矿区出露中朱罗统叶巴组火山次火山沉积岩、古新世黑云母花岗斑岩、中新世二长石英斑岩以及渐新世花岗斑岩。
The middle Jurassic Yeba formation volcanics, Paleocene biotite granite porphyry, Miocene quartz monzonite and Oligocene granite porphyry could be found in the ore field.
成矿流体主要来源于次斜长花岗斑岩携带的热流体，其次是断裂系统的冷流体。
Ore forming fluid was composed of mainly the thermal fluid supplied bY the subplagio granite porphyry and subordinately the cool fluid come from the fracture structure.
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