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Journal of the Geological Society; 2007; v. 164; issue.2; p. 313-316;
DOI: 10.1144/0016-76492006-120
© 2007 Geological Society of London

Short Communication

A revised model for the last deglaciation of eastern Scotland

A.M. McCabe1, P.U. Clark2, D.E. Smith3 & P. Dunlop1

1 1School of Environmental Science, University of Ulster, Coleraine BT52 1SA, UK (e-mail: m.mccabe@ulster.ac.uk)
2 2Department of Geosciences, Oregon State University, Corvallis, OR 97331, USA
3 3Oxford University Centre for the Environment, South Parks Road, Oxford OX1 3QY, UK

Accelerator mass spectrometry 14C ages on monospecific marine microfauna from raised mud record initial deglaciation of the eastern coast of Scotland before 21.0 cal ka bp. Two subsequent ice-margin readvances occurred prior to the Loch Lomond Advance and are identified from ice-contact deposits overlying marine mud. The Lunan Bay Readvance dates to <20.2 cal ka bp, and possibly <18.2 cal ka bp. The younger Perth Readvance occurred between c. 17.5 cal ka bp and 14.5 10Be ka. Within dating uncertainties, these readvances are similar in age to ice-margin fluctuations documented from the Irish Sea Basin and northwestern Ireland and record three near-synchronous fluctuations of much of the British–Irish Ice Sheet margin during the last deglaciation, suggesting a common response to regional climate forcing.




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J.D. Peacock, M. Armstrong, M.A.E. Browne, N.R. Golledge, M.S. Stoker, A.M. McCabe, P. Dunlop, P.U. Clark, and D.E. Smith
Discussion on a revised model for the last deglaciation of eastern Scotland Journal, Vol. 164, 2007, 313 316
Journal of the Geological Society, 2007; 164: 1261 - 1263.
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