FN Archimer Export Format
PT J
TI Gas hydrate dissociation linked to contemporary ocean warming in the southern hemisphere
BT 
AF Ketzer, Marcelo
   Praeg, Daniel
   Rodrigues, Luiz F.
   Augustin, Adolpho
   Pivel, Maria A. G.
   Rahmati-Abkenar, Mahboubeh
   Miller, Dennis J.
   Viana, Adriano R.
   Cupertino, José A.
AS 1:1;2:2,3;3:3;4:3;5:4;6:1;7:5;8:5;9:3;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 Department of Biology and Environmental Science, Faculty of Health and Life Sciences Linnaeus University, SE-391 81, Kalmar, Sweden
   Géoazur, 250 rue Albert Einstein, 06560, Valbonne, France
   Petroleum and Natural Resources Institute, Pontificia Universidade Catolica do Rio Grande do Sul, Porto Alegre, CEP 91619-900, Brazil
   Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, CEP 91509-900, Brazil
   Petrobras Petroleo Brasileiro SA, Rio de Janeiro, CEP 20031-170, Brazil
C2 UNIV LINNAEUS, SWEDEN
   UNIV NICE, FRANCE
   PONTIFICIA UNIV CATOLICA RIO GRANDE SUL, BRAZIL
   UNIV FED RIO GRANDE DO SUL, BRAZIL
   PETROBRAS SA, BRAZIL
IN DOAJ
IF 14.919
TC 50
UR https://archimer.ifremer.fr/doc/00643/75473/76300.pdf
   https://archimer.ifremer.fr/doc/00643/75473/76301.pdf
   https://archimer.ifremer.fr/doc/00643/75473/76302.docx
   https://archimer.ifremer.fr/doc/00643/75473/76303.xlsx
   https://archimer.ifremer.fr/doc/00643/75473/76304.xlsx
   https://archimer.ifremer.fr/doc/00643/75473/76305.xlsx
   https://archimer.ifremer.fr/doc/00643/75473/76306.xlsx
   https://archimer.ifremer.fr/doc/00643/75473/76307.mp4
   https://archimer.ifremer.fr/doc/00643/75473/76308.pdf
LA English
DT Article
CR MD 195 / CONEGAS-2
BO Marion Dufresne
AB Ocean warming related to climate change has been proposed to cause the dissociation of gas hydrate deposits and methane leakage on the seafloor. This process occurs in places where the edge of the gas hydrate stability zone in sediments meets the overlying warmer oceans in upper slope settings. Here we present new evidence based on the analysis of a large multidisciplinary and multi-scale dataset from such a location in the western South Atlantic, which records massive gas release to the ocean. The results provide a unique opportunity to examine ocean-hydrate interactions over millennial and decadal scales, and the first evidence from the southern hemisphere for the effects of contemporary ocean warming on gas hydrate stability. Widespread hydrate dissociation results in a highly focused advective methane flux that is not fully accessible to anaerobic oxidation, challenging the assumption that it is mostly consumed by sulfate reduction before reaching the seafloor. 
PY 2020
PD JUN
SO Nature Communications
SN 2041-1723
PU Springer Science and Business Media LLC
VL 11
IS 1
UT 000558642500008
DI 10.1038/s41467-020-17289-z
ID 75473
ER

EF