海州湾位于南黄海西部,地处我国自然地理南北分界线——秦岭——淮河一线的东端,属南北过渡带(如图1)。本区第四纪地质及海岸地貌的研究,对于南黄海以及中国东部沿海第四纪海侵的历史,对于中国海的发育 Haizhou Bay is located in the western part of the South Yellow Sea and is located at the eastern and southern boundary of Qinling - Huaihe River, which belongs to the north-south transitional zone (Figure 1). Quaternary geology and coastal landform study of the region, the South Yellow Sea and the history of Quaternary transgression along the eastern coast of China, the development of the China Sea