NASA's Mars Global Surveyor shows dark-toned buttes of possible sedimentary rock in southern Melas Chasma on Mars.

MGS MOC Release No. MOC2-336, 20 April 2003

This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) picture obtained in March 2003 shows dark-toned buttes of possible sedimentary rock in southern Melas Chasma. These buttes are remnants of a layer or sequence of layers that once covered this portion of the chasm floor. The buttes are located near 11.4°S, 75.1° W. Sunlight illuminates the scene from the upper right.

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