华南产铀花岗岩蚀变矿物绿泥石与铀成矿的联系  

The Relationship Between Chlorite and Uranium Mineralization of Granites in South China

作　　者：章健[1] 陈培荣[2] 王凯兴 刘鑫扬 陈琪[1] 黄剑[1] ZHANG Jian;CHEN Pei-rong;WANG Kai-xing;LIU Xin-yang;CHEN Qi;HUANG Jian(Changsha Uranium Research Institute Changsha,HN 410007,China;School of Earth Sciences and Engineering,Nanjing University,Nanjing,JS 210093,China;School of Earth Sciences,East China University of Technology,Nanchang,JX 330013,China;China Nuclear Geology,Beijing 100013,China)

机构地区：[1]核工业二三〇研究所,湖南长沙410007 [2]南京大学地球科学与工程学院,江苏南京210003 [3]东华理工大学地球科学学院,江西南昌330013 [4]中国核工业地质局,北京100013

出　　处：《东华理工大学学报（自然科学版）》2018年第2期134-142,共9页Journal of East China University of Technology(Natural Science)

基　　金：中国核工业地矿事业部"苗儿山中段铀资源潜力评价与勘查"(201624)

摘　　要：选取了花岗岩中最为常见的蚀变矿物绿泥石作为研究对象,通过绿泥石的成分、种类来总结产铀花岗岩中的绿泥石所具有的特征。产铀花岗岩绿泥石种类复杂,包括铁绿泥石、铁镁绿泥石、磷绿泥石、鲕绿泥石、铁叶绿泥石和辉绿泥石,其MgO含量较低、FeO和Fe_2O_3含量较高。绿泥石组成显示产铀花岗岩形成于泥质岩源区,其源岩更加富铀。产铀花岗岩的绿泥石四面体和八面体的位置成分复杂。产铀花岗岩的绿泥石形成温度略高,在低氧逸度的环境下形成。Chlorite as the most common alteration mineral in South China granites. This article researched chlorite and concluded the characteristics of the chlorites in uranium-deposit-bearing granites（ UDG）. The types of the chlorites in UDG are complex,including daphnite,brunsvigite,thuringite,chamosite,euralite,and diabantite.The chlorites in UDG display low MgO,high FeO,and Fe2O3 contents. According to the composition of chlorite,the UDG are derived from a high U contents pelite-source. The sites compositions of the tetrahedral and octahedron of chlorites in UDG are complex. And the chlorites in UDG form under high-temperature and the low-fO2 environment.

关 键 词：华南花岗岩 绿泥石 铀成矿 氧逸度 

分 类 号：P619.14[天文地球—矿床学]