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在已知的超高压变质地体中， 大别山是碰撞后花岗岩类侵入作用最为强烈的唯一地区。这里， 中生代的钾玄岩系列和高钾钙碱性系列的侵入岩， 可以依其年龄和组成特征划分为３ 组。第 Ｉ组， 主要由晚三叠世 （约２１０ Ｍａ） 二长闪长岩辉长岩体组成， 它可能是在板片断离过程中富集的大陆岩石圈地幔部分熔融的产物 （板片断离型）； 第 Ｉ Ｉ组， 由中侏罗世－ 早白垩世 （１６０～１２０ Ｍａ） 的角闪石英二长岩、黑云母二长花岗岩和正长花岗岩组成， 主要是由幔源岩浆的分离结晶与地壳混染共同作用的产物 （岩浆底垫型）； 第 Ｉ Ｉ Ｉ组， 以白垩纪 （１２５～９５ Ｍａ） 的花岗岩和花岗斑岩为代表， 是在热穹窿作用过程中大别杂岩深熔作用和高度演化的产物 （穹窿型）。大别山超高压变质岩通过地幔的剥露可能与晚三叠世—早侏罗世的板片断离有关， 而大规模的岩浆侵位与超高压变质岩的快速剥露相伴出现说明， 岩浆底垫和岩浆漂浮作用可能在大别山中侏罗世—早白垩世的快速剥露中发挥了重要作用。
Among the known UHP metamorphic terranes, the Dabie Mountains are the only areas where the granite invaded the area after the collision most strongly. Here, the Mesozoic potash series and the high-K calc-alkaline series intrusive rocks can be divided into three groups according to their ages and compositional characteristics. Group I, consisting mainly of the late Triassic (about 210 Ma) monzodior-gabbro body, may be the product of partial melting of the continental lithosphere mantle enriched during the plate delamination (plate segments Type I, composed of hornblende feldspar, biotite monzogranite and granite of Middle Jurassic-Early Cretaceous (160-120 Ma), mainly composed of mantle-derived magma Crystallization and crustal mixed action of the product (magmatism type); the first I1 I, the Cretaceous (125 ~ 95 Ma) of the granite and granite porphyry represented by the dome in the process of the role of Dabie Complex of deep-melting and highly evolved complex (dome type). The exhumation of the UHP metamorphic rocks in the Dabie Mountains through the mantle may be related to the detachment of the Late Triassic-Early Jurassic plate, while the large-scale magmatic emplacement is accompanied by rapid exhumation of the UHP metamorphic rocks. And magma flooding may play an important role in the rapid exhumation of the Middle Jurassic-Early Cretaceous in the Dabie Mountains.