Flood Sediments in Floodplain and Flood Events of Jingyang Reach in Jing River
详细信息
- 责任者：Gu Jing (State Key Laboratory of Loess and Quaternary Geology ; Institute of Earth Environment ; Chinese Academy of Sciences ; Xi’an 710075 ; China) ; Zhou Jie
- 刊名：Acta Sedimentologica Sinica
- 出版年：2011
- 卷期：29(3)
- 关键词：河漫滩 ; valley flat ; 洪水 ; floods ; 甘肃 ; Gansu Province
- 页码：p.561-571
- 图表：4 illus., 2 tables, 29 refs.
- 分类号：1400
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
According to the field observation,the grain size,the element and compound analysis of 128 samples, and historical flood records of this area, the authors studied flood variation indicated by sediments in floodplain of the Jing River in Jingyang reach during deposit of floodplain. The result shows that the sediments which developed well on floodplain of the Jing River in Jingyang reach are mainly of coarse silt and very fine sand. Each component changes obviously in the entire profile, which can clearly reflect the variations of flood and precipitation with high resolving power. The profile is divided into 18 sediment stages, indicating 18 floods of different scales and 18 years with much precipitation.