the most common type of mechanical weathering that occurs in mid-latitude is called frost action/frost shattering/freeze and thaw weathering. this type of weathering occurs in mountainous areas of mid-latitude regions, where the temperature fluctuates around zero degrees. When water from snowmelt or rainfall freezes in cracks in rocks it expands. The continuous expansion and contraction of rocks as water freezes and thaws will eventually cause rocks to break off into angular fragments.