江西省桃山地区花岗岩型铀矿预测及找矿方向  

Metallogenic Prognosis and Prospecting Orientation of Granite Type Uranium Deposit in Taoshan Area,Jiangxi Province,China

作　　者：蔡煜琦[1,2] 徐浩[1,2] 郭庆银 朱鹏飞[1,2] 汪远志[4] 谢迎春[4] 

机构地区：[1]核工业北京地质研究院,北京100029 [2]中核集团铀资源勘查与评价技术重点实验室,北京100029 [3]中核集团地矿事业部,北京100013 [4]核工业航测遥感中心,石家庄050002

出　　处：《吉林大学学报（地球科学版）》2013年第4期1283-1291,共9页Journal of Jilin University：Earth Science Edition

基　　金：中国地质调查局地质大调查项目(1212010733812)

摘　　要：江西省桃山地区是我国南方四大花岗岩型铀矿田之一,铀成矿条件极其有利。前人在桃山地区开展了大量研究工作,但是缺乏对整个桃山地区地质、物探、化探和遥感等多元信息的综合集成和铀矿产的定量评价工作。从大布等典型铀矿床的剖析入手,厘定了模型区铀成矿要素和预测要素,总结了区域岩性、构造、蚀变与铀成矿的关系。提取预测要素,在GIS平台上圈定并优选了最小预测区,并指出了桃山地区铀资源量扩大的前景及方向,认为桃山断裂南西段铀找矿应以硅化带亚型为主,桃山断裂北东段找矿应以碎裂蚀变岩带亚型为主,北东段深部找矿前景较好。With mostly favorable ore-forming conditions for uranium mineralization,Taoshan area is one of the four important granite-type uranium ore fields in South China.Previously a lot of research work have been done,but the integration of geological,geophysical,geochemical and remote sensing information of the entire area and quantitative evaluation of uranium mineralization potential are lacking.By studying on some typical uranium deposits of Taoshan area,such as Dabu uranium deposit,the authors investigated the ore-forming factors and prediction varibles in the modeling area and summarized the relations among lithology,structure,alteration and uranium mineralization.Using the prediction varibles,smallest predication zones have been delineated and selected based on GIS.It is concluded that the area have expanding uranium resources potential and the SW and NE section of Taoshan fault should focus on the silicified zone subtype and the cataclastic altered rock zone subtype respectively.Furthermore,the deep of the NE section also has great mineralisation potential.

关 键 词：江西桃山地区 花岗岩型 铀矿 成矿要素 预测模型 

分 类 号：P612[天文地球—矿床学]