FN Archimer Export Format
PT J
TI Mass-transport deposits and fluid venting in a transform margin setting, the eastern Demerara Plateau (French Guiana)
BT 
AF PATTIER, France
   LONCKE, L.
   GAULLIER, V.
   BASILE, C.
   MAILLARD, Alexandre
   IMBERT, Patrice
   ROEST, Walter
   VENDEVILLE, B. C.
   PATRIAT, Martin
   LOUBRIEU, Benoit
AS 1:1,2;2:1;3:1;4:3;5:4;6:5;7:2;8:6;9:2;10:2;
FF 1:PDG-REM-GM-LGG;2:;3:;4:;5:;6:;7:PDG-REM-GM-LGG;8:;9:PDG-REM-GM-LGG;10:PDG-REM-GM-CTDI;
C1 Univ Perpignan, Ctr Format & Rech Environm Mediterraneens, UMR 5110, F-66860 Perpignan, France.
   IFREMER, Ctr Brest, Inst Carnot, EDROME,UR Geosci Marines, F-29280 Plouzane, France.
   Univ Grenoble 1, CNRS, Observ Sci Univers Grenoble, ISTerre,UMR 5275, F-38400 St Martin Dheres, France.
   Univ Toulouse 3, GET, OMP, F-31400 Toulouse, France.
   Total CSTJF, F-64000 Pau, France.
   Univ Sci & Technol Lille 1, UFR Sci Terre, UMR Geosyst 8157, F-59655 Villeneuve Dascq, France.
C2 UNIV PERPIGNAN, FRANCE
   IFREMER, FRANCE
   UNIV GRENOBLE, FRANCE
   UNIV TOULOUSE, FRANCE
   TOTAL, FRANCE
   UNIV LILLE, FRANCE
SI BREST
   NOUMEA
SE PDG-REM-GM-LGG
   PDG-REM-GM-CTDI
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.469
TC 14
TU Centre national d'études spatiales
   Centre national de la recherche scientifique
   Institut de recherche pour le développement
   Institut français des sciences et technologies des transports, de l'aménagement et des réseaux
   Institut national de la recherche agronomique
   Université de Grenoble Alpes
   Université de Perpignan - Via Domitia
   Université de Savoie
   Université de Toulouse III - Paul Sabatier
   École nationale de météorologie de Toulouse
UR https://archimer.ifremer.fr/doc/00157/26850/25316.pdf
LA English
DT Article
CR GUYAPLAC
BO L'Atalante
DE ;Fluid ascent;Pockmarks;MTDs;Transform margin;Demerara Plateau
AB The eastern Demerara Plateau offshore French Guiana was surveyed in 2003 during the GUYAPLAC cruise (multibeam bathymetry and acoustic imagery, 6-channel seismic reflection and 3.5 kHz echo-sounding). The data show the "post-transform" Cenozoic that the series located on the outer part of the plateau (below c. 2000 m) contain at least twelve stacked mass transport deposits (MTDs) that have recorded a history of large-scale slope failure, as well as two main normal fault sets that provide possible pathways for upward fluid migration through the series, reaching at high as the uppermost MTDs. Seabed data show that the area above the failures is characterized by circular-to-elongate (slope-parallel) depressions interpreted as fluid seeps (pockmarks), some of them have been modified by along slope currents. We suggest that the development of the MTDs to results from the combinaiton of the presence of fluid overpressure at depth the geometry of the margin's deep structure, in particular the existence of a 'free borderlateral border' on the outermost plateau. Our results also emphasise the role of stratigraphic decollements within the Cenozoic series.
PY 2013
PD SEP
SO Marine And Petroleum Geology
SN 0264-8172
PU Elsevier Sci Ltd
VL 46
UT 000324223400018
BP 287
EP 303
DI 10.1016/j.marpetgeo.2013.06.010
ID 26850
ER

EF