冀北坳陷大地电磁测深研究

根据冀北坳陷化皮-翟杖子剖面大地电磁测深结果。划分了具有不同电性特征的地层沿剖面的变化格局，确定了基底起伏形态，推断了断层分布位置，沿剖面分布有3个隐伏局部构造，分别为瀑河构造，塔子山构造和翟杖子构造，其中瀑河构造和翟杖子构造具有油气过错景，党坝-小寺沟断裂和双洞南断为构造控制断裂，将剖面分为3个断陷区，北店-抬头山断裂为一条较大的西倾逆断裂，常州沟组逆冲超覆在雾迷山组之上，断距近4000m。

Magnetotelluric sounding study of the northern Hebei depression

According to the results of magnetotelluric sounding of the Huap i-Zhaizhangzi profile in north-ern Hebei,the variation patterns of the stra ta with different electric characters have been distinguished a-long the profi le,the basement relief form determined and the location of fault distribution inferred.Along the profile there are three local buried structures,namely,th e Puhe structure,Tazishan structure and Zhaizhangzi structure,of which the Pu he and Zhaizhangzi structures have petroleum prospects.The Tan-ba-Xiaoxigou f ault and Shuangdong South fault are structurally controlling faults,which divid e the profile into three down-faulted areas;the Beidian-Taitoushan fault is a large west-dipping reverse fault;the Changzhougou Formation is thrust over th e Wumishan Formation,with a displacement of nearly4000m.