{"title":"THE ROLE OF ANCIENT KARST IN THE FORMATION OF URANIUM DEPOSIT (GORNAYA SHORIYA)","authors":"G. I. Dyachenko, G. E. Aseev","doi":"10.20403/2078-0575-2022-3-85-91","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-3-85-91","url":null,"abstract":"Marmorized limestones of the Upper Proterozoic are widely viewed as host rocks of the Labysh deposit. The formation of uranium ores in carbonate rocks does not correspond to existing сoncepts of the uranium ore process geochemistry. A detailed study of lode ores of the deposit showed that karst cavities were originally filled with limestone fragments of different sizes and finely-dispersed kaolinite. Further, an input of thermal alkaline solutions led to the leaching of earth silicon of metamorphogenic limestone silicates and formation of “silicinate–tar” veins. In fact, the rocks hosting mineralization are morphologically veined sedimentary wellpermeable rocks with geochemical properties approximating to hydrothermally altered rocks of intermediate composition.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47881318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Solovyev, A. Salnikov, V. Seleznev, T. V. Kashubina, N. Galyova
{"title":"TO STUDY THE DISTRIBUTION OF ORE CLUSTERS OF THE AMUR RIVER REGION MINEROGENIC PROVINCES WITH THE DEEP STRUCTURE FEATURES OF THE UPPER CRUST ON THE EAST-STANOVOY FRAGMENT OF THE REFERENCE GEOLOGICAL AND GEOPHYSICAL PROFILE 8-DV","authors":"V. Solovyev, A. Salnikov, V. Seleznev, T. V. Kashubina, N. Galyova","doi":"10.20403/2078-0575-2022-3-72-84","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-3-72-84","url":null,"abstract":"The results of deep seismic studies based on P- and S-wave data on the East-Stanov fragment of the reference 700-kilometer geophysical profile 8-DV are presented. Deep seismic sections of the upper crust (up to depths of 20 km) with velocity distribution of longitudinal and transverse waves are constructed. The velocity of P-waves in the upper part of the section varies from 4-5 km/s within the Upper Zeya and Amur-Zeya plains to 5.5-6.0 km/s within mountain ranges and plateaus. According to S-waves in the upper part of the section, the velocity values are generally 3.0-3.2 km/s; reduced velocity values of 2.5-2.6 km/s are noted in the Upper Zeya Plain section. The inhomogeneous structure of the upper part of the Earth’s crust to depths of 15-20 km has been established by the ratio of the velocities of P- and S-waves and the Poisson’s ratio. In the section of the profile, an analysis was made of the relationship between the identified anomalies and the location of large mineragenic zones of the Amur region. The correlations previously identified on the profiles 2-DV, 3-DV and 1-SB on the occurrence of a number of ore deposits in the zones of reduced ratios of P- and S-wave velocities and Poisson’s ratio in the upper part of the Earth’s crust have been confirmed. The connection of the identified surface seismic anomalies with deep roots (at depths of 5-20 km), which can be considered ore-bearing, is substantiated.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46423405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"REFERENCE GRID OF ЕARTH FAULTS AND ITS REFLECTION IN THE DIRECTION AND CONFIGURATION OF RIVERBEDS","authors":"P. P. Nagevich, E. V. Sergeeva, G. I. Karpizina","doi":"10.20403/2078-0575-2022-3-92-98","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-3-92-98","url":null,"abstract":"The article presents the author’s hypothesis (2014) about the reference grid of planetary faults of Earth, which also reflect the position of disjunctive dislocations at regional and local levels. It has been determining the entire geological life of Earth for 4.5 billion years of its existence. The grid is represented by faults of sublatitudinal (NW 193° – SE 113°; SW 246° – NE 66°); and submeridional (SE 169° – NW 349°; SW 191° – NE 11°) orientation. Main directions of the fault grid are reflected in the position and configuration of the main riverbeds of the globe, that is confirmed by the analysis of river planimetric images in various continents of Earth. Decoding and tracing faults by the configuration of riverbeds allows researchers to trace their position in interfluvial spaces and hypothetically assess the possibility of finding ore deposits confined to the zones of these faults.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48055257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"PETRO-GEOCHEMISTRY OF SUBVOLCANIC AND EXTRUSIVE FORMATIONS OF THE KEDROVO-KORGONCHIKOVSKY DISTRICT OF THE GORNY ALTAI","authors":"A. Gusev","doi":"10.20403/2078-0575-2022-3-45-54","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-3-45-54","url":null,"abstract":"The paper provides data on petro-geochemistry, petrology and ore content of subvolcanic and extrusive formations of the Korgon Devonian complex of the Kedrovo-Korgonchikovsky district of the Gorny Altai. Low-alkali rhyodacites, sodium-potassium rhyodacites, trachyrhyodacites, trachyrhyolites and rhyolites are characterized. They are attributed to the aluminous series and mainly to magnesian varieties. Increased gold contents and decreased silver contents are observed in rocks. Ratios of light to heavy lanthanoids show a large range of values – from 2.1 to 26.2 and light ones to medium ones – from 1.94 to 11.8. The tetrad effect of W-type REE fractionation, varying from 0.29 to 0.68 and indicating an abundance of volatile components, including H2O, CO2, S or H2S, was revealed in rocks, that served as the formation of quartzites and argillizites. Volcanites contain signs of mantle formations and contamination by crustal material due to melting of greywackes and amphibolites of the lower crust. The ore content of the district is realized in the formation of promising epithermal gold-silver and copper-molybdenum-gold-porphyry occurrences. The district is thought to be the object of the process manifestation of the fluid mantle-crustal ore genesis during formation of largevolume epithermal gold-silver, copper-molybdenum-gold-porphyry mineralization.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42238834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"THE FORECAST OF HIDDEN ORE MINERALIZATION WITHIN THE NORTHERN SLOPE OF THE ALDAN ANTECLISE ACCORDING TO THE DATA OF ELECTRIC EXPLORATION AND GRAVIMAGNETIC FIELDS","authors":"E. N. Makhnach, A. Mamaeva","doi":"10.20403/2078-0575-2022-3-39-44","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-3-39-44","url":null,"abstract":"Prospects for the discovery of solid minerals within the northern slope of the Yakut uplift of the Siberian Platform remain unclear to the end. However, in the light of new data and reassessment of old materials, this district is of interest for the identification of rare-earth mineralization in apatites. The isolated Tolon anomaly associated with a massif of alkaline rocks can be considered as a prospective target for commercial development within the framework of “Integrated Development of South Yakutia” project.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43659297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EVOLUTION OF TERRIGENOUS SEDIMENTOGENESIS (С3–K) OF THE LENA-KHATANGA INTERFLUVES (NORTH OF THE SIBERIAN PLATFORM)","authors":"V. Devyatov","doi":"10.20403/2078-0575-2022-3-17-29","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-3-17-29","url":null,"abstract":"Based on the analysis of geological and geophysical materials, data on the thickness, composition, conditions of formation and evolution of terrigenous sedimentogenesis of Upper Paleozoic, Triassic, Jurassic and Cretaceous deposits of the Lena-Khatanga interfluve are given, the relationship of sedimentation with large lineaments of the Earth’s crust and tectonic events is presented. The Late Paleozoic, Early Triassic, Jurassic-Cretaceous and Cenozoic stages of tectogenesis that completed the formation of structures are identified and confirmed.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46994242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MIGRATION OF ARTIFICIAL RADIONUCLIDES (137CS, 152EU, 60CO) IN THE BOTTOM SEDIMENTS OF THE YENISEY RIVER (NEAR ZONE OF INFLUENCE OF THE KRASNOYARSK MCP)","authors":"A. Chuguevsky, M. Melgunov, I. Makarova","doi":"10.20403/2078-0575-2022-2-68-77","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-2-68-77","url":null,"abstract":"The distribution nature of the artificial gamma-emitting radionuclides (137Cs, 152Eu, 154Eu, 155Eu, 60Co) in vertical columns of the Yenisei River bottom sediments selected in the near zone of influence of the Krasnoyarsk MCP was revealed. It is shown that the mineral composition of bottom sediments does not change with the depth and is mainly represented by quartz, plagioclase and potassium feldspar, with a small amount of amphibole, chlorite, mica. It was found that the exchangeable and carbonate forms contain, on average, 16% of 152Eu, 22% of137Cs and 15% of 60Co being found in bottom sediments. Radionuclides presented in these forms can pass into an aqueous solution and be involved in secondary migration under stable, natural conditions. Other fractions of the absorbing complex in the absence of catastrophic changes in physico-chemical conditions in the river ecosystem do not pass into an aqueous solution, and the redistribution of radionuclides associated with them can occur only with mechanical transfer of the matter.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45463868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CROSS-WELL PULSED ELECTROMAGNETIC EXPLORATION OF THE BAZHENOV FORMATION FROM LOWER CRETACEOUS AND UPPER JURASSIC RESERVOIRS","authors":"V. Strakhovenko, E. Ovdina, G. Malov","doi":"10.20403/2078-0575-2022-2-88-99","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-2-88-99","url":null,"abstract":"Small lakes located compactlyon small territories in the steppe landscape of different regions of Siberia have been studied. High uranium contents in waters of lakes of sodium bicarbonate composition with high alkalinity, as well as increased concentrations of uranium in the bottom sediments of some lakes were revealed. It has been determined that carbonates are deposited in these lakes against the background of the predominant terrigenous fraction (quartz, feldspars) as a result of chemogenic and biogenic processes with the participation of carbon dioxide gas, which is formed due to the bacterial destruction of organic matter. Сalcite-dolomite carbonates are shown to be predominated in the bottom sediments, and reducing conditions are created due to the destruction of organic matter. During the carbonate crystallization the U sorption occurs by newly formed minerals.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49187088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"CADOQUENSTEDTOCERAS – THE NEW MACROCONCH UPPER CALLOVIAN GENUS OF THE CARDIOCERATIDAE (AMMONOIDEA) FAMILY","authors":"V. G. Knyazev, A. Alifirov","doi":"10.20403/2078-0575-2022-2-3-9","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-2-3-9","url":null,"abstract":"The new macroconch genus of ammonites Cadoquenstedtoceras gen. nov. has been established from the Upper Callovian of Siberia. It is characterized by the quenstedtoceratoid stage at the middle whorles of the shell and cadoceratoid one at later stages of ontogenesis.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44527700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ON THE IMPROVEMENT OF THE CATAGENESIS SCHEME OF THE LOWER – MIDDLE JURASSIC DEPOSITS OF THE URENGOY PETROLEUM REGION AND ADJACENT TERRITORIES BASED ON MINERAL AND STRUCTURAL INDICATORS","authors":"E. A. Predtechenskaya, O. Zlobina","doi":"10.20403/2078-0575-2022-2-24-47","DOIUrl":"https://doi.org/10.20403/2078-0575-2022-2-24-47","url":null,"abstract":"The article briefly describes the state of the problem concerning stages and zoning of the catagenesis of terrigenous sedimentary strata, examines the mineral and structural indicators of the stages of regional catagenesis determined by a number of researchers in various petroleum basins of the world. Taking into account the mineral and structural indicators of the organic matter (OM) catagenesis scheme by S.G.Neruchev, N.B.Wassoevich and N.V.Lopatin, as well as the catagenesis scheme of terrigenous rocks by N.V.Logvinenko and L.V.Orlova, the author has compiled a more detailed scheme of stages and phases of regional catagenesis of the Lower-Middle Jurassic deposits of the Urengoy petroleum region and adjacent territories of the West Siberian sedimentary megabasin. To distinguish the stages and phases of catagenesis, the composition and typomorphic features of authigenic clay and carbonate minerals, feldspar, silica minerals and some other secondary minerals were used. In the sediments of the Lower-Middle Jurassic, according to the complex of mineral and structural criteria, three stages of rock transformation have been established: middle, late catagenesis and early metagenesis, as well as the main phases of identified stages. Minerals are characterized as indicators of boundaries between stages of middle and late catagenesis, late catagenesis and early metagenesis, as well as boundaries between phases of each stage.","PeriodicalId":52268,"journal":{"name":"Geology and Mineral Resources of Siberia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43591887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}