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Disturbances in the primary stratigraphy of lake sediments on the Murmansk coast (Russia): their identification and relationship with catastrophic eventsстатья
Информация о цитировании статьи получена из
Web of Science,
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 13 мая 2020 г.
- Авторы: Nikolaeva S., Tolstobrov D., Tolstobrova A.
- Журнал: Baltica
- Том: 32
- Номер: 2
- Год издания: 2019
- Издательство: Lithuanian Academy of Sciences
- Местоположение издательства: Lithuania
- Первая страница: 156
- Последняя страница: 169
- DOI: 10.5200/baltica.2019.2.3
- Аннотация: The results of lithological, diatom analyses and radiocarbon dating of bottom sediments of small coastal lake basins along the Murmansk coast of the Barents Sea (the Kola Region, Russia) are presented. Sedimentary successions of two lakes reveal the presence of distinctive deposits, very different from the sediment above and below. These deposits are represented by erosional unconformity beds, gyttja and sand mixed with plant macrofossils, and characterized by changes in diatom flora and sand in a matrix of organic material. The sediments were deposited due to different catastrophic events: paleo-tsunami and paleo-earthquakes. According to radiocarbon analysis data, a tsunami occurred between 10,400–8200 cal yr BP and a paleo-earthquake occurred between 8200–7200 cal yr BP. We discuss various causes and mechanisms for the formation of disturbances in lake sediments, including the Storrega tsunami and paleo-earthquakes, which during and after deglaciation were strong and frequent.
- Добавил в систему: Николаева Светлана Борисовна