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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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| Jolivet, Morgane; Anthony, Edward J.; Gardel, Antoine; Brunier, Guillaume. |
| On the 1500 km-long mud-dominated Guianas coast of South America, between the mouths of the two mega-rivers, the Amazon and the Orinoco, debouch numerous small rivers draining the humid tropical/equatorial Guiana Shield. The geomorphic development of the mouths of these rivers reflects interactions among water discharge, fluvial sediment load, and the alongshore migration of Amazon-derived mud banks alternating with inter-bank areas. The mouth of the Maroni River, astride the French Guiana-Suriname border, shows advanced estuarine infill and geomorphic development characterized by a western (downdrift) side comprising numerous recent cheniers and an eastern (updrift) side bound by an old (>2000 years B.P.) chenier. A multi-decadal analysis of the beach... |
| Tipo: Text |
Palavras-chave: River mouth; Estuarine beach; Amazon-Orinoco coast; Mud bank; Beach morphodynamics. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00509/62041/66187.pdf |
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