Los abanicos aluviales del borde norte de la sierra de Mijas (cuenca de Málaga, Cordillera Bética Occidental)
- J.M. Insua-Arévalo 1
- J.J. Martínez-Díaz 1
- J. García-Mayordomo 2
- F. Martín-García 3
- R. Capote 1
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1
Universidad Complutense de Madrid
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- 2 Laboratorio de Geotecnia. CEDEX
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3
Universidad Rey Juan Carlos
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- Lario Gómez, Javier (coord.)
- Silva, Pablo G. (coord.)
Editorial: Escuela Técnica Superior de Ingenieros Industriales de Madrid ; Universidad Politécnica de Madrid
ISBN: 978-84-7484-201-2
Año de publicación: 2007
Páginas: 151-152
Tipo: Capítulo de Libro
Resumen
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