Softened Terrain (Mars)
Terrain displaying rounded and subdued topography.
The soft appearance of topographic features at high latitudes on Mars, caused by smoothing of topography with a characteristic vertical scale on the order of several meter(s). Terrain softening affects all types of landforms, but it is particularly evident on softened craters (Fig. 1). It is characterized with broad slope inflections and convex slope segments (Squyres et al. 1992, p. 543).
Latitude-dependent trends in crater depth, concentric crater infill, etc., related to creep of a hundreds-of-meters-thick layer ( lineated valley fill).
- Squyres SW, Clifford SM, Kuzmin RO, Zimbelman JR, Costard FM (1992) Ice in the Martian regolith. In: Kieffer HH (ed) Mars. University of Arizona Press, Arizona, 1498 ppGoogle Scholar