【摘 要】
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Point bars are well developed on the Yellow River delta, among which the Shengli I point bar is the mosttypical. The point bar, being about 4 km in length and s
【机 构】
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Earth Resource and Information College,Earth Science Department,Center for Environment Science
论文部分内容阅读
Point bars are well developed on the Yellow River delta, among which the Shengli I point bar is the mosttypical. The point bar, being about 4 km in length and several tens to more than 100 meters in width, is located on the southside of the Shengli Bridge in Kenli County, Dongying, Shandong. It is a typical fine-grained point bar with silt, which ispredominant, some clay and minor plant debris and clay boulders. The Shengli I point bar has complicated 3-D structures.Firstly, in a plane view, it comprises mainly eight sedimentary units, bar edge, bar ridge, bar platform, bar plain, bar channel,bar gully, bar pond and bar bay, developing side by side and superimposed one by one in a complex way. Secondly, itsvertical structures are very complex due to the partial superimposition of the 8 sedimentary units. Besides hydatogenesis, veryintensive wind erosion, eolian, ice and meltwater actions are also visible on the Shengli I point bar. The complex form is madeeven more complicated because of the above co-actions.
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