大别山地区北西西—东西向古构造边界的研究,是在李春昱先生的热情指导和支持下进行的,通过大量实际资料充分地证明了在晋宁旋回期间,这里曾发生古华夏大洋板块向北的俯冲并消减到古中朝大陆板块之下,在大别山地区形成一条缝合线。在这条构造线上,有发育较好的蛇绿杂岩,成线型分布。它的南侧有蓝闪片岩相、榴辉岩相低温高压变质杂岩带。地球物理资料证明该区为一“阻隔”带。 The research on the North-West-East-West palaeo-tectonic boundary in the Dabieshan area was carried out under the enthusiastic guidance and support of Mr. Li Chunyu. Through a large amount of actual data, it was fully proved that during the Jinning Cyclone, the paleo-Huaxia Ocean plate had been northward Subducting and subducting below the ancient China-North Korea plateau, a suture was formed in the Dabie Mountains. On this tectonic line, there are well-developed ophiolite complexes that are linearly distributed. On the south side of it, there are blue flash lithofacies and eclogite facies low temperature and high pressure metamorphic complex belt. Geophysical data show that the area is a “barrier” zone.