贵州织金洞风景名胜区管理局.公益
Geo-knowledge
Development mode of river landform
Timer:2015-03-23

Development mode of river landform
Assume that the original landscape of a region is plain, and it is raised by the crustal movement until a certain height. The river will be developed according to the ideal mode of infancy→youth→old age.

In the figure, A, B are in infancy, C,D and E are in youth, and F is in old