Xiaertai rock group,a set of metamorphic rock system in Xiaertai area,has experienced strong ductilebrittle deformation and then thermal contact metamorphism and dynamometamorphism in the late stage.

经原岩恢复可将岩群分为三个岩组：岭岩组，黄顶子岩组屯岩组，其原岩建造分别为火山岩建造、碳酸盐岩建造碎屑岩建造。