NASA's Mars Global Surveyor shows Tithonium Chasma is one of the troughs of the vast Valles Marineris canyon system on Mars as seen by NASA's Mars Global Surveyor.

MGS MOC Release No. MOC2-445, 7 August 2003

Tithonium Chasma is one of the troughs of the vast Valles Marineris canyon system. Within many of these troughs are outcrops of light-toned, layered, sedimentary rock. This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows eroded sedimentary rock exposures overlain by the remnants of a smoother-surfaced, dark material. The dark feature is a younger sedimentary deposit made of a different material than the light-toned sediments; it covered the lighter rocks after they were eroded to their present form. This area is located near 5.0°S, 89.8°W. Sunlight illuminates the scene from the lower left.

View all Images