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Postglacial relative sea level change and glacier activity in the early and late Holocene: Wahlenbergfjorden, Nordaustlandet, Svalbard

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dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor.author Schomacker, Anders
dc.contributor.author Farnsworth, Wesley
dc.contributor.author Ingolfsson, Olafur
dc.contributor.author Allaart, Lis
dc.contributor.author Håkansson, Lena
dc.contributor.author Retelle, Michael
dc.contributor.author Siggaard-Andersen, Marie-Louise
dc.contributor.author Korsgaard, Niels Jákup
dc.contributor.author Rouillard, Alexandra
dc.contributor.author Kjellman, Sofia E.
dc.date.accessioned 2020-03-03T13:26:03Z
dc.date.available 2020-03-03T13:26:03Z
dc.date.issued 2019-05-01
dc.identifier.citation Schomacker, A., Farnsworth, W.R., Ingólfsson, Ó. et al. Postglacial relative sea level change and glacier activity in the early and late Holocene: Wahlenbergfjorden, Nordaustlandet, Svalbard. Sci Rep 9, 6799 (2019). https://doi.org/10.1038/s41598-019-43342-z
dc.identifier.issn 2045-2322
dc.identifier.uri https://hdl.handle.net/20.500.11815/1573
dc.description Publisher's version (útgefin grein).
dc.description.abstract Sediment cores from Kløverbladvatna, a threshold lake in Wahlenbergfjorden, Nordaustlandet, Svalbard were used to reconstruct Holocene glacier fluctuations. Meltwater from Etonbreen spills over a threshold to the lake, only when the glacier is significantly larger than at present. Lithological logging, loss-on-ignition, ITRAX scanning and radiocarbon dating of the cores show that Kløverbladvatna became isolated from Wahlenbergfjorden c. 5.4 cal. kyr BP due to glacioisostatic rebound. During the Late Holocene, laminated clayey gyttja from lacustrine organic production and surface runoff from the catchment accumulated in the lake. The lacustrine sedimentary record suggests that meltwater only spilled over the threshold at the peak of the surge of Etonbreen in AD 1938. Hence, we suggest that this was the largest extent of Etonbreen in the (mid-late) Holocene. In Palanderbukta, a tributary fjord to Wahlenbergfjorden, raised beaches were surveyed and organic material collected to determine the age of the beaches and reconstruct postglacial relative sea level change. The age of the postglacial raised beaches ranges from 10.7 cal. kyr BP at 50 m a.s.l. to 3.13 cal. kyr BP at 2 m a.s.l. The reconstructed postglacial relative sea level curve adds valuable spatial and chronological data to the relative sea level record of Nordaustlandet.
dc.description.sponsorship Sveinn Brynjólfsson and Sara Mollie Cohen are thanked for field assistance. Fieldwork and radiocarbon dates were funded by the Carlsberg Foundation (CF14-0756 to Schomacker) and Department of Arctic Geology, The University Centre in Svalbard (UNIS), respectively. Geospatial support was provided by the Polar Geospatial Center, and DEM(s) were created from DigitalGlobe, Inc., imagery and funded under National Science Foundation awards 1043681, 1559691, and 1542736. We thank Ole Bennike, Svend Funder, Antony Ruter, and Peter Ilsøe for macrofossil identification and lab assistance. The manuscript benefited from constructive review comments from Andy Emery. The publication charges for this article have been funded by a grant from the publication fund of UiT The Arctic University of Norway.
dc.format.extent 6799
dc.language.iso en
dc.publisher Springer Science and Business Media LLC
dc.relation.ispartofseries Scientific Reports;9(1)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Cryospheric science
dc.subject Palaeoclimate
dc.subject Fornveðurfræði
dc.subject Setlög
dc.subject Jöklafræði
dc.title Postglacial relative sea level change and glacier activity in the early and late Holocene: Wahlenbergfjorden, Nordaustlandet, Svalbard
dc.type info:eu-repo/semantics/article
dcterms.license Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
dc.description.version Peer Reviewed
dc.identifier.journal Scientific Reports
dc.identifier.doi 10.1038/s41598-019-43342-z
dc.contributor.department Faculty of Earth Sciences (UI)
dc.contributor.department Jarðvísindadeild (HÍ)
dc.contributor.school Verkfræði- og náttúruvísindasvið (HÍ)
dc.contributor.school School of Engineering and Natural Sciences (UI)

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