The Earth Contents

3. Weathering

Physical weathering can reduce massive rocks to small particles

Once blocks have been separated from a cliff they become exposed to gravity-induced collisions. Other blocks may fall on them, and running water may also cause movement and collisions. Each collision may fragment the blocks still further and may abrade grains from exposed edges. In this way physical weathering can ultimately reduce even the most substantial rock mass to a collection of small particles.

Physical weathering can reduce massive rocks to small particles.

How can physical weathering reduce massive rocks to small particles?