SIMON FRASER / SCIENCE PHOTO LIBRARY SIMON FRASER / SCIENCE PHOTO LIBRARY
Limestone pavement. A view of limestone pavement, a flat exposure of bare limestone consisting of irregular blocks separated by clefts. The joints within the limestone have been enlarged by chemical weathering to form this pattern of clints (ridges) and grykes (clefts). Limestone pavements are typical of Karst scenery, a type of limestone topography produced by percolating ground waters and underground streams and named after the Karst region of former Yugoslavia. The pavement seen here is near Malham Cove in Yorkshire, UK.
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