The so-called weathering zones are actually just normal expressions of mountain bodies.
Weathering zones usually appear after earthquakes due to the alteration of rock textures following mountain body faults.
This natural phenomenon can be seen in many places, such as Hainan No.1 Mountain and Yunnan's Stone Forest at Lunan, where the unique peaks and rocks of Dongshan Ridge, and the peculiar peaks, hidden caves, stone forests, and underground rivers of the Stone Forest at Lunan, are all results of rock weathering.
The appearance of weathering zones brings not only physical changes in rocks but also subsequent chemical changes.
For example, coal mines undergo structural and color changes during the weathering process. Some rocks contain calcium carbonate, which undergoes chemical changes during weathering, resulting in various strange shapes, like stalactites, which are the result of weathering.