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郯庐断裂带桐城－庐江段构造特征明显，由东界断层和西界断层及伴生层组合而成。它们是同一应力作用下的产物，表现出左行走滑的运动学特征。断层带中发育大量超糜棱岩、碳酸盐岩糜棱岩和硅化大理岩，反映了较深的生成环境。活动时代为１１０－１３０Ｍａ。沿郯庐断裂带后期显示出伸展特征，发育了一系列正断层，形成复式地堑构造，沉积了大量Ｋ２－Ｅ的红色陆相沉积物。规模巨大的逆冲断层和推履构造，强烈破坏了红色盆地，表现出由ＳＥ－ＮＷ逆冲的运动学性质。断层带中主要为脆性构造岩。该区郯庐断裂带的深化过程是：晚侏罗世－早白垩世为左行平移；晚白垩世－早第三世为伸展拉张；新第三纪以来为逆冲挤压。
The tectonic features of the Tongcheng-Lujiang section of the Tanlu fault zone are obvious and consist of a combination of faults in the east boundary and faults and associated layers in the west boundary. They are the product of the same stress and show kinematic characteristics of left-lateral slip. The development of a large number of ultra-mylonite, carbonate mylonite and silicified marble in the fault zone, reflecting the deeper formation environment. Activity time is 110-130Ma. Late extension of the Tan-Lu fault belt shows a series of normal faults that formed a double-graben structure and deposited a large amount of K2-E red continental sediments. The massive thrusts and thrust structures strongly undermine the red basin and show the kinematic properties of SE-NW thrusting. The fault zone is mainly brittle tectonic rocks. The deepening process of the Tan-Lu fault zone in this area is that the Late Jurassic-Early Cretaceous was shifted to the left, that from Late Cretaceous to Early Tertiary was extended and stretched, and thrust-crushed since the Neogene.