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> Mars: raising feature in Nicholson crater

Mars: raising feature in Nicholson crater

author: ESA/DLR/FU Berlin-G. Neukum/Novapix

reference: a-mar09-00061

Image Size 300 DPI: 59 * 44 cm

On 27 November 2004 the High-Resolution Stereo Camera onboard the ESA spacecraft Mars Express obtained image data in the region of Nicholson Crater, at approximately 0.0° southern latitude and 195.5° eastern longitude. Nicholson Crater, measuring approximately 100 km wide, is located at the southern edge of Amazonis Planitia, northwest of a region called Medusae Fossae. Located in the centre of this crater is a raised feature, approximately 55 km long and 37 km wide, which extends to a maximum height of roughly 3.5 km above the floor of the crater.
Up to now, it is unclear how this central form was shaped and what kind of processes led to its formation. It is widely discussed whether the remnant hill is composed of material from underground or was built as a result of atmospheric deposition. The peak structure in the center of this hill is the central peak of the crater, which forms when the ground rebounds after being compressed by the formation of the impact crater.

Keywords for this photo:

2004 - ASTRONOMY - CRATER - HILL - IMPACT CRATER - MARS - MARS EXPRESS - NICHOLSON - PLANET - POSTER -