Leye Karst Sinkhole Cluster Landscape, Guangxi
Reference work entry
This is a landscape that formed from a tiankeng cluster composed of an exceptionally large tiankeng group and another large tiankeng group. This cluster is located in western Leye County, Guangxi Province. Nearly 30 tiankengs have been found, of which the one in Dashiwei is exceptionally large, and others in Chuandong, Datuo and Dengjiatuo are also very large. The vadose zone of the karst aquifer in this tiankeng cluster area is 400–800 m thick. The associated rocks are thick Carboniferous and Permian limestone and dolomite with gentle dips. This topography mainly contains a large area of deep peak cluster depressions at elevations of 1,300–1,500 m. The Dashiwei Tiankeng is pear-shaped with a length of 600 m from east to west and a width of 420 m from north to south. Its perimeter is 1,580 m, and its greatest depth is 613 m. It is surrounded by steep cliffs, and its bottom is covered by gravels that are estimated to be 100–150 m thick. This tiankeng is covered by a lush subtropical...
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