Your browser doesn't support javascript.
loading
Identification of carbonate-rich outcrops on Mars by the Spirit rover.
Morris, Richard V; Ruff, Steven W; Gellert, Ralf; Ming, Douglas W; Arvidson, Raymond E; Clark, Benton C; Golden, D C; Siebach, Kirsten; Klingelhöfer, Göstar; Schröder, Christian; Fleischer, Iris; Yen, Albert S; Squyres, Steven W.
Afiliación
  • Morris RV; NASA Johnson Space Center, Houston, TX 77058, USA. richard.v.morris@nasa.gov
Science ; 329(5990): 421-4, 2010 Jul 23.
Article en En | MEDLINE | ID: mdl-20522738
Decades of speculation about a warmer, wetter Mars climate in the planet's first billion years postulate a denser CO2-rich atmosphere than at present. Such an atmosphere should have led to the formation of outcrops rich in carbonate minerals, for which evidence has been sparse. Using the Mars Exploration Rover Spirit, we have now identified outcrops rich in magnesium-iron carbonate (16 to 34 weight percent) in the Columbia Hills of Gusev crater. Its composition approximates the average composition of the carbonate globules in martian meteorite ALH 84001. The Gusev carbonate probably precipitated from carbonate-bearing solutions under hydrothermal conditions at near-neutral pH in association with volcanic activity during the Noachian era.
Asunto(s)
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carbonatos / Agua / Marte Tipo de estudio: Diagnostic_studies Idioma: En Revista: Science Año: 2010 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carbonatos / Agua / Marte Tipo de estudio: Diagnostic_studies Idioma: En Revista: Science Año: 2010 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos