D. A. Ryzhova, A. I. Tolstova, E. P. Dubinin, M. V. Kosnyreva, A. A. Bulychev, A. L. Groholsky
{"title":"The Tectonosphere and Formation of the Mozambique Ridge: Density and Physical Modeling","authors":"D. A. Ryzhova, A. I. Tolstova, E. P. Dubinin, M. V. Kosnyreva, A. A. Bulychev, A. L. Groholsky","doi":"10.1134/s1819714023080195","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The tectonosphere and formation conditions of the Mozambique Ridge are considered. The Mozambique Ridge is located in the southwestern part of the Indian Ocean between the Natal and the Mozambique Mesozoic basins. The formation of the ridge is still debatable issue. The anomalous structure of the crust of the Mozambique Ridge can be explained either by underplating (thickening of the oceanic crust from below due to magmatism) or by stretching and thinning of the continental crust. Based on gravity and magnetic field anomalies, seismotomography and other geological and geophysical data, density modeling along four profiles was carried out. Physical modeling determined the formation conditions of the Mozambique Ridge, which was formed due to the splitting of the African–Antarctic continent, the presence of structural heterogeneities in the lithosphere of the African continent, and the influence of the Karoo plume.</p>","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":"37 1","pages":""},"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/s1819714023080195","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 tectonosphere and formation conditions of the Mozambique Ridge are considered. The Mozambique Ridge is located in the southwestern part of the Indian Ocean between the Natal and the Mozambique Mesozoic basins. The formation of the ridge is still debatable issue. The anomalous structure of the crust of the Mozambique Ridge can be explained either by underplating (thickening of the oceanic crust from below due to magmatism) or by stretching and thinning of the continental crust. Based on gravity and magnetic field anomalies, seismotomography and other geological and geophysical data, density modeling along four profiles was carried out. Physical modeling determined the formation conditions of the Mozambique Ridge, which was formed due to the splitting of the African–Antarctic continent, the presence of structural heterogeneities in the lithosphere of the African continent, and the influence of the Karoo plume.
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.