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苏北陆区古潮成沙体和海域辐射沙洲共同构成了统一的苏北南黄海潮成沙洲体系。在众多钻孔资料和地质雷达探测基础上，重点对苏北陆区古潮成沙体进行了沉积磁组构和重矿物分析，证明古潮成沙体属海退层序，是在南、北两侧三角洲发育过程中，以长江、黄河泥沙为主的沉积物质通过沿岸搬运进入早已存在的辐聚辐散潮流场后经潮流沉积和塑造形成的。早期沉积物质主要来自长江，晚期则主要为长江和黄河的联合供沙。认为苏北古潮成沙体是全新世中后期海陆相互作用的产物。
The paleosoclimate sand bodies in the Subei region of North Jiangsu and the radiant sandbanks in the sea area form a unified system of tidal sand into the South Yellow Sea in northern Jiangsu. On the basis of numerous borehole data and geologic radar detection, the author focused on the sedimentary magnetic fabric and heavy mineral analysis of the paleosoclastic sand bodies in the Subei region of North Jiangsu Province, and proved that the paleo-tide sand bodies belong to the descending sequence, During the development of the delta on both sides of the north, sediments dominated by the Yangtze River and the Yellow River sediment are transported by sediments along the coast into the existing convergent divergent tidal current field and then formed by tidal current sedimentation and shaping. Early deposition of material mainly from the Yangtze River, the late is mainly for the Yangtze River and the Yellow River sand supply. It is considered that the sand body of the Northern Jiangsu ancient tide is the product of the sea-land interaction in the mid and late Holocene.