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dc.contributor.authorHimmler, Tobias
dc.contributor.authorWagner, Doris
dc.contributor.authorSahy, Diana
dc.contributor.authorVadakkepuliyambatta, Sunil
dc.contributor.authorChand, Shyam
dc.contributor.authorMartma, Tõnu
dc.contributor.authorKirsimäe, Kalle
dc.contributor.authorMattingsdal, Rune
dc.contributor.authorPanieri, Giuliana
dc.contributor.authorBünz, Stefan
dc.contributor.authorCondon, Daniel J.
dc.contributor.authorKnies, Jochen Manfred
dc.contributor.authorLepland, Aivo
dc.date.accessioned2024-03-04T14:36:55Z
dc.date.available2024-03-04T14:36:55Z
dc.date.issued2024-03-01
dc.description.abstractThe hydrocarbon seepage chronology during deglaciation across the formerly glaciated Barents Sea was established using uranium-thorium (U–Th) dating of seep carbonates. Seep carbonates were sampled with remotely operated vehicles (ROV) from the seafloor at three active hydrocarbon seeps (water depth 156–383 m), located in the north-west (Storfjordrenna), north-central (Storbanken High), and south-west (Loppa High) Barents Sea. Overall, the U–Th dates range from 13.5 to 1.2 thousand years (ka) before present, indicating episodic seep carbonate formation since the late Pleistocene throughout the Holocene. The new U–Th dates indicate protracted post-glacial gas seepage, congruent with previously published seep carbonate ages from the south-west Barents Sea. Gas hydrate dissociation and associated seep carbonate formation occurred at Storfjordrenna between ≈6 and 1.2 ka, and around 13.5 and 6 ka at Storbanken. Early and late Holocene seep carbonate ages from Loppa High support post-glacial seismic activity as potential seepage trigger mechanismen_US
dc.identifier.citationHimmler T, Wagner D, Sahy D, Vadakkepuliyambatta S, Chand S, Martma T, Kirsimäe K, Mattingsdal R, Panieri G, Bünz S, Condon DJ, Knies J, Lepland A. Protracted post-glacial hydrocarbon seepage in the Barents Sea revealed by U–Th dating of seep carbonates. Frontiers in Earth Science. 2024en_US
dc.identifier.cristinIDFRIDAID 2251241
dc.identifier.doi10.3389/feart.2024.1355621
dc.identifier.issn2296-6463
dc.identifier.urihttps://hdl.handle.net/10037/33104
dc.language.isoengen_US
dc.publisherFrontiers Mediaen_US
dc.relation.journalFrontiers in Earth Science
dc.relation.projectIDNorges forskningsråd: 255150en_US
dc.relation.projectIDNorges forskningsråd: 223259en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleProtracted post-glacial hydrocarbon seepage in the Barents Sea revealed by U–Th dating of seep carbonatesen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)