<P> Karst topography is a landscape formed from the dissolution of soluble rocks such as limestone , dolomite , and gypsum . It is characterized by underground drainage systems with sinkholes and caves . It has also been documented for more weathering - resistant rocks , such as quartzite , given the right conditions . Subterranean drainage may limit surface water , with few to no rivers or lakes . However , in regions where the dissolved bedrock is covered ( perhaps by debris ) or confined by one or more superimposed non-soluble rock strata , distinctive karst surface developments might be totally missing , the features occurring at subsurface levels . </P>
<P> Karst topography is a landscape formed from the dissolution of soluble rocks such as limestone , dolomite , and gypsum . It is characterized by underground drainage systems with sinkholes and caves . It has also been documented for more weathering - resistant rocks , such as quartzite , given the right conditions . Subterranean drainage may limit surface water , with few to no rivers or lakes . However , in regions where the dissolved bedrock is covered ( perhaps by debris ) or confined by one or more superimposed non-soluble rock strata , distinctive karst surface developments might be totally missing , the features occurring at subsurface levels . </P>
numerous circular pits found in the karst region are called
numerous circular pits found in the karst region are called
sinkholes
sinkholes