CONTENTS № 09/2023 |
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DOI: 10.53085/0034-026X_2023_09_03 УДК 553.411 (571.56) Stepanov V.A. (NIGTC FEB RAS) // vitstepanov@yandex.ru TYPOMORPHIC FEATURES OF GOLD NUGGETS OF CENTRAL KOLYMA (REVIEW) The information on the number, size, weight and composition of gold nuggets of the Central Kolyma province is given. It is shown that most of the nuggets are fragments of low-power quartz veins saturated with gold. They were formed due to mineralization of a low-sulfide, gold-quartz formation. The largest number of nuggets scattered over the area and having a high breakdown (865–920%) is noted in the placers of the Inyali-Debinsky ore-placer area. There are fewer nuggets within the Ayan-Yuryakh ore-placer area, the gold sample in them varies within 788–822%. The nuggets are confined to narrow extended zones of regional discontinuities and appeared due to gold quartz deposits in the middle part of the ore column. The least nuggets are in the Buyundino-Balygychansk ore-placer area with mineralization of the basal part of the ore column with low-grade gold. Keywords: gold nuggets, Central Kolyma province, ore column, gold sample, gold quartz formation.
Р.3-9 |
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DOI: 10.53085/0034-026X_2023_09_09 УДК 550.553.04 Silin I.I. (IMGRE) // igorivsil@yandex.ru Kilipko V.A. (IMGRE) // kilipko@rambler.ru Fuzaylova G.M.(IMGRE) // fzf9@rambler.ru REGULARITIES AND UNCERTAINTIES OF PROGNOSTIC ASSESSMENT OF MINERALIZED STRUCTURES USING GEOCHEMICAL SURVEY DATA The article presents the quantitative estimation protocol of the predictive resources using the fractal modeling of mineralized structures using data of detailed to local-scale geochemical surveys. The protocol employs the fractal geometry of the natural environment, as well as the difference between the atomic (spectral) and mineral concentrations of the ore-forming elements. Keywords: numerical model, fractal, predictive resources.
Р.9-18 |
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DOI: 10.53085/0034-026X_2023_09_18 УДК 553.411(575.1) Zhanibekov B.O. (Academic State Technical University named after Islam Karimova) // onibekovbobur@mail.ru Turapov M.K. (Institute of Mineral Resources, Uzbekistan) // mirali.turapov@mail.ru Ummatov N.F. (Institute of Mineral Resources, Uzbekistan) / nurali.ummatov@mail.ru Dulabova N.Yu. (State Committee of Geology day) // n.dulabova@mail.ru Ziemov B.Z.(National University of Uzbekistan) // bobur.ziyomov82@mail.ru SOME ASPECTS OF THE STRESS-STRAIN STATE OF TAMDYTAU DURING ORE FORMATION The paper deals with the issue of the relationship between tension and deformation of the Tamdytau area with its gold manifestations. A close relationship between the formation and placement of gold ore objects with fields of weak tectonic stresses and with zones of local change in deformation is shown. Keywords: gold occurrences, stresses, deformation, placement, geodynamic structure, deposit.
Р.18-22 |
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DOI: 10.53085/0034-026X_2023_09_22 УДК 551.251 Likhanov I.I. (Institute of Geology and Mineralogy SB RAS, Novosibirsk) // likh@igm.nsc.ru Kozlov P.S. (Institute of Geology and Geochemistry UrO RAS, Ekaterinburg) // kozlov@igg.uran.ru HIGHALUMINA ROCKS OF THE YENISEI RIDGE: FEATURES OF METAMORPHISM AND PROSPECTS FOR PRACTICAL USE The work is devoted to the research of deposits and ore occurrences of minerals of the sillimanite group (MGS) to create an ore base for the industrial production of high-tech products at the Boguchansk aluminum plant in the Angara region. The features of the evolution of high-alumina metapelites are shown, the characteristics of ore occurrences of high-alumina raw materials (HCV) of the North Yenisei Ridge are given. Keywords: North Yenisei ridge, high-alumina raw materials (HCV), minerals of the sillimanite group (MGS), Panimbin andalusian deposit, Teisk sillimanite deposit.
Р. 22-30 |
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DOI: 10.53085/0034-026X_2023_09_30 УДК 553.615:622.75/.77 (571.513) Nekipelova A.V. (Institute of Geology and Mineralogy SB RAS) // nekipelova@igm.nsc.ru Sokol E.V. (Institute of Geology and Mineralogy SB RAS) // sokol@igm.nsc.ru Likhanov I.I. (Institute of Geology and Mineralogy SB RAS) // likh@igm.nsc.ru Kokh S.N. (Institute of Geology and Mineralogy SB RAS) // zateeva@igm.nsc.ru Kozlov P.S. (Institute of Geology and Mineralogy SB RAS, Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of Sciences, Yekaterinburg) // kozlov@igg.uran.ru Khvorov P.V. (South Ural Federal Scientific Center of Mineralogy and Geoecology, Ural Branch of the Russian Academy of Sciences, Miass) // khvorov@mineralogy.ru CHARACTERISTICS OF KIANITE AND ANDALUSITE CONCENTRATES FROM HIGH-ALUMINA METAMORPHIC ROCKS OF YENISEY RIDGE ANGARA The purpose of the work is to determine the most effective method for producing high purity andalusite-kyanite concentrates comparable in characteristics to commercial Al2SiO5 products; apply enrichment schemes combining the cheapest and simplest methods of magnetic and gravitational separation. High-alumina metamorphic rocks of the Mayakon and Panimbinsky sections of the Teysk complex were studied, their comparison with industrial kianite ores of the Kola Peninsula, Karelia and the Urals was carried out. Laboratory experiments on enrichment of typical ferruginous-alumina metamorphic rocks of the Tei complex were performed. Keywords: enrichment of alumina metamorphic ores, promising objects of high-alumina raw materials, Teysky complex, andalusitekyanite concentrate.
Р. 30-33 |
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DOI: 10.53085/0034-026X_2023_09_33 УДК 550.83:550.814:553.495 (571.53) Kalmykov B.A. (Aerogeophysics) // kalmykov@aerogeo.ru Trusov A.A. (Aerogeophysics) // trusov@aerogeo.ru Grebenkin N.A. (VIMS) // grebenkin@vims-geo.ru Karmanov E.N. (VIMS) // karmanov@vims-geo.ru REFLECTION OF ORE CONTROL FACTORS OF THE TUYUKAN ORE FIELD IN THE MATERIALS OF INTEGRATED AEROGEOPHYSICAL SURVEY The possibilities of identifying and mapping of ore-controlling factors of hydrothermal uranium mineralization localization based on the materials of a multimethod airborne geophysical survey (airborne magnetic, airborne gamma-ray spectrometry and airborne time-domain EM) were shown. The features of structural, lithological-stratigraphic, magmatic and hydrothermal-metasomatic ore-controlling factors reflected in the geophysical fields and models were revealed. The effectiveness of this kind airborne geophysical multimethod survey allows us to recommend it use at the beginning stages of prospecting. Keywords: aeromagnetic survey, aerogamma spectrometry, MPP aero-electrical survey. ore control factors, search for uranium deposits.
Р. 33-44 |
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DOI: 10.53085/0034-026X_2023_09_44 УДК [624.131.54+528.482:69.058.2]575.11 Kurbanov E.Sh. (Institute of Hydrogeology and Engineering Geology, Uzbekistan) // elboy.qurbonov@mail.ru Ashurov O.G. (Institute of Hydrogeology and Engineering Geology, Uzbekistan) // ashirovS@mail.ru Khusanova A.X. (Institute of Hydrogeology and Engineering Geology, Uzbekistan) // umidahq@gmail.com ANALYSIS AND EVALUATION OF FACTORS INFLUENCING THE OCCURRENCE OF DEFORMATION PHENOMENA AT THE KALMAKYR MINE The article discusses the analysis and evaluation of the deformation processes in the Kalmakir quarry, the general water drainage of groundwater entering the quarry in the mining area under these conditions, changes in the groundwater level in wells, rock cracking. the deformations of rocks are divided into systems and evaluated by methods of geophysical electrical exploration and seismic indicators of rocks. Keywords: deformation, water flow, crack, dampening, collapse, filtration, board, fragmented rocks, seismotomography.
Р. 44-47 |
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DOI: 10.53085/0034-026X_2023_09_48 УДК 622. 277 Ivanov A.G. (VNIPIpromtekhnologii) // ivaonv_ag@mail.ru Arsentev Yu.A. (MGRI-RGGRU) // arsentev1956@yandex.ru Ivanov D.A. (MGRI-RGGRU) // dexhouse@yande.ru Nazarov A.P. (MGRI-RGGRU) // nazarovap@mgri.ru INFLUENCE OF THE SOLID PHASE CONTENT IN THE CLAY SOLUTION ON THE COLMATATION OF SANDS DURING THE OPENING OF AQUIFERS The dissection of aquifers represented by sands of different densities, using clay solution is accompanied by the colmatation of the filter zone. This paper shows the effect of the sludge contained in this solution, consisting of particles of drilled rocks, on the depth of penetration of clay solution into the horizon. On the basis of stand studies, the maximum depth of penetration of such a solution into the sand samples of various granulometric composition sands and the time of cessation of filtration through the samples when pumping in them solution with different contents solid phase. Keywords: aquifer, sands, colmatation, clay solution, solid phase concentration.
Р. 48-51 |
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DOI: 10.53085/0034-026X_2023_09_52 УДК 551.435.627+550.394 Sirotkina O.N. (Lomonosov State University) // onsirotkina@gmail.com Nikiforov S.P. (Research and Production Center for Engineering Research) Zerkal O.V. (Lomonosov State University) // igzov@mail.ru Fomenko I.K. (MGRI-RGGRU) // ifolga@gmail.com ESTIMATION OF ACCELEROGRAM PARAMETERS WHEN CALCULATING SLOPE STABILITY (on the example of a landslide on the Lozovaya River, Sakhalin) For the landslide slope on the left side of the right tributary of the Lozovaya River, a quantitative assessment of stability under seismic impact was performed based on dynamic analysis (Newmark method). On the basis of synthesized generalized accelerograms, the question of the influence of the remoteness of the earthquake epicenter on the stability of the landslide slope is considered. Keywords: landslides, slope stability analysis, seismic impact, acceleragram, the Newmark method, the Sarma method.
Р. 52-58 |