Hall, Adrian M., Binnie, Steven A., Sugden, David, Dunai, Tibor J. and Wood, Christina (2016). Late readvance and rapid final deglaciation of the last ice sheet in the Grampian Mountains, Scotland. J. Quat. Sci., 31 (8). S. 869 - 879. HOBOKEN: WILEY. ISSN 1099-1417

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Abstract

Towards the end of the last glaciation, ice sourced from the western Grampian Mountains of Scotland flowed down Strath Spey to encroach on the northern flanks of the Cairngorm Mountains. The maximum of this late advance and its subsequent retreat is recorded by moraines, ice-marginal meltwater channels, and kame terraces that can be traced for 60 km along Strath Spey. New cosmogenic Be-10 exposure ages from moraines indicate deglaciation at 15.1 +/- 1.1 ka. This timing matches closely the recalibrated mean ages of 14.7 +/- 0.7 and 15.2 +/- 0.7 ka for the Wester Ross Readvance in the North-West Highlands. A synchronous readvance of the British-Irish Ice Sheet (BIIS) towards the end of Greenland Stadial 2a (GS-2a) (16.9-14.7 ka) is indicated. Thereafter active ice retreat from the flanks of Strath Spey was rapid, occurring within the similar to 1 ka uncertainty of the cosmogenic exposure ages. We suggest the advance followed the collapse of the marine parts of the BIIS at similar to 16 ka due to conditions of increased precipitation occurring at a time of low temperatures. The rapidity of deglaciation may reflect enhanced Fohn effects caused by the ice dome in the western Grampians. Copyright (C) 2016 John Wiley & Sons, Ltd.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Hall, Adrian M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Binnie, Steven A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sugden, DavidUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dunai, Tibor J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wood, ChristinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-256352
DOI: 10.1002/jqs.2911
Journal or Publication Title: J. Quat. Sci.
Volume: 31
Number: 8
Page Range: S. 869 - 879
Date: 2016
Publisher: WILEY
Place of Publication: HOBOKEN
ISSN: 1099-1417
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
CAIRNGORM MOUNTAINS; EXPOSURE AGES; COSMOGENIC BE-10; LANDFORMS; RATES; TORSMultiple languages
Geography, Physical; Geosciences, MultidisciplinaryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/25635

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