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Electric Polygons

July 14, 2006
NASA's Mars Global Surveyor shows erosional remnants of layered rock and large windblown ripples on the floor of a crater in the Tyrrhena Terra region of Mars. The layered rocks are most likely sedimentary.

14 July 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows erosional remnants of layered rock and large windblown ripples on the floor of a crater in the Tyrrhena Terra region of Mars. The layered rocks are most likely sedimentary.

Location near: 68.5°N, 191.8°W
Image width: ~3 km (~1.9 mi)
Illumination from: lower left
Season: Northern Spring

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