兰花岭及其外围银(多金属)预测区找矿远景评价  

Prospecting Prospect Evaluation For Silver(Polymetallic)Forecast Areas in Lanhualing and Its Periphery

作　　者：张芷毓 ZHANG Zhi-yu(Liaoning Non-Ferrous Geological Exploration Institute Co.,Ltd.,Shengyang 110013,China)

机构地区：[1]辽宁省有色地质勘查总院有限责任公司,辽宁沈阳110013

出　　处：《有色矿冶》2024年第5期1-3,共3页Non-Ferrous Mining and Metallurgy

摘　　要：分析了兰花岭银矿的成矿地质条件:兰花岭背斜两翼银金赋存层位、控矿构造和岩浆热液成矿环境极其优越,地层出露为辽河群大石桥组二段、三段和盖县组。地球化学条件:共发现金元素异常22处,银元素异常14处,铅元素异常10处,砷元素异常24处,并圈定出北西向展布的元素组合异常4处。地球物理条件:获得三条激电异常带,与层间破碎带相吻合。地质预查成果:发现3条矿(化)带,发现5条银矿(化)体。并以此为基础评价了外围预测区的找矿远景。The metallogenic geological conditions of the Lanhualing silver deposit has been analyzed in detail:the strata where silver and gold are hosted on the two wings of the Lanhualing anticline,the ore-controlling structure and the magmatic hydrothermal metallogenic environment are extremely superior.The strata exposed are the second and third members of the Dashiqiao Formation and the Gaixian Formation of the Liaohe Group.Geochemical conditions:A total of 22 gold element anomalies,14 silver element anomalies,10 lead element anomalies and 24 arsenic element anomalies have been found,and four element combination anomalies distributed in the northwest direction have been delineated.Geophysical conditions:Three induced polarization anomaly belts have been obtained,which coincide with the interlayer fracture zone.Geological preliminary survey results:Three ore(mineralized)belts have been discovered,and five silver ore(mineralized)bodies have been discovered.Based on this,the prospecting prospects of the peripheral predicted area are evaluated.

关 键 词：兰花岭银矿 外围预测区 找矿 远景评价 

分 类 号：P618.52[天文地球—矿床学]