Propagación de las deformaciones plio-cuaternarias del frente del Rif hacia el antepaís

Jesús Galindo Zaldívar; Ahmed Chalouan; Patricia Ruano Roca; K. Bargach; Ahmed Chabli; C. Martín Lechado; M. Akil; Carlos Sanz de Galdeano Equiza; Mfedal Ahmamou; Antonio Jabaloy Sánchez; L. Gourari; M. Benmakhlouf

Ayuda

Propagación de las deformaciones plio-cuaternarias del frente del Rif hacia el antepaís

J. Galindo-Zaldívar ^[1] ; A. Chalouan ^[2] ; P. Ruano ^[1] ; K. Bargach ^[2] ; A. Chabli ^[2] ; C. Martín Lechado ^[5] ; M. Akil ^[2] ; C. Sanz de Galdeano ^[3] ; M. Ahmamou ^[2] ; A. Jabaloy ^[1] ; L. Gourari ^[4] ; M. Benmakhlouf
1. [1] Universidad de Granada
  
  Universidad de Granada
  
  Granada, España
2. [2] Mohammed V University
  
  Mohammed V University
  
  Marruecos
3. [3] Instituto Andaluz de Ciencias de la Tierra
  
  Instituto Andaluz de Ciencias de la Tierra
  
  Granada, España
4. [4] Sidi Mohamed Ben Abdellah University
  
  Sidi Mohamed Ben Abdellah University
  
  Fes-Medina, Marruecos
5. [5] Instituto Geológico de España
Mostrar afiliaciones +
Localización: Geotemas (Madrid), ISSN 1576-5172, Nº. 6, 3, 2004 (Ejemplar dedicado a: IV Congreso Geológico de España (Zaragoza, 12-15 julio, 2004)), págs. 143-146
Idioma: español
Enlaces
- Texto Completo Ejemplar
Resumen
- The frontal part of the Rif is constituted by the Prerif Ridges, grouped into two tectonic arcs, separated by the Volubilis Depression. The southern branch o f these tectonic arcs is formed by south vergent folds, sometimes related to reverse faults. They determine the northern boundary of the Saïss Basin and represent, together with the Charb Basin, the foreland basins of the Rif. South of the Saïss Basin is located the Meseta and Middle Atlas that constitute the foreland. The Plio-Quaternary deformation related to the convergence o f the Eurasian and African plates are propagated towards the mountain front, where southwards and south-eastwards vergent thrusts, affecting up to Plio-Quaternary rocks, have been recognized. In addition, folding affects also Plio-Quaternary conglomerates that are tilted locally up to subvertical or reverse dips. The foreland basins underwent both N-S extension, as a consequence of the flexure o f the crust, and also local compression, probably as consequence of the southwards propagation of reverse faults of the mountain front. The foreland is also affected by recent deformation although with a lower intensity. Joints and some normal and strike-slip faults, points to a variable stress field including a roughly N-S compression.