Landslides on Mars,satellite image. These ancient (around 3 billion years old) landslides,in Ophir Chasma,Mars,show surface albedo differences (brightness and darkness). The light-toned slopes are due to an abundance of hydrated sulphate minerals and bright surface dust. The darker surfaces are due to the greater frequency of dark sediment that form strings of sand drifts. These differences are due to changes in the ancient aqueous environments that formed these minerals. This image,published in 2013,was obtained by the High Resolution Imaging Science Experiment (HiRISE) instrument on NASA's Mars Reconnaissance Orbiter (MRO) satellite | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NASA / JPL / University of Arizona |
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