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北淮阳构造带由一系列向北逆冲推覆的构造岩片组成,是建立大别山造山带和合肥盆地构造关系的纽带,先后经过燕山早期和燕山晚期两次向北逆冲推覆作用。燕山早期的构造以后缘滑脱、前缘推覆为特征;燕山晚期逆冲推覆构造以区域挤压、向北逆冲为特征。合肥盆地经过坳陷、断陷两大阶段的沉陷。合肥盆地的坳陷形成强烈受到扬子陆块基底持续俯冲和大别山隆起的控制,晚白垩世后的断陷明显受到大别山差异隆起的影响,并表现出良好的构造耦合关系。合肥盆地东南的舒城坳陷是进一步寻找油气的构造有利地区。
The Northern Huaiyang tectonic belt is composed of a series of tectonic slices thrusting northward and thrusting. It is a tie that establishes the tectonic relationship between the Dabieshan orogenic belt and the Hefei Basin. It has been subjected to two thrust northward thrusts successively in the early Yanshan and later in the Yanshan. Early Yanshanian tectonic setting is characterized by trailing slip and frontal nappe; Late Yanshanian thrust nappe structure is characterized by regional extrusion and northward thrusting. Hefei basin after the depression, fault depression two stages of subsidence. The depression formation in the Hefei Basin was strongly controlled by the continuous subduction of the Yangtze block and uplift of the Dabie Mountains. The faulted depression after the Late Cretaceous was obviously affected by the uplift of the Dabie Mountains and showed a good structural coupling. The Shucheng depression in the southeast of the Hefei Basin is a structurally favorable area for further oil and gas exploration.