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Simulation of the Planetary Interior Differentiation Processes in the Laboratory
Published on: November 16, 2013
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Óxidos férricos y sulfatos acoplados en la superficie marciana
J-P Bibring1, R E Arvidson, A Gendrin
1Institut d'Astrophysique Spatiale, Batiment 121, 91405 Orsay Campus, France. bibring@ias.fr
Science (New York, N.Y.)
|August 4, 2007
Resumen
Marte Marte es el planeta Marte.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Astrobiología Astrobiología.
- Geología Geología Geología.
Sus antecedentes:
- El Rover de Exploración de Marte (MER) Opportunity identificó depósitos de sulfato en capas en Meridiani Planum.
- Estos depósitos sugieren la formación durante un período de aumento de las aguas subterráneas ácidas.
Objetivo del estudio:
- Para investigar la ocurrencia generalizada de depósitos de hematita cristalina en Marte.
- Para determinar si el sistema acuoso de Meridiani Planum es representativo de las condiciones marcianas más amplias.
Principales métodos:
- Análisis de los datos orbitales del Mars Express del Observatorio para la Mineralogía, el Agua, los Hielos y la Actividad (OMEGA).
- Correlación de las ocurrencias de hematita cristalina con depósitos de sulfato en capas.
Principales resultados:
- Los depósitos de hematita cristalina están geográficamente asociados con sulfatos en capas en múltiples ubicaciones marcianas.
- Esta asociación indica procesos de alteración acuosa muy extendidos.
Conclusiones:
- Los sistemas de aguas subterráneas ácidas, similares a los de Meridiani Planum, eran probablemente extensos a través de Marte.
- Estos hallazgos apoyan la hipótesis de un sistema acuoso de sulfato ácido extendido en el pasado de Marte.
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