摘要
勉略构造混杂岩带是陕西省重要的金矿矿集区之一,矿床成因研究是该区金矿找矿的关键,根据吴家河金矿床地质及地球化学特征等资料,对吴家河金矿控矿构造、成矿物质来源、矿床成因进行了研究分析。研究认为金家河岩组为金矿形成提供了成矿物质来源,韧性剪切带内火山沉积和陆源碎屑沉积的过渡层位为金矿的形成提供了沉积场所,矿床形成经历了多阶段、多期次的构造作用改造,矿床成因为产于韧性剪切带内的与火山碎屑岩有关的构造蚀变岩型金矿,研究成果可为该区寻找同类型金矿床提供借鉴意义。
Mianlue tectonic melange belt is one of the important gold ore concentration areas in Shaanxi Province.The study of deposit genesis is the key to gold prospecting in this area.Based on the geological and geochemical characteristics of Wujiahe gold deposit,the ore-controlling structure,ore-forming material source and deposit genesis of Wujiahe gold deposit are studied and analyzed.Research suggests Jinjiahe rock group provides a source of ore-forming materials for gold deposit,the transition horizon of volcanic and terrigenous clastic deposits within the ductile shear zone provides a deposit site for the formation of gold deposits,the formation of the deposit has undergone multi-stage and multi-stage tectonic transformation,the deposit is formed by tectonically altered rock type gold deposits associated with pyroclastic rocks occurring in ductile shear zone.The research results can be used for reference for searching the same type of gold deposits in this area.
作者
成欢
庞振甲
王瑞廷
冀月飞
CHENG Huan;PANG Zhenjia;WANG Ruiting;JI Yuefei(Shaanxi Northwest Nonferrous Geological Survey Co.,Ltd.,Xi’an 710054,Shaanxi,China;Northwest Nonferrous Geological and Mining Group Co.,Ltd.,Xi’an,710054,Shaanxi,China;Shaanxi Engineering Technology Research Center of Comprehensive Utilization of Mineral Resources,Xi’an 710054,Shaanxi,China;Academician and Expert Work Station of Northwest Geological and Mining Group Co.Ltd.for Nonferrous Metals,Xi’an 710054,Shaanxi,China)
出处
《矿产勘查》
2022年第5期600-607,共8页
Mineral Exploration
基金
陕西省略阳县吴家河金矿详查(西北有色地质矿业集团有限公司2017年地勘项目)项目资助
关键词
地质特征
成因
吴家河金矿床
钻探
陕西省
geological characteristics
genesis
Wujiahe gold deposit
drilling
Shaanxi Province
