Four Kind of Caves

• solutional caves are generally formed in soluble rock like limestone or gypsum or dolomite. They form when acidic water dissolves the rock, seeping through the bedding planes. These are the most common type of cave
• lava caves are also called primary caves because they form at the same time as the surrounding rock. They are formed when lava flows and cools down leaving a hollow tube. Lava caves include but are not limited to lava tubes.
• sea caves are quite self-explanatory — they’re formed by the sea, due to the constant activity of waves. They can be both over and underwater and typically have large openings and spectacular views.
• glacier caves are caves not in rock, but in glaciers. They form when water flows inside the glacier, producing a tunnel-type formation. (Source: ZMEScience.com)

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