СЛЕДЫ ВЫСОКОЙ СЕЙСМИЧЕСКОЙ АКТИВНОСТИ В ПОВЕРХНОСТНЫХ ОТЛОЖЕНИЯХ ОЗЕРА БАЙКАЛ, СИБИРЬ

Осадконакопление в озере Байкал происходит на фоне постоянной сейсмической активности Байкальской рифтовой зоны. Современные и исторические землетрясения оказывают значительное влияние на формирование донных отложений в этом глубоком тектоническом бассейне. В статье представлены результаты международных исследований за период 1996–2019 гг. Для обнаружения следов сейсмических событий в самых верхних слоях отложений (<1.5 м) были отобраны короткие керны по всему озеру. Приведены карты с точками отбора кернов и сейсмичностью озера. Литологический состав, данные измерения магнитной восприимчивости, оценка органических и неорганических компонентов осадков позволяют определить индикаторы землетрясений в донных отложениях озера. Следы исторических землетрясений были обнаружены в пределах Южной котловины Байкала (районы станций Шарыжалгай и 106-й км Кругобайкальской железной дороги) и в заливе Провал рядом с дельтой р. Селенги.

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