FN Archimer Export Format
PT J
TI New insights into the transport processes controlling the sulfate-methane-transition-zone near methane vents
BT 
AF SULTAN, Nabil
   GARZIGLIA, Sebastien
   RUFFINE, Livio
AS 1:1;2:1;3:1;
FF 1:PDG-REM-GM;2:PDG-REM-GM-LAD;3:PDG-REM-GM-LCG;
C1 Inst Carnot Ifremer EDROME, IFREMER, REM GM LAD, Paris, France.
C2 IFREMER, FRANCE
SI BREST
SE PDG-REM-GM
   PDG-REM-GM-LAD
   PDG-REM-GM-LCG
IN WOS Ifremer jusqu'en 2018
   DOAJ
IF 4.259
TC 17
UR https://archimer.ifremer.fr/doc/00339/45068/44493.pdf
LA English
DT Article
CR GUINECO-MEBO
BO Pourquoi pas ?
AB Over the past years, several studies have raised concerns about the possible interactions between methane hydrate decomposition and external change. To carry out such an investigation, it is essential to characterize the baseline dynamics of gas hydrate systems related to natural geological and sedimentary processes. This is usually treated through the analysis of sulfate-reduction coupled to anaerobic oxidation of methane (AOM). Here, we model sulfate reduction coupled with AOM as a two-dimensional (2D) problem including, advective and diffusive transport. This is applied to a case study from a deep-water site off Nigeria’s coast where lateral methane advection through turbidite layers was suspected. We show by analyzing the acquired data in combination with computational modeling that a two-dimensional approach is able to accurately describe the recent past dynamics of such a complex natural system. Our results show that the sulfate-methane-transition-zone (SMTZ) is not a vertical barrier for dissolved sulfate and methane. We also show that such a modeling is able to assess short timescale variations in the order of decades to centuries.
PY 2016
PD MAY
SO Scientific Reports
SN 2045-2322
PU Nature Publishing Group
VL 6
IS 26701
UT 000376716100001
DI 10.1038/srep26701
ID 45068
ER

EF