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.

经恢复可将下二台群分为三个组：岭组，黄顶子组及烧锅屯组，其造分别为火山造、碳酸盐造及碎屑造。