Vol. 25 No. 4 (1986)
Articles

HYDROTHERMAL ACTIVITY DETECTED BY SELF-POTENTIAL MEASUREMENTS AT THE N-S VOLCANIC AXIS BETWEEN THE VOLCANOES "NEVADO DE COLIMA" AND "VOLCAN DE FUEGO DE COLIMA" (MEXICO)

M. Aubert
IOPG et UAIO, 12 Avenue des Landais, 63000 Clermont-Fd. France
E. Lima
Instituto de Geofísica, UNAM, D. Coyoacán 04510, D. F., México

Published 1986-10-01

How to Cite

Aubert, M., & Lima, E. (1986). HYDROTHERMAL ACTIVITY DETECTED BY SELF-POTENTIAL MEASUREMENTS AT THE N-S VOLCANIC AXIS BETWEEN THE VOLCANOES "NEVADO DE COLIMA" AND "VOLCAN DE FUEGO DE COLIMA" (MEXICO). Geofísica Internacional, 25(4), 575-586. https://doi.org/10.22201/igeof.00167169p.1986.25.4.779

Abstract

Measurements of electrical self-potential (SP), taken on the north-facing slope of the Fuego de Colima volcano, show a large-scale anomaly non-correlated with the cone which is active at present. This may arise due to hydrothermal activity which originates in a highly fissured zone above a heat source, located deep below the surface of the earth. It is presumed that this anomaly is linked with the N-S volcanic axis, running from Nevado, the oldest volcano in the Colima volcanic chain, to Fuego, the site of the present activity.