The tectonic style inside the basin is characterized by occurrence of anticlines from the margins to center of the basin, with two limbs mostly starting from reverse faults, developing a tectonic pattern of two faults sandwiching an uplift.

• 盆地内部的构造样式以自盆地边缘至中心以此形成背斜构造为显著特徵，背斜两翼多发育逆断层，构成“两断夹一隆”的构造格局。