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Edad de Hesperio para la formación occidental de las Fosas Medusas, Marte

James R Zimbelman¹, Stephen P Scheidt

¹Center for Earth and Planetary Studies, MRC 315, National Air and Space Museum, Smithsonian Institution, Washington, DC 20013-7012, USA. zimbelmanj@si.edu

Science (New York, N.Y.)

|May 26, 2012

Resumen

La Formación Medusae Fossae (MFF) en Marte muestra nueva evidencia de su extensión cerca del cráter Gale. Los recuentos de cráteres de impacto sugieren una comprensión revisada de la historia del MFP y los materiales en capas en Marte.

Área de la Ciencia:

Ciencias planetarias Ciencias planetarias.
Geología Marciana Geología Marciana.

Sus antecedentes:

La Formación Medusae Fossae (MFF) es un gran depósito erosionado en Marte, al norte de las tierras altas con cráteres.
Se cree ampliamente que el MFF se formó a partir de erupciones de ignimbrita.

Objetivo del estudio:

Para investigar la historia geológica y la extensión de la Formación Medusae Fossae.
Analizar las implicaciones de los nuevos descubrimientos de material del MFP cerca del cráter Gale.

Principales métodos:

Cartografía geológica de la formación occidental de las Fosas Medusae.
El cráter de impacto cuenta en unidades de MFF.

Principales resultados:

Se identificaron valores atípicos de materiales del MFP más allá de los límites previamente mapeados, que se extienden cerca del cráter Gale.
El análisis de cráteres de impacto proporciona nuevos datos sobre las unidades de edad del MFP.

Conclusiones:

Los hallazgos amplían la extensión conocida de la Formación Medusae Fossae.
Los recuentos de cráteres ofrecen información sobre la historia del MFF y los depósitos en capas del cráter Gale.

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