They are controlled by shear fracture belt of epimetamorphic rock series of Precambrian Period. 主要赋存于前寒武纪浅变质岩系中,受剪切断裂带控制。
The geochemistry model and the significance of two kinds of granitic rocks in early Precambrian period in Liaoning 辽宁省早前寒武纪两类不同花岗质岩石元素地球化学模型及意义
And this is identical to the Precambrian rocks in the west, subsidence in the east, and lithological characters distribution characteristics of Jurassic Period rocks. 这正与该区西部为前寒武纪岩类,东部陷没,而上覆侏罗纪岩类的岩性分布特征相吻合。