Nilosyrtis Mensae
Fretted terrain in the Casius quadrangle on Mars / From Wikipedia, the free encyclopedia
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Nilosyrtis Mensae is an area of Mars in the Casius quadrangle. It is centered on the coordinates of 36.87° N and 67.9° E. Its western and eastern longitudes are 51.1° E and 74.4° E. North and south latitudes are 36.87° N and 29.61° N.[2] Nilosyrtis Mensae is just to the east of Protonilus Mensae and both lie along the Martian dichotomy boundary. Its name was adapted by the IAU in 1973. It was named after a classical albedo feature, and it is 705 km (438 mi) across.
Coordinates | 36.87°N 67.9°E / 36.87; 67.9 |
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Dimensions | 705 km across |
Naming | a classical albedo feature |
The surface of Nilosyrtis Mensae is classified as fretted terrain. This terrain contains cliffs, mesas, and wide flat valleys. Surface features are believed to have been caused by debris-covered glaciers.[3][4] These glaciers are termed lobate debris aprons when surrounding mounds and mesas.[5][6][7][8] When the glaciers are in the valleys they are called lineated valley fill.[9][10][11][12]