Study on the Shengli Ⅰ Channel Bar of Yellow River Delta
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摘要: 黄河三角洲发育了大量心滩，胜利Ⅰ号心滩是典型的代表。胜利Ⅰ号心滩位于黄河胜利大桥北侧，长1200余ｍ，最宽处120ｍ左右，呈纺锤形，中间高，两端和两侧低，纵、横向上均呈透镜状。中部和前端被多条水道切割成数段。通过研究，获得了如下认识：①胜利心滩具有两种截然不同的沉积单元：一种是一般的心滩，另一种是沙泥（砾）丘和水洼、水道等组成的沉积单元；②心滩进一步可以分为（一般的）心滩、水洼、水道和风成沉积单元，不同的沉积单元具有不同的特点；③胜利Ⅰ号心滩上爬升层理非常发育；④以细碎屑沉积为主，细砂、粉砂是主体。Abstract: Channel bars are of ten observed in the Yellow River Delta and the Sheng LiⅠChannel Bar, which islocated to the morth of the Sheng Li Bridge, is a typical one among them. It is 1 200 meters long and may get 120 meters wide at its broadest part. The spindle-shaped Sheng Li Ⅰ Channel Bar is observed lenticular from its longitudinal or lateral side and cutted by water courses into several parts. The central part is higher than it sends and sides. After a more detailed study, several conclusions, are described as follows: ① there are two quite different kinds of sedimentary units in the channel bar. One of them is that described before, and the other one may consists of sand of muddy gravel dunes nad small water ditches;② channel bar is not the smallest unit in sedimentary facices division. It may be divided into the ordinary channel bar, watercourse, water ditch and eolian deposit facies in the Yellow River Delta, and every fa-cies has its o wn characteristics; ③ climbing beddings are widely developed in the channel bar; ④ sediments in the channel bar are mainly fine-grained sand of silt.
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Key words:
- channel bar /
- sedimentary facles /
- delta /
- the Yellow River
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[1] .成国栋主编. 黄河三角洲现代沉积作用及模式. 北京: 地质出版社, 1991. 17～20 [2] .高善明, 李元芳, 安凤桐等. 黄河三角洲形成和沉积环境. 北京: 科学出版社 , 1989. 13 [3] .姜在兴, 王留奇, 马在平等. 黄河三角洲现代沉积研究. 山东: 石油大学出版社, 1995. 50 -
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