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Slope Movements and Active Tectonics in the Izbor River Basin (Granada, Spain)

AuthorsEl Hamdouni, R.; Irigaray, C.; Fernández, T.; Sanz de Galdeano, Carlos ; Chacón Montero, J.
Issue DateJun-2000
PublisherThomas Telford
CitationLandslides in Research, Theory and Practice 1: 501-506 (2000)
AbstractIn this paper an inventory of landslides and its relationships to the Quaternary active tectonics are analysed taking in account geomorphic indexes and field observations. The terrain affected by landslides represents a 7.4% of the total surface of the study area and most of the movements are incipient slides on Nevado-Filábride and Alpujárride metapelites, or advanced earth flows on Neogene silts and sand deposits. Also, there are debris flows and rock falls developed on Alpujarride marbles and calcareous schists. In general, the observed unstable zones are related with very steep slopes in the margins of rapidly incised river channels, resulting from environmental processes and the recent active tectonics. A comparison of the landslide inventory and the distribution of geomorphic indexes, related to the river channels network, is made. From this, different areas of increasing active tectonics are distinguished: the Southern margin of Sierra Nevada and Northern slopes of Sierra Los Guajares, where a relatively high degree of tectonic activity is established and the landslides are abundant, in one side, and the Northern slopes of Sierra de Albunuelas and the SW of the Padul basin, where the tectonic activity is relatively lower and the slope instability is not frequent.
Description6 páginas.-- Proceedings of the 8th International Symposium on Landslides held in Cardiff on 26-30 June 2000.-- Edited by E. Bromhead, N. Dixon and M. L. Ibsen.
Publisher version (URL)http://dx.doi.org/10.1680/lirtapv1.34617
Appears in Collections:(IACT) Libros y partes de libros
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