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Structure of the Gulf of Lions (Northwestern Mediterranean Sea): A Review

  • C. Gorini
  • A. Mauffret
  • P. Guennoc
  • A. Le Marrec
Part of the Special Publication of the European Association of Petroleum Geoscientists book series (3148, volume 4)

Abstract

After a brief review of previous work, mainly related to the results of the deep penetration (ECORS) seismic lines, we present a picture of the Gulf of Lions tectonic framework based on a dense grid of seismic in­ dustrial lines. This region is divided into two zones: a northeastern one where narrow grabens are oriented NE-SW and a southwestern area where large and deep depressions are limited by faults and horsts which trend N-S. The onshore geology indicates that the second zone has been formed during the Late Eocene epoch in relati­ on to the western European graben system, whereas the NE-SW horsts and grabens are Oligocene in age and are connected to the opening of the northwestern Mediterranean basin. Beneath the Tertiary several deep reflections may represent a southward extension of Mesozoic rocks of the southeast basin and some Eocene thrusts. The thrusting surfaces have been reactivated during the sub­ sequent Oligocene rifting. The structure of the Gulf of Li­ ons is replaced in a general geodynamic framework.

Keywords

Seismic Profile Late Eocene Seismic Line Acoustic Basement Deep reflectIOn 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • C. Gorini
  • A. Mauffret
  • P. Guennoc
  • A. Le Marrec

There are no affiliations available

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