Owing to the surface conditions and the depth of investigation, TEM and GPR are not practical for the case of complicated surface in Ordos basin.

• 瞬变电磁方法由于受地表影响变化较大和地质雷达方法由于受探测深度的局限，不适合在鄂尔多斯盆地复杂的地表条件下采用。