摘要
内蒙古柳坝沟金矿床位于华北地台北缘,是一个典型的以广泛发育钾长石化为重要特色的金矿床。柳坝沟矿床中矿体的石英和黄铁矿的稀土元素特征显示其早期(钾长石化阶段)成矿流体为高温、相对还原的,晚期成矿流体温度逐渐降低。石英和黄铁矿Eu正异常大小是本区寻找石英-钾长石脉型金矿的重要标型特征,Eu正异常越明显,含矿性越好。柳坝沟矿区313#脉矿体中部(163勘探线附近)以及163勘探线以东区域为下一步找矿重点区域,深部寻找石英-钾长石脉型金矿的可能性较大。
Liubagou gold deposit,lying in the north margin of North China Craton,is a typical deposit characterized by largely potash feldspathization.Geological characteristics of rare earth elements in quartz and pyrite of the Liubagou gold deposit show that the early ore-forming fluid（K-feldspar） is hypothermal and reductive,and that the ore-forming fluid temperature decreases gradually.The Eu positive anomaly of quartz and pyrite is an important typomorphic characteristic for exploring the quartz and K-feldspar vein type gold deposits,and the Eu positive anomaly is proportional to ore-bearing potential.The middle and east parts of No.313 vein in the Liubagou gold deposit are the key prospecting areas.It is very possible to find the quartz and K-feldspar vein type gold deposit in the deep region.
出处
《矿物岩石地球化学通报》
CAS
CSCD
北大核心
2012年第1期23-30,共8页
Bulletin of Mineralogy, Petrology and Geochemistry
基金
国家自然科学基金资助项目(40772060)
国家重点基础研究发展计划项目(2009CB421003-01)
长江学者和创新团队计划资助
高等学校创新引智计划(B07011)
中国人民武装警察部队科研项目
关键词
稀土元素
成矿流体
成矿预测
柳坝沟金矿床
内蒙古
rare earth element
ore-forming fluid
metallogenic prediction
liubagou gold deposit
Inner Mongolia
