{"title":"Landslide Processes on Volcanic Edifices in the Northeastern Part of the Atlantic Ocean","authors":"A. O. Mazarovich","doi":"10.1134/s181971402308016x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In the northeastern Atlantic (from south to north) the archipelagoes of the volcanic islands of Cape Verde, Canary, Selvagens, Madeira, and Azores occur. These were formed on the oceanic crust in the Miocene-Quaternary times. The analysis of the geological structure of the thirty islands leads to the conclusion that half of them were destroyed at different times in the course of their evolution by catastrophic landslide processes. Some of these islands were affected by such events repeatedly. These events caused tsunamis and formed large landslide masses in the adjacent parts of the ocean. Based on the data, volcanic edifices that might have been destroyed by landslide processes are proposed. A prerequisite for landslides to appear on a volcanic edifice could be a shift of its center of gravity.</p>","PeriodicalId":49583,"journal":{"name":"Russian Journal of Pacific Geology","volume":"161 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/s181971402308016x","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
In the northeastern Atlantic (from south to north) the archipelagoes of the volcanic islands of Cape Verde, Canary, Selvagens, Madeira, and Azores occur. These were formed on the oceanic crust in the Miocene-Quaternary times. The analysis of the geological structure of the thirty islands leads to the conclusion that half of them were destroyed at different times in the course of their evolution by catastrophic landslide processes. Some of these islands were affected by such events repeatedly. These events caused tsunamis and formed large landslide masses in the adjacent parts of the ocean. Based on the data, volcanic edifices that might have been destroyed by landslide processes are proposed. A prerequisite for landslides to appear on a volcanic edifice could be a shift of its center of gravity.
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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