Martian surface. This region is on the northern edge of the Magellan Crater in the Tharsis volcanic region. At top centre are mounds of rock,measuring up to 2 kilometres tall. It is not known how these mounds were formed,but they could be due to subrosion. Subrosion occurs when volcanic activity melts frozen ground water,which erodes underground cavities as it flows away. The cavities collapse due to weight from above,leaving irregular mounds on the surface. Image taken by the High-Resolution Stereo Camera (HRSC) on the Mars Express spacecraft | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Neukum, G. / FU Berlin / ESA / DLR |
Taille de l’image : | 5531 px × 3210 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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