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本文通过对舟山地区高波能、中等潮差滨岸带的研究指出:(1)滩脊(坝)沟槽体系是卷跃浪产生的涡流作用下形成的;(2)滩脊(坝)沟糟体系形成后,主要在上冲流加积作用下向岸迁移;(3)迁移系根据它所处的滨岸位置、水动力特征、微地貌形态和沉积构造划分四个阶段,即初始形成阶段;板状前积纹层发育阶段;冲洗沙坝发育阶段和滩肩形成阶段。 本文还讨论了滩脊(坝)沟槽体系垂向层序特征和保存情况,这将为寻找类似的古代沉积物提供某些依据。
Based on the study of high wave energy and moderately tidal current in the Zhoushan area, this paper points out that: (1) the trough system of the beach ridges (dams) is formed by the vortex generated by the rolling waves; and (2) (3) The migration system is divided into four stages according to the location of its shore, hydrodynamic characteristics, microtopography and sedimentary structure, namely, the initial formation Stage; plate-shaped layer before the development of stratum corneum; flushing sand dam development stage and beach shoulder formation phase. This paper also discusses the vertical sequence and preservation of the trough system in the Tanji (dam), which will provide some evidence for finding similar ancient sediments.