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小秦岭变质核杂岩周缘拆离断层的微角砾岩中发育脉状和角砾状假熔岩 ,Raman光谱分析结果表明假熔岩基质存在 3种结构 :超碎裂细粒结构、隐晶质结构和含微量玻璃质结构 ,3种结构为不同程度超碎裂的结果 ,证明小秦岭拆离断层中假熔岩的成因机制为超碎裂研磨为主的研磨 熔融机制
Raman spectroscopy results show that there are three kinds of structures in the matrix of the pseudo-lava: ultrafragmentation fine-grained structure, aphanitic structure And the microstructure of vitreous, the results of three kinds of structures with different degree of superfragmentation show that the genetic mechanism of fake lava in the detachment of the Xiaoqinling fault is the grinding and melting mechanism dominated by superfine fragmentation