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Revising the limit of the NW Laurentide Ice Sheet: extensive glaciation in NE Beringia

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dc.contributor.authorFurze, Mark F.A.
dc.contributor.authorEngland, John H.
dc.contributor.authorDoupe, Jonathan P.
dc.date.accessioned2014-10-02
dc.date.accessioned2022-05-27T01:13:14Z
dc.date.available2022-05-27T01:13:14Z
dc.date.issued2010
dc.descriptionPresented on May 6, 2010 at the European Geosciences Union General Assembly in Vienna, Austria.
dc.description.abstractFor the past half-century, reconstructions of North American ice cover during the Last Glacial Maximum have shown ice-free land distal to the Laurentide Ice Sheet, primarily on Melville and Banks islands in the western Canadian Arctic Archipelago. Both islands reputedly preserve at the surface multiple Laurentide till sheets, together with associated marine and lacustrine deposits, recording as many as three pre-Late Wisconsinan glaciations. The northwest corner of Banks Island was purportedly never glaciated and is trimmed by the oldest and most extensive glaciation (Banks Glaciation) considered to be of Matuyama age (>780 ka BP). The view that the western Canadian Arctic Archipelago remained largely ice-free during the Late Wisconsinan, serving as the NE extremity of Beringia, is reinforced by a recent report of two woolly mammoth fragments collected on Banks and Melville islands, both dated to ∼22 ka BP. Well developed periglacial features present, in particular on Banks Island, have also been considered to record a long interval of ice-free conditions throughout the LGM.
dc.format.extent39.96 kb
dc.format.mimetypePDF
dc.identifier.urihttps://hdl.handle.net/20.500.14078/157
dc.languageEnglish
dc.language.isoen
dc.rightsAll Rights Reserved
dc.subjectLaurentide Ice Sheet
dc.subjectice sheets
dc.subjectCanadian Arctic Archipelago
dc.subjectglaciation
dc.titleRevising the limit of the NW Laurentide Ice Sheet: extensive glaciation in NE Beringiaen
dc.typePresentation
dspace.entity.type

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