TY - JOUR
T1 - Cosmogenic 10BE age constraints for the Wester Ross Readvance moraine
T2 - Insights into British Ice-Sheet behaviour
AU - Everest, Jeremy D.
AU - Bradwell, Tom
AU - Fogwill, Chris J.
AU - Kubik, Peter W.
PY - 2006/3
Y1 - 2006/3
N2 - This study presents the first absolute-age 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).
AB - This study presents the first absolute-age 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).
UR - http://www.scopus.com/inward/record.url?scp=33644840017&partnerID=8YFLogxK
U2 - 10.1111/j.0435-3676.2006.00279.x
DO - 10.1111/j.0435-3676.2006.00279.x
M3 - Article
AN - SCOPUS:33644840017
SN - 0435-3676
VL - 88
SP - 9
EP - 17
JO - Geografiska Annaler, Series A: Physical Geography
JF - Geografiska Annaler, Series A: Physical Geography
IS - 1
ER -