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庐山变质核杂岩具有典型的3层结构。拆离带是核部隆升过程中盖层滑脱、剪切变形而形成的,该拆离面是在北东向褶皱基础上叠加杂岩核部隆升作用而形成的波状起伏面。拆离带在核部以西发育倾向西向、南西向、北西向的面理和矿物生长线理,显示向西滑脱形成剪切拉伸变形的特征。拆离带岩石以糜棱岩和构造片岩为主,辅以碎裂岩和构造角砾岩。岩石变形特征表明其既具有韧性变形,也具有脆一韧性变形及脆性变形的特点。核部隆升引起的拆离变形作用,不仅形成了拆离带,还影响了拆离带以上盖层岩石,形成一个由拆离带向上由强变弱的变形域。这种规律性递变现象使庐山变质核杂岩具有垂向变形分层、水平变形分带的特点。拆离带中角闪石—斜长石矿物对计算得出的变质温度为653℃~694℃,压力为0.56~0.67GPa。
Lushan metamorphic core complex has a typical three-layer structure. The detachment zone is formed by the detachment and shear deformation of the caprock during the uplifting of the core. The detachment zone is a wavy undulating surface formed by the superimposition of the uplifting of the core of the complex rock on the basis of the north-eastern fold. The detachment belts developed in the west of the core west, southwest and northwest of the face and mineral growth lineage, showing the formation of the west slipped shear tensile deformation characteristics. Detached rocks are dominated by mylonites and tectonic schist, supplemented by cataclasites and structural breccias. Deformation characteristics of rock indicate that it has not only ductile deformation but also brittle-ductile deformation and brittle deformation. The detachment and deformation caused by the uplifting of the core not only formed the detachment zone, but also affected the detachment zone above the cap rock, forming a deformation zone where the detachment zone is upwards and weakens. This phenomenon of regularity and degeneration of the Lushan metamorphic core complex has the characteristics of vertical deformation stratification and horizontal deformation and zoning. Detached with hornblende - plagioclase minerals calculated metamorphic temperature of 653 ℃ ~ 694 ℃, pressure of 0.56 ~ 0.67GPa.