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dc.contributor.authorGeissler, Wolfram H.
dc.contributor.authorGebhardt, Catalina
dc.contributor.authorGross, Felix
dc.contributor.authorWollenburg, Jutta
dc.contributor.authorJensen, Laura
dc.contributor.authorSchmidt-Aursch, Mechita
dc.contributor.authorKrastel, Sebastian
dc.contributor.authorElger, Judith
dc.contributor.authorOsti, Giacomo
dc.date.accessioned2017-03-16T14:07:40Z
dc.date.available2017-03-16T14:07:40Z
dc.date.issued2016
dc.description.abstractSlope failure like in the Hinlopen/Yermak Megaslide is one of the major geohazards in a changing Arctic environment. We analysed hydroacoustic and 2D high-resolution seismic data from the apparently intact continental slope immediately north of the Hinlopen/Yermak Megaslide for signs of past and future instabilities. Our new bathymetry and seismic data show clear evidence for incipient slope instability. Minor slide deposits and an internally-deformed sedimentary layer near the base of the gas hydrate stability zone imply an incomplete failure event, most probably about 30000 years ago, contemporaneous to or shortly after the Hinlopen/Yermak Megaslide. An active gas reservoir at the base of the gas hydrate stability zone demonstrate that over-pressured fluids might have played a key role in the initiation of slope failure at the studied slope, but more importantly also for the giant HYM slope failure. To date, it is not clear, if the studied slope is fully preconditioned to fail completely in future or if it might be slowly deforming and creeping at present. We detected widespread methane seepage on the adjacent shallow shelf areas not sealed by gas hydrates.en_US
dc.description.sponsorshipFinancial support was provided by the Deutsche Forschungsgemeinschaft.en_US
dc.descriptionPublished version. Source at <a href=http://doi.org/10.1038/srep38529>http://doi.org/10.1038/srep38529</a>. License <a href=https://creativecommons.org/licenses/by/4.0/>CC BY 4.0</a>.en_US
dc.identifier.citationGeissler et al. Arctic megaslide at presumed rest. Scientific Reports. 2016;6en_US
dc.identifier.issn2045-2322
dc.identifier.otherFRIDAID 1411814
dc.identifier.other10.1038/srep38529
dc.identifier.urihttp://hdl.handle.net/10037/10744
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.journalScientific Reports
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/FundingProgram/223259/Norway///en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectNatural hazardsen_US
dc.subjectSolid Earth sciencesen_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450en_US
dc.titleArctic megaslide at presumed resten_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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