Comparison of Some Parts of the Southern "Etch-Pitted" and Northern Fretted Terrains on Mars

Mathematics – Logic

Scientific paper

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Mars (Planet), Mars Surface, Ice, Planetary Geology, Etching, Terrain, Creep Properties, Morphology, Wind Erosion

Scientific paper

The purpose of this work was a morphological comparison of two types of eroded surface on Mars. These are the etch-pitted eroded parts of the southern layered terrains and the northern fretted terrains sculpted by fretted channels. There are some similarities between them: (1) both depressions are relatively young and may be the result of active processes, (2) the formerly flat surface was eroded away, (3) the morphology of the depressions is somewhat similar, and (4) ice is probably near to the surface at both places. Based on the up-to-date results the fretted terrains are formed by ice creeping and the etch-pitted terrains by wind erosion. The subsurface ice may played a role at both places in the generation of the depressions. Additional information can be found in the original extended abstract.

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