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Ciencias de la Tierra: ¿un conductor del manto húmedo?
1Department of Geology and Geophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA. marc.m.hirschmann-1@umn.edu
Nature
|January 27, 2006
Resumen
La zona de transición del manto de la Tierra puede no contener tanta agua como se pensaba anteriormente. Las condiciones reducidas, no el alto contenido de agua, probablemente explican su conductividad eléctrica, lo que afecta a la geodinámica y la geoquímica.
Área de la Ciencia:
- La geofísica es la geofísica.
- La geoquímica es la geoquímica.
- Física de los minerales Física de los minerales
Sus antecedentes:
- La zona de transición del manto de la Tierra (410-670 km de profundidad) es crucial para la dinámica del manto y el ciclo global del agua.
- Estudios anteriores sugirieron un enriquecimiento significativo del agua en esta zona basado en la conductividad eléctrica.
- Esta interpretación se basó en suposiciones de condiciones oxidadas dentro de la zona de transición.
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