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根据近年来在南黄海进行地质、地球物理调查的资料,人们习惯于将该区划分为千里岩隆起、北部拗陷、中部隆起,南部拗陷和勿南沙隆起等五个一级构造单元.且通常将北部拗陷、中部隆起、南部拗陷分别与苏北的盐阜拗陷,建明隆起、东台拗陷等构造单元划为一个盆地,即南黄海-苏北中、新生代盆地.关于盆地的定义,据朱夏同志的意见:是在某一相当长的地质时期和某一具体地理区域内、在一种构造成因的不规则面上、在比较均一的构造环境中,由一个或几个来源沉积物所形成的实体.据此概念,以及近年来物探和地质方面的资料,作者认为南黄海区是以中部隆起为界,分别在不同基础上形成的南北两个分割性实体,即北部拗陷是一个盆地;南部拗陷和苏北地区是另一个盆地,暂命名为南黄海北部盆地和苏北南黄海南部盆地(以下简称北部盆地和南部盆地)(图1).现就盆地的基底、基础构造层、第三纪沉积以及中部隆起的特征等,对该二盆地的差异性进行研讨.
According to the recent geological and geophysical survey data in the southern Yellow Sea, people are accustomed to divide this area into five first-order tectonic units, such as the Cenuyan uplift, the northern depression, the central uplift, the southern depression and the No-Nansha uplift. The northern depression, the central uplift, the southern depression and the Yanfu depression in the north of Jiangsu Province, the Jianming uplift and the Dongtai depression are generally divided into one basin, that is, the Southern Yellow Sea-Northern Jiangsu Cenozoic basin. , According to Comrade Zhu Xia’s opinion, is that in a relatively long period of geology and in a specific geographical area, on an irregular plane of structural origin, in a relatively homogeneous tectonic setting, one or more Based on this concept and the data of geophysical and geologic aspects in recent years, the author thinks that the South Yellow Sea Region is a north-south two-parted entity formed on a different basis by the central uplift, The depression is a basin; the southern depression and the northern Jiangsu area are another basin, tentatively named as the northern part of the southern Yellow Sea Basin and the southern part of the northern part of the northern part of the northern part of the northern Jiangsu Basin (Figure 1). Base, the base structure layer, and the middle Tertiary sedimentary basins like raised features, the differences to discuss the two basins.