PIA07123: Memnonia Sulci Yardangs
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Global Surveyor (MGS)
 Spacecraft:  Mars Global Surveyor Orbiter
 Instrument:  Mars Orbiter Camera (MOC)
 Product Size:  512 x 768 pixels (w x h)
 Produced By:  Malin Space Science Systems
 Producer ID:  MOC2-934
 Full-Res TIFF:  PIA07123.tif (393.8 kB)
 Full-Res JPEG:  PIA07123.jpg (100.4 kB)

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Original Caption Released with Image:

8 December 2004
Yardangs are ridges formed by wind erosion. Most commonly, they will form in sedimentary rocks or volcanic ash deposits containing some amount of sand-sized grains (particles of 0.0625 to 2.0 millimeters size, like the grains in common table salt). This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a suite of yardangs in the Memnonia Sulci region. The scene is located near 9.3S, 172.4W, and covers an area about 3 km (1.9 mi) wide. The ridges are illuminated by sunlight from the upper left.

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2004-12-08