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) |