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Last updated on April 16, 2014 at 1:21 EDT
Inside Sulci Gordii
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Inside Sulci Gordii

May 7, 2013
Close-up of the ‘sulci’ features that define Sulci Gordii. Sulci are roughly parallel sets of ridges and valleys likely formed through tectonic and erosional processes. A prominent fault line extends along the left side of the image, while smooth lava plains overlay parts of the sulci. Sulci Gordii is an aureole deposit resulting from the dramatic collapse of the flank of Olympus Mons in its distant past. The image was taken by the High Resolution Stereo Camera onESA’s Mars Express on 23 January 2013 (orbit 11531), with a ground resolution of about 31 m per pixel. Sulci Gordii lies at approximately 17°N / 234°E, about 200 km east of Olympus Mons. ESA/DLR/FU Berlin (G. Neukum)