摘要
Middle-Upper Proterozoic carbonate rock sediments were widely distributed in the mountainous area of Jixian County, they were turned into the material base for karst development. The authors depicted in details the types and distributing features of karst in the area and analyzed the development rule of karst. The study and analyses were of important significance for the urban planning and construction in the area, and also for the sake of security of geotechnical engineering and water supplying there.