| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Holocene formation and evolution of coastal dunes ridges, Brittany (France)
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| Autores: |
Van Vliet-lanoe, Brigitte
Goslin, Jerome
Henaff, Alain
Hallegouet, Bernard
Delacourt, Christophe
Le Cornec, Erwan
Meurisse-fort, Murielle
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| Data: |
2016-07
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| Ano: |
2016
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| Palavras-chave: |
Dunes
Holocene
Climate
Sand starvation
Anthropic perturbation
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| Resumo: |
Holocene coastal dune formation under a continuously rising sea level (SL) is an abnormal response to increasing storm frequency. The aim of this work is to understand the coastal sedimentary budget and the present-day sand starvation, controlled by climate and man. Dating in Brittany shows that Aeolian deposition initiated from ca. 4000 cal BP, with the slowing down of the SL rise. Pre-historical dunes appeared here from ca. 3000 cal BP, without SL regression. After, further building phases recycled the same stock of sands. Historical dunes I developed from ca. 350 AD. Major storms between 900 and 1200 AD resulted in the construction of washover coastal ridges, the Historical dunes II. A part of the sand was evacuated offshore. From ca. 1350 AD, the pre-existing ridges are reworked forming the Historical dunes III, leading to rapid coastal erosion and inland drift. Holocene dunes with a rising SL constitute a temporary anomaly, mostly forced by man, soon erased by storms in Brittany. (C) 2015 Academie des sciences. Published by Elsevier Masson SAS.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00591/70262/68321.pdf
DOI:10.1016/j.crte.2015.01.001
https://archimer.ifremer.fr/doc/00591/70262/
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| Editor: |
Elsevier France-editions Scientifiques Medicales Elsevier
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| Formato: |
application/pdf
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| Fonte: |
Comptes Rendus Geoscience (1631-0713) (Elsevier France-editions Scientifiques Medicales Elsevier), 2016-07 , Vol. 348 , N. 6 , P. 462-470
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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