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(The pyroclastic deposits of Saint-Vincent type from Pico de Orizaba, Mexico: peculiar events related to the recent evolution of the volcano).

Abstract:

Volcanological characteristics and ages of pyroclastic deposits (nuees ardentes) from Pico de Orizaba are presented. 14C data indicate that the eruptions started 13 000 yrs ago. During a period of 7000 to 8000 yrs, the volcano experienced various important pyroclastic events with a cycle in order of 1000 to 1500 yr. The eruptive cycle is interpreted as the result of recurring injection of deep renewed magma (high temperature) within a dactitic chamber rich in volatiles. Pyroclastic activity, linked to deep magma supplies, stresses the part of magma-mixing process during the evolution of this type of andesitic volcanoes. -from English summary

Año de publicación:

1983

Keywords:

    Fuente:

    scopusscopus

    Tipo de documento:

    Article

    Estado:

    Acceso restringido

    Áreas de conocimiento:

    • Volcanismo

    Áreas temáticas:

    • Petrología
    • Geología, hidrología, meteorología
    • Ciencias de la Tierra de América del Norte

    Contribuidores:

    Cantagrel J.M.Cantagrel J.M.
    Claude RobinClaude Robin
    Vincent P.M.Vincent P.M.