IDEAS home Printed from https://ideas.repec.org/a/spr/nathaz/v59y2011i2p725-747.html
   My bibliography  Save this article

The Rabat and Larache boulder fields; new examples of high-energy deposits related to storms and tsunami waves in north-western Morocco

Author

Listed:
  • F. Medina
  • N. Mhammdi
  • A. Chiguer
  • M. Akil
  • E. Jaaidi

Abstract

The coastal areas of south-west Iberia and north-west Morocco host numerous megaclast accumulations thought to have been emplaced by high-energy waves, namely by the major tsunami related to the 1 November 1755 AD earthquake. New observations were carried out along several transects from Rabat and Larache areas, using statistical methods applied to boulder size. The main results are (a) the boulders belong to two or three sources located within the Pleistocene–Holocene formations of both areas, but only from a single source at Harhoura; (b) the boulders in Larache are generally small, thin and show a normal polarity, whereas those of Rabat are much larger and are often overturned; (c) the directions of inclination of imbricate boulders are variable at Rabat (N, NW and W), whereas they are constant in Larache (WNW); (d) the blocks were displaced for distances up to 150 m in Rabat, while the displacement of the Larache boulders was stopped by the MHW cliff; (e) the hydrodynamic equations suggest that tsunami waves, with maximum amplitudes of 5–11 m in Rabat and 4.5 m in Larache, were responsible for the displacement of the largest boulders, whereas storms may have displaced smaller ones. Copyright Springer Science+Business Media B.V. 2011

Suggested Citation

  • F. Medina & N. Mhammdi & A. Chiguer & M. Akil & E. Jaaidi, 2011. "The Rabat and Larache boulder fields; new examples of high-energy deposits related to storms and tsunami waves in north-western Morocco," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 59(2), pages 725-747, November.
    • Handle: RePEc:spr:nathaz:v:59:y:2011:i:2:p:725-747
    DOI: 10.1007/s11069-011-9792-x
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1007/s11069-011-9792-x
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1007/s11069-011-9792-x?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. E. Bryant & J. Nott, 2001. "Geological Indicators of Large Tsunami in Australia," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 24(3), pages 231-249, November.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Deanne Bird & Dale Dominey-Howes, 2008. "Testing the use of a ‘questionnaire survey instrument’ to investigate public perceptions of tsunami hazard and risk in Sydney, Australia," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 45(1), pages 99-122, April.
    2. G. Shanmugam, 2012. "Process-sedimentological challenges in distinguishing paleo-tsunami deposits," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 63(1), pages 5-30, August.
    3. Ángel Puga-Bernabéu & Jody Webster & Robin Beaman, 2013. "Potential collapse of the upper slope and tsunami generation on the Great Barrier Reef margin, north-eastern Australia," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 66(2), pages 557-575, March.
    4. Nazik Öğretmen & Domenico Cosentino & Elsa Gliozzi & Paola Cipollari & Annalisa Iadanza & Cengiz Yildirim, 2015. "Tsunami hazard in the Eastern Mediterranean: geological evidence from the Anatolian coastal area (Silifke, southern Turkey)," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 79(3), pages 1569-1589, December.
    5. J. F. Dewey & J. Goff & P. D. Ryan, 2021. "The origins of marine and non-marine boulder deposits: a brief review," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 109(2), pages 1981-2002, November.
    6. J. Nott, 2003. "The Importance of Prehistoric Data and Variability of Hazard Regimes in Natural Hazard Risk Assessment – Examples from Australia," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 30(1), pages 43-58, September.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:spr:nathaz:v:59:y:2011:i:2:p:725-747. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.springer.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.