Controlled by the polycycle property of structural evolution and assemblage, Wuxia belt experienced four pool-forming periods, and the oil and gas circulated around Mahu depression.

• 受构造演化的多旋回性及储盖组合的联合控制，乌夏断裂带共有4期油气充注过程，油气沿玛湖凹陷呈环带状分布。