Dissolution sinkholes form as subsurface rock dissolves by water.
Detailed Description
Dissolution sinkholes
Dissolution of the limestone or dolomite is most intensive where the water first contacts the rock surface. Aggressive dissolution also occurs where flow is focussed in preexisting openings in the rock, such as along joints, fractures, and bedding planes, and in the zone of water-table fluctuation where ground water is in contact with the atmosphere.
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Public Domain.
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