Is Freeze Thaw Erosion Or Weathering. When the temperature drops below 0°c water in a crack in a rock will freeze. Exfoliation occurs as cracks develop parallel to the land surface a consequence of the reduction in pressure during uplift and erosion.
As the ice expands, it pushes cracks in asphalt apart, making them larger. There are two main types of physical weathering: The air consists of water and moisture.