FN Archimer Export Format
PT J
TI Pockmarks on the South Aquitaine Margin continental slope: The seabed expression of past fluid circulation and former bottom currents
BT 
AF MICHEL, Guillaume
   DUPRE, Stephanie
   BALTZER, Agnes
   EHRHOLD, Axel
   IMBERT, Patrice
   PITEL, Mathilde
   LOUBRIEU, Benoit
   SCALABRIN, Carla
   LAZURE, Pascal
   MARIE, Louis
   GELDOF, Jean-Baptiste
   DEVILLE, Eric
AS 1:1;2:1;3:2;4:1;5:3;6:1;7:1;8:1;9:4;10:4;11:5;12:6;
FF 1:;2:PDG-REM-GM-LAD;3:PDG-REM-GM-LGG;4:PDG-REM-GM-LGS;5:;6:PDG-REM-GM-CTDI;7:PDG-REM-GM-CTDI;8:PDG-REM-GM-LCG;9:PDG-ODE-LOPS-OC;10:PDG-ODE-LOPS-OC;11:;12:;
C1 IFREMER, Unite Geosci Marines, F-29280 Plouzane, France.
   Univ Nantes, CNRS, UMR 6554, F-44312 Nantes 3, France.
   Ctr Sci & Tech Jean Feger, TOTAL, Ave Larribau, F-64018 Pau, France.
   IFREMER, Lab Oceanog Phys & Spatiale, F-29280 Plouzane, France.
   TOTAL, 10 Pl Vosges, F-92072 Paris, France.
   IFP Energies Nouvelles, 1&4 Ave Bois Pre Preau, F-92852 Rueil Malmaison, France.
C2 IFREMER, FRANCE
   UNIV NANTES, FRANCE
   TOTAL, FRANCE
   IFREMER, FRANCE
   TOTAL, FRANCE
   IFP ENERGIES NOUVELLES, FRANCE
SI BREST
SE PDG-REM-GM-LAD
   PDG-REM-GM-LGG
   PDG-REM-GM-LGS
   PDG-REM-GM-CTDI
   PDG-REM-GM-LCG
   PDG-ODE-LOPS-OC
UM LOPS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 1.621
TC 21
UR https://archimer.ifremer.fr/doc/00413/52491/53279.pdf
   https://archimer.ifremer.fr/doc/00413/52491/53280.pdf
   https://archimer.ifremer.fr/doc/00413/52491/53282.jpg
   https://archimer.ifremer.fr/doc/00413/52491/53283.jpg
LA English
DT Article
CR ASPEX2
   BOBGEO2
   GAZCOGNE1
BO Le Suroît
DE ;Pockmark;Fluid;Seabed morphology;Aquitaine slope;GIS;Currents
AB Inactive and mostly elongated pockmarks of 100–200 m in dimension were recently discovered on the South Aquitaine Margin continental slope. They are distributed at water depths greater than 350 m in both interfluve and sediment-wave areas, and are strongly controlled by the sedimentary morphology and architecture. Water column and seafloor backscatter and sub-bottom profiler data do not exhibit present-day or past gas evidence, e.g., massive and continuous gas releases at the seabed and fossil methane-derived authigenic carbonates. It is thus proposed that the pockmarks originated from a shallow source and result from relatively recent and short-duration gas or water expulsion events. Former near-bottom currents may have contributed to the elongation of these WNW–ESE-oriented pockmarks, whereas present-day weaker near-bottom currents may induce upwelling, contributing to the maintenance of the elongated shapes of the pockmarks. 
PY 2017
PD DEC
SO Comptes Rendus Geoscience
SN 1631-0713
PU Elsevier France-editions Scientifiques Medicales Elsevier
VL 349
IS 8
UT 000418834100003
BP 391
EP 401
DI 10.1016/j.crte.2017.10.003
ID 52491
ER

EF