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Updated: Jul 12, 2026

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Simulation of the Planetary Interior Differentiation Processes in the Laboratory
Published on: November 15, 2013
Agua en el manto de la Tierra: El papel de los minerales nominalmente anhidros
Resumen
La Tierra La Tierra La Tierra La Tierra La Tierra
Área de la Ciencia:
- La geoquímica es la geoquímica.
- La mineralogía es la Mineralogía.
- Petrología Petrología.
Sus antecedentes:
- El manto superior de la Tierra contiene hidrógeno, principalmente como hidroxilo (OH) dentro de los minerales.
- La concentración de hidroxilo varía entre las especies minerales y refleja las condiciones de formación geológica.
- Los minerales nominalmente anidrosos son reservas significativas para el hidrógeno del manto.
Objetivo del estudio:
- Para cuantificar las concentraciones de hidroxilo (OH) en los principales minerales del manto superior.
- Evaluar el papel de los minerales nominalmente anidrosos en el presupuesto de agua del manto y la geoquímica del hidrógeno.
- Para investigar el potencial de reciclaje de agua en el manto profundo a través de estos minerales.
Principales métodos:
- Análisis del contenido de hidroxilo (OH) en piroxenos, granates y olivinas.
- Medidas de concentración de H(2) O basadas en el peso.
- Modelado geoquímico de las reservas de hidrógeno en el manto.
Principales resultados:
- Los piroxenos son los minerales del manto mayor con mayor cantidad de agua (200500 ppm H(2) O).
- Los granates y las olivinas contienen significativamente menos agua (150 ppm H(2) O).
- Es probable que los minerales nominalmente anidrosos retengan toda el agua en el manto agotado.
Conclusiones:
- Los minerales nominalmente anidrosos, especialmente los piroxenos, son cruciales para el almacenamiento de agua en el manto.
- Estos minerales juegan un papel clave en la geoquímica del hidrógeno del manto superior.
- Ofrecen un mecanismo plausible para reciclar el agua superficial en las profundidades de la Tierra.
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