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Updated: Jul 12, 2026

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Data Processing Methods for 3D Seismic Imaging of Subsurface Volcanoes: Applications to the Tarim Flood Basalt
Published on: August 7, 2017
Basalto explosivo de aguas profundas en la grieta del arco de Sumisu.
Resumen
Las erupciones volcánicas submarinas de basalto toleiítico crean depósitos únicos de breccia escoriaciosa. El alto contenido de agua magmática impulsa la explosiva actividad volcánica submarina, formando depósitos piroclásticos.
Área de la Ciencia:
- Geología Geología Geología.
- Volcanología Volcanología.
- Geología marina Geología marina.
Sus antecedentes:
- Las erupciones volcánicas submarinas pueden producir depósitos que se asemejan a los subaéreos.
- Las grietas de Backarc son sitios de actividad volcánica significativa.
Objetivo del estudio:
- Para caracterizar un depósito piroclástico submarino único.
- Para investigar los procesos eruptivos del basalto toleiítico submarino profundo.
Principales métodos:
- Análisis de un depósito piroclástico de 135 metros de espesor.
- Análisis paleomagnético del depósito.
Principales resultados:
- El depósito, formado a partir de basalto toleiítico de 1 millón de años de antigüedad a una profundidad de >1800 m, es una breccia escoriaceosa.
- La evidencia sugiere que el aglutinato espumoso se soldó en una columna de erupción submarina o en el fondo marino.
- Las inclinaciones paleomagnéticas son aleatorias en escalas <2,5 metros.
- El contenido de agua magmática (1,3% en peso) contribuyó significativamente a la explosividad.
Conclusiones:
- Las erupciones submarinas profundas pueden generar actividad explosiva y aglutinar depósitos similares a las erupciones subaéreas.
- El alto contenido de agua magmática es un factor clave para impulsar el volcanismo explosivo submarino.
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