NASA's Mars Global Surveyor shows light-toned sedimentary rocks exposed by erosion in the Iani Chaos region of Mars.

23 February 2005
This Mars Global Surveyor (MGS) Orbiter Camera (MOC) image shows light-toned sedimentary rocks exposed by erosion in the Iani Chaos region of Mars.

Location near: 4.2°S, 18.7°W
Image width: ~1 km (~0.6 mi)
Illumination from: upper left
Season: Southern Winter

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