The results show that there are two types of extensional faults in the Yan an Formation of the well field,they are minitype high angle downthrow faults and interlayer gliding faults.

• 通过大量矿井地质构造观测和地表地质调研,对布尔台井田中侏罗世延安组内伸展构造发育和分布规律、构造样式、伸展断层组合形式进行了详细解析。