The impedance tensor at some sites is influenced by strong local telluric distortion.Analysis on all data along the profile suggests that regional anomaly is two-dimensionality in general.

• 在某些测点局部电流畸变的影响较严重，用张量分解技术对资料分析后表明，沿剖面的区域异常总体上具二维性质，分解技术处理后的视电阻率和相位资料与地质构造有较好的对应性。