising in terms of the formation of gold-bearing rocks in deep horizons, since favorable factors of ore-forming geological structures have been identified. This assertion is supported by the known gold occurrences, and historic data from detailed exploration work, which prove the prospects for identifying economically viable gold deposits for development. Irrespective of the promising gold-rich terrain, the existence of complex geological structures, presence of extensive colluvium or loose sediments cover, coupled with poor geological to geophysical information, impedes exploration successes. This paper shows that considering the aforementioned challenges, a composite geophysical methods of aeromagnetic, and electrical techniques through unmanned aerial vehicle (UAV), marked by induced polarization in the modification of the median gradient can be effective. The results made it possible to solve the problems of detailing the geological and tectonic structure of the area, the spatial positions, and identification of deeply buried ore bodies. The adopted combined-approach projects subtle geological structure of the site, identifies promising geological bodies of interest for steppe-type gold mineralization, and demonstrated the applicability of geophysical methods in the search for gold-bearing zones.

The article focuses on improving the efficiency of in situ uranium leaching by developing a methodology for selecting optimal parameters for chemical well treatment. The study analyzes ore and precipitate samples formed during uranium leaching, identifies their mineralogical characteristics, and evaluates the effectiveness of treatment solutions based on hydrochloric and hydrofluoric acids to improve filtration properties of the productive horizon.

The article presents the application of multispectral remote sensing data for detecting porphyry copper deposits using the Aidarly deposit in Eastern Kazakhstan as a case study. The research uses ASTER and WorldView-3 satellite data, image processing methods, band ratios, false color composites and Spectral Angle Mapper classification to identify hydrothermal alteration zones related to copper mineralization.

The article presents an analysis of the physical properties of rocks and ores from the Zhezkazgan ore district. The study examines variations in magnetic, density, velocity and electrical parameters of geological formations. Based on measurements of rock samples and drill cores, the authors identify correlations between petrophysical properties, lithological features and mineralization processes.

The article evaluates the coal quality and trace element composition of the Karagandy Coal Formation in Kazakhstan. The study analyzes coal samples from the Saryadyr and Bogatyr mines using proximate and ultimate analyses, FTIR, XRD, SEM–EDS, ED-XRF and ICP-OES methods. The results provide information on mineralogical composition, geochemical characteristics and resource potential of the coal formation.

The article studies the anomalous geomagnetic field of Central Kazakhstan and its relationship with geological structures, deep faults, basement morphology, sedimentary-volcanic formations and mineral deposits. The work analyzes the morphology, intensity and size of magnetic anomalies and shows their significance for geological interpretation, prediction and identification of subsurface structures.