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dc.contributor.authorPope, Ed Len
dc.contributor.authorTalling, Peter Jen
dc.contributor.authorHunt, James Een
dc.contributor.authorDowdeswell, Julianen
dc.contributor.authorAllin, Joshua Ren
dc.contributor.authorCartigny, Matthieu JBen
dc.contributor.authorLong, Daviden
dc.contributor.authorMozzato, Alessandroen
dc.contributor.authorStanford, Jennifer Den
dc.contributor.authorTappin, David Ren
dc.contributor.authorWatts, Millieen
dc.date.accessioned2016-09-29T14:24:26Z
dc.date.available2016-09-29T14:24:26Z
dc.date.issued2016-08-24en
dc.identifier.issn0277-3791
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/260452
dc.description.abstractThe full-glacial extent and deglacial behaviour of marine-based ice sheets, such as the Barents Sea Ice Sheet, is well documented since the Last Glacial Maximum about 20,000 years ago. However, reworking of older sea-floor sediments and landforms during repeated Quaternary advances across the shelf typically obscures their longer-term behaviour, which hampers our understanding. Here, we provide the first detailed long-term record of Barents Sea Ice Sheet advances, using the timing of debris-flows on the Bear Island Trough-Mouth Fan. Ice advanced to the shelf edge during four distinct periods over the last 140,000 years. By far the largest sediment volumes were delivered during the oldest advance more than 128,000 years ago. Later advances occurred from 68,000 to 60,000, 39,400 to 36,000 and 26,000 to 20,900 years before present. The debris-flows indicate that the dynamics of the Saalian and the Weichselian Barents Sea Ice Sheet were very different. The repeated ice advance and retreat cycles during the Weichselian were shorter lived than those seen in the Saalian. Sediment composition shows the configuration of the ice sheet was also different between the two glacial periods, implying that the ice feeding the Bear Island Ice stream came predominantly from Scandinavia during the Saalian, whilst it drained more ice from east of Svalbard during the Weichselian.
dc.description.sponsorshipThis research was supported by the UK NERC Arctic Research Programme under the project on whether climate change increases the landslide-tsunami risk to the UK (NE/K00008X/1; NE/K000187/1). E. Pope was supported by grant NE/K00008X/1. The crew and shipboard parties of the RV Pelagia and the RSS James Clark Ross (JCR) are thanked for their help in collection of the numerous cores involved in this project. Earlier work on the JCR was supported by NERC grant NER/T/S/2003/00318.
dc.languageEnglishen
dc.language.isoenen
dc.publisherElsevier
dc.rightsAttribution 4.0 International*
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleLong-term record of Barents Sea Ice Sheet advance to the shelf edge from a 140,000 year recorden
dc.typeArticle
dc.description.versionThis is the final version of the article. It first appeared from Elsevier at http://dx.doi.org/10.1016/j.quascirev.2016.08.014.en
prism.endingPage66
prism.publicationDate2016en
prism.publicationNameQuaternary Science Reviewsen
prism.startingPage55
prism.volume150en
dc.identifier.doi10.17863/CAM.4687
dcterms.dateAccepted2016-08-10en
rioxxterms.versionofrecord10.1016/j.quascirev.2016.08.014en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2016-08-24en
dc.contributor.orcidDowdeswell, Julian [0000-0003-1369-9482]
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idNERC (NE/K000187/1)
pubs.funder-project-idNERC (NER/T/S/2003/00318)


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International