Pub Date : 2023-03-21DOI: 10.18500/1819-7663-2023-23-1-39-52
The paper presents biostratinomicalcharacteristics of the Cenomanian and the Turonian fossilcomplexes found in theMiddle Turonian phosphorite horizon from the Senomanskaya Stenka section (Volgograd region, Zhirnovsk district) constituting the basis of the benthic colonies and nekton communities. Probable interpretations for the settings contributory to generation of the phosphorite inclusion clusters are provided.
{"title":"The biogenic component of the Middle Turonian phosphorite horizon from the Senomanskaya Stenkasection.Paper 2.Biostratinomical analysis","authors":"","doi":"10.18500/1819-7663-2023-23-1-39-52","DOIUrl":"https://doi.org/10.18500/1819-7663-2023-23-1-39-52","url":null,"abstract":"The paper presents biostratinomicalcharacteristics of the Cenomanian and the Turonian fossilcomplexes found in theMiddle Turonian phosphorite horizon from the Senomanskaya Stenka section (Volgograd region, Zhirnovsk district) constituting the basis of the benthic colonies and nekton communities. Probable interpretations for the settings contributory to generation of the phosphorite inclusion clusters are provided.","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122136373","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}
Pub Date : 2023-03-21DOI: 10.18500/1819-7663-2023-23-1-61-71
A. Kharitonov
The articleconsiders method application results ofcorrelation analysis of gravitational and magnetic field data, heat flux values, data of decoding satellite images measured in the regions of the Pre-Caspian and Scythian large concentric morphological structures of the central type. As a result, using the correlation method, a complex of various geophysical fields in these regions was analyzed. Local concentric morphological structures with high values of the gravitational field and heat flow promising for the search of new oil and gas fields were identified.
{"title":"Theresults of the probabilistic correlation analysis of geological and geophysical data on the territory of the Scythian and Pre-Caspian morphological structures to assess the prospects of oil and gas-bearing areas","authors":"A. Kharitonov","doi":"10.18500/1819-7663-2023-23-1-61-71","DOIUrl":"https://doi.org/10.18500/1819-7663-2023-23-1-61-71","url":null,"abstract":"The articleconsiders method application results ofcorrelation analysis of gravitational and magnetic field data, heat flux values, data of decoding satellite images measured in the regions of the Pre-Caspian and Scythian large concentric morphological structures of the central type. As a result, using the correlation method, a complex of various geophysical fields in these regions was analyzed. Local concentric morphological structures with high values of the gravitational field and heat flow promising for the search of new oil and gas fields were identified.","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"8 3-4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122318275","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}
Pub Date : 2023-03-21DOI: 10.18500/1819-7663-2023-23-1-8-20
Mami Magbini Tokpa, V. Lobanov, N. V. Korotkova
Based on the results of the historical experiment of the CMIP5 and CMIP6 projects, the effectiveness of the scenario estimates (RCP/SSP1 2.6, RCP/SSP2 4.5 and RCP/SSP5 8.5) of the future air temperature for Central Africa for the IPSL and BCC global climate models is evaluated and the simulation results of these projects are compared with each other and with the observations of meteorological stations in the region, both for the historical experimental period and with the observations of recent years for the implementation of future climate projections. Based on historical experiment and future evaluations over the past 16 years, it has been determined that the CMIP6 project model versions are no more effective than the CMIP5 results when compared with observational data. Due to the fact that the differences between observational and modeling data are systematic, the results of scenario estimates were adjusted according to the principle of similarity of temperature growth rates for the historical observation period and the future scenario period untilthe end ofthe 21stcentury,which is divided into 3 intervalsfor estimating average values: 2011–2040, 2041–2070 and 2071–2100. Future air temperatures in Central Africawere estimated both forthe average values fortheterritory and forthetemperatures of individualweatherstations based on the adjusted scenario values, which differed in CMIP5 and CMIP6 by no more than 0.1°С. It was found that the average temperature increase over the territory in all months by the end of the 21st century reaches 2.0–2.3°C, and according to estimates at individual weather stations, spatial distributions of future temperatures were obtained, which show the greatest increase in the north of the region near the Sahel.
{"title":"Assessment of future Central African air temperatures under the CMIP5 and CMIP6 project scenarios","authors":"Mami Magbini Tokpa, V. Lobanov, N. V. Korotkova","doi":"10.18500/1819-7663-2023-23-1-8-20","DOIUrl":"https://doi.org/10.18500/1819-7663-2023-23-1-8-20","url":null,"abstract":"Based on the results of the historical experiment of the CMIP5 and CMIP6 projects, the effectiveness of the scenario estimates (RCP/SSP1 2.6, RCP/SSP2 4.5 and RCP/SSP5 8.5) of the future air temperature for Central Africa for the IPSL and BCC global climate models is evaluated and the simulation results of these projects are compared with each other and with the observations of meteorological stations in the region, both for the historical experimental period and with the observations of recent years for the implementation of future climate projections. Based on historical experiment and future evaluations over the past 16 years, it has been determined that the CMIP6 project model versions are no more effective than the CMIP5 results when compared with observational data. Due to the fact that the differences between observational and modeling data are systematic, the results of scenario estimates were adjusted according to the principle of similarity of temperature growth rates for the historical observation period and the future scenario period untilthe end ofthe 21stcentury,which is divided into 3 intervalsfor estimating average values: 2011–2040, 2041–2070 and 2071–2100. Future air temperatures in Central Africawere estimated both forthe average values fortheterritory and forthetemperatures of individualweatherstations based on the adjusted scenario values, which differed in CMIP5 and CMIP6 by no more than 0.1°С. It was found that the average temperature increase over the territory in all months by the end of the 21st century reaches 2.0–2.3°C, and according to estimates at individual weather stations, spatial distributions of future temperatures were obtained, which show the greatest increase in the north of the region near the Sahel.","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127851606","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}
Pub Date : 2023-03-21DOI: 10.18500/1819-7663-2023-23-1-53-60
E. M. Pervushov
Study of the skeletal morphology of a new representative of the Leptophragmidae family, with no suboscula in its structure, provides support for the earlierspecified regularities in generation of Hexactinellida modular forms. Good preservationstate of a majorcolony has made it possible to specify the aspects of paleoecology and taphonomy in the later representatives of the Middle Coniacian – Early Santonian succession of siliceous sponges.
{"title":"Colonial Leptophragmidae (Porifera, Hexactinellida) from the Lower Santonian of the Volga region","authors":"E. M. Pervushov","doi":"10.18500/1819-7663-2023-23-1-53-60","DOIUrl":"https://doi.org/10.18500/1819-7663-2023-23-1-53-60","url":null,"abstract":"Study of the skeletal morphology of a new representative of the Leptophragmidae family, with no suboscula in its structure, provides support for the earlierspecified regularities in generation of Hexactinellida modular forms. Good preservationstate of a majorcolony has made it possible to specify the aspects of paleoecology and taphonomy in the later representatives of the Middle Coniacian – Early Santonian succession of siliceous sponges.","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114204340","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":"Representatives of the subfamily Cheloniceratinae Spath, 1923 (Ammonoidea) from the Aptian of Mangyshlak, Western and Southern Turkmenistan. Paper 2. The Genus Epicheloniceras Casey, 1954","authors":"K. S. Polkovoy","doi":"10.18500/1819-7663-2022-22-4-283-294","DOIUrl":"https://doi.org/10.18500/1819-7663-2022-22-4-283-294","url":null,"abstract":"The representatives of the genus Epicheloniceras Casey, 1954 from the Middle Aptian of Mangyshlak, Western and Southern Turkmenistan are described.","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121146037","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}
Pub Date : 2022-12-15DOI: 10.18500/1819-7663-2022-22-4-251-261
A. Yamashkin, S. Yamashkin
The article is devoted to solving the scientific problem of spatial data storage management using geoportal systems on the basis of solving the scientific problem of analyzing the patterns of spatiotemporal organization of complex dynamic hierarchically organized metageosystems. The paper proves that the problem of integrating large arrays of spatial information in spatial data infrastructures (SDIs) can be solved by designing multi-model storages operating on the basis of database management systems of different classes. To improve the reliability of spatial data integration systems, it is advisable to focus on a microservice architecture that involves organizing the interaction of separate services, each of which performs its own specific task. The following microservices usage contexts can be distinguished in the IPD: geoportals, spatial data analysis, processing and management systems, as well as distributed cloud storages.
{"title":"Geoportals as a tool for access to cloud storage of metageosystems data","authors":"A. Yamashkin, S. Yamashkin","doi":"10.18500/1819-7663-2022-22-4-251-261","DOIUrl":"https://doi.org/10.18500/1819-7663-2022-22-4-251-261","url":null,"abstract":"The article is devoted to solving the scientific problem of spatial data storage management using geoportal systems on the basis of solving the scientific problem of analyzing the patterns of spatiotemporal organization of complex dynamic hierarchically organized metageosystems. The paper proves that the problem of integrating large arrays of spatial information in spatial data infrastructures (SDIs) can be solved by designing multi-model storages operating on the basis of database management systems of different classes. To improve the reliability of spatial data integration systems, it is advisable to focus on a microservice architecture that involves organizing the interaction of separate services, each of which performs its own specific task. The following microservices usage contexts can be distinguished in the IPD: geoportals, spatial data analysis, processing and management systems, as well as distributed cloud storages.","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127464183","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}
Pub Date : 2022-12-15DOI: 10.18500/1819-7663-2022-22-4-262-267
Viktor A. Ogadzhanov, E. N. Volkova
Based on the analysis of gravitational and magnetic anomalies of the eastern part of the East European Platform, it is concluded that inhomogeneities caused by serpentinization processes are present in the Earth’s crust. This conclusion is confirmed by conducting geological and geophysical studies on reference objects with serpentinite outcrops.
{"title":"On the question of the geological nature of the crystalline basement inhomogeneities of the East European Platform","authors":"Viktor A. Ogadzhanov, E. N. Volkova","doi":"10.18500/1819-7663-2022-22-4-262-267","DOIUrl":"https://doi.org/10.18500/1819-7663-2022-22-4-262-267","url":null,"abstract":"Based on the analysis of gravitational and magnetic anomalies of the eastern part of the East European Platform, it is concluded that inhomogeneities caused by serpentinization processes are present in the Earth’s crust. This conclusion is confirmed by conducting geological and geophysical studies on reference objects with serpentinite outcrops.","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134054227","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}
Pub Date : 2022-12-15DOI: 10.18500/1819-7663-2022-22-4-243-250
A. A. Sokolov, O. Rudneva
The study is comprehensive and describes the socio-economic zoning of the Russian steppe beltterritory. The method of zoning of the Russian steppe beltterritory is developed on the basis of the studied experience by scientists. The obtained results revealed a high degree of differentiation of the steppe zone of Russia by the level of socio-economic development.
{"title":"Zoning of the Russian steppe belt territory according to the level of socio-economic development","authors":"A. A. Sokolov, O. Rudneva","doi":"10.18500/1819-7663-2022-22-4-243-250","DOIUrl":"https://doi.org/10.18500/1819-7663-2022-22-4-243-250","url":null,"abstract":"The study is comprehensive and describes the socio-economic zoning of the Russian steppe beltterritory. The method of zoning of the Russian steppe beltterritory is developed on the basis of the studied experience by scientists. The obtained results revealed a high degree of differentiation of the steppe zone of Russia by the level of socio-economic development.","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125113444","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}
Pub Date : 2022-12-15DOI: 10.18500/1819-7663-2022-22-4-268-282
E. M. Pervushov
The paper analyzes the taxonomiccomposition and the habitat of the representatives of the Middle – Late Cenomanian and the Middle Turonian marine biota. The examined fossils have been isolated from the bulk sample obtained from the phosphorite horizon lying in the bottom of the Middle Turonian carbonate rocks in the Senomanskaya Stenka section (Volgograd Region, Zhirnovsk district).
{"title":"The biogenic component of the Middle Turonian phosphorite horizon from the Senomanskaya Stenka section. Paper 1. Materials and paleoecological analysis","authors":"E. M. Pervushov","doi":"10.18500/1819-7663-2022-22-4-268-282","DOIUrl":"https://doi.org/10.18500/1819-7663-2022-22-4-268-282","url":null,"abstract":"The paper analyzes the taxonomiccomposition and the habitat of the representatives of the Middle – Late Cenomanian and the Middle Turonian marine biota. The examined fossils have been isolated from the bulk sample obtained from the phosphorite horizon lying in the bottom of the Middle Turonian carbonate rocks in the Senomanskaya Stenka section (Volgograd Region, Zhirnovsk district).","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128874145","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}
Pub Date : 2022-12-15DOI: 10.18500/1819-7663-2022-22-4-230-234
M. B. Bogdanov, S. Morozova, M. Alimpieva
Spectral analysis of the time series for average annual values of the globally averaged surface temperature anomaly shows the presence of harmonics of the lunar nodal cycle with a period of 18.6 years,whichcan be used to predict the values of theseries. Three models of theseries were considered: autoregression AR(p), combined model of autoregression – integrated moving average ARIMA(p,d,q) and artificial neural network. It is shown that the ARIMA(4,1,4) model gives the best results for predicting the global temperature anomaly for three years.
{"title":"Application of time series models for forecasting the global temperature anomalies","authors":"M. B. Bogdanov, S. Morozova, M. Alimpieva","doi":"10.18500/1819-7663-2022-22-4-230-234","DOIUrl":"https://doi.org/10.18500/1819-7663-2022-22-4-230-234","url":null,"abstract":"Spectral analysis of the time series for average annual values of the globally averaged surface temperature anomaly shows the presence of harmonics of the lunar nodal cycle with a period of 18.6 years,whichcan be used to predict the values of theseries. Three models of theseries were considered: autoregression AR(p), combined model of autoregression – integrated moving average ARIMA(p,d,q) and artificial neural network. It is shown that the ARIMA(4,1,4) model gives the best results for predicting the global temperature anomaly for three years.","PeriodicalId":193038,"journal":{"name":"Izvestiya of Saratov University. Earth Sciences","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133461371","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}
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