Skip to content

Research at St Andrews

Barrier islands on bedrock: A new landform type demonstrating the role of antecedent topography on barrier form and evolution

Research output: Contribution to journalArticle

DOI

Author(s)

J Cooper, D Jackson, A Dawson, S Dawson, C. Richard Bates, W Ritchie

School/Research organisations

Abstract

Barrier islands commonly occur in coastal plain and deltaic settings, and a variety of behavioral and stratigraphic models exist. In this paper, a 90 km long barrier island system in the Outer Hebrides of Scotland is identified for the first time. Uniquely among barrier islands, the system rests directly on a planar bedrock (gneiss) surface (a strandflat). This bedrock surface has a profound influence on the morphology of the barrier island chain, and exerts the dominant influence on barrier island form and evolution during transgression. Topographical irregularities on the bedrock surface control both plan and profile morphology of the barrier islands. Under sea-level rise, by barrier migration, sediment is redistributed onshore and alongshore in a strongly three-dimensional manner, determined by topographic variability in the bedrock. The barrier islands represent an endpoint in transgressive barrier island geomorphology that is controlled by the bedrock surface: they are at the upper end of the recognized tidal amplitude for barrier islands; the offshore wave regime is very high-energy; they lack a shoreface; and neither ravinement surface nor transgressive sand sheet are developed. Sediment supply is dominated by offshore-derived skeletal carbonate.
Close

Details

Original languageEnglish
Pages (from-to)923-926
Number of pages4
JournalGeology
Volume40
Issue number10
Early online date23 Jul 2012
DOIs
Publication statusPublished - 2012

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Durrington Walls and the Stonehenge Hidden Landscape Project 2010-2016

    Gaffney, V., Neubauer, W., Garwood, P., Gaffney, C., Löcker, K., Bates, R., De Smedt, P., Baldwin, E., Chapman, H., Hinterleitner, A., Wallner, M., Nau, E., Filzwieser, R., Kainz, J., Trausmuth, T., Schneidhofer, P., Zotti, G., Lugmayer, A., Trinks, I. & Corkum, A., 15 Aug 2018, In : Archaeological Prospection. Early View

    Research output: Contribution to journalArticle

  2. 150,000-year palaeoclimate record from northern Ethiopia supports early, multiple dispersals of modern humans from Africa

    Lamb, H., Bates, C. R., Bryant, C., Davies, S., Huws, D., Marshall, M. & Roberts, H., 18 Jan 2018, In : Scientific Reports. 8, 7 p., 1077.

    Research output: Contribution to journalArticle

  3. The Changing Landscape of Prehistoric Orkney

    Wickham Jones, C., Bates, C. R., Bates, M. & Dawson, S., Sep 2017, The Ecology of Early Settlement in Northern Europe - Conditions for Subsistence and Survival (Volume 1) - Per Persson. Vol. 1.

    Research output: Chapter in Book/Report/Conference proceedingChapter

  4. Northern North Sea and Atlantic Northwest Approaches

    Dawson, S., Bates, C. R., Wickham Jones, C. & Dawson, A., Jun 2017, Submerged Landscapes of the European Continental Shelf, Quaternary Paleoenvironments. Flemming, N. (ed.). Wiley-Blackwell, p. 187-210

    Research output: Chapter in Book/Report/Conference proceedingChapter

  5. The Quaternary evolution of the Lower Medway: new evidence from beneath the flood plain

    Bates, M., Bates, C. R. & Briant, R., 2017, Between the Thames and the Medway: Archaeological excavations on teh Hoo Peninsula and its environs. Dawkes, G. (ed.). spoilheap Publications, p. 9-64

    Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

Related by journal

  1. Climatic control on Icelandic volcanic activity during the mid-Holocene

    Swindles, G. T., Watson, E. J., Savov, I. P., Lawson, I. T., Schmidt, A., Hooper, A., Cooper, C. L., Connor, C. B., Gloor, M. & Carrivick, J. L., Jan 2018, In : Geology. 46, 1, p. 47-50 4 p.

    Research output: Contribution to journalArticle

  2. Warm and cold wet-states in the western United States during the Pliocene-Pleistocene

    Ibarra, D., Oster, J., Winnick, M., Caves Rugenstein, J., Byrne, M. P. & Chamberlain, P., 15 Feb 2018, In : Geology. 46, 4, p. 355-358 4 p.

    Research output: Contribution to journalArticle

  3. Internal dynamics condition centennial-scale oscillations in marinebased ice-stream retreat

    Smedley, R. K., Chiverrell, R. C., Ballantyne, C. K., Burke, M. J., Clark, C. D., Duller, G. A. T., Fabel, D., McCarroll, D., Scourse, J. D., Small, D. & Thomas, G. S. P., Jul 2017, In : Geology. 45, 9, p. 787-790 4 p.

    Research output: Contribution to journalArticle

  4. Duration and nature of the end-Cryogenian (Marinoan) glaciation

    Prave, A. R., Condon, D. J., Hoffmann, K. H., Tapster, S. & Fallick, A. E., 1 Aug 2016, In : Geology. 44, 8, p. 631-634 4 p.

    Research output: Contribution to journalArticle

  5. Nonlithostatic pressure during subduction and collision and the formation of (ultra)high-pressure rocks

    Reuber, G., Kaus, B. J. P., Schmalholz, S. M. & White, R. W., May 2016, In : Geology. 44, 5, p. 343-346 4 p.

    Research output: Contribution to journalArticle

Related by journal

  1. Geology (Journal)

    Chris Hawkesworth (Member of editorial board)
    20042008

    Activity: Publication peer-review and editorial work typesEditor of research journal

  2. Geology (Journal)

    Michael Ian Bird (Member of editorial board)
    2000 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

ID: 38803591