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Rethinking Late Weichselian ice-sheet dynamics in coastal NW Svalbard

2008; Wiley; Volume: 34; Issue: 1 Linguagem: Inglês

10.1111/j.1502-3885.2005.tb01001.x

1502-3885

Jon Y. Landvik, Ólafur Inǵólfsson, Jürgen Mienert, Scott J. Lehman, Anders Solheim, Anders Elverhøi, Dag Ottesen,

Polar Research and Ecology

BoreasVolume 34, Issue 1 p. 7-24 Free to Read Rethinking Late Weichselian ice-sheet dynamics in coastal NW Svalbard JON Y. LANDVIK, Corresponding Author JON Y. LANDVIK Department of Plant and Environmental Sciences, P.O. Box 5003, NO-1432 As, Norway (e-mail: [email protected]) Norwegian University of Life SciencesSearch for more papers by this author ÓLAFUR INGÓLFSSON, ÓLAFUR INGÓLFSSON Department of Geology and Geography, University of Iceland, IS-101 Reykjavik, IcelandSearch for more papers by this authorJÜRGEN MIENERT, JÜRGEN MIENERT University of Tromsø, Department of Geology, Dramsveien 201, NO-9037 Tromsø, NorwaySearch for more papers by this authorSCOTT J. LEHMAN, SCOTT J. LEHMAN University of Colorado, INSTAAR, Campus Box 450, Boulder, CO 80309, USASearch for more papers by this authorANDERS SOLHEIM, ANDERS SOLHEIM Norwegian Geotechnical Institute, P.O. Box 3930 Ullevaal Stadion, NO-0806 Oslo, NorwaySearch for more papers by this authorANDERS ELVERHØI, ANDERS ELVERHØI University of Oslo, Department of Geosciences, P.O. Box 1047 Blindern, NO-0316 Oslo, NorwaySearch for more papers by this authorDAG OTTESEN, DAG OTTESEN Geological Survey of Norway, Leiv Eiriksons vei 39, NO-7491 Trondheim, NorwaySearch for more papers by this author JON Y. LANDVIK, Corresponding Author JON Y. LANDVIK Department of Plant and Environmental Sciences, P.O. Box 5003, NO-1432 As, Norway (e-mail: [email protected]) Norwegian University of Life SciencesSearch for more papers by this author ÓLAFUR INGÓLFSSON, ÓLAFUR INGÓLFSSON Department of Geology and Geography, University of Iceland, IS-101 Reykjavik, IcelandSearch for more papers by this authorJÜRGEN MIENERT, JÜRGEN MIENERT University of Tromsø, Department of Geology, Dramsveien 201, NO-9037 Tromsø, NorwaySearch for more papers by this authorSCOTT J. LEHMAN, SCOTT J. LEHMAN University of Colorado, INSTAAR, Campus Box 450, Boulder, CO 80309, USASearch for more papers by this authorANDERS SOLHEIM, ANDERS SOLHEIM Norwegian Geotechnical Institute, P.O. Box 3930 Ullevaal Stadion, NO-0806 Oslo, NorwaySearch for more papers by this authorANDERS ELVERHØI, ANDERS ELVERHØI University of Oslo, Department of Geosciences, P.O. Box 1047 Blindern, NO-0316 Oslo, NorwaySearch for more papers by this authorDAG OTTESEN, DAG OTTESEN Geological Survey of Norway, Leiv Eiriksons vei 39, NO-7491 Trondheim, NorwaySearch for more papers by this author First published: 28 June 2008 https://doi.org/10.1111/j.1502-3885.2005.tb01001.xCitations: 33AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract New marine geological evidence provides a better understanding of ice-sheet dynamics along the western margin of the last Svalbard/Barents Sea Ice Sheet. A suite of glacial sediments in the Kongsfjordrenna cross-shelf trough can be traced southwards to the shelf west of Prins Karls Forland. A prominent moraine system on the shelf shows minimum Late Weichselian ice extent, indicating that glacial ice also covered the coastal lowlands of northwest Svalbard. Our results suggest that the cross-shelf trough was filled by a fast-flowing ice stream, with sharp boundaries to dynamically less active ice on the adjacent shelves and strandflats. The latter glacial mode favoured the preservation of older geological records adjacent to the main pathway of the Kongsfjorden glacial system. We suggest that the same model may apply to the Late Weichselian glacier drainage along other fjords of northwest Svalbard, as well as the western margin of the Barents Ice Sheet. 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