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区域变质作用过程中,矿物受到热力与动力作用,相应地发生结晶、重结晶与变形两个方面的变化,产生出多种型式的变质结构。依据变质结构的特点,矿物本身的变化和共生矿物之间的相互关系,可以分析多期变质作用的期次、顺序,也可以鉴别结晶作用与变形作用的先后关系,因此能够通过这种研究来复原变质地体的变质变形历史。本文研究河北省迁西县太平寨地区及附近各地的古老变质地体的变质结构特点,并研讨其地质意义。
In the process of regional metamorphism, the minerals are subjected to the action of heat and force, correspondingly the changes of crystallization, recrystallization and deformation occur, resulting in various types of metamorphic structures. According to the characteristics of the metamorphic structure, the change of the mineral itself and the interrelationship between the commensal minerals, it is possible to analyze the order and sequence of the multi-metamorphism, and to identify the relationship between the crystallization and the deformation. Therefore, through this research Restore metamorphic deformation of the metamorphic history. This paper studies the metamorphic structure of the ancient metamorphic terrane in the Taipingzhai area and its vicinity in Qianxi County, Hebei Province, and studies its geological significance.