Morfometría de la red de drenaje, tectónica activa y sismicidad instrumental en el borde occidental de Sierra Nevada (Cordilleras Béticas)

• J.M. Azañón ^[1] ; A. Azor ^[1] ; V. Pérez-Peña ^[1] ; G. Booth-Rea ^[3] ; J. Rodríguez-Fernández ^[1] ; J. Delgado ^[2] ; J.M. Carrillo ^[1] ; F. Torcal ^[4]
  1. [1] Universidad de Granada

     Universidad de Granada

     Granada, España

     
  2. [2] Universidad de Jaén

     Universidad de Jaén

     Jaén, España

     
  3. [3] GEOMAR
  4. [4] Univiversidad Pablo de Olavide

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• Localización: Geotemas (Madrid), ISSN 1576-5172, Nº. 6, 3, 2004 (Ejemplar dedicado a: IV Congreso Geológico de España (Zaragoza, 12-15 julio, 2004)), págs. 135-138
• Idioma: español
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• Resumen

  • The use of a number o f geomorphic indexes in Sierra Nevada suggests that recentmost and active tectonic activity is concentrated along its SW border. Moreover, a map of the SL-index shows maxima aligned along several bands of NW-SE orientation. Such alignments coincide with high seismicity lineaments, being interpreted as NW-SE oriented active fault zones. NW-SE oriented faults are common in the western border of Sierra Nevada, appearing as very steep highly segmented normal faults. These faults cut across all the tectonic -including M iocene extensional detachments- and lithological boundaries, being responsible for the present-day NE-SW oriented extensional deformation in this region.