| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Eruption of a deep-sea mud volcano triggers rapid sediment movement
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| Autores: |
Feseker, Tomas
Boetius, Antje
Wenzhofer, Frank
Blandin, Jerome
Olu, Karine
Yoerger, Dana R.
Camilli, Richard
German, Christopher R.
De Beer, Dirk
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| Data: |
2014-11-11
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| Ano: |
2014
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| Resumo: |
Submarine mud volcanoes are important sources of methane to the water column. However, the temporal variability of their mud and methane emissions is unknown. Methane emissions were previously proposed to result from a dynamic equilibrium between upward migration and consumption at the seabed by methane-consuming microbes. Here we show non-steady-state situations of vigorous mud movement that are revealed through variations in fluid flow, seabed temperature and seafloor bathymetry. Time series data for pressure, temperature, pH and seafloor photography were collected over 431 days using a benthic observatory at the active Hakon Mosby Mud Volcano. We documented 25 pulses of hot subsurface fluids, accompanied by eruptions that changed the landscape of the mud volcano. Four major events triggered rapid sediment uplift of more than a metre in height, substantial lateral flow of muds at average velocities of 0.4m per day, and significant emissions of methane and CO2 from the seafloor.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00245/35601/34137.pdf
https://archimer.ifremer.fr/doc/00245/35601/34138.pdf
DOI:10.1038/ncomms6385
https://archimer.ifremer.fr/doc/00245/35601/
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| Editor: |
Nature Publishing Group
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| Relação: |
info:eu-repo/grantAgreement/EC/FP7/226354/EU//HERMIONE
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| Formato: |
application/pdf
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| Fonte: |
Nature Communications (2041-1723) (Nature Publishing Group), 2014-11-11 , Vol. 5 , P. 1-8
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| Direitos: |
2014 Macmillan Publishers Limited. All rights reserved.
info:eu-repo/semantics/openAccess
restricted use
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