凤城新岭银铅锌矿构造—岩浆活动对成矿的制约

Characteristics of Geological Metallogenic Structures in Xinling Silver Lead Zinc Mine,Fengcheng

根据在新岭银铅锌矿矿区的工作以及现场地质现象的实际观察测量分析,结合相关的地质资料,并通过整理和分析对矿区内地层、岩浆岩、构造地质特征、蚀变、矿床成因类型等相关地质资料,确定了含矿地质构造特征,矿体赋存条件(厚度、品位、形态)、类型,对以后的外围找矿深部研究等工作具有指导意义,尤其对新岭花岗岩体对变质碳酸盐地层存在新的找矿标志和找矿方向,可能存在矽卡岩型工业矿体,重新圈定了含矿构造,确定了矿体数目,开展了重新估算储量等地质工作。

Xinling silver lead zinc deposit is at 46km to northwest of Fengcheng City,and it's belonging to Qingchengzi town.The fold and fault structures are relatively developed in the area.According to the distribution direction,the fault structures in the mining area can be divided into three groups:near east-west,north-east and north-south,and the north-east transmitting ore structure is the main one.In the mining area,magmatic activity is strong,magmatic rock is developed,and magmatic activity has the characteristics of multi-stage and multi invasion.The vein rocks are basic and acidic.The early and late stage of mineralization belong to extensional faults,and the mineralization stage belongs to extensional and torsional faults.The ore bodies are all located in the upper and lower walls of granodiorite.