冀东麻地稀有金属碱长花岗岩厘定及意义  

Determination and Significance of Rare Metal Alkali-feldspar Granite in Madi,Eastern Hebei Province

作　　者：苗群峰 谢吾 齐云飞[1] 刘剑波[1] MIAO Qunfeng;XIE Wu;QI Yunfei;LIU Jianbo(Eighth Geological Bridege of Hebei Geology and Mineral Resources Exploration Bureau,Qinhuangdao,Hebei 066001,China)

机构地区：[1]河北省地矿局第八地质大队,河北秦皇岛066001

出　　处：《中国锰业》2018年第4期1-4,共4页China Manganese Industry

基　　金：兴隆县花市铷矿成矿系统研究项目(454-0401-YBN-M208)

摘　　要：冀东花市铷等稀有金属矿床是近年来探明的超大型稀有金属矿床。铷等稀有金属赋存于麻地岩体中。从矿物学角度,结合光学显微镜、电子探针等研究方法,对麻地稀有金属花岗岩的矿物组合及分类命名进行了讨论。研究表明,麻地稀有金属花岗岩中的斜长石类矿物为钠长石,麻地岩体属碱长花岗岩。岩浆的高度分异演化是稀有金属元素成矿的重要前提。Rare metal deposits such as rubidium in Jidong Huashi for a super-large scale rare metal deposits have been discovered in recent years. Rb and other rare metals occur in Madi intrusions. From the perspective of mineralogy, the mineral assemblage and classification of rare metal granite in Madi intrusions are discussed in using the research methods of optical microscope and election probe. It shows that plagioclase feldspar minerals in rare metal granite are albite, which indicates that the Madi rock belongs to Alkali-feldspar Granite. The highly differentiated magmatic evolution is an important prerequisite for the metallogenesis of rare metals.

关 键 词：稀有金属矿床 电子探针 钠长石 碱长花岗岩 分异演化 

分 类 号：P588.121[天文地球—岩石学]