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Évolution récente et sédimentation des plates-formes continentales de la Corse ArchiMer
Pluquet, Fabrice.
This work aimed at displaying and studying morphological and sedimentological features of Corsican seafloor from the coast to depths of -100m. It also aimed at a better knowledge of sediment dynamics under hydrodynamic conditions, and at a reconstitution of the late Quaternary shorelines evolution. Careful analysis of the bathymetry has revealed a very contrasted morphology between the different areas of Corsican shelves, as it has been displayed on an synthetic geomorphological map. In addition, an homogeneous and overall map of surficial sediments of the Corsican shelves seabed was established and two areas, the Balagne and Agriates' platforms to the North of Corsica, and the Bonifacio Straits to the South, were mapped into details. The various...
Tipo: Text Palavras-chave: Fossil shoreline; Late Quaternary; Habitats mapping; Sidescan sonar; Hydrodynamism; Sédimentology; Morphology; Bathymetry; Continental shelves; Corsica; Geosciences; Paléo rivage; Quaternaire récent; Cartographie d'habitats; Sonar latéral; Hydrodynamisme; Sédimentologie; Morphologie; Bathymétrie; Plates formes continentales; Corse; Géosciences.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/these-3363.pdf
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Approche sectorielle subtidale : Identification et caractérisation des habitats benthiques du secteur Glénan (Réseau de surveillance benthique - Région Bretagne) ArchiMer
Ehrhold, Axel; Blanchet, Aline; Hamon, Dominique.
Ifremer launched and coordinated the development of a strategy for the REBENT network (REseau BENThique) in 2000 to monitor the aftermath of the "Erika" oil spill in December 1999. Its aim is to provide consistent baseline knowledge about coastal benthic habitats and constitute a monitoring tool to detect changes at various scales over time and space. Sector-based seabed habitat mapping in shallow water (< 50 m deep), is currently being conducted throughout Brittany's coastal waters through a combination of geoacoustic marine systems and ground-truthing using biological grab sampling and seabed observations. Sedimentological and biological results on Glenan area emphasize a great diversity of subtidal habitats and marine species recognized. Sidescan...
Tipo: Text Palavras-chave: Haploops; Maerl; Bedforms; Bedload transport; Communities; Benthic macrofauna; Sidescan sonar; Habitats mapping; Glenan; Rebent; Haploops; Maërl; Figures sédimentaires; Dynamique sédimentaire; Peuplements; Macrofaune benthique; Sonar latéral; Cartographie d'habitats; Glénan; Rebent.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/rapport-2301.pdf
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