The structure of predicting area is a broad, gentle syncline, together with Hushan syncline made up a comb fold.
预测区内构造为一宽缓向斜，与弧山向斜共同构成隔档式（梳状）褶皱。
Trap door structure, pop up structure, and assemblage of listric thrust, dragged anticline and dragged syncline are most favorable to the accumulation of oil and gas.
滚板构造、冲起构造和铲形逆断层与牵引背斜、牵引向斜组合对油气的聚集最为有利。
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