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Biogeosciences An interactive open-access journal of the European Geosciences Union
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BG | Volume 16, issue 10
Biogeosciences, 16, 2221–2232, 2019
https://doi.org/10.5194/bg-16-2221-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 16, 2221–2232, 2019
https://doi.org/10.5194/bg-16-2221-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 29 May 2019

Research article | 29 May 2019

Fracture-controlled fluid transport supports microbial methane-oxidizing communities at Vestnesa Ridge

Haoyi Yao et al.
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Cited articles  
Anders, M. H., Laubach, S. E., and Scholz, C. H.: Microfractures: A review, J. Struct. Geol., 69, 377–394, https://doi.org/10.1016/j.jsg.2014.05.011, 2014. 
Bernhard, J. M. and Panieri, G.: Keystone Arctic paleoceanographic proxy association with putative methanotrophic bacteria, Sci. Rep.-UK, 8, 10610, https://doi.org/10.1038/s41598-018-28871-3, 2018. 
Blees, J., Niemann, H., Wenk, C. B., Zopfi, J., Schubert, C. J., Jenzer, J. S., Veronesi, M., and Lehman, M. F.: Bacterial methanotrophs drive the formation of a seasonal anoxic benthic nepheloid layer in an alpine lake, Limnol. Oceanogr., 59, 1410–1420, https://doi.org/10.4319/lo.2014.59.4.1410, 2014. 
Boetius, A. and Suess, E.: Hydrate Ridge: a natural laboratory for the study of microbial life fueled by methane from near-surface gas hydrates, Chem. Geol., 205, 291–310, https://doi.org/10.1016/j.chemgeo.2003.12.034, 2004. 
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How methane is transported in the sediment is important for the microbial community living on methane. Here we report an observation of a mini-fracture that facilitates the advective gas transport of methane in the sediment, compared to the diffusive fluid transport without a fracture. We found contrasting bio-geochemical signals in these different transport modes. This finding can help to fill the gap in the fracture network system in modulating methane dynamics in surface sediments.
How methane is transported in the sediment is important for the microbial community living on...
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