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Soluble rocks (dissolution) Sinkhole; as the water filters down through the rocks above, the salt starts to dissolve and the rocks above drop down to form a sinkhole. Ground dissolution occurs when water passing through soluble rocks produces underground cavities and cave systems. These cavities reduce support to the ground above and can cause localised collapse of the overlying rocks and deposits.
Weathering is simply the physical breakup (disintegration) and chemical breakdown (decomposition) of a rock. The two processes work in concert to weaken and tear apart the rocky foundation so it can be more easily eroded.Each processes increases the effectiveness of the other.hemical weathering (decomposition). Processes of Chemical weathering. Chemical weathering breaks down minerals into different chemical components. Rocks, such as rock salt and limestone dissolve entirely, this is known as congruent solution.