FN Archimer Export Format
PT J
TI Major modification of sediment routing by a large Mass Transport Deposit in the Gulf of Lions (Western Mediterranean)
BT 
AF Dennielou, Bernard
   Jegou, I.
   Droz, Laurence
   Jouet, Gwenael
   Cattaneo, Antonio
   Berné, Serge
   Aslanian, Daniel
   Loubrieu, Benoit
   Rabineau, Marina
   Bermell, Sylvain
AS 1:1;2:1;3:2;4:1;5:1;6:1,3;7:1;8:1;9:2;10:1;
FF 1:PDG-REM-GM-LGS;2:;3:;4:PDG-REM-GM-LGS;5:PDG-REM-GM-LAD;6:PDG-REM-GM-LES;7:PDG-REM-GM-LGS;8:PDG-REM-GM-CTDI;9:;10:PDG-REM-GM-CTDI;
C1 IFREMER, Centre de Brest, Unité de Recherche Géosciences Marines, 29280 Plouzané, France
   UMR 6538 Géosciences Océan, Université de Brest, UBO, Institut Universitaire Européen de la Mer, France
   Université de Perpignan, Laboratoire CEFREM, UMR-CNRS 5110, 52 Av. P. Alduy, 66860 Perpignan, France
C2 IFREMER, FRANCE
   CNRS, FRANCE
   UNIV PERPIGNAN, FRANCE
SI BREST
SE PDG-REM-GM-LGS
   PDG-REM-GM-LAD
   PDG-REM-GM-LES
   PDG-REM-GM-CTDI
UM LGO
IN WOS Ifremer UPR
   copubli-france
   copubli-univ-france
IF 3.04
TC 12
UR https://archimer.ifremer.fr/doc/00480/59175/61813.pdf
LA English
DT Article
CR AM-MED-1
   CALMAR97
   GMO1
   GMO2 - CARNAC
   MARION
   MD 123 / GEOSCIENCES 1
   MELROSE SEEPGOL
   PROGRES
   RHOSOS
   SARDINIA
BO Le Suroît
   L'Atalante
   Marion Dufresne
DE ;Gulf of Lions;Ebro margin;Sediment routing;Rhone deep-sea fan;Canyon;Mass transport deposit;Turbidite
AB In the Gulf of Lions (Western Mediterranean), the emplacement of a large (160 km3) Mass Transport Deposit, the Rhone Western Mass Transport Deposit (RWMTD), at the base of slope, aside the Rhone deep-sea fan between 1800 and 2700 m water depth, resulted in a major modification of the sediment routing by clogging a drainage network and blocking at the base of slope sediments that were previously routed into the Valencia channel and the Balearic abyssal plain. The RWMTD was sourced from sediments of the western flank of the Rhone upper fan and the adjacent base of slope. The mass transport deposit is characterized by a transparent seismic facies and sediment cores show that it is composed of a stiff laminated muddy lithofacies characteristic of the Rhone fan turbidites with marked contorted beds indicative of remoulding. AMS radiocarbon dating shows that the RWMTD was emplaced between 19.9 and 21.5 ka cal BP. It is coeval, within dating uncertainties, with the emplacement of a megaturbidite in the Balearic Abyssal Plain and immediately predates a major avulsion of the Rhone turbidite channel that led to the emplacement of an avulsion lobe (the neofan) on top of the RWMTD. It is not possible to affirm a genetic link between these three major gravity events but one can argue that they share a common forcing in relation with massive turbiditic accumulation during the last sea-level lowstand at the end of the Last Glacial Maximum. This study outlines the importance of mass transport deposits in the building of turbidite systems and, more generally, the major control of mass wasting on the routing and dispersal of sediments across continental margins. 
PY 2019
PD MAY
SO Marine Geology
SN 0025-3227
PU Elsevier BV
VL 411
UT 000463302100001
BP 1
EP 20
DI 10.1016/j.margeo.2019.01.011
ID 59175
ER

EF