It is controled by fracture in the contact zone between Precambrian system and Lower Palaeozoic migmatitic gneiss and Yanshanian granite.Ore bodies occur absolutely in fractural zone as veins, lens.

• 矿床产出受前寒武系及下古生界混合片麻岩与燕山晚期花岗岩之间的接触带断裂构造控制,矿体严格产于断裂带内部,呈脉状、透镜状。