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Tyrrhena Dunes

April 8, 2006
This image from NASA's Mars Global Surveyor shows a portion of a field of dark sand dunes superposed on the light-toned floor of a crater in eastern Tyrrhena Terra.

8 April 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a portion of a field of dark sand dunes superposed on the light-toned floor of a crater in eastern Tyrrhena Terra. The orientation of the dunes -- with the steep faces toward the south (bottom) -- suggests that winds generally blew from north to south at the time the dunes were formed.

Location near: 14.6°S, 262.3°W
Image width: ~3 km (~1.9 mi)
Illumination from: lower left
Season: Southern Summer

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