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矿床的形成与矿区二长斑岩岩体有关 .岩体内发育 4组原生节理或裂隙带 ,这些节理或裂隙带控制了矿体的分布 ,特别是它们的交汇部位是成矿的良好部位 .矿体形态为脉状、网脉状和透镜体状 .有 4种矿石类型 :黄铁矿石英脉型 ;黄铁矿硅酸盐石英脉型 ;黄铁绢英岩型和细脉浸染型 .矿床可以划分为 2个成矿期 :内生成矿期和表生成矿期 .内生成矿期划分 3个成矿阶段 ,第 2成矿阶段是金矿主成矿阶段 .矿物组合为黄铁矿、自然金、银金矿、石英、绿泥石、方解石、白云石、绢云母、白云母和重晶石 .矿体的围岩蚀变主要为硅化、绢云母化、黄铁绢英岩化、绿泥石化、硅酸盐化 .氢氧同位素、硫同位素以及流体包裹体的研究表明 ,成矿热液为岩浆热液和大气降水的混合体 .成矿热液温度为130℃ ,成矿压力为 2 2MPa ,盐度 1 0 3%,氧逸度 -36 7～ -38 8,pH =5 8～ 8 8.成矿流体早期显酸性 ,晚期显碱性 .认为该矿床为浅成低温、低盐度流体成矿 ,属于次火山斑岩型金矿 .
The formation of the ore deposit is related to the two porphyry rocks in the ore district, and four groups of primary joints or fractures are developed in the rock mass, which control the distribution of the ore body, especially the intersection of them is a good site for metallogenesis. There are 4 types of ore: pyrite quartz vein type; pyrite silicate quartz vein type; pyrite sericite type and vein vein type. The deposit can be Divided into two metallogenic stages: endogenic mineralization and epigenetic ore-forming period.The endogenic mineralization period is divided into three metallogenic stages, and the second metallogenic stage is the main gold mineralization stage.The mineral assemblage is pyrite, natural Gold, silver and gold ores, quartz, chlorite, calcite, dolomite, sericite, muscovite and barite.The alteration of the wall rocks in the ore body is mainly silicification, sericitization, pyroxenite, chlorite , Silicification.The study of hydrogen and oxygen isotopes, sulfur isotopes and fluid inclusions shows that the hydrothermal fluid is a mixture of magmatic hydrothermal fluids and atmospheric precipitation.The hydrothermal fluid temperature is 130 ℃ and the metallogenetic pressure is 2 2MPa , Salinity of 103%, oxygen fugacity -36 7 ~ -38 8, pH = 58 ~ 8 8. Mineralization flow Early acidic, alkaline advanced significantly. The deposit is considered epithermal low salinity fluid mineralization, belonging subvolcanic porphyry gold.