Artículo

A widespread mafic volcanic unit at the base of the Mexican Volcanic Belt between Guadalajara and Querétaro

Ferrari, Luca; Garduño, Victor Hugo; Innocenti, Fabrizio; Manetti, Piero; Pasquare, Giorgio; Vaggelli, Gloria

Instituto de Geofísica, UNAM, publicado en Geofísica Internacional, y cosechado de Revistas UNAM

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Procedencia del contenido

Entidad o dependencia
Instituto de Geofísica, UNAM
Revista
Repositorio
Contacto
Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

Cita

Ferrari, Luca, et al. (1994). A widespread mafic volcanic unit at the base of the Mexican Volcanic Belt between Guadalajara and Querétaro. Geofísica Internacional; Vol. 33 No. 1, 1994. Recuperado de https://repositorio.unam.mx/contenidos/42272

Descripción del recurso

Autor(es)
Ferrari, Luca; Garduño, Victor Hugo; Innocenti, Fabrizio; Manetti, Piero; Pasquare, Giorgio; Vaggelli, Gloria
Tipo
Artículo de Investigación
Área del conocimiento
Físico Matemáticas y Ciencias de la Tierra
Título
A widespread mafic volcanic unit at the base of the Mexican Volcanic Belt between Guadalajara and Querétaro
Fecha
2012-06-12
Resumen
In central Mexico, large basaltic plateaux, mainly emplaced between 10 and 6 Ma, form the basal part of the Plio-Quaternary Volcanic of the Mexican Volcanic Belt (MVB). In the Guadalajara and Querétaro areas these planteaux are separated from the late-Oligocene to early-Miocene Sierra Madre Occidental ignimbrites and andesites by a period of volcanic quiescence marked by various erosional deposits, whereas in the areas surrounding the Chapala and Cuitzeo lakes they overlie andesitic sequences of middle-to late-Miocene age. The plateau lavas are relatively primitive (Mg# 66-52), did not undergo significant low pressure fractionation, and display clear calc-alkaline affinities. They represent the first widespread and uniform volcanic event in MVB history, Geological and geochemical data suggest that these basalts were emplaced during the first extensional tectonic phase that accompanied the development of the MVB.
Tema
Basaltic plateau; late Miocene; major and trace elements; geochemistry; Guadalajara; Querétaro; Mexican Volcanic Belt; Mesetas de basalto; Mioceno Tardío; elementos mayores; elementos traza; geoquímica; Guadalajara; Querétaro; Faja Volcánica Trans-Mexicana
Idioma
spa
ISSN
0016-7169

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