【摘要】 利用卫星重力异常数据 ,以盆地内钻孔和部分地震勘探解释结果为约束 ,采用多约束密度界面反演方法 ,计算了南黄海地区的中生界底界面深度 ;结合地震解释的新生界底界面深度 ,计算了区内中生界的残余厚度。南黄海地区中生界的分布规律是东厚西薄 ,北厚南薄。从分布区域来看 ,南黄海盆地北部坳陷和中部隆起的东部是中生界残余厚度分布范围最广的地区 ,而南黄海盆地南部坳陷和勿南沙隆起区中生界基本缺失。南黄海盆地北部坳陷和中部隆起的东部中生界残余厚度最大达 80 0 0m。区内中生界展布方向变化较大 ,以北西西向为主 ,兼有北东东向、北东向、北北东向和近南北向。更多还原

【Abstract】 The Mesozoic base depth in the southern Yellow Sea has been calculated by using satellite data of gravity anomaly and an inversion method of density interfaces.During the calculation,some drilling data and seismic interpretation are used as constraints.In addition,the Mesozoic relict thickness is calculated in combination with considering the Cenozoic base depth derived from seismic interpretation.The Mesozoic distribution in this region may be characterized by thickening towards east and north and thinning towards west and south.The Mesozoic relict thickness is best preserved in North Depression and the eastern Central Uplift,and largely in absence in South Depression and Wunansha Uplift.In North Depression and the eastern Central Uplift,the thickest Mesozoic can be up to 8、000 m.The Mesozoic trend changes greatly,with the WNW_trending predominant and the ENE、,NE、,NNE、 and nearly S、N、trending also seen.更多还原