G'Day Orestis;
On sublimation: yep what you said is correct.
What they're saying here is:
Quote:
|
Other suggested mechanisms are that gas from sublimating frost could lubricate a flow of dry sand or erupt in puffs energetic enough to trigger slides.
|
There's a lot of ice also on the poles of Mars.
The exact mixture of carbon dioxide and water in that ice, is not yet precisely known.
Some of the probes have measured the composition of small samples and they have also taken photos of ice sublimating in the trenches of the 'scoops' they made. Because of the slow sublimation rate measured from the photos, they believe that ice is composed mainly of water (H2O).
Cheers