Sand wave movement is an important form of sediment movement for alluvial rivers and has a great effect on stream resistance.
沙波运动是冲积河流泥沙运动的一种重要形式。沙波的消长对河道水流的阻力损失有很大的影响。
The sedimentary facies can be classified into alluvial fan, fan delta, lake, stream and swamp.
沉积相可分冲积扇相、扇三角洲相、湖泊相、河流相和沼泽相。
The major sedimentary facies were alluvial fan facies and fan delta facies in the west, and stream delta and braided delta in the east, with a lacustrine facies in the centre of the fault basin.
西岸陡坡带以冲积扇和扇三角洲沉积为主，东岸缓坡带以河流三角洲、辫状三角洲占优势，盆地中心为湖相沉积。
Alluvial fan facies, braided stream delta facies and flooded plain facies are developed in Kongdian Formation of Bamianhe area.
八面河地区孔店组存在冲积扇、辫状河三角洲和洪泛平原相。
Alluvial fan facies, braided stream delta facies and flooded plain facies are developed in Kongdian Formation of Bamianhe area.
八面河地区孔店组存在冲积扇、辫状河三角洲和洪泛平原相。
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