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Landslide!

Sept. 17, 2003
NASA's Mars Global Surveyor shows part of a deposit created by a landslide off the wall of a crater on Mars. These layers represent a long history of sedimentation that occurred in Gale Crater at some time in the distant martian past.

MGS MOC Release No. MOC2-486, 17 September 2003

This August 2003 Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows part of a deposit created by a landslide off the wall of a crater near 12.3°N, 21.3°W. The crater wall is not shown; it is several kilometers to the left of this picture. The debris that slid from the crater wall came from the left/upper left (northwest) and moved toward the lower right (southeast). The crater floor onto which the debris was deposited has more small meteor craters on it than does the landslide material; this indicates that there was a considerable interval between the time when the crater floor formed, and when the landslide occurred. This picture covers an area 3 km (1.9 mi) wide. Sunlight illuminates the scene from the lower left.

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