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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.
Chemical weathering is the weakening and subsequent disintegration of rock by chemical reactions. These reactions include oxidation, hydrolysis, and carbonation. These processes either form or destroy minerals, thus altering the nature of the rockâs mineral composition.aCO3 + H2CO3 â Ca2+ + 2HCO3- (calcite + carbonic acid â calcium + bicarbonate). Hydrolysis is a chemical reaction caused by water. Water changes the chemical composition and size of minerals in rock, making them less resistant to weathering.