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凤凰关地区出露的大别杂岩的混合岩中,至少有30种构造和侵入活动事件,使其构造面貌显得特别复杂。褶皱形式从等斜的片内褶皱、与韧性剪切带紧密伴生的构造到脆性剪切带、尖棱褶皱、开阔褶皱和平缓的弯曲,且大多褶皱都伴有矿物生长以及平行或近平行其轴面或一个翼的淡色脉体的贯入。有些褶皱发育很好的平行枢纽的粗线理,有些褶皱伴生劈理构造。很多长英质新成脉体是谐和的或大体上谐和的,而在韧性剪切带内的淡色脉体则与某些褶皱的轴面平行。根据构造叠加基本原理,可以利用构造间的相互关系来确定变形序列。文中依次描述了各种构造要素,阐述了用于揭示前寒武纪结晶杂岩地质历史的基本野外方法。此外,推测大别杂岩内相继形成的构造是所研究的该部份地壳在一个右行剪切带内遭受连续剪切应变形成的,这个剪切带似乎代表了一个与地体或板块边界平行的带。
There are at least 30 tectonic and intrusive events in the mixed rocks of the Dabie complex exposed in the Fenghuangguan area, making the structure of the complex rock look particularly complicated. Pleat forms from isoscaped intrastrip folds, structures closely associated with ductile shear bands to brittle shear bands, sharp-edged folds, open folds and gentle bends, and most folds are associated with mineral growth and their parallel or nearly parallel Axial or a wing of the light color pulse penetration. Some fold well developed parallel hub of the thick lineage, some folds associated cleavage structure. Many of the new quartz bodies are either harmonic or generally harmonic, while the pale color veins within the ductile shear band are parallel to the axis of some folds. According to the principle of superposition of structures, the deformation sequence can be determined by using the interrelationship between structures. In this paper, various structural elements are described in turn, and the basic field methods for revealing the geological history of Precambrian crystalline complexes are described. In addition, it is speculated that the successively formed structure in the Dabie complex is formed by the continuous shear strain of the part of the crust studied in a right-hand shear band. This shear band appears to represent a plane parallel to the boundary of the earth or plate The band