Оползневые процессы на вулканических постройках северо-восточной части Атлантического океана

Мазарович А.О.


DOI: 10.31431/1816-5524-2022-1-53-89-103

Аннотация

В северо-восточной Атлантике расположены (с юга на север) архипелаги вулканических островов Зеленого Мыса, Канарский, Селваженш, Мадейра и Азорский. Они были сформированы на океанической коре в миоцен-четвертичное время. Анализ геологического строения тридцати островов позволяет сделать вывод о том, что половина из них в ходе своей эволюции были разрушены в разное время катастрофическими оползневыми процессами. На некоторых из этих островов такие события происходили неоднократно. Они вызывали цунами и формировали крупные оползневые массы в прилегающих частях океана. На основании представленных данных сделано предположение о вулканических сооружениях, которые могут быть разрушенными оползневыми процессами. Предпосылкой для возникновения оползней на вулканической постройке могло быть смещение ее центра тяжести.

Ключевые слова

острова Зеленого Мыса; Канарские; Азорские; вулканическая постройка; оползень

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Литература

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