A Tentative Discussion on the Definition and Classification of Danxia Landform

Researches on Danxia Landform began in the 1920s and 1930s.Professor FENG Jing-lan and Professor CHEN Guo-da,two Chinese Geologists,were the first persons who named and studied this kind of landform.Since then,the definition of the morphologic term ‘Danxia Landform' has been used by Chinese geologists;nevertheless,there exist dozens of concepts about the Danxia landform,with each concept having its particular emphasis.According to the understanding of geotectonic activities and neotectonism,the authors typically expanded the concept and classification of Danxia Landform and,on the basis of previous researchers' work,further studied and investigated the accurate definition and scope of application of Danxia Landform.