由于晚石炭世末受到韧性剪切作用，大部分产生塑性变形，成为初糜棱岩&超糜棱岩的花岗质岩石，宏观上似具片麻状构造。
Due to the ductile shearing at the end of Late Carboniferous most rocks are deformed to be granitic mylonites and super-mylonites macroscopically in a gneissic-like structure .
片麻状构造