D. A. Ryzhova, E. P. Dubinin, M. V. Kosnyreva, A. A. Bulychev
{"title":"The Structural Zoning of the African–Antarctic Sector of the Southern Ocean Based on the Analysis of Anomalous Gravity and Magnetic Fields","authors":"D. A. Ryzhova, E. P. Dubinin, M. V. Kosnyreva, A. A. Bulychev","doi":"10.1134/s1819714023080201","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The African–Antarctic sector of the Southern Ocean is the least studied part of the World Ocean; its structure and evolution of the tectonosphere remains debatable. The complex development history of the region under study, accompanied by manifestations of intense magmatic and tectonic activity, has contributed to the formation of a number of large underwater ridges and rises. Identifying the features of the deep structure of the tectonosphere on the basis of the analysis of geophysical information and understanding the geodynamic nature of the morphostructures of the region under study is an urgent problem of marine geophysics and geodynamics. The structural analysis of the anomalous gravity and magnetic fields of the studied region was carried out. Zoning scheme by the anomalous fields as well as a generalized scheme have been constructed. The results of these studies made it possible to identify heterogeneous blocks of the lithosphere, which were formed on different spreading ridges and are separated by submarine rises.</p>","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2024-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Pacific Geology","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1134/s1819714023080201","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The African–Antarctic sector of the Southern Ocean is the least studied part of the World Ocean; its structure and evolution of the tectonosphere remains debatable. The complex development history of the region under study, accompanied by manifestations of intense magmatic and tectonic activity, has contributed to the formation of a number of large underwater ridges and rises. Identifying the features of the deep structure of the tectonosphere on the basis of the analysis of geophysical information and understanding the geodynamic nature of the morphostructures of the region under study is an urgent problem of marine geophysics and geodynamics. The structural analysis of the anomalous gravity and magnetic fields of the studied region was carried out. Zoning scheme by the anomalous fields as well as a generalized scheme have been constructed. The results of these studies made it possible to identify heterogeneous blocks of the lithosphere, which were formed on different spreading ridges and are separated by submarine rises.
期刊介绍：
Russian Journal of Pacific Geology publishes the results of research on the Earth crust and mantle composition and provides articles on the geological structure and patterns of distribution of mineral deposits in the Pacific Ocean, marginal seas and continental margins. It discusses the topics of stratigraphy, sedimentology, magmatic activity, and seismicity. The journal deals with the problems of lithosphere plates tectonics, and offers the results of neotectonic, geomorphological, geodesic, environmental and mining studies in the Pacific region. The journal accepts theoretical, methodical and philosophical articles covering general issues of geology, geophysics, geochemistry, geoecology and mining. The journal also publishes critical notes and comments, and reviews.
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