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Acreción continental: desde las mesetas oceánicas hasta los terrenos alloctonos
Science (New York, N.Y.)
|July 3, 1981
Resumen
Las modernas mesetas oceánicas pueden ser terrenos alloctonos que causan complejo volcanismo y formación de montañas cuando chocan con los continentes durante la subducción. Este proceso es comparable a los eventos de colisión continental.
Área de la Ciencia:
- Geología Geología Geología.
- Oceanografía La oceanografía es la oceanografía.
- La tectónica de placas es la tectónica de placas.
Sus antecedentes:
- Topografía anormalmente alta del fondo marino en los océanos.
- Potenciales terrenos modernos alloctonos que se mueven con las placas oceánicas.
Objetivo del estudio:
- Investigar el papel de las mesetas oceánicas en los procesos geológicos.
- Comprender su impacto en los márgenes continentales y la formación de montañas.
Principales métodos:
- Análisis de los datos topográficos del fondo marino.
- Modelado geodinámico de las interacciones de las placas.
Principales resultados:
- Las mesetas oceánicas pueden actuar como terrenos alloctonos.
- Su acreción conduce a un complejo volcanismo y deformación orogénica.
- Atrapamiento de la corteza oceánica durante la subducción.
Conclusiones:
- La acreción de mesetas durante la subducción puede generar cadenas montañosas comparables a las colisiones continentales.
- Estos procesos influyen significativamente en la evolución de los márgenes continentales.
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