Cosmogenic 10BE Age Constraints for The Wester Ross Readvance Moraine: Insights Into British Ice-Sheet Behaviour

Everest, Jeremy; Bradwell, Tom; Fogwill, CJ; Kubik, P. 2006 Cosmogenic 10BE Age Constraints for The Wester Ross Readvance Moraine: Insights Into British Ice-Sheet Behaviour. Geografiska Annaler Series A Physical Geography, 88 (1). 9-17. 10.1111/j.0435-3676.2006.00279.x

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Abstract/Summary

This study presents the first absoluteage constraints from a palaeo-ice-sheet margin in western Scotland. Cosmogenic 10Be from four Lewisian gneiss boulders on the Gairloch Moraine in NW Scotland have yielded reliable exposure ages. Three of these dates, taken from a single moraine ridge, cluster around c. 15.5–18 ka BP, with a weighted mean of 16.3 ± 1.6 ka BP. These findings indicate that the last British Ice Sheet had retreated to the present-day coastline in NW Scotland by this time. It is suggested that the Wester Ross Readvance represents an ice-sheet oscillation during, or in the immediate aftermath of, Heinrich Event 1 (c. 17–18 ka BP).

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1111/j.0435-3676.2006.00279.x
Programmes:	BGS Programmes > Geology and Landscape Northern
Additional Keywords:	Scotland -- West, Ice sheets
NORA Subject Terms:	Glaciology Earth Sciences
Date made live:	04 Jul 2007 10:53 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/602

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