NASA's Mars Global Surveyor shows light-toned sedimentary rock outcrops on the floors of the chasms associated with the Valles Marineris system of Mars and neighboring outflow channels.

MGS MOC Release No. MOC2-433, 26 July 2003

Light-toned sedimentary rock outcrops are common on the floors of the chasms associated with the Valles Marineris system and neighboring outflow channels. This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows an outcrop of sedimentary rock in Juventae Chasma near 4.1°S, 62.0°W. The scene is illuminated by sunlight from the left.

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