What process describes the repeated thawing and freezing of water in cracks of rocks?

The process of repeated thawing and freezing of water in cracks of rocks is specifically known as frost wedging. This occurs when water seeps into cracks in rocks and freezes when temperatures drop. As water freezes, it expands, exerting pressure on the surrounding rock. When the ice thaws, the pressure is released, and over time, this cycle of freezing and thawing can cause the cracks to widen and eventually break the rock apart. Frost wedging is a significant form of mechanical weathering, leading to the fragmentation of rock without altering its chemical composition. This process is especially common in climates where temperatures fluctuate around the freezing point, contributing to the natural breakdown and erosion of rocks and landscapes.