Fluvial Competition: Exemplified by Formation and Evolution of the Fen River and Jinshan Yellow River
详细信息
- 责任者：Zhang Ke (Department of Earth Sciences ; Sun Yat-Sen University ; Guangzhou 510275)
- 刊名：Quaternary Sciences
- 出版年：2012
- 卷期：32(5)
- 关键词：流水地貌 ; fluvial features ; 黄河 ; Yellow River ; 汾河 ; Fenhe River
- 页码：p.859-865
- 图表：illus., 37 refs.
- 分类号：1400
- isbnNo：CN11-2708/P
摘要
The Fen River and the Jinshan Yellow River(east reach of the square bend shape Yellow River around the Ordos block in North China)on east and west sides of the Lüliang Mountains are taken as an example of fluvial competition in this paper.Comparing the Yellow River,the Fen River is only its tributary.However,based on their very detailed field investigation(more than 400 sites)on deposition from Late Neogene to Quaternary and chronological study including magnetostrigraphy,loess serigraphy and OSL dating along the Jinshan Yellow River,and incorporated with former research on both the Jinshan Yellow River and Fen River,it is concluded that before connection of the Hetao Basin to the north,the Jinshan Yellow River and ancient Fen River had shared similar features in flow direction,length and probably in discharge.Competition causes survival of the fittest,surpassing of the latter,and different results from one cause,making complicated evolution courses of landform.Big river is not necessarily old one,and vice versa.