The floor of Mars is affected by examples of glacier-like landforms. Whereas floor ice deposits are principally restricted to the polar caps, patterns of sluggish, viscous movement abound in lots of non-polar areas of Mars.
Streamlines that seem as linear ridges within the floor soils and rocky particles are sometimes uncovered on high of infilling deposits that coat crater and valley flooring. We see such patterns on the surfaces of Earth’s icy glaciers and debris-covered “rock glaciers.” As ice flows downhill, rock and soil are plucked from the encircling panorama and ferried alongside the flowing ice floor and inside the icy subsurface. Whereas this course of is gradual, taking maybe 1000’s of years or longer, it creates a community of linear patterns that reveal the historical past of ice movement.
Later and below hotter circumstances, the ice could also be misplaced by means of melting or sublimation. (Sublimation is the evaporation of ice straight from stable to fuel with out the presence of liquid.) Rock and minerals concentrated in these lengthy ridges are then left behind, draped over the preexisting panorama.
NASA ID: PIA25984 bigger imagery