Los abanicos aluviales del borde norte de la sierra de Mijas (cuenca de Málaga, Cordillera Bética Occidental)

  1. J.M. Insua-Arévalo 1
  2. J.J. Martínez-Díaz 1
  3. J. García-Mayordomo 2
  4. F. Martín-García 3
  5. R. Capote 1
  1. 1 Universidad Complutense de Madrid
    info

    Universidad Complutense de Madrid

    Madrid, España

    ROR 02p0gd045

  2. 2 Laboratorio de Geotecnia. CEDEX
  3. 3 Universidad Rey Juan Carlos
    info

    Universidad Rey Juan Carlos

    Madrid, España

    ROR https://ror.org/01v5cv687

Llibre:
Contribuciones al estudio del periodo cuaternario
  1. Lario Gómez, Javier (coord.)
  2. Silva, Pablo G. (coord.)

Editorial: Escuela Técnica Superior de Ingenieros Industriales de Madrid ; Universidad Politécnica de Madrid

ISBN: 978-84-7484-201-2

Any de publicació: 2007

Pàgines: 151-152

Tipus: Capítol de llibre

Resum

Three different generations of alluvial-fans have been identified at the northern border of Mijas range. The oldest generation is formed by debris-flow deposits showing an striking calcrete development of more than 30 m thick. The second generation is also formed by debris-flow deposits with important calcrete development (10 m max.). Finally, the third generation is formed by sheet-flow deposits with no calcrete development. Accordingly, the relative age of each depositional phase has been estimated in Pliocene, Lower-Middle Pleistocene and Upper Pleistocene-Holocene. The depositional phases show important dissimilarities from the western- to the eastern-sector of the mountain border. The oldest generation is only preserved at the western-sector, and the intermediate age generation is placed here at a higher elevation than in the eastern-sector. Furthermore, in the western-sector the youngest generation displays a distal-accretion off-lap arrangement in contrast to the proximal-accretion on-lap arrangement displayed in the eastern-sector. These significant dissimilarities are attributed to tectonic causes