Research Article

Cosmogenic nuclide exposure ages from the ‘Parallel Roads’ of Glen Roy, Scotland†

  1. Derek Fabel1,*,
  2. David Small1,
  3. Maria Miguens-Rodriguez2,
  4. Stewart P. H. T. Freeman2

Article first published online: 25 AUG 2009

DOI: 10.1002/jqs.1318

Issue

Journal of Quaternary Science

Journal of Quaternary Science

Special Issue: The Quaternary of the British Isles and adjoining seas

Volume 25, Issue 4, pages 597–603, May 2010

Additional Information

How to Cite

Fabel, D., Small, D., Miguens-Rodriguez, M. and Freeman, S. P. H. T. (2010), Cosmogenic nuclide exposure ages from the ‘Parallel Roads’ of Glen Roy, Scotland. Journal of Quaternary Science, 25: 597–603. doi: 10.1002/jqs.1318

Author Information

  1. 1

    Department of Geographical and Earth Sciences, University of Glasgow, Glasgow, UK

  2. 2

    Scottish Universities Environmental Research Centre, East Kilbride, UK

*Department of Geographical and Earth Sciences, University of Glasgow, Glasgow G12 8QQ, UK.

  1. †

    Fabel, D., Small, D., Miguens-Rodriguez, M. and Freeman, S. P. H. T. 2010. Cosmogenic nuclide exposure ages from the ‘Parallel Roads’ of Glen Roy, Scotland. J. Quaternary Sci., Vol. 25 pp. 597–603. ISSN 0267-8179.

Publication History

  1. Issue published online: 23 APR 2010
  2. Article first published online: 25 AUG 2009
  3. Manuscript Accepted: 10 APR 2009
  4. Manuscript Revised: 17 FEB 2009
  5. Manuscript Received: 10 DEC 2008

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Keywords:

  • cosmogenic nuclide exposure ages;
  • shorelines;
  • Parallel Roads;
  • Glen Roy; Scotland

Abstract

The ‘Parallel Roads’ of Glen Roy, Scotland, are the shorelines of former ice-dammed lakes created by the last glaciers to occupy the area. We use surface exposure dating with cosmic ray-produced 10Be in quartz to provide the first numerical age control on the timing of formation of one of one of these shorelines and depositional features in Glen Roy. Four bedrock samples from the surface of the 325 m ‘Parallel Road’ yielded a mean formation age of ca. 11.5–11.9 ka. This age range confirms the long-held view that the ‘Parallel Roads’ are Loch Lomond Stadial (ca. 12.9–11.5 ka) features. The age range reflects variation in currently available cosmogenic nuclide scaling schemes and the related 10Be production rates. Two samples from the surface of the Turret fan indicate that the 260 m lake drained before ca. 10.7–11.0 ka, while two samples from the Brunachan fan suggest that subaerial sedimentation occurred after ca. 9.7–9.9 ka. Copyright © 2009 John Wiley & Sons, Ltd.

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