地质与资源2025，Vol.34Issue(1)：44-51,8.DOI:10.13686/j.cnki.dzyzy.2025.01.005
内蒙古翁牛特旗南湾子银金矿床地质特征
Geological characteristics of Nanwanzi silver-gold deposit in Wengniute Qi,Inner Mongolia
摘要
Abstract
By field geological survey,4 silver-gold orebodies and 16 faults or fracture zones are found in the Nanwanzi silver-gold deposit in Inner Mongolia.Combined with laboratory sample testing results and comprehensive data,the geological characteristics,genesis and prospecting indicators of the silver-gold deposit are studied on the basis of geological structures of the orefield,and related petrology and mineralogy of the deposit.The Nanwanzi silver-gold deposit is occurred mainly in the tuffite breccia,breccia-bearing tuff and effusive rhyolite of Elitu Formation,and the orebody is mainly controlled by F1,F2,F12 and F13 faults.The orebody is of ferromanganic quartz vein type,with metal minerals of pyrolusite,psilomelane,pyrite,goethite,lepidocrocite and tetrahedrite.The ores are in hypidiomorphic-allotriomorphic granular texture,dominated by sparse disseminated structure and massive structure.The orebodies are in podiform lenticle,lenticular,pisolitic and thin-bedded shapes.The study shows that there is no obvious associating relationship between gold and silver.The deposit genetically belongs to meso-epithermal alteration type.The ferromanganic quartz vein is the direct prospecting indicator.关键词
银金矿床/找矿标志/矿床成因/控矿因素/内蒙古Key words
silver-gold deposit/prospecting indicator/deposit genesis/ore-controlling factor/Inner Mongolia分类
天文与地球科学引用本文复制引用
刘礼广,刘福海,李和禄,吕彧,张慧龙,王丽萱..内蒙古翁牛特旗南湾子银金矿床地质特征[J].地质与资源,2025,34(1):44-51,8.基金项目
中国地质调查局项目"东北亚欧洲国际合作地质调查"(DD20221806). （DD20221806）
