FN Archimer Export Format PT J TI Sand bodies at the shelf edge in the Gulf of Lions (Western Mediterranean): Deglacial history and modern processes BT AF BASSETTI, Maria-Angela JOUET, Gwenael DUFOIS, Francois BERNE, Serge RABINEAU, Marina TAVIANI, M AS 1:1,2;2:1,2;3:3,4;4:1;5:2,6;6:5; FF 1:PDG-DOP-DCB-GM-LES;2:PDG-DOP-DCB-GM-LES;3:;4:PDG-DOP-DCB-GM-LES;5:;6:; C1 IFREMER, GM, F-29280 Plouzane, France. IUEM, UMR 6538, F-29280 Plouzane, France. IFREMER, ECTO, F-29280 Plouzane, France. INFM, IRSN, F-83507 La Seyne Sur Mer, France. CNR, ISMAR, I-40126 Bologna, Italy. C2 IFREMER, FRANCE IUEM, FRANCE IFREMER, FRANCE IRSN, FRANCE CNR, ITALY CNRS, FRANCE SI BREST TOULON SE PDG-DOP-DCB-GM-LES PDG-DOP-DCB-DYNECO-PHYSED IN WOS Ifremer jusqu'en 2018 copubli-france copubli-europe copubli-univ-france IF 2.029 TC 63 TU Centre national de la recherche scientifique Institut de recherche pour le développement Institut français de recherche pour l'exploitation de la mer Service Hydrographique et Océanographique de la Marine Université de Bretagne Occidentale Université de Bretagne-Sud UR https://archimer.ifremer.fr/doc/2006/publication-2321.pdf https://archimer.ifremer.fr/doc/2006/sup-2321.pdf LA English DT Article CR BASAR 1 BASAR 2 BEACHMED CALMAR99 GMO2 IMAGES V LEG 1-MD114 IMAGES V LEG 4-MD114 MARION STRATAFORM 1 BO L'Europe Le Suroît Thalia Marion Dufresne DE ;Gulf of Lions;Sand transport;Deglacial transgression;Outer shelf;Sand ridges AB The outer continental shelf of the Gulf of Lions is covered by thick, mainly regressive, sand deposits. A combination of seismic, sedimentological and geochronological methods allows us to demonstrate that a veneer of transgressive sand bodies, few m to less than 1 m thick, reworks these deposits. They take the form of sand ridges and transverse dunes that formed at different periods. In fact, the low-gradient outer shelf of the Gulf of Lions displays a complete record of deglacial history, including not only transgressive deposits that formed during sea-level rise, but also bedfonns that still evolve under episodic high-energy events that occur under more highstand conditions. Core lithology, C-14 dates and regional sea-level curve suggest that the formation of the sand ridges was favoured during a period of deceleration of sea-level rise, such as during the Younger Dryas event. The dunes are part of a "mobile carpet" (here U160). The deposition of this marine sand veneer is possibly related to the interplay between different factors that trigger the turning on/off for bottom currents sand deposition/transport on the outer shelf. In fact, the sands appear to have been reworked intermittently due to high-energy conditions in shallow water depth (currents, wave regime and wind-driven circulation) as well as they form current ridges superimposed to the transgressive deposits in the westernmost part of the studied area (at the Bourcart Canyon's head). PY 2006 PD DEC SO Marine Geology SN 0025-3227 PU Elsevier VL 234 IS 1-4 UT 000243253100006 BP 93 EP 109 DI 10.1016/j.margeo.2006.09.010 ID 2321 ER EF