Wind tails, wind erosion and wind deposits in Becquerel Crater
Wind tails, wind erosion and wind deposits in Becquerel Crater
In this perspective view from the southwest of a heavily eroded crater and the rim of Becquerel Crater (in the centre of the image), it is clear how dark sand and dust transported by the wind have been deposited in natural obstacles such as on the crater rim and in wind-protected depressions. These sands appear blue-black in colour due to an increase in the contrast of the camera's colour channels; in reality they are grey-black. They are probably volcanic in origin. In the background and inside Becquerel Crater, a mountain around a kilometre high, consisting of bright, sulphurous sediments can be seen.
Copyright note:
As a joint undertaking by DLR, ESA and FU Berlin, the Mars Express HRSC images are published under a Creative Commons licence since December 2014: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO. This licence will also apply to all HRSC images released to date.