甘肃省肃北县703金矿成矿地质条件及成因分析  

Metallogenic geological conditions and genetic analysis of 703 Gold Deposit in Subei County,Gansu Province

作　　者：张玉明 陈镇海 ZHANG Yuming;CHEN Zhenhai(Zhangye Geo-mine Survey Institute,Non-ferrous Metal Geological Exploration Bureau of Gansu Province,Zhangye 734012,Gansu,China)

机构地区：[1]甘肃省有色金属地质勘查局张掖矿产勘查院,甘肃张掖734012

出　　处：《资源信息与工程》2023年第5期5-8,共4页Resource Information and Engineering

摘　　要：勘查区位于甘肃省北山地区,属于扫子山—红石山华力西期Au-Cu-Ni-Cr-Fe成矿带,带内以Au、W、Mo、Fe为主的矿化强烈。通过地球化学分析统计,亲硫的低温元素组合Au、As、Sb等有利于成矿,这类组合指示金成矿与区内断裂构造或层间破碎带密切有关。综合评价认为,矿床为岩浆活动期后富硫化物的含金热液沿裂隙充填成矿,属中温热液裂隙充填成因类型。The exploration area is located in the Beishan area of Gansu Province,which situated the Shaozishan-Hongshishan Variscan Au-Cu-Ni-Cr-Fe metallogenic belt.This belt is characterized by intense mineralization of Au,W,Mo and Fe.According to the geochemical analysis andstatistics,the low temperature element associations such As Au,As and Sb,which are sulfophilic elements,are favorable for mineralization.Such associations indicate a close relationship between gold mineralization and the fault structure or interlayer fracture zone in the area.Based on a comprehensive evaluation,the deposit is believed to be formed by the filling of sulfide-rich,gold-bearing hydrothermal fluids along fractures subsequent to magmatic activity.It is categorized as a mesothermal hydrothermal fissure filling deposit.

关 键 词：肃北县 703金矿 成矿地质条件 矿床成因 

分 类 号：P618[天文地球—矿床学]