FN Archimer Export Format PT J TI Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea BT AF RIBOULOT, Vincent KER, Stephan SULTAN, Nabil THOMAS, Yannick MARSSET, Bruno SCALABRIN, Carla RUFFINE, Livio BOULART, Cedric ION, Gabriel AS 1:1;2:1;3:1;4:1;5:1;6:1;7:1;8:1;9:2; FF 1:PDG-REM-GM-LAD;2:PDG-REM-GM-LAD;3:PDG-REM-GM;4:PDG-REM-GM-LAD;5:PDG-REM-GM-LAD;6:PDG-REM-GM-LCG;7:PDG-REM-GM-LCG;8:PDG-REM-GM-LCG;9:; C1 IFREMER, REM GM, BP70, F-29280 Plouzane, France. Natl Inst Marine Geol & Geoecol, RO-024053 Bucharest, Romania. C2 IFREMER, FRANCE NIRD GEOECOMAR, ROMANIA SI BREST SE PDG-REM-GM-LAD PDG-REM-GM PDG-REM-GM-LCG IN WOS Ifremer jusqu'en 2018 DOAJ copubli-europe IF 11.878 TC 58 UR https://archimer.ifremer.fr/doc/00418/52981/53916.pdf https://archimer.ifremer.fr/doc/00418/52981/53917.pdf https://archimer.ifremer.fr/doc/00418/52981/53918.pdf LA English DT Article CR GHASS BO Pourquoi pas ? AB Gas hydrates, a solid established by water and gas molecules, are widespread along the continental margins of the world. Their dynamics have mainly been regarded through the lens of temperature-pressure conditions. A fluctuation in one of these parameters may cause destabilization of gas hydrate-bearing sediments below the seafloor with implications in ocean acidification and eventually in global warming. Here we show throughout an example of the Black Sea, the world’s most isolated sea, evidence that extensive gas hydrate dissociation may occur in the future due to recent salinity changes of the sea water. Recent and forthcoming salt diffusion within the sediment will destabilize gas hydrates by reducing the extension and thickness of their thermodynamic stability zone in a region covering at least 2800 square kilometers which focus seepages at the observed sites. We suspect this process to occur in other world regions (e.g., Caspian Sea, Sea of Marmara). PY 2018 PD JAN SO Nature Communications SN 2041-1723 PU Nature Publishing Group VL 9 IS 117 UT 000419658100016 BP 1 EP 8 DI 10.1038/s41467-017-02271-z ID 52981 ER EF