Volcán El Chichón, Mexico: Pre-1982 S-rich eruptive activityJournal of Volcanology and Geothermal Research
AbstractMapping and sampling of the interior of El Chichón Volcano was made possible by the exposures of the 1982 explosion crater. The 1-km-diameter, 200-m-deep crater exposes rocks produced during several eruptive episodes: volcanic domes, talus breccias, plinian airfall deposits and pyroclastic-flow deposits of compositionally similar alkalic hornblende-trachyandesites with phenocrysts of anhydrite. All of the rocks, except those leached of anhydrite, have extremely high S contents. El Chichón consists of a volcanic dome complex, airfall debris, and pyroclastic outflow sheets. Prior to 1982, its last major activity was about 650 ± 100 yr B.P.
Citation InformationWilliam I. Rose, Theodore J. Bornhorst, S. P. Halsort, William A. Capaul, et al.. "Volcán El Chichón, Mexico: Pre-1982 S-rich eruptive activity" Journal of Volcanology and Geothermal Research Vol. 23 Iss. 1-2 (2003) p. 147-149 - 155-167
Available at: http://works.bepress.com/william-rose/164/