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以大量钻孔资料总结出辽东湾中、北部全新世 8.5kaB .P .以来沉积了第一海相层 ,与下伏盛冰期的陆相层之间构成不整合界面 (R1 )。界面以下的B层中发育大量埋藏古河道 ,古河道NE向展布 ,宽 2 0～ 80 0m ,埋深 2～ 1 3m ,按其埋深位置分成 4种古河道 ,按其充填方式又可分成 5种古河道。它们在认识地层古环境、海上施工、海上建筑和防灾减灾上有重要意义。
Based on a large amount of borehole data, the first marine layer was deposited since 8.5 ka BP in the middle and northern part of Liaodong Bay, and formed an unconformity interface (R1) with the continental layer under the glaciation during the Holocene. B layer in the interface below the development of a large number of buried ancient river course, the ancient river NE distribution, width 20 ~ 80 0m, depth 2 ~ 13m, according to their buried depth into four kinds of ancient river, according to its filling method can Divided into five kinds of ancient river. They are of great significance in understanding the paleoenvironment of the stratigraphy, offshore construction, offshore construction and disaster prevention and mitigation.