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dc.contributor.authorRegnéll, Carl
dc.contributor.authorMangerud, Jan
dc.contributor.authorSvendsen, John-Inge
dc.date.accessioned2020-04-03T07:48:53Z
dc.date.available2020-04-03T07:48:53Z
dc.date.issued2019-08-08
dc.PublishedRegnéll C, Mangerud J, Svendsen J. Tracing the last remnants of the Scandinavian Ice Sheet: Ice-dammed lakes and a catastrophic outburst flood in northern Sweden. Quaternary Science Reviews. 2019;221:105862eng
dc.identifier.issn0277-3791en_US
dc.identifier.issn1873-457Xen_US
dc.identifier.urihttps://hdl.handle.net/1956/21672
dc.description.abstractWe present geomorphological evidence of large, previously undocumented, early Holocene ice-dammed lakes in the Scandinavian Mountains of northwestern Sweden. The lakes extents indicate that the last remnants of the Scandinavian Ice Sheet were located east of the mountain range. Some early pioneering works have presented similar reconstructions, whereas more recently published reconstructions place the last ice remnants in the high mountains of Sarek. Using high-resolution airborne LiDAR data we have mapped a large number of hitherto undocumented shorelines in some of the main valleys within the northern Scandinavian mountain range. Our results indicate that a larger system of ice-dammed lakes existed in this region than previously thought. The lakes were dammed between the main water divide to the west and the retreating ice sheet margin to the east. The shorelines dip towards the northwest with gradients ranging from 0.5 to 0.4 m/km, from the oldest to the youngest. Further, we have compiled Lateglacial and Holocene shoreline data along the Norwegian coast and from within the Baltic Sea basin and reconstructed the isostatic uplift along a 1400 km long northwest-southeast transect from the Norwegian Sea to Lake Ladoga. By comparing the measured ice-dammed lake shoreline gradients to the dated marine shorelines, we infer that the lakes may have existed for several centuries following 10.2 cal ka BP. We also describe large deposits and extensive erosive features, which demonstrate that a catastrophic glacial lake outburst flood (GLOF) took place eastward along the Pite River Valley. Based on cross-cutting relations to raised shorelines developed in the early Holocene Ancylus Lake (Baltic Sea basin) we conclude that the flood and thus the final phase of deglaciation took place within the time interval 10.3–9.9 cal ka BP.en_US
dc.language.isoengeng
dc.publisherElsevier Ltd.en_US
dc.rightsAttribution CC BYeng
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/eng
dc.subjectQuaternaryeng
dc.subjectGlaciationeng
dc.subjectScandinaviaeng
dc.subjectGeomorphologyeng
dc.subjectGlacialeng
dc.subjectDeglaciationeng
dc.subjectIDLeng
dc.subjectGLOFeng
dc.subjectFennoscandian ice sheeteng
dc.subjectEarly Holoceneeng
dc.subjectIsostasyeng
dc.titleTracing the last remnants of the Scandinavian Ice Sheet: Ice-dammed lakes and a catastrophic outburst flood in northern Swedenen_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2019-11-27T12:10:49Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2019 The Author(s)en_US
dc.identifier.doihttps://doi.org/10.1016/j.quascirev.2019.105862
dc.identifier.cristin1728314
dc.source.journalQuaternary Science Reviews
dc.relation.projectNorges forskningsråd: 255415


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