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在大别山南部和扬子地块前陆实施的深地震反射剖面(140 km)揭示出大别山造山带前陆地壳的精细结构。总体北倾的地壳内部结构与向北缓倾的叠瓦状莫霍面反射揭示出扬子陆块向北俯冲的行迹。莫霍面向北插入大别山造山带下与南大别山地壳内南倾反射震相叠置,构成交叉反射图像,刻画出扬子前陆与大别山造山带的碰撞构造面貌。
Deep seismic reflection profiles (140 km) carried out in the foreland of the southern Dabie Mountains and the Yangtze block reveal the fine structure of the foreland crust of the Dabie orogen. The general northward crustal crustal structure and the mutilated Moho reflections to the north reveal the north subduction of the Yangtze block. The Moho is inserted northwards into the Dabie orogenic belt and overlaps with the southern Dabie mountains in the south-dipping seismic reflection, forming a cross-reflection image depicting the collision structure between the Yangtze foreland and the Dabie orogen.