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dc.contributor.authorKarstens, Jens
dc.contributor.authorHaflidason, Haflidi
dc.contributor.authorBecker, Lukas W.M.
dc.contributor.authorBerndt, Christian
dc.contributor.authorRüpke, Lars
dc.contributor.authorPlanke, Sverre
dc.contributor.authorLiebetrau, Volker
dc.contributor.authorSchmidt, Markus
dc.contributor.authorMienert, Jürgen
dc.date.accessioned2018-05-11T11:17:51Z
dc.date.available2018-05-11T11:17:51Z
dc.date.issued2018-02-12
dc.description.abstractLarge amounts of methane are stored in continental margins as gas hydrates. They are stable under high pressure and low, but react sensitively to environmental changes. Bottom water temperature and sea level changes were considered as main contributors to gas hydrate dynamics after the last glaciation. However, here we show with numerical simulations that pulses of increased sedimentation dominantly controlled hydrate stability during the end of the last glaciation offshore mid-Norway. Sedimentation pulses triggered widespread gas hydrate dissociation and explains the formation of ubiquitous blowout pipes in water depths of 600 to 800 m. Maximum gas hydrate dissociation correlates spatially and temporally with the formation or reactivation of pockmarks, which is constrained by radiocarbon dating of Isorropodon nyeggaensis bivalve shells. Our results highlight that rapid changes of sedimentation can have a strong impact on gas hydrate systems affecting fluid flow and gas seepage activity, slope stability and the carbon cycle.en_US
dc.descriptionSource at <a href= https://doi.org/10.1038/s41467-018-03043-z>https://doi.org/10.1038/s41467-018-03043-z</a>.en_US
dc.identifier.citationKarstens, J., Haflidason, H., Becker, L.W.M., Berndt, C., Rüpke, L.H., Planke, S., … Mienert, J. (2018). Glacigenic sedimentation pulses triggered postglacial gas hydrate dissociation. Nature Communications, 9(635), 1-11. https://doi.org/10.1038/s41467-018-03043-zen_US
dc.identifier.cristinIDFRIDAID 1564563
dc.identifier.doi10.1038/s41467-018-03043-z
dc.identifier.issn2041-1723
dc.identifier.urihttps://hdl.handle.net/10037/12716
dc.language.isoengen_US
dc.publisherNature Publishing Groupen_US
dc.relation.journalNature Communications
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/MCA/317217/EU/Glaciated North Atlantic Margins/GLANAM/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/223272/Norway/Centre for Earth Evolution and Dynamics/CEED/en_US
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::Hydrogeologi: 467en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Hydrogeology: 467en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Hydrologi: 454en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Hydrology: 454en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Sedimentologi: 456en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450::Sedimentology: 456en_US
dc.titleGlacigenic sedimentation pulses triggered postglacial gas hydrate dissociationen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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