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南黄海盆地位于长江口以北及山东半岛之南的黄海大陆架上(见图1).面积约30万平方公里.自1968年以来地质部海洋地质调查局在南黄海广泛地进行了综合地球物理普查工作,在部分构造上打了一批石油普查井.初步查明南黄海是一个大型的沉积盆地,并分为南部和北部两个坳陷,是陆地上苏北盆地的延伸部分.盆地内有一套7000多米的白垩-第三纪沉积,由于岩性和地质时代与苏北盆地相近,因此,海区的部分地层沿用了苏北的名称,如阜宁群、戴南组和三垛组,为了确定该区的地层时代及其地层划分与对比,对岩屑、岩芯进行了微体古生物研究.确定了钻遇地层的时代及介形类组合,并与中国东部地区新生代地层进行了对比.南黄海盆地新生代地层中介形类属种比较少,
The South Yellow Sea Basin is located on the Yellow Sea shelf north of the Changjiang River Estuary and south of Shandong Peninsula (see Figure 1) with an area of about 300,000 square kilometers. Since 1968, the Bureau of Geology Marine Geological Survey conducted extensive geophysical In the census, a number of oil census wells were partially struck, and it was initially identified that the southern Yellow Sea is a large sedimentary basin and is divided into two depressions in the south and the north, and is an extension of the Northern Jiangsu Basin on the land. There is a set of more than 7,000 meters of chalk-Tertiary sediments. Because of lithology and geologic age similar to the Northern Jiangsu Basin, some strata in the sea follow the names of Northern Jiangsu, such as Funing Group, Dainan Group and Nandu Formation, In order to determine the stratigraphic age and its stratigraphic division and contrast in this area, microfacies paleontology research has been carried out on cuttings and cores, and the epoch and association type of the stratigraphic metamorphism have been determined and compared with the Cenozoic strata in eastern China In contrast, the Cenozoic strata in South Yellow Sea Basin are relatively few species,