Chapitre D'ouvrage Année : 2019

Neotectonic Deformation Model of the Northern Algeria from Paleomagnetic Data: Preliminary Results from Northwestern Areas

Mohamed El-Messaoud Derder
  • Fonction : Auteur
Saïd Maouche
  • Fonction : Auteur
Philippe Robion
  • Fonction : Auteur
Bernard Henry
Mohamed Amenna
  • Fonction : Auteur
Boualem Bayou
  • Fonction : Auteur
Yves Missenard
Rafik Bestandji
  • Fonction : Auteur
Salamet Mahboubi
  • Fonction : Auteur

Résumé

Previous paleomagnetic studies, performed in central North-Algeria (Chelif and Mitidja basins) on Neogene formations, pointed out some tectonic clockwise rotations of large blocks, sometimes of large amplitudes. Narrow zones represent also important shear zones with strong rotations. The preliminary results of a new paleomagnetic study undertaken in Northwestern Algeria (Aïn Temouchent–Ghazaouet area) suggest the presence of clockwise block-rotations of lower magnitude. That confirms that the northern Algeria is organized as tectonic blocks, accommodating by transpression and blocks rotations, the Africa-Eurasia convergence. A gradient of “deformation” appears from the NNE to the SSW, i.e. from the Mitidja basin affected by strong rotations to Aïn Temouchent–Ghazaouet area where the rotations are limited.

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Dates et versions

hal-04505634 , version 1 (15-03-2024)

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Mohamed El-Messaoud Derder, Saïd Maouche, Philippe Robion, Bernard Henry, Mohamed Amenna, et al.. Neotectonic Deformation Model of the Northern Algeria from Paleomagnetic Data: Preliminary Results from Northwestern Areas. On Significant Applications of Geophysical Methods, Springer International Publishing, pp.39-41, 2019, Advances in Science, Technology & Innovation, ⟨10.1007/978-3-030-01656-2_8⟩. ⟨hal-04505634⟩
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