Development features and original altitude of a karst planation surface: Preliminary review  

作　　者：LI Dewen GUI Zhijiu ZHANG Qiang MA Baoqi 

机构地区：[1]Department of Geography,Nanjing University,Nanjing 210093,China [2]Department of Geography,Peking University,Beijing 100871,China [3]Institute of Crystal Dynamics,CSB,Beijing 100085,China

出　　处：《Chinese Science Bulletin》2001年第S1期33-38,共6页

基　　金：This work was supported by the State Key Project on Fundamental Research Planning (Grant No. G1998040800) ;CAS Pandeng Projects (Grant No. kz951 -A 1 -204 and kz95T-06).

摘　　要：Traditional theories of geographical cycle and pediplain cannot describe correctly the development of planation surfaces in karst regions. Authors, therefore, put forward conception of karst planation and karst planation surface, suggesting that karst planation is another type of planation process characterized by chemical erosion and transformation. To identify the distinction between evolution features of normal landforms and those of karst landforms developed in the South China, authors suggest karst planation surfaces under similar environmental conditions may reach a lower altitude and gradient ratio, in contrast with normal landform areas. This may be applied to researching on Tibetan Plateau uplift.Traditional theories of geographical cycle and pediplain cannot describe correctly the development of planation surfaces in karst regions. Authors, therefore, put forward conception of karst planation and karst planation surface, suggesting that karst planation is another type of planation process characterized by chemical erosion and transformation. To identify the distinction between evolution features of normal landforms and those of karst landforms developed in the South China, authors suggest karst planation surfaces under similar environmental conditions may reach a lower altitude and gradient ratio, in contrast with normal landform areas. This may be applied to researching on Tibetan Plateau uplift.

关 键 词：KARST planation surface PENEPLAIN pediplain TIBET Plateau. 

分 类 号：P541[天文地球—构造地质学]