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La actividad eruptiva del Holoceno del volcán El Chichón, Chiapas, México
Science (New York, N.Y.)
|May 18, 1984
Resumen
El volcán El Chichón experimentó frecuentes y violentas erupciones del Holoceno, incluidos eventos importantes hace unos 600, 1250 y 1700 años. Estas erupciones explosivas de magma rico en azufre ocurrían a intervalos regulares, influyendo potencialmente en las condiciones atmosféricas.
Área de la Ciencia:
- Volcanología Volcanología.
- Geocronología Geocronología.
- Paleoclimatología Paleoclimatología
Sus antecedentes:
- El volcán El Chichón exhibe una historia de significativa actividad eruptiva del Holoceno.
- Las erupciones pasadas involucraron eventos explosivos y crecimiento de cúpula, impulsado por el magma rico en azufre.
Objetivo del estudio:
- Para reconstruir la historia eruptiva del volcán El Chichón.
- Para determinar la frecuencia y el momento de los eventos volcánicos pasados.
- Investigar posibles vínculos entre las erupciones y los fenómenos atmosféricos.
Principales métodos:
- Análisis de datos geológicos.
- Datamiento radiométrico de depósitos volcánicos.
Principales resultados:
- Evidencia de frecuentes y violentas erupciones del Holoceno, con eventos fechados hace aproximadamente 600, 1250 y 1700 años.
- Los episodios eruptivos, caracterizados por erupciones explosivas de magma rico en azufre y crecimiento de cúpula, ocurrieron a intervalos de 350 a 650 años.
- Posibles correlaciones entre las erupciones de El Chichón y eventos atmosféricos inusuales alrededor del año 1300 y 623 d.C.
Conclusiones:
- El Chichón tiene un patrón recurrente de erupciones violentas y ricas en azufre a lo largo del Holoceno.
- La historia eruptiva del volcán sugiere una naturaleza cíclica con intervalos de 350-650 años.
- Las erupciones de El Chichón pueden haber tenido un impacto discernible en las condiciones atmosféricas pasadas.
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