The host rocks of the ore bodies, the Gaixian Formation of Liaohe Group, are a medium grade metamorphosedrock of the Early Proterogoic.
矿体围岩为早元古界辽河群盖县组中部变质岩系。
2
The quartz-mica schist, quartzite and marble were metamorphosed sedimentary rocks, and, together with paragneiss and mafic rock, constituted the old supracrustal series.