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Formations and Types of caves A cave is a chamber beneath the surface of the earth or in the side of a hill, cliff, or mountain. Caves vary in size and shape, and many have large openings to the surface. There are many types of caves, such as: ice caves, solution, wind, gravity-slip-block caves, fissure or rift, talus, sea, and lava tube caves. Gravity-slip-block and fissure or rift caves from in areas where there is …

…it. This carbonic acid comes from the CO2 given off from decaying biologic material, and mixing with other elements in the rocks to form the weak acid. The water finds its ways into the water table, to the zone of saturation, where the carbonic acid dissolves the limestone or Dolostone, and forms caves. These solution only occur in limestone and Dolostone, because they are the only rocks that can be dissolved by the carbonic acid.