摘要
通过矿物地球化学研究 ,认为陕西二台子铜金矿床属钠长石碳酸角砾岩型矿床 ,是大陆热点成矿系统中幔源碱性热流体成岩成矿作用多期叠加所形成。砷黝铜矿富Fe、As,低Sb、Ag ;黄铁矿中富As、Se,白云石 (内核 )有显著的锰铁白云石 (外部环带 )增生环带 ;长石类矿物出现富Mg铁长石 ;这些特征是陕西二台子铜金矿床属钠长石碳酸角砾岩型矿床的典型矿物地球化学特征。矿物地球化学组合类型指标可判断不同矿化类型及分散矿化 ,矿区外围半仓沟有较大的找矿前景。
Research on mineral geochemistry of copper\|gold deposits, Ertaizi, Zhenan County, Shaanxi Province, has shown that the copper\|gold exists in the albite\|carbonate brecciated rock series which were formed from Devonian to Yanshanian. Tennantite is rich in Fe, As and Cu and poor in Sb and Ag, with As ranging from \{17.84%\} to \{19.47%\}. Pyrite contains \{0.5%\} to \{4.5%\} As and 1.0% Se. Dolomite (inner core) is enclosed by Mn\|ankerite (outer part). (Mg\|Fe)\|rich feldspar occurs in the deposit. These are the mineral chemistry characteristics of the Ertaizi copper\|gold deposit. Mineral geochemical association types can be used to indicate the prospecting spots and mineralization types. Bancanggou near the Ertaizi copper\|gold deposit is the best target area for further exploration.
出处
《矿物学报》
CAS
CSCD
北大核心
2000年第3期264-272,共9页
Acta Mineralogica Sinica
基金
中国有色金属工业总公司人才培养基金
中国科学院地球化学研究所矿床地球化学开放研究实验室资助
关键词
矿物地球化学
异常评价
铜金矿床
秦岭造山带
mineral geochemistry
anomaly evaluating
association type
copper\|gold deposit
Ertaizi
Qinling orogen
