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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4260

Authors: Norini, G.*
Groppelli, G.*
Capra, L.*
De Beni, E.*
Title: Morphological analysis of Nevado de Toluca volcano (Mexico): new insights into the structure and evolution of an andesitic to dacitic stratovolcano
Title of journal: Geomorphology
Series/Report no.: /62 (2004)
Publisher: Elsevier
Issue Date: 23-Apr-2004
DOI: 10.1016/j.geomorph.2004.02.010
Keywords: Nevado de Toluca
Mexico
Volcanic geomorphology
DEM analysis
Abstract: We present a morphological analysis of Nevado de Toluca volcano located 80 km WSW of Mexico City based on digital elevation model study, where slope and aspect maps have been generated and analysed. Aerial photograph and satellite image observations improve the morphological analysis. The synoptic view which is offered by this analysis allowed for recognition and localization of the main volcanic and tectonic features of the area. On the basis of digital elevation model value distribution and surface textures, five morphological domains were defined. The most interesting domain, south of the crater, reflects the occurrence of an ancient complex volcano distinct from the adjacent areas. Interaction between the volcanic and volcano– tectonic evolution and the basement produced the other domains. Single volcanic edifices, like lava domes and scoria cones, and eruptive fractures were recognized. Finally, flank collapse scarps opened to the east and to the north were identified and four relevant morphostructural lineaments and their possible role in the Nevado de Toluca geological and structural evolution are discussed.
Appears in Collections:04.04.99. General or miscellaneous
Papers Published / Papers in press

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