Scaling laws of the size-distribution of monogenetic volcanoes within the Michoacan-Guanajuato Volcanic Field (Mexico)
Por:
Pérez-López R., Legrand D., Garduno-Monroy, VH, Rodríguez-Pascua M.A., Giner-Robles J.L.
Publicada:
1 abr 2011
Resumen:
The Michoacan-Guanajuato Volcanic Field displays about 1040 monogenetic volcanoes mainly composed of basaltic cinder cones. This monogenetic volcanic field is the consequence of a dextral transtensive tectonic regime within the Transmexican Volcanic Belt (TMVB), the largest intra continental volcanic arc around the world, related to the subduction of the Rivera and Cocos plates underneath the North American Plate. We performed a statistical analysis for the size-distribution of the basal diameter (Wco) for cinder cones. Dataset used here was compiled by Hasenaka and Carmichael (1985). Monogenetic volcanoes obey a power-law very similar to the Gutenberg-Richter law for earthquakes, with respect to their size-distribution: log(10) (N >=Wco) = alpha - beta log(10)(Wco), with beta = 5.01 and alpha = 2.98. Therefore, the monogenetic volcanoes exhibit a (Wco) size-distribution empirical power-law, suggesting a self-organized criticality phenomenon. (C) 2010 Elsevier B.V. All rights reserved.
Filiaciones:
Pérez-López R.:
IGME-Instituto Geológico y Minero de España, Departamento de Investigación y Prospectiva Geocientífica, Área de Riesgos Geológicos, C/Alenza, n 1, 28003, Madrid, Spain
Legrand D.:
Univ Nacl Autonoma Mexico, Inst Geofis, Dept Vulcanol, Mexico City 04360, DF, Mexico
Universidad Nacional Autónoma de México-UNAM, Instituto de Geofísica, Departamento de Vulcanología, CD Universitaria No3000, Col. Copilco Universidad, Del. Coyoacán, CP. 04360, México DF, Mexico
Rodríguez-Pascua M.A.:
IGME-Instituto Geológico y Minero de España, Departamento de Investigación y Prospectiva Geocientífica, Área de Riesgos Geológicos, C/Alenza, n 1, 28003, Madrid, Spain
Giner-Robles J.L.:
Universidad Autónoma de Madrid-UAM, Facultad de Ciencias, Campus Cantoblanco, Madrid, Spain
Instituto de Investigaciones Metalúrgicas, Universidad Michoacana de San Nicolás Hidalgo, Cuerpo Académico Consolidado de Ciencias de la Tierra, Ciudad Universitaria, Morelia, Michoacán, Mexico
|