河北爪村区滦河沉积与地貌演化

The Sediments and Geomorphic Evolution of the Luanhe River near Zhaocun Village

通过对滦河爪村地区进行详细的实地考察,做出滦河在爪村的两个沉积剖面图和河流阶地图。对剖面进行详细的分析和对比后,发现两个剖面无论在层理构造还是沉积物组成都有很大差别的,两个剖面分别为河漫滩相沉积和河床沉积。结合迁安盆地的总体情况,认为滦河在爪村发育了三级阶地。最早的第三级阶地在晚更新世已经形成。

<Abstrcat>On the basis of field investigations,two sedimentary profiles and river terraces of the Luanhe River in the vicinity of Zhaocun village,Qian'an county of Hebei Province,were discussed.There are a lot of differences between the two profiles in bedding structure and component of sediments.One profile is floodplain deposits,and another is riverbed deposits.The authors take the condition of the whole Qian'an Basin in account and find there are three terraces near Zhaocun Village.The highest terrace was formed in the Late Pleistocene.