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| Pontee, Ni; Tastet, Jp; Masse, L. |
| The Medoc Peninsula is a triangular area of land between the Atlantic Ocean on the west and the Gironde estuary on the east. The Gironde, orientated SE-NW, is the largest estuary in France. On the Medoc Peninsula Holocene sediments cover a substratum of Tertiary limestones and Plio-Pleistocene fluvial terraces. The Gironde originated as an incised valley during the Weichselian glacio-eustatic fall (100 000-18 000 B.P.) and has acted as a sink for fine sediment throughout the Holocene sea level rise (SLR) (18 000 B.P. onwards). Conversely, the Atlantic littoral zone, characterised by sandy beaches and dunes, has been subjected to erosion throughout the Holocene transgression. The incised valley of the present Gironde was inundated by the sea approximately... |
| Tipo: Text |
Palavras-chave: Holocène; Changement côtier; Marais estuarien; Dune éolienne; Chenier; Holocene; Coastal change; Salt marsh; Aeolian dune; Chenier. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00326/43683/43191.pdf |
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| Anthony, Edward J.; Brunier, Guillaume; Gardel, Antoine; Hiwat, Michael. |
| The 350-km long coast of Suriname, South America, is part of a unique system in the world characterized by large-scale mud supply from the Amazon and exposed to Atlantic waves. Large banks migrate alongshore from the Amazon to the Orinoco delta, separated by ‘inter-bank’ zones. Banks dissipate waves, partially weld onshore, and are colonized by mangroves, whereas waves in inter-bank areas cause shoreline erosion, mitigated where rare cheniers develop. Cheniers assure coastal protection and recreational and ecosystem services, notably providing nesting sites for marine turtles. Cheniers are also under pressure from sand mining. In order to gain a better understanding of how these cheniers form and evolve, a study was conducted on Braamspunt beach, a major... |
| Tipo: Text |
Palavras-chave: Chenier; Amazon-Orinoco coast; Mud bank; Muddy Guianas coast; Beach morphodynamics. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00489/60088/63426.pdf |
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