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通过实地调查和室内分析表明:(1)弶港潮滩是在两股强潮流以弶港为中心辐聚辐散的控制作用下形成的,由于潮流对海底物质的冲刷、搬运和堆积,使潮沟水系发育;(2)湖沟在滩面上纵横交错,规模较大,横向迁移摆动迅速,对潮滩沉积物起着重大的改造作用;(3)本文总结了潮沟沉积物特征,提出判别这类沉积物的标志,并概括了潮沟发育的阶段性,为探讨古代类似环境,提供依据。
Through field investigation and indoor analysis, it is shown that: (1) The tidal flat at Huanggang is formed under the control of two converging divergences caused by the strong tidal current at the port of Chuang. Due to the tidal current’s erosion, handling and accumulation of the seafloor material, (2) The ditches are crisscrossing on the beach surface in a large scale and swiftly moving transversely, which play a significant role in the alteration of the tidal flat sediments. (3) This paper summarizes the characteristics of tidal flat sediments, Put forward the distinguishing mark of this kind of sediment, summed up the stage of development of tidal ditch, and provided the basis for discussing ancient similar environment.