文档介绍：第 36 卷
第 4 期
吉林大学学报(地球科学版)
VoI. 36
No. 4
2006 年 7 月
JournaI of JiIin University( Earth Science Edition)
JuIy 2006
运用铀同位素研究砂岩型铀矿的几个问题
刘金辉,孙占学,史维浚
东华理工学院地球科学系,江西抚州 344000
摘要:通过砂岩铀矿矿卷前锋铀同位素特征和 512 矿床含矿层铀同位素特征的研究,对砂岩型铀矿形
成过程、铀同位素找矿标志进行了讨论。研究结果表明,砂岩铀矿的形成是一个多期次、滚动式、由氧化向
还原环境推进的动态成矿过程,矿体主要定位于!区段。根据铀同位素样品在不同氧化还原分带中的分
布和矿体的滚动性特征,认为 A 区定名为地球化学矛盾区更为恰当。
关键词:同位素地球化学;铀同位素;水文地球化学;铀矿地质;砂岩铀矿
中图分类号:P619. 14
文献标识码:A
文章编号:1671 5888(2006)04 0516 05
The Discussions on Some Problems of Sandstone
Type Uranium Ore by Using Uranium Isotopes
LIU Jin-hui,SUN Zhan-xue,SHI Wei-jun
Earth Science Department,East China Institute of Technology,Fuzhou,Jiangxi 344000,China
Abstract:Based on the studies of uranium isotope characteristics in the front of ore roII and uranium-
bearing Iayer in the 512 deposits,the forming processes and ore prospecting markers of uranium isotopes are
discussed. The resuIts indicate that the forming process of the sandstone type uranium deposit is a muIti-phase
roIIing dynamic process from oxidation to reduction environment. The uranium ore body is mainIy Iocated in
the sector !. It is reasonabIe that the sector A shouId be named as the geochemicaI confIict sector according
to the distributions of uranium isotope sampIes in the different oxidation
reduction zones and roIIing features
of forming process of the ore body.
Key words:isotope