Author
Listed:
- Tomas Feseker
(MARUM—Center for Marine Environmental Sciences and Faculty of Geosciences, University of Bremen
GEOMAR, Helmholtz Centre for Ocean Research Kiel)
- Antje Boetius
(MARUM—Center for Marine Environmental Sciences and Faculty of Geosciences, University of Bremen
HGF-MPG Group for Deep Sea Ecology and Technology, Alfred Wegener Institute
Max Planck Institute for Marine Microbiology)
- Frank Wenzhöfer
(HGF-MPG Group for Deep Sea Ecology and Technology, Alfred Wegener Institute
Max Planck Institute for Marine Microbiology)
- Jerome Blandin
(Ifremer, Institut Carnot EDROME)
- Karine Olu
(Ifremer, Institut Carnot EDROME, REM/EEP, Laboratoire Environnement Profond)
- Dana R. Yoerger
(Woods Hole Oceanographic Institution (WHOI))
- Richard Camilli
(Woods Hole Oceanographic Institution (WHOI))
- Christopher R. German
(Woods Hole Oceanographic Institution (WHOI))
- Dirk de Beer
(Max Planck Institute for Marine Microbiology)
Abstract
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 Håkon 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 0.4 m per day, and significant emissions of methane and CO2 from the seafloor.
Suggested Citation
Tomas Feseker & Antje Boetius & Frank Wenzhöfer & Jerome Blandin & Karine Olu & Dana R. Yoerger & Richard Camilli & Christopher R. German & Dirk de Beer, 2014.
"Eruption of a deep-sea mud volcano triggers rapid sediment movement,"
Nature Communications, Nature, vol. 5(1), pages 1-8, December.
Handle:
RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms6385
DOI: 10.1038/ncomms6385
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