Evolution and hazards of a long-quiescent compound shield-like volcano: Cofre de Perote, Eastern Trans-Mexican Volcanic Belt
Por:
Carrasco-Núñez G., Siebert L., Díaz-Castellón R., Vázquez-Selem L., Capra L.
Publicada:
30 nov 2010
Resumen:
Cofre de Perote (Nauhcampatepetl) volcano lies at the northern end of the Citlaltepetl-Cofre de Perote volcanic range (CCVR) that is the easternmost of several volcanic chains orthogonal to the E-W trend of the Trans-Mexican Volcanic Belt (TMVB). The CCVR is an important physiographic feature separating the Gulf coastal plains from the Altiplano, with pronounced differential relief of more than 1000 m and sloping substrate promoting major edifice failures toward the Gulf of Mexico coastal plain of most of the volcanoes that form that chain. Its structure, composition, and volcanic history diverge significantly from that of the large dominantly andesitic stratovolcanoes that have been the major focus of research efforts in the TMVB. Cofre de Perote volcano is dominated by the successive emplacement of basaltic andesite, andesitic-trachyandesitic to dacitic lava flows and associated breccias erupted through different vents that built a massive low-angle compound shield-like volcano, in c
Filiaciones:
Carrasco-Núñez G.:
Univ Nacl Autonoma Mexico, Ctr Geociencias, Queretaro 76230, Mexico
Siebert L.:
Smithsonian Institution, Global Volcanism Program, National Museum of Natural History, Washington, D.C. 20013-7012, United States
Díaz-Castellón R.:
Univ Nacl Autonoma Mexico, Ctr Geociencias, Queretaro 76230, Mexico
Vázquez-Selem L.:
Univ Nacl Autonoma Mexico, Inst Geog, Mexico City 04510, DF, Mexico
Capra L.:
Univ Nacl Autonoma Mexico, Ctr Geociencias, Queretaro 76230, Mexico
|