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大别山变质带分隔了华北和扬子两个陆块,它们可以分为3个主要的岩石构造单元、分别相当于安第斯岩浆弧根部变质杂岩,碰撞带根部变质杂岩和扬子陆块边缘的变质沉积杂岩,3个岩石构造单元在空间分布上是有规律的,即在大别山区是由北向南逐个排列,在被郊庐断裂破坏的较为严重的苏鲁地区,也大致是从西北到东南依次排列,此外,中生代碰撞型花岗岩和碱性岩墙群在空间上有规律地分布,出露于北大别和南大别变质杂岩中,尤其在北大别更发育,含超高压变质岩的南大别变质杂岩是陆陆碰撞带的根部带,它们代表了两个大陆的缝合线.超高压变质岩石或岩片构造侵位于非高压变质的围岩片麻岩中,是俯冲到深部的岩石在碰撞之后抬升和就位于中、上地壳中的,现在出露于地表的超高压变质岩及其有关的岩石至少经历了两个主要阶段的抬升和折返过程.
The Dabie Mountain metamorphic belt separates the two continental blocks of North China and Yangtze. They can be divided into three major rock tectonic units, corresponding to metamorphic complexes of the Andean magmatic arc root, metamorphic complexes of the collisional belt and metamorphic sediments along the margin of the Yangtze block Complex rocks and three rock tectonic units are regular in spatial distribution, that is, in the Dabie Mountains, they are arranged one by one from north to south. In the more serious Sulu area damaged by suburban-Lu faults, they are also roughly from northwest to southeast In addition, the Mesozoic collisional granites and alkaline dyke swarms are spatially regularly distributed and exposed in the North Dabie and South Dabie metamorphic complexes, especially in the more developed in the Dabie, including the South Dabie Metamorphic rocks are the root belts of the continental-continental collision zone and they represent the suture of the two continents.The UHP metamorphic rocks or lithofacies are intruded into the non-high-pressured metamorphic gneiss, which is the result of subduction to deep rock collision The UHP metamorphic rocks now uplifted and located in the middle and upper crust, now exposed to the surface, and their associated rocks have at least undergone two stages of uplift and reentry.