倾子资料特征分析研究

Research on the character of tipper data

应用大地电磁测深法二维正演程序,对不同情况下存在横向电性分界面的模型进行了正演模拟计算,得到了磁场的垂直分量,并计算了倾子的实部、虚部、振幅和相位资料,然后分别对不同情况下理论模型所形成的异常特征和其规律进行了分析研究.研究表明,倾子资料对地下介质中存在的横向电性分界面反映明显,但其不同分量对横向电性分界面的反映特征和反映能力各不相同.通过对理论模型中倾子资料特征规律的分析和总结,为大地电磁法中实测倾子资料的定性分析解释提供了理论依据和指导.

Applying forward procedure of two-dimensional magnetotelluric sounding method for forward simulation under different situations of the model existed horizontal electrical interface,obtained the vertical component of the magnetic field,and then calculated the real part,the imaginary part,the amplitude part and the phase part of tipper.then,the anomalies and rules of each models under different situations were analyzed.The results show that the tipper of the underground horizontal electrical interface has obvious response,but the characteristics and alilities of different parts are varies.the theoretical basis and guidance of qualitative analysis and interpretation of measured tipper of magnetotelluric method is provided by analysis and summary the feature of the tipper of theoretical model.