It appears that in the main the chips don't get pressed into the soil and get buried, rather they simply explode as you can see by the change in surface brightness near the larger dissapearing particles.
Does this imply that there is gas under pressure in these grains that is released when they are disturbed?
Does this imply that there is gas under pressure in these grains that is released when they are disturbed? if so, it would support the theory that liberal politicians are indeed Martians, seemingly made of the same material.