本文利用地震资料结合钻井资料分析,发现万安盆地三套构造层(基底构造层、主体构造层、表层构造层)内发育了各具特色的构造样式,认为这些构造样式是地壳伸展和走滑联合作用的结果。同时,也反映该盆地相应经历了伸展作用、走滑运动和区域沉降三个演化阶段。因此,万安盆地应属地壳伸展张裂形成的、且受到走滑作用改造的、具扭性的断拗复合型盆地。 Based on the seismic data and drilling data analysis, we find that the structural styles of three sets of structural strata (basement structural layer, main structural layer and surface structural strata) in Wanan Basin are characterized by different structural styles, which are considered as crustal extension and strike-slip The result of the synergy. At the same time, it also reflects that the basin experienced three stages of evolution, such as extensional movement, strike slip and regional subsidence. Therefore, the Wan’an Basin should belong to the fractured crust complex formed by crustal extension and fracture, which is altered by the strike-slip effect.