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北疆地区(除盆地外)断裂带的显微构造和岩组分析的资料表明:无可置疑的存在着至少经两次构造变作用的构造岩。先期为形成较深部位的塑性剪切带机制的糜棱岩系列;后期为形成较浅部位的、迭加于先期之上的、脆性变形带的碎裂岩系。先期普遍显示水平剪切为主的特征,后期碎裂变形的强度则相对较弱。研究成果佐证了该区断裂系统具有多期、复杂的构造变形历史,其中水平剪切运动具有广泛的意义,并尚有沿垂向运动的显示。所获微观构造的信息是对宏观地质构造特征的重要补充,它们对认识北疆地区断裂系统的运动史,可能具有普遍意义。
The data from the microscopic structure and the analysis of the formation in the northern Xinjiang (excluding the basin) fault zone show that there is no doubt that there are at least two tectonic rocks that make structural alteration. The earlier stage was the mylonite series that formed the plastic shear zone in the deeper part, the later was the fissured part of the superficial and brittle deformation zone superimposed on the earlier stage. Early horizontal shear-based features generally show the latter part of the intensity of fracturing is relatively weak. The research results support the multi-period and complex tectonic deformation history of the fault system in this area. The horizontal shear movement has a wide range of meanings, and there is a vertical movement display. The microstructured information obtained is an important complement to the macroscopic geotectonic features that may have universal significance in understanding the movement history of fracture systems in northern Xinjiang.