Shear deformation and emplacement of the gneissic Canigou thrust nappe (Eastern Pyrenees)

  • J. Soliva Laboratoire de Geologie Structurale, U.A. 266, Universite des Sciences et Techniques du Languedoc, Place Eugene Bataillon - 34060 Montpellier-CEDEX, France
  • J.F. Salel Laboratoire de Geologie Structurale, U.A. 266, Universite des Sciences et Techniques du Languedoc, Place Eugene Bataillon - 34060 Montpellier-CEDEX, France
  • M. Brunel Laboratoire de Geologie Structurale, U.A. 266, Universite des Sciences et Techniques du Languedoc, Place Eugene Bataillon - 34060 Montpellier-CEDEX, France
Keywords: Canigou gneisses, Pyrenees, shear deformation, shear criteria, stretching lineations, Variscan thrust tectonics

Abstract

The Canigou gneiss nappe is one of the most striking features developed during Variscan convergent tectonics in the Pyrenean chain. The Canigou structure is classically interpreted as a recumbent fold nappe. New data concerned with kinematic analysis of the deformation argue for the importance of thrusting tectonic imprints. Shear criteria analysis indicates that the main transport direction was towards the SW. The mylonitic shear zone described from the bottom of the Canigou gneiss is assumed to represent a main ductile thrust zone, with a magnitude of transport in excess of 30 km.

Published
1989-01-01
How to Cite
J. Soliva, J.F. Salel, & M. Brunel. (1989). Shear deformation and emplacement of the gneissic Canigou thrust nappe (Eastern Pyrenees). Netherlands Journal of Geosciences, 357-366. Retrieved from https://njgjournal.nl/index.php/njg/article/view/12916
Issue
Volume 68 - 1989
Section
Regular paper

Authors contributing to Netherlands Journal of Geosciences retain copyright of their work, with first publication rights granted to the Netherlands
Journal of Geosciences Foundation. Read the journal's full Copyright- and Licensing Policy.