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| Urgeles, Roger; Cattaneo, Antonio; Puig, Pere; Liquete, Camino; De Mol, Ben; Amblas, David; Sultan, Nabil; Trincardi, Fabio. |
| Most Mediterranean prodeltas show undulated sediment features on the foresets of their Holocene wedges. These features have been described all along the Mediterranean for the last 30 years and interpreted as either soft sediment deformation and incipient landsliding, and more recently, as sediment transport structures. We perform a review and detailed analysis of these undulated sediment features using ultrahigh-resolution seismic and bathymetric data as well as geotechnical information and hydrodynamic time series and hydrographic transects. In this study we show that the characteristics of the sediment undulations (configuration of the reflections down section and between adjacent undulations and overall morphologic characteristics) are incompatible with... |
| Tipo: Text |
Palavras-chave: Undulated sediments; Prodeltas; Slope failure; Sediment waves; Hyperpycnal flows; Internal waves. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00043/15388/12841.pdf |
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| Frank, Norbert; Freiwald, Andre; Lopez Correa, Matthias; Wienberg, Claudia; Eisele, Markus; Hebbeln, Dierk; Van Rooij, David; Henriet, Jean-pierre; Colin, Christophe; Van Weering, Tjeerd; De Haas, Henk; Buhl-mortensen, Pal; Roberts, J. Murray; De Mol, Ben; Douville, Eric; Blamart, Dominique; Hatte, Christine. |
| U-series age patterns obtained on reef framework-forming cold-water corals collected over a nearly 6000-km-long continental margin sector, extending from off Mauritania (17 degrees N; northwest Africa) to the southwestern Barents Sea (70 degrees N; northeastern Europe), reveal strong climate influences on the geographical distribution and sustained development of these ecosystems. Over the past three glacial-interglacial cycles, framework-forming cold-water corals (Lophelia pertusa and Madrepora oculata) seem to have predominantly populated reefs, canyons, and patches in the temperate East Atlantic and the Mediterranean Sea. Above 50 degrees N corals colonize reefs in the northern East Atlantic primarily during warm climate periods with the biogeographic... |
| Tipo: Text |
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| Ano: 2011 |
URL: https://archimer.ifremer.fr/doc/00214/32554/31025.pdf |
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| De Mol, Ben; Kozachenko, M; Wheeler, Andy; Alvares, Hugo; Henriet, Jean-pierre; Olu, Karine. |
| High-resolution seismic profiles, swath bathymetry, side-scan sonar data and video imageries are analysed in this detailed study of five carbonate mounds from the Belgica mound province with special emphasis on the well-surveyed Therese Mound. The selected mounds are located in the deepest part of the Belgica mound province at water depths of 950 m. Seismic data illustrate that the underlying geology is characterised by drift sedimentation in a general northerly flowing current regime. Sigmoidal sediment bodies create local slope breaks on the most recent local erosional surface, which act as the mound base. No preferential mound substratum is observed, neither is there any indication for deep geological controls on coral bank development. Seismic evidence... |
| Tipo: Text |
Palavras-chave: Carbonate mounds; Cold water corals; Lophelia pertusa; Porcupine Seabight; Coral banks; Belgica mound province; Therese Mound. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2307.pdf |
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