| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Freshwater lake to salt-water sea causing widespread hydrate dissociation in the Black Sea
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| Autores: |
Riboulot, Vincent
Ker, Stephan
Sultan, Nabil
Thomas, Yannick
Marsset, Bruno
Scalabrin, Carla
Ruffine, Livio
Boulart, Cedric
Ion, Gabriel
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| Data: |
2018-01
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| Ano: |
2018
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| Resumo: |
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).
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
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
DOI:10.1038/s41467-017-02271-z
https://archimer.ifremer.fr/doc/00418/52981/
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| Editor: |
Nature Publishing Group
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| Formato: |
application/pdf
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| Fonte: |
Nature Communications (2041-1723) (Nature Publishing Group), 2018-01 , Vol. 9 , N. 117 , P. 1-8
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| Direitos: |
The Author(s) 2017
info:eu-repo/semantics/openAccess
restricted use
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