地震-重力联合反演及效果——以天津—北京—赤城地震探测剖面为例  

Joint inversion of seismic and gravity data and its effect: Taking the Tianjin—Beijing—Chicheng seismic profile as an example

作　　者：刘皓[1,2] 方盛明[2] 嘉世旭[2] 

机构地区：[1]中国地震局地球物理研究所,中国北京100081 [2]中国地震局地球物理勘探中心,中国郑州450002

出　　处：《地震学报》2011年第4期443-450,557,共8页Acta Seismologica Sinica

基　　金：国家自然基金重点项目(40827001)资助

摘　　要：充分运用地震与重力场不同方法的优点,以天津—北京—赤城高精度、高分辨率人工地震探测剖面(DSS)为例,采用地震解释模型结果为约束,通过正反演拟合,获得剖面上密度结构,再对剖面两侧地震解释的模型结果重新进行拟合修正.实践表明,用重力-地震相互约束开展联合反演,可以克服单一方法存在的缺陷和不足,使获得的结果更接近研究区的实际情况.This paper makes full use of the merits of different methods in analyzing seismic and gravity fields.Taking the Tianjin——Beijing——Chicheng high-precision and high-resolution deep seismic sounding profile（DSS） as an example and using the model of seismic interpretation as a constraint,the paper conducted forward and inverse data fitting and obtained the density structure of the profile.Then re-fitted and amended the model result of the seismic interpretation of both sides of the profile.Practice has shown that,with joint inversion of seismic and gravity data,the shortcomings and deficiencies of a single method are overcomed,so that the obtained results are closer to the actual situation of the studied area.

关 键 词：人工地震探测 正反演拟合 联合反演 

分 类 号：P313.2[天文地球—固体地球物理学]