Detailed geomorphology of debris avalanches of El Estribo volcanic complex (Central Mexico)
Por:
Gomez-Castillo, Gemma, Mendoza, Manuel E., Luis Macias, Jose, Vargas-Ramirez, Nicolas
Publicada:
9 dic 2020
Resumen:
The El Estribo Volcanic Complex, located to the south of Patzcuaro Lake
(Central Mexico), forms an elevation based on a shield volcano crowned
by a cinder cone. Two debris avalanches, dated at 28,000 and 14,000 ybp,
cover an area of 4 km(2)with a typical hummocky topography. The zone is
a state natural protected area with no previous studies of hazard and
risk from mass movement processes. Herein, we present a detailed
geomorphological map of the debris-avalanche area, scale 1:20,000. The
approach applied used two hierarchical levels, geomorphological
landscapes and landforms. The fault scarp was mapped using
high-resolution digital elevation models obtained whit unmanned aerial
vehicles (UAV) survey. We describe and characterized four main
geomorphological units, 20 subunits, 66 hummocks, and the general
drainage network. This map is a valuable tool to identify and quantify
risks from mass movement processes.
Filiaciones:
Gomez-Castillo, Gemma:
Univ Nacl Autonoma Mexico UNAM Morelia, Ctr Invest Geog Ambiental, Morelia, Michoacan, Mexico
Mendoza, Manuel E.:
Univ Nacl Autonoma Mexico UNAM Morelia, Ctr Invest Geog Ambiental, Morelia, Michoacan, Mexico
Luis Macias, Jose:
Univ Nacl Autonoma Mexico, Inst Geofis, Unidad Michoacan, Morelia, Michoacan, Mexico
Vargas-Ramirez, Nicolas:
Univ Nacl Autonoma Mexico UNAM Morelia, Ctr Invest Geog Ambiental, Morelia, Michoacan, Mexico
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