本文提出一种定量解释极化矿体或倾斜层模型引起的SP波场数据的新方法。其理论基础是研究振幅谱。研究表明.振幅谱在零频率处是不连续的,由此可确定倾斜层的倾角。此外,SP振幅谱在随极化体深度变化的特征阻尼频率处为零。SP梯度的最大振幅谱值可用于求取极化体底部埋深,因此,确定的几何 This paper presents a new method to quantitatively interpret the SP wavefield data caused by the model of polarized ore body or inclined layer. The theoretical basis is to study the amplitude spectrum. Studies have shown that the amplitude spectrum is discontinuous at zero frequency, from which the inclination of the inclined layer can be determined. In addition, the SP amplitude spectrum is zero at the characteristic damping frequency that varies with depth of polarization. The maximum amplitude spectrum of the SP gradient can be used to determine the depth of the bottom of the polarizer. Therefore, the exact geometry