摘要
基于诸广山岩体南部长排地区某铀矿床86个矿石样品的铀(U)、镭(Ra)测试分析结果,本文研究了铀-镭平衡系数(K_(p))与矿体埋深、铀含量以及岩性之间的关系。结果表明,在近地表或浅层地表,铀-镭处于偏镭状态,在中深部,铀-镭基本上处于平衡状态,整体上保持铀-镭平衡态势;当铀含量小于0.05%时,K_(p)与矿石中铀含量近似呈负相关关系,当铀含量大于0.25%时,K_(p)与矿石中铀含量无明显变化规律;除赤铁矿化碎裂花岗岩略偏铀之外,其他岩性含矿岩体均处于铀-镭平衡状态。本研究为该区γ测井解释结果的修正、矿体边界的确定和铀资源量的估算提供了科学依据。
Based on the U and Ra test analysis results of 86 ore samples from a uranium deposit in the Changpai area of the southern Zhuguangshan pluton,this paper studies the relationship between the U-Ra balance coefficient(K_(p))and the buried depth of the ore body,uranium content and lithology.The results show that U-Ra is in a partial radium state near the surface or shallow surface,and in the middle and deep parts,U-Ra is basically in a state of equilibrium,and the U-Ra equilibrium state is maintained as a whole;when the uranium content is less than 0.05%,there is approximately a negative correlation between K_(p) and the uranium content in the ore,when the uranium content is greater than 0.25%,there is no obvious change rule between K_(p) and the uranium content in the ore;except for the hematite fragmented granite which is slightly uranium,other lithologic ore-bearing rock bodies are in a U-Ra equilibrium state.This study provides a scientific basis for the correction ofγlogging interpretation results,the determination of the ore body boundary and the estimation of uranium resources in this area.
作者
郎白秋
王家跃
LANG Baiqiu;WANG Jiayue(Research Institute No.290,CNNC,Shaoguan Guangdong 512000)
出处
《河南科技》
2021年第14期121-124,共4页
Henan Science and Technology
关键词
诸广山岩体
铀矿床
铀-镭平衡系数
Zhuguangshan pluton
uranium deposit
U-Ra balance coefficient
作者简介
郎白秋(1992-),男,硕士,助理工程师,研究方向:铀矿地质勘查。
