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divnce

详细信息

Joint inversion of seismic and gravity data and itseffect：Taking the Tianjin-Beijing-Chichengseismic profile as an example

1）Institute of Geophysics, China Earthquake Administration, Beijing 100081，China2）Geophysical Exploration Center, China Earthquake Administration, Zhengzhou 450002，China

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．
- 人工地震探测　正反演拟合　联合反演
Abstract: 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.

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