NASA's Mars Global Surveyor shows layered sedimentary rock outcrops exposed by erosion in southern Melas Chasma on Mars, one of the major Valles Marineris troughs.

04 August 2004
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows layered sedimentary rock outcrops exposed by erosion in southern Melas Chasma, one of the major Valles Marineris troughs. Such outcrops are common in southern Melas; they resemble the rock outcrops seen in some of the chaotic terrains and other Valles Marineris chasms. This image is located near 11.9°S, 74.6°W, and is about 3 km (1.9 mi) wide. Sunlight illuminates the scene from the lower left.

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