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Exploration of Victoria crater by the Mars rover Opportunity.
Science ; 324(5930): 1058-61, 2009 May 22.
Article en En | MEDLINE | ID: mdl-19461001
The Mars rover Opportunity has explored Victoria crater, an approximately 750-meter eroded impact crater formed in sulfate-rich sedimentary rocks. Impact-related stratigraphy is preserved in the crater walls, and meteoritic debris is present near the crater rim. The size of hematite-rich concretions decreases up-section, documenting variation in the intensity of groundwater processes. Layering in the crater walls preserves evidence of ancient wind-blown dunes. Compositional variations with depth mimic those approximately 6 kilometers to the north and demonstrate that water-induced alteration at Meridiani Planum was regional in scope.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Marte Idioma: En Revista: Science Año: 2009 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Marte Idioma: En Revista: Science Año: 2009 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos