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dc.contributor.authorHong, Wei-Li
dc.contributor.authorTorres, Marta E.
dc.contributor.authorCarroll, JoLynn
dc.contributor.authorCremiere, Antoine
dc.contributor.authorPanieri, Giuliana
dc.contributor.authorYao, Haoyi
dc.contributor.authorSerov, Pavel
dc.date.accessioned2017-12-09T10:50:01Z
dc.date.available2017-12-09T10:50:01Z
dc.date.issued2017-06-07
dc.description.abstractArctic gas hydrate reservoirs located in shallow water and proximal to the sediment-water interface are thought to be sensitive to bottom water warming that may trigger gas hydrate dissociation and the release of methane. Here, we evaluate bottom water temperature as a potential driver for hydrate dissociation and methane release from a recently discovered, gas-hydrate-bearing system south of Spitsbergen (Storfjordrenna, B 380 m water depth). Modelling of the non-steady-state porewater profiles and observations of distinct layers of methane-derived authigenic carbonate nodules in the sediments indicate centurial to millennial methane emissions in the region. Results of temperature modelling suggest limited impact of short-term warming on gas hydrates deeper than a few metres in the sediments. We conclude that the ongoing and past methane emission episodes at the investigated sites are likely due to the episodic ventilation of deep reservoirs rather than warming-induced gas hydrate dissociation in this shallow water seep site.en_US
dc.descriptionSource at <a href=http://dx.doi.org/10.1038/ncomms15745> http://dx.doi.org/10.1038/ncomms15745 </a>en_US
dc.identifier.citationHong H, Torres ME, Carroll J, Cremiere A, Panieri G, Yao H, Serov P. Seepage from an arctic shallow marine gas hydrate reservoir is insensitive to momentary ocean warming. Nature Communications. 2017;8(15745 ):1-13en_US
dc.identifier.cristinIDFRIDAID 1474535
dc.identifier.doi10.1038/ncomms15745
dc.identifier.issn2041-1723
dc.identifier.urihttps://hdl.handle.net/10037/11834
dc.language.isoengen_US
dc.publisherNature Publishing Groupen_US
dc.relation.ispartofSerov, P. (2019). Cryosphere-controlled methane release throughout the last glacial cycle. (Doctoral thesis). <a href=https://hdl.handle.net/10037/15559>https://hdl.handle.net/10037/15559</a>.
dc.relation.journalNature Communications
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Marin geologi: 466en_US
dc.titleSeepage from an arctic shallow marine gas hydrate reservoir is insensitive to momentary ocean warmingen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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