The Bulletin of Irkutsk State University. Series Earth Sciences最新文献

{"title":"The Main Trends of Restorative Dynamics of Agrarian-Transformed Geosystems of the Tunkinskaya Depression","authors":"Z. Atutova, O. A. Yekimovskaya","doi":"10.26516/2073-3402.2019.27.16","DOIUrl":"https://doi.org/10.26516/2073-3402.2019.27.16","url":null,"abstract":"","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116544781","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 Virgin Agriculture in Northern Kazakhstan: Determinants of Regional Development","authors":"S. Pashkov","doi":"10.26516/2073-3402.2022.42.68","DOIUrl":"https://doi.org/10.26516/2073-3402.2022.42.68","url":null,"abstract":"The agriculture of the Soviet Union, incorporated into the closed economy, significantly lagged behind the Western countries in terms of productivity and labor efficiency due to its extensive nature. Soviet mega-project – the development of virgin and fallow lands in the eastern regions of the country, was not trigger. The purpose of this project was to solve the problem of providing the population with bread. This article considers the underlying causes that led to the initially given vector of extensive development of the virgin agricultural space of Northern Kazakhstan, despite the colossal funds invested in the development of the steppe frontier. The article researches the post-Soviet institutional transformations in the agriculture of the republic, which affected, first of all, the agriculture of the grain belt. Used descriptive and research statistical tools made possible determination of the factors of the post-crisis transition of agricultural formations to the cultivation of industrial (oilseeds) crops as the most highly profitable in modern conditions. Our results showed a significant time and space dynamics of the structure of sown areas and a qualitative transformation of agriculture on the example of an integral part of the virgin frontier – North Kazakhstan region, as a result of the transition to an agrarian landscape system of land management in combination with the digitalization of the industry and the diversification of crops. Innovative and paternalistic measures of further mesoterritorial intensification of agriculture are proposed.","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132817944","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":"Microstructures of Clay Minerals from Sedimentary Infilling of Barguzin Valley: Data of Scanning Electron Microscopy","authors":"R. Alokla, I. Chuvashova, S. Rasskazov, M. Danilova","doi":"10.26516/2073-3402.2019.29.24","DOIUrl":"https://doi.org/10.26516/2073-3402.2019.29.24","url":null,"abstract":"","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129517357","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":"Vladimir Mikhailovich Sokolnikov: Life for the Benefit of the Motherland and Science","authors":"O. Rusinek, L. Kuimova, M. Shimaraev, E. Troitskaya, P. Sherstyankin","doi":"10.26516/2073-3402.2022.42.137","DOIUrl":"https://doi.org/10.26516/2073-3402.2022.42.137","url":null,"abstract":"The article is dedicated to the well-known hydrologist, meteorologist and hydrophysicist, glaciologist, polar explorer and Baikal scientist, candidate of technical sciences Vladimir Mikhailovich Sokolnikov (1904–1971). V.M. Sokolnikov is a major specialist in the ice-thermal regime of rivers and lakes. He is one of the organizers of ice crossings on Lake Ladoga during the Great Patriotic War (1941–1945). He was also a member of the first polar expeditions in the Arctic, the author of a number of works on the hydrological and ice regime of the rivers of the Leningrad Region, the Caucasus and the ice regime of Lake Baikal. In 1952 V.M. Sokolnikov came to Baikal. Here he created the Laboratory of Hydrology and Hydrophysics at the Baikal Limnological Station (later the Limnological Institute of the Siberian Branch of the Russian Academy of Sciences). He created the Baikal school of hydrology, which is currently developing the directions identified by V.M. Sokolnikov. Life of V.M. Sokolnikov – scientist, organizer of scientific research and teacher, is an example of selfless service to the Motherland and his cause. The article was prepared in connection with the 80th anniversary of the “Road of Life” on Lake Ladoga, in the construction of which V.M. Sokolnikov was directly involved.","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131122840","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":"Application of GIS Technologies and Aerial Photography for Geoinformation Mapping and Modelling of Relief of Agroland Landscapes","authors":"S. Pashkov, G. Mazhitova","doi":"10.26516/2073-3402.2020.34.82","DOIUrl":"https://doi.org/10.26516/2073-3402.2020.34.82","url":null,"abstract":"The article is devoted to one of the topical applied areas of agrarian landscape research – geoinformation mapping, the development of maps and models of the topography of agricultural areas. The authors demonstrate results of works on large-scale geoinformation mapping and modeling of the topography of the oldest region of bogharic agriculture of Kazakhstan – North Kazakhstan region using methods and materials of remote sensing data and GIS technologies. The main source material in the study was a series of aerial photographs obtained from an unmanned aerial vehicle (UAV). The site of photographing was carried out by GEOSCAN-Kazakhstan LLP with using the Geoscan-201M Agro/Geodesy aerial photography complex. Characteristics of photographing: height – 280 m, visible range – 5 cm/pixel, multispectral – 13 cm/pixel. Geoinformation data on the nature of the relief were obtained during field studies in 2018-2020. Studies were carried out at the local level on the example of agricultural area located in the north of the region within the forest and steppe arable small-circuit agrarian landscape. Based on the results of the study, an electronic vector basis and specialized attribute data of the key area in the GIS environment, a digital relief model were prepared, spatial analysis and modeling of the geomorphological device of the arable surface were performed. The importance of the work is given by a significant agrogenic transformation of the relief of the definite locality during the almost 270-year history of agriculture. A series of maps of the main characteristics and morphometric indicators of the relief, significant from the point of view of crop production intensification and the development of accurate (precision) agriculture of the region, has been worked out. As a result of the study, the methodology of large-scale geoinformation mapping and modeling of the terrain of agrolandscapes in the GIS environment based on aerial photographs from UAVs was developed and tested. The algorithm of work has been compiled, starting from field studies, completing with the development of thematic maps and morphometric analysis of the relief and nature of the surface structure of the studied area.","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":" 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134412174","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":"Zircon as a Source of Genetic Information in Upper Riphean Terrigenous Deposits of Southern Timan","authors":"O. Grakova, N. Nikulova, S. Isaenko","doi":"10.26516/2073-3402.2023.43.19","DOIUrl":"https://doi.org/10.26516/2073-3402.2023.43.19","url":null,"abstract":"Zircon is an important source of genetic information. The purpose of the research is a detailed study, identification of diagnostic features, and determination of the evolution of the composition of zircon, which will make it possible to establish the sources of clastic material and the conditions for the formation of the paleontologically mute terrigenous Dzhezhim Formation on the Dzhzhimparma Rise (Southern Timan). The article presents the results of the study of zircon from the Upper Proterozoic metasedimentary deposits of the South Timan by Raman spectroscopy. According to morphological features, chemical composition, internal structure and degree of crystallinity, four types of zircon have been distinguished. The Raman spectra of all morphological types of the studied mineral was surveyed. A comparative analysis of the Raman characteristics showed that the first type is characterized by the highest degree of crystallinity, the third type is characterized by the minimum, and the second type occupies an intermediate position. The fourth type is a unique highphosphorus zircon, the nature of its spectra reflects the presence of Y, P, REE, and other impurity elements, and also indicates its metamictization as a result of radiation damage to the structure. Morphological features, differences in the chemical composition and characteristics of the Raman spectra of the distinguished types of zircon indicate the difference in the sources from which they entered the sedimentary rock. The source of type I zircon could be felsic igneous rocks. Type II and III zircons are probably of metamorphogenic origin. The formation of the modern composition and appearance of zircons of the fourth type, the formation of which is associated with a high-temperature magmatic source, is due to multiphase transformations in hydrothermal-metamorphic and epigenetic processes. We believe that type IV zircons have the longest history of existence. This is evidenced by their high metamict, i.e., the destruction of the crystal lattice under the action of U and Th radiation, which depends on their number and the age of zircon grains. It is known that the age of zircon of the Dzhezhim Formation is pre-Upper Riphean; during its existence, the mineral was repeatedly subjected to various external influences that changed the parameters of its crystal structure.","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131369279","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":"Moisture Content of the Troposphere Above the Observation Point Ust-Barguzin","authors":"M. Dembelov, M. E. Ovdin","doi":"10.26516/2073-3402.2019.27.32","DOIUrl":"https://doi.org/10.26516/2073-3402.2019.27.32","url":null,"abstract":"","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115382802","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":"Intermunicipal Differentiation of the Intensity of Land Turnover in the Baikal Region","authors":"M. Rogova","doi":"10.26516/2073-3402.2019.28.108","DOIUrl":"https://doi.org/10.26516/2073-3402.2019.28.108","url":null,"abstract":"","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117149280","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":"Geological Structure of the Tolsky Basin (Mongolia) by Gravimetric Data","authors":"E. Turutanov, B. Buyantogtokh, B. Tengis","doi":"10.26516/2073-3402.2019.29.114","DOIUrl":"https://doi.org/10.26516/2073-3402.2019.29.114","url":null,"abstract":"","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116385280","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":"Determination of the Equivalent Equilibrium Volumetric Activity of Radon in Residential Buildings (Оn Example of the Kachug Village, Irkutsk Region)","authors":"A. Akhtimankina, A. P. Tayurskaya","doi":"10.26516/2073-3402.2022.39.3","DOIUrl":"https://doi.org/10.26516/2073-3402.2022.39.3","url":null,"abstract":"The aim of the work is to determine the equivalent equilibrium volumetric activity of radon (EEVA) in a number of residential buildings in the village of Kachug (Irkutsk region) in order to identify objects with violation of hygienic requirements. The survey of buildings was carried out taking into account the guidelines MU 2.6.1.037-2015 “Determination of the average annual values of EEVA of radon isotopes in indoor air based on the results of measurements of different durations” and using two measuring complexes: a SIRAD MR-106N radon detector-indicator and a com - complex CAMERA- 01. The study was carried out in 2 stages. At the first one, measurements were carried out using a detector- indicator, at the second, the results were refined taking into account the excesses identified earlier. As a result of surveys conducted in 10 residential buildings, radon EEVA values were registered at two sites that exceeded the regulatory requirements. Regarding the functional purpose, the highest values of radon concentrations are observed in bathrooms and bedrooms. However, the absolute maximum of radon EEVA is observed in the basement (11,950 Bq/m3). The results of the work are presented in the form of graphic material. In conclusion, recommendations are given that will make it possible to reduce radon concentrations until the true cause of the excess of radon EEVA is established.","PeriodicalId":147615,"journal":{"name":"The Bulletin of Irkutsk State University. Series Earth Sciences","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127664353","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}