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| Traoré, Kalil; Menier, David; Gensac, Erwan; Le Roy, Pascal; Lambert, Clément; Bessin, Paul; Pédoja, Kevin; Duperret, Anne; Le Gall, Romain. |
| The morphology and internal structure of the Horaine Bank (Bay of Saint-Brieuc, NW France) are described based on multibeam echosounder and high-resolution seismic datasets coupled with vibro-core data. The Horaine Bank shows large-scale bedforms in the lee of a submerged rocky shoal, which allowed defining it as a Banner Bank. The internal structure of the sandbank reveals four seismic units (U1–U4) on a Cambrian basement (U0). The basal unit U1 is interpreted as reworked lowstand fluvial sediments those infilled micro incised valleys during a rise in sea level. This unit is overlain by paleo-coastal barrier sand-spit (U2) whose development was controlled by swell in the context of a rapid rise in sea level. The successive prograding unit (U3) is... |
| Tipo: Text |
Palavras-chave: Sand banks; Banner bank; Holocene climate; Geomorphology; Sea level rise; Tidal gyre.. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00685/79660/82424.pdf |
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