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https://hdl.handle.net/10316/106142
Título: | A Possible Tsunami Deposit Associated to the CE 1755 Lisbon Earthquake on the Western Coast of Portugal | Autor: | Tudor, Mihaela Ramos-Pereira, Ana Costa, Pedro J. M. |
Palavras-chave: | tsunami inundation; sediment provenance; microtexture; morphoscopy | Data: | 2020 | Editora: | MDPI | Título da revista, periódico, livro ou evento: | Geosciences (Switzerland) | Volume: | 10 | Número: | 7 | Resumo: | The CE 1755 Lisbon tsunami was the largest historical tsunami to a ect the Atlantic coasts of Europe and North Africa. This study presents the results obtained from the application of di erent sedimentological techniques (e.g., grain size, morphoscopy, microtextural analysis, geochemistry, radiocarbon dating) on sediments retrieved from the Alcabrichel River alluvial plain (of about 500 m far away from its mouth and approximatively 50 km northwest of Lisbon, Portugal). The results allowed the identification of a sandy layer that was associated with the CE 1755 tsunami. Furthermore, a new microtextural semi-quantitative classification was applied to enhance the identification of extreme marine inundation deposits. Based on sedimentological data, three di erent tsunami inundation phases were identified, including two inundations and a likely backwash. This innovative work o ers physical evidence of the spatial presence of the CE 1755 tsunami event on the western coast of Europe. It also enables a reconstruction of tsunami inundation dynamics, with two flooding waves and an interspersed backwash. | URI: | https://hdl.handle.net/10316/106142 | ISSN: | 2076-3263 | DOI: | 10.3390/geosciences10070257 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Ciências da Terra - Artigos em Revistas Internacionais |
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A-possible-tsunami-deposit-associated-to-the-CE-1755-lisbon-earthquake-on-the-western-coast-of-PortugalGeosciences-Switzerland.pdf | 4.82 MB | Adobe PDF | Ver/Abrir |
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