中文摘要：

简要介绍了基于位场分离的视密度反演法的原理,并利用该技术对东海的重力异常进行处理并进行了区域地质解释应用.视密度反演的方法在对研究区内的区域性大断裂如郯庐断裂、江绍断裂以及东引—海礁隐伏断裂有很好的分辨能力.不同深度的视密度切片信息能够帮助我们了解这些大断裂的发育深度和规模.在沟弧盆等地形以及构造复杂地区利用视密度反演法研究深部地质构造,可以揭示不同深度上补偿质量分布情况,从而推测莫霍面的起伏情况.

英文摘要：

The principal of apparent density inversion method based on potential field separation is introduced. This apparent density inversion method is applied to process the gravity anomaly data in the East China Sea and its adjacent area, and the density anomaly results are presented. The interpretation shows that the apparent density inversion method has a good ability in distinguishing the regional faults in the research area such as Tanlu Fault, Jiangshao Fault and the concealed Dongyin-Haijiao Fault. The apparent density slice maps in different depths help us to understand the dimension and developing depth of these faults. In the Trench-Arc-Bain area where the topography and tectonics are very complicated, the apparent density inversion method can be used to do deep geological structure study. It can indicate the distribution of compensative mass and the undulation of Moho discontinuity.