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本文论述了熊耳山南坡的马超营断裂带及其北侧熊耳群火山岩的区域变质作用、动力变质作用和热液变质作用的特点。火山岩的变质作用及其强度在空间分布上表现出不均匀性 ,一般在断裂带内发育且强度大 ,断裂带北侧变质程度低、强度小 ;马超营断裂带对区内熊耳群火山岩的变质作用特征起着一定程度的控制作用 ;变质作用具有多次叠加、改造的特征 ,一般区域变质作用较早较普遍 ,动力变质和热液变质作用偏晚和较局限 ,每次大的构造运动都伴随着后两者的发生
This paper discusses the regional metamorphism, dynamic metamorphism and hydrothermal metamorphism of the Machaoying fault belt and the Xiong’er Group volcanic rocks on the southern slope of Xiong’er Shan. The metamorphism and its intensity of volcanic rocks show inhomogeneity in spatial distribution, generally develop in the fault zone and have great strength, and low degree of metamorphism and strength on the northern side of the fault zone. The Machaoying fault zone has a great influence on the metamorphism The tectonism plays a certain degree of controlling role. Metamorphism has the characteristics of superposition and remolding many times. The metamorphism of the general area is earlier than normal, and the metamorphism and hydrothermal metamorphism are late and limited. Each major tectonic movement Accompanied by the occurrence of the latter two