There is distinct rising and falling in loess high country in Shanxi province,developed gullies and thick loess overburden make all sorts of disturbing waves coexisted resulted in difficult shot.

• 山西黄土山区地形起伏较大,冲沟发育,黄土覆盖层厚,各种干扰波并存,激发困难,在进行三维地震勘探前,根据踏勘情况,选取不同岩性地段有代表性的点做试验工作,以确定野外施工参数。