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Revista de la Asociación Geológica Argentina

versión impresa ISSN 0004-4822

Resumen

WICK, Emmanuel et al. Recent debris flows in the Frontal Cordillera of Mendoza: an example of natural risk on the Road 7. Rev. Asoc. Geol. Argent. [online]. 2010, vol.66, n.4, pp. 460-465. ISSN 0004-4822.

In this paper is presented a study dealing with the debris flows that reached the national road 7 in January 2005, in the km 1,118.5, Mendoza province. The area is located in the Frontal Cordillera near the limit of the Precordillera. A detailed geomorphologic map has been realized for this study using a Quickbird satellite imagery of the year 2006. Various calculations of volumes, velocities and peak discharges have been performed with the field data and using a geographic information system (GIS). The geomorphologic survey has permitted to propose three propagation scenarios in case of a new event. These allowed creating a map of debris flows susceptibility for the stretch of the road that has been studied. Finally, it has been proposed protection and mitigation measures, based on the results of the study, to protect the road from a new event.

Palabras llave : Debris flows; Road 7; Mendoza; Map of susceptibility; Mitigation measures.

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