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文章系统地研究了矿床蚀变矿物组合、近矿围岩蚀变及金矿化特点,表明矿化与蚀变具有明显的空间分带特征。从赋矿层位看,铅锌矿化产于流纹质凝灰岩中,反映了火山沉积作用对铅锌成矿的控制;而金矿化产于灰岩与流纹质凝灰岩的接触面上及其附近。空间上金矿体分布在矿体前锋,铅锌矿体分布在矿体中部、尾部和矿体上盘围岩中,具有金矿体在上部,铅锌矿体在下部的分带特征。与成矿作用关系密切的围岩蚀变是重晶石化,其次为硅化和绢云母化等,垂向自上而下绿帘石化、黄铁矿化普遍发育,在矿体中深部位重晶石化、硅化普遍发育,与金成矿关系密切。
The article systematically studied the alteration of mineral assemblages, the alteration of mineral deposits and the characteristics of gold mineralization in the ore bodies, indicating that the mineralization and alteration have obvious spatial zoning characteristics. Seen from the ore-hosting position, Pb-Zn mineralization occurs in rhyolitic tuff, reflecting the control of lead-zinc mineralization by volcanic sedimentation. The gold mineralization occurs at the interface between limestone and rhyolitic tuff nearby. The gold ore bodies are distributed in the front of the ore body spatially, and the lead-zinc ore bodies are distributed in the middle part, the tail part and the surrounding rock of the ore body. The gold ore bodies are in the upper part and the lead-zinc ore body is in the lower part. The wall rock alteration closely related to mineralization is barite, followed by silicification and sericitization. Vertical vertical ephenolithicization from top to bottom, pyrite mineralization generally develops, deep recrystallization in the ore body Petrification and silicification are generally developed and are closely related to gold mineralization.