FN Archimer Export Format
PT J
TI Types of fluid-related features controlled by sedimentary cycles and fault network in deepwater Nigeria
BT 
AF MARSSET, Tania
   RUFFINE, Livio
   KER, Stephan
   CAUQUIL, E.
   GAY, Aurelien
AS 1:1;2:1;3:1;4:3;5:2;
FF 1:PDG-REM-GM-LGS;2:PDG-REM-GM-LCG;3:PDG-REM-GM-LAD;4:;5:;
C1 Ifremer Inst Francais Rech Exploitat Mer, UR GM, BP 70, F-29280 Plouzane, France.
   Univ Montpellier 2, Geosci Montpellier, UMR CC 5243 60, Pl E Bataillon, F-34095 Montpellier 5, France.
   TOTAL, Explorat & Prod, 24 Cours Michelet, F-92069 Paris, France.
C2 IFREMER, FRANCE
   UNIV MONTPELLIER, FRANCE
   TOTAL, FRANCE
SI BREST
SE PDG-REM-GM-LGS
   PDG-REM-GM-LCG
   PDG-REM-GM-LAD
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 3.538
TC 8
UR https://archimer.ifremer.fr/doc/00405/51650/52199.pdf
LA English
DT Article
CR ERIG 3D
   NERIS 1
   NERIS 2
   WACS
BO Pourquoi pas ?
   Le Suroît
   L'Atalante
DE ;Niger delta;Fluid flow;Pockmark;Gas hydrates;Methane-derived carbonate;Fault network;Sedimentary cycles
AB The seismic characteristics of focused fluid-related features such as pockmarks and carbonate build-ups on the Nigerian continental slope have been investigated using complementary seismic data sets (reprocessed 3D exploration data and 2D Very High Resolution hull-mounted and near-bottom seismic data) coupled with the results of previous studies (sedimentological, geotechnical and geochemical analyses). The results show different types of fluid-related features within the hemipelagic phase of long duration (∼1 Myr) Turbidite/Hemipelagic cycles. They are the product of the disturbance of the hosting sediments following two main distinct processes: (1) no or low sediment deposition caused by fluid escape associated with seafloor settlement (benthic fauna, carbonate precipitation, gas hydrate formation) and (2) post-depositional erosion, caused either by fluid release (dewatering from underlying features such as channels and upward migration from a deep source) or by collapse (destabilisation of gas hydrates). The temporal evolution reveals a decrease in fluid flow during the hemipelagic deposition as witnessed by the decrease in methanogenic activity and by gas hydrate destabilisation. The spatial distribution of fluid-related features seems to be controlled by the type of fault (small fault or structural lineament). 
PY 2018
PD JAN
SO Marine And Petroleum Geology
SN 0264-8172
PU Elsevier Sci Ltd
VL 89
IS Part.2
UT 000418977400007
BP 330
EP 349
DI 10.1016/j.marpetgeo.2017.10.004
ID 51650
ER

EF