Abstract
In the uplands of the Brecon Beacons, Black Mountains, Fforest Fawr area of South Wales, small arcuate moraines and/or protalus ramparts are found below steep escarpments and in glacial cirques1–3. The freshness and distinctive morphology of many of these features have led to the suggestion that they are not a product of the late Devensian ice sheet, but may have been formed during the Loch Lomond Stadial of the Late-Glacial period (Fig. 1), the last occasion when glaciers existed in the British Isles. I present here pollen-stratigraphic evidence and radiocarbon dates which form the basis for the first Late-Glacial chronology for this area of South Wales, and which prove that the features described above developed during the Loch Lomond Stadial (approximately equivalent with the Younger Dryas of Scandinavia4–6).
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References
Lewis, C. A. Brycheiniog 14, 97–120 (1970).
Lewis, C. A. in The Glaciations of Wales and Adjoining Regions (ed. Lewis, C. A.) 147–173 (Longmans, London, 1970).
Ellis-Gruffydd, I. D. Cambria 4, 46–55 (Longmans, London, 1977).
Mangerud, J., Anderson, S. T., Berglund, B. E. & Donner, J. J. Boreas 3, 109–126 (1974).
Sissons, J. B. Nature 280, 199–203 (1979).
Lowe, J. J. & Gray, J. M. in Studies in the Lateglacial of North-West Europe (eds Lowe, J. J., Gray, J. M. & Robinson, J. E.) 157–175 (Pergamon, Oxford, 1980).
Walker, M. J. C. & Lowe, J. J. J. Biogeogr. 4, 333–351 (1977).
Sissons, J. B., Lowe, J. J., Thompson, K. S. R. & Walker, M. J. C. Nature Phys. Sci. 244, 75–77 (1973).
Kirk, W. & Godwin, H. Trans. R. Soc. Edinb. 65, 225–249 (1963).
Bishop, W. W. Trans. J. Proc. Dumfries Galloway nat. Hist. Antiq. Soc. 40, 117–132 (1963).
Sissons, J. B. & Walker, M. J. C. Nature 249, 822–824 (1974).
Lowe, J. J. Pollen Spores 20, 367–397 (1978).
Pennington, W. & Bonny, A. P. Nature 226, 871–873 (1970).
Pennington, W. Boreas 4, 157–171 (1975).
Pennington, W. Phil. Trans. R. Soc. B280, 247–271 (1977).
Coope, G. R. & Brophy, J. A. Boreas 1, 97–142 (1972).
Brown, A. P. Phil. Trans. R. Soc. B276, 251–320 (1977).
Sutherland, D. G. in Studies in the Lateglacial of North-West Europe (eds Lowe, J. J., Gray, J. M. & Robinson, J. E.) 139–149 (Pergamon, Oxford, 1980).
Craig, A. J. J. Ecol. 66, 297–324 (1978).
Sissons, J. B. Scotland (Methuen, London, 1976).
Sissons, J. B. Nature 278, 518–521 (1979).
Shotton, F. W. & Williams, R. E. G. Radiocarbon 15, 451–468 (1973).
Shotton, F. W., Williams, R. E. G. & Johnson, A. S. Radiocarbon 17, 255–275 (1975).
Handa, S. & Moore, P. D. New Phytol. 77, 205–225 (1976).
Hibbert, F. A. & Switsur, V. R. New Phytol. 77, 793–807 (1976).
Lowe, J. J. & Walker, M. J. C. Nature 264, 632–633 (1976).
Walker, M. J. C. & Lowe, J. J. J. Biogeogr. 6, 349–362 (1979).
Walker, M. J. C. & Lowe, J. J. in Timescales in Geomorphology (eds Cullingford, R. A., Davidson, D. A. & Lewin, J.) 247–259 (Wiley, New York, 1980).
Oeschger, H., Riesen, T. & Lerman, J. C. Radiocarbon 12, 358 (1970).
Lowe, J. J. & Walker, M. J. C. in Studies in the Lateglacial of North-West Europe (eds Lowe, J. J., Gray, J. M. & Robinson, J. E.) 123–137 (Pergamon, Oxford, 1980).
West, R. G. Pleistocene Geology and Biology (Longmans, London, 1977).
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Walker, M. Late-Glacial history of the Brecon Beacons, South Wales. Nature 287, 133–135 (1980). https://doi.org/10.1038/287133a0
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DOI: https://doi.org/10.1038/287133a0
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