The surface of Mars is littered with examples of glacier-like landforms. While surface ice deposits are mostly limited to the polar caps, patterns of slow, viscous flow abound in many non-polar regions of Mars. Streamlines that appear as linear ridges in the surface soils and rocky debris are often exposed on top of infilling deposits that coat crater and valley floors. 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 surrounding landscape and ferried along the flowing ice surface and within the icy subsurface. While this process is gradual, taking perhaps thousands of years or longer, it creates a network of linear patterns that reveal the history of ice flow.
Related posts
-
This Week In Space podcast: Episode 131 —The Star Wars vs. Star Trek Food Fight
The Star Wars vs. Star Trek Food Fight – Vulcan Launches, Voyager 2 Powers Down, the... -
Ancient supermassive black hole is blowing galaxy-killing wind, James Webb Space Telescope finds
Using the James Webb Space Telescope (JWST), astronomers have spotted the earliest powerful “galaxy-size” wind blowing... -
See Venus rendezvous with the crescent moon in the night sky tonight (Oct. 5)
On Saturday evening (Oct. 5) as darkness is falling, be sure to take a look low...