广西向阳坪铀矿床铀镭平衡系数特征

Uranium Radium Equilibrium Coefficient Features of Xiangyangping Uranium Deposit,Guangxi

针对向阳坪铀矿床铀镭平衡系数变化,共采集铀镭平衡样品151件,进行铀镭含量测定,研究了矿床平均铀镭平衡系数与矿石类型、铀含量、标高以及矿体的变化关系,结果显示向阳坪矿床铀镭处于基本平衡略偏镭状态的分布特征,平衡系数大小与矿石类型关系并不明显,铀镭平衡系数大小与取样标高和铀含量的高低呈负相关,随着铀含量值和标高的增加而减小;F_(7)构造中的矿体铀镭平衡系数显示略偏镭,F_(10)构造中的矿体铀镭平衡系数显示略偏铀,总体处于近似平衡状态。本研究为该地区γ测井解释以及铀资源储量的估算提供参考依据。

For the variation law of uranium radium equilibrium coefficient in Xiangyangping uranium deposit,151 uranium radium equilibrium samples were collected to determine the uranium radium content.The relationship of the average uranium radium equilibrium coefficient to the type,uranium content and elevation of the sample was studied for the deposit.The results showed that the uranium radium equilibrium in Xiangyangping uranium deposit is basic balanced with slightly partial to radium.The equilibrium coefficient has no obvious relation to the ore type,but is negatively correlated with the sampling elevation and uranium content,that is decreased with the increase of uranium content and elevation.The equilibrium coefficient of the ore body shows slightly radium partial in F_(7) structure,and slightly uranium partial in F_(10) structure.This study provided a reference for the gamma logging interpretation and the estimation of uranium resources and reserves in the region.