There are four types of water erosion. They are freeze-thaw, biological, chemical, and exfoliation erosion. Freeze-thaw erosion occurs when water seeps into cracks or joints in rocks and then freezes.
Water expands when it freezes, therefore it tends to cause the rocks to crack (or perhaps I should say, it causes existing cracks to get larger, leading to the disintegration of the rock).
It is a form of weathering known as frost wedging.
It is called "frost weathering" or "freeze-thaw weathering" and occurs because water that freezes within the cracks in rocks will expand, compressing and eventually fracturing the rock.
erosion.
The term that is defined as erosion that occurs in open air is weathering.
Frostwegging
Physical
It cracks the rock
It is a form of weathering known as frost wedging.
Water expands when it freezes, therefore it tends to cause the rocks to crack (or perhaps I should say, it causes existing cracks to get larger, leading to the disintegration of the rock).
It is a form of weathering known as frost wedging.
It is called "frost weathering" or "freeze-thaw weathering" and occurs because water that freezes within the cracks in rocks will expand, compressing and eventually fracturing the rock.
Firstly, rain is slightly acidic, and will therefore attack vulnerable mineral constituents of the stone causing weakness and eventually failure over a long period. Secondly, where cold weather occurs, water can seep into small cracks and joints. When it freezes, it expands, thus causing damage by enlarging these cracks, and allowing the process to repeat and worsen. Thirdly, dampness promotes the growth of organic matter, the root systems of which can damage the surface of the stone (to an extent), and can also grow into cracks and joints, which have possibly been made larger by freeze-thaw action.
Erosion occurs in volcanoes.
erosion.
The one type of frost action is frost wedging, which occurs when water seeps into cracks in rocks, freezes, and expands, causing the rock to break apart.
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