Firstly the buried depth and distribution of the Pre-Silurian interface were in- versed from magnetotelluric data with constraint conditions.

• 从提高纵向分辨率的处理和反演技术的应用入手．结合约束条件，利用大地电磁测深数据反演，揭示前志留面等界面的埋深和分布；