| http://www.w3.org/ns/prov#value | - in that is generally underlain by soluble rocks, such as limestone and dolomite, where the landscape evolves largely through the dissolution of rock. ??? ??? ??? Cave A cavity in rock, produced by the dissolution of calcium carbonate, that is lrge enough for someone to enter. ??? ??? ??? Sinkhole A topographic depression that forms when underlying rock dissolves, causing the surface to collapse. ?
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