Asked in GeologySpeleologyGrand Canyon
How is a cave formed?
March 20, 2013 12:25AM
Caves can form in a variety of ways, but most caves are
dissolutional and are initially formed by chemical weathering of
surface rock, usually limestone, by carbonic acid contained in
rainwater. As chemical weathering continues, mechanical weathering
joins in the fun to further attack and widen joints and fissures in
what is usually soluble sedimentary rock, like limestone.
Some other types of caves are formed by percolating sulfuric
acid, flowing lava, flowing water in glaciers, wave action, and