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Cambios químicos de los lagos dentro de la zona de explosión del monte St. Helens
Science (New York, N.Y.)
|April 9, 1982
Resumen
El Monte St. Helens es también conocido como Monte St. Helens.
Área de la Ciencia:
- La geoquímica es la geoquímica.
- Volcanología Volcanología.
- Ciencias del medio ambiente Ciencias del medio ambiente.
Sus antecedentes:
- La erupción de 1980 del Monte St. Helens alteró significativamente el entorno circundante.
- Los lagos dentro de la zona de explosión experimentaron un impacto directo de los depósitos volcánicos y la trayectoria de la explosión.
Objetivo del estudio:
- Para investigar las diferencias químicas disueltas en los lagos afectados por la erupción del Monte St. Helens.
- Para determinar la influencia de los depósitos magmáticos y líticos en la química de los lagos.
Principales métodos:
- Comparación de las mediciones químicas previas y posteriores a la erupción para el lago Spirit.
- Análisis de los ratios de enriquecimiento elemental y las concentraciones químicas en los lagos dentro y fuera de la zona de explosión.
Principales resultados:
- Las variaciones químicas disueltas están relacionadas con la proximidad a la trayectoria de la explosión lateral de la erupción.
- El enriquecimiento elemental refleja la disolución de los depósitos magmáticos y líticos.
- Se observaron cambios menores en el pH debido a los procesos de amortiguación y alteración mineral.
Conclusiones:
- La química del lago está significativamente influenciada por la ubicación relativa a la explosión volcánica y el tipo de materiales depositados.
- Los mecanismos de amortiguación limitaron los principales cambios de pH a pesar de los eventos geológicos significativos.
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