FN Archimer Export Format PT J TI The provenance of sediments in the Gulf of Lions, western Mediterranean Sea BT AF REVILLON, Sidonie JOUET, Gwenael BAYON, Germain RABINEAU, Marina DENNIELOU, Bernard HEMOND, Christophe BERNE, Serge AS 1:1,2;2:2;3:2;4:1,4;5:2;6:1;7:2,3; FF 1:;2:PDG-REM-GM-LES;3:PDG-REM-GM-LGM;4:;5:PDG-REM-GM-LES;6:;7:PDG-REM-GM-LES; C1 Univ Bretagne Occidentale, UMR 6538, IUEM, F-29280 Plouzane, France IFREMER, Dept Geosci Marines, F-29280 Plouzane, France Univ Perpignan, CEFREM, F-66860 Perpignan, France C2 UBO, FRANCE IFREMER, FRANCE UNIV PERPIGNAN, FRANCE CNRS, FRANCE SI BREST SE PDG-REM-GM-LGM PDG-REM-GM-LES EXTERIEUR IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france IF 3.021 TC 29 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 Université de Perpignan - Via Domitia UR https://archimer.ifremer.fr/doc/00043/15376/12734.pdf LA English DT Article CR BEACHMED GMO2 - CARNAC IMAGES V LEG 1-MD114 IMAGES V LEG 4-MD114 IMAGES V LEG 5 BO Le Suroît Marion Dufresne DE ;geochemistry;provenance;sediment;weathering AB In this study, we undertook a reconnaissance study of sediments provenance in the Gulf of Lions focusing over the last 16 ka. We used geochemical and isotopic tracers to determine the source of sediments and give insight into the weathering conditions prevailing. Sediments samples were selected both onshore and offshore from the western, eastern, and central part of the Gulf of Lions. We analyzed bulk sediments, coarse and fine silt, and clay fractions. Elemental and Nd isotope compositions appeared to differ from one grain size fraction to another one. These are interpreted in terms of zircon addition in the coarse silt fraction for the elemental concentrations and variable sources influences for the Nd isotope compositions. Our results indicate that sediments in the Gulf of Lions mainly originated from the Rhone River watershed although a contribution of Saharan dust is seen in one sample. Influence of Pyrenean small rivers is minor in these samples. Some Sr isotope compositions shifts are interpreted as reflecting variable amounts of chemical weathering that are consistent with published paleoclimatic reconstructions. PY 2011 PD AUG SO Geochemistry Geophysics Geosystems SN 1525-2027 PU Amer Geophysical Union VL 12 IS Q08006 UT 000293914100003 DI 10.1029/2011GC003523 ID 15376 ER EF