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dc.contributor.authorAllaart, Lis
dc.contributor.authorMüller, Juliane
dc.contributor.authorSchomacker, Anders
dc.contributor.authorRydningen, Tom Arne
dc.contributor.authorHåkansson, Lena
dc.contributor.authorKjellman, Sofia Elisabeth
dc.contributor.authorMollenhauer, Gesine
dc.contributor.authorForwick, Matthias
dc.date.accessioned2020-06-04T06:18:12Z
dc.date.available2020-06-04T06:18:12Z
dc.date.issued2020-04-10
dc.description.abstractThe deglaciation history and Holocene environmental evolution of northern Wijdefjorden, Svalbard, are reconstructed using sediment cores and acoustic data (multibeam swath bathymetry and sub‐bottom profiler data). Results reveal that the fjord mouth was deglaciated prior to 14.5±0.3 cal. ka BP and deglaciation occurred stepwise. Biomarker analyses show rapid variations in water temperature and sea ice cover during the deglaciation, and cold conditions during the Younger Dryas, followed by minimum sea ice cover throughout the Early Holocene, until c . 7 cal. ka BP . Most of the glaciers in Wijdefjorden had retreated onto land by c . 7.6±0.2 cal. ka BP . Subsequently, the sea‐ice extent increased and remained high throughout the last part of the Holocene. We interpret a high Late Holocene sediment accumulation rate in the northernmost core to reflect increased sediment flux to the site from the outlet of the adjacent lake Femmilsjøen, related to glacier growth in the Femmilsjøen catchment area. Furthermore, increased sea ice cover, lower water temperatures and the re‐occurrence of ice‐rafted debris indicate increased local glacier activity and overall cooler conditions in Wijdefjorden after c . 0.5 cal. ka BP . We summarize our findings in a conceptual model for the depositional environment in northern Wijdefjorden from the Late Weichselian until present.en_US
dc.identifier.citationAllaart L, Müller J, Schomacker A, Rydningen TA, Håkansson L, Kjellman SE, Mollenhauer G, Forwick M. Late Quaternary glacier and sea-ice history of northern Wijdefjorden, Svalbard. Boreas. 2020:1-21en_US
dc.identifier.cristinIDFRIDAID 1813486
dc.identifier.doi10.1111/bor.12435
dc.identifier.issn0300-9483
dc.identifier.issn1502-3885
dc.identifier.urihttps://hdl.handle.net/10037/18444
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.ispartofAllaart, L. (2021). Late Pleistocene-Holocene history of Svalbard ice caps and glaciers – integrating marine, terrestrial and lacustrine archives. (Doctoral thesis). <a href=https://hdl.handle.net/10037/20634>https://hdl.handle.net/10037/20634</a>.
dc.relation.journalBoreas
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2020 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400::Geosciences: 450en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Geofag: 450en_US
dc.titleLate Quaternary glacier and sea-ice history of northern Wijdefjorden, Svalbarden_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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