Freeze-Thaw weathering happens in areas where the temperature can drop below freezing point (0′). More often it can be found in mountainous regions.
1. Freeze-Thaw Action
Water gets into a crack in a rock.
When the temperature drops below freezin the water in the rock turns to ice.
The ice expands and places pressure on the rock .
When the temperature drops below freezin the water in the rock turns to ice.
The ice expands and places pressure on the rock .
When the ice melts the cracks can deepen and widen, or the rock can crumble and fall away. The rock that breaks away is called scree.
