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Science 24 December 1982:
Vol. 218. no. 4579, pp. 1307 - 1308
DOI: 10.1126/science.218.4579.1307
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Articles

Eruption of El Chichón Volcano, Chiapas, Mexico, 28 March to 7 April 1982

JERRY M. HOFFER 1, FILIBERTO GOMEZ P. 1, and PEDRO MUELA 1

1 Department of Geological Sciences, University of Texas, El Paso 79968

El Chichón volcano erupted at 2322 hours on 28 March 1982 after being dormant during historic times. Three major eruptions of tephra occurred between that date and 7 April, discharging approximately 0.3 cubic kilometer of andesitic pyroclastic material. The initial eruption produced crystal-rich tephra of higher silica and alkali content than the lithic pyroclastic materials of the second and third eruptions. The initial tephra consists of primarily juvenile materials, whereas the later eruptions produced both lithic and juvenile fractions.

Submitted on April 20, 1982
Revised on October 1, 1982


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Holocene Eruptive Activity of El Chichon Volcano, Chiapas, Mexico.
R. I. Tilling, R. I. TILLING, M. RUBIN, H. SIGURDSSON, S. CAREY, W. A. DUFFIELD, and W. I. ROSE (1984)
Science 224, 747-749
   Abstract »    PDF »
El Chichon: Composition of Plume Gases and Particles.
J. M. P. Kotra, J. P. KOTRA, D. L. FINNEGAN, W. H. ZOLLER, M. A. HART, and J. L. MOYERS (1983)
Science 222, 1018-1021
   Abstract »    PDF »


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