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Marine Geophysical Researches

, Volume 27, Issue 1, pp 49–59 | Cite as

Morphostructure of the Egyptian Continental Margin: Insights from Swath Bathymetry Surveys

  • Jean Mascle
  • Olivier Sardou
  • Lies Loncke
  • Sébastien Migeon
  • Laurent Caméra
  • Virginie Gaullier
Article

Abstract

In the Eastern Mediterranean, offshore Egypt, the Nile continental margin is characterized by a large deep water turbiditic system known as the Nile Deep Sea Fan. This post-Miocene terrigenous construction covers an approximately 10 km-thick sedimentary pile, including 1–3 km of Messinian salt layers. Systematically collected swath bathymetric data proved to be the most powerful tool to discover, describe and study many sea floor features of this sedimentary construction which reflects competition between active tectonic, sedimentary, and geochemical processes. Gravity tectonics, triggered by underlying mobile salt layers, construction of channel-levee systems, the passage of turbidite flows, sedimentary slope failures at various scales, massive mud expulsions and fluid seepages are all interfering to shape the Nile Deep Sea Fan seabed.

Keywords

swath bathymetry morphology sea floor processes Nile continental margin 

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Copyright information

© Springer 2006

Authors and Affiliations

  • Jean Mascle
    • 1
  • Olivier Sardou
    • 1
  • Lies Loncke
    • 2
  • Sébastien Migeon
    • 1
  • Laurent Caméra
    • 1
  • Virginie Gaullier
    • 3
  1. 1.site de VillefrancheGéosciences-AzurVillefranche/merFrance
  2. 2.Département de GéologieUniversité de Picardie Jules VerneAmiensFrance
  3. 3.LegemUniversité de PerpignanPerpignanFrance

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