若尔盖铀矿田向阳沟铀镭平衡系数特征  

Uranium-Radium Equilibrium Coefficient of the Xiangyanggou Uranium Deposit in Roigê

作　　者：王春[1] 马光[1] 李宝新[2] 李宏涛[2] 

机构地区：[1]河南理工大学资源环境学院,河南焦作454000 [2]四川省核工业地质调查院,成都610061

出　　处：《四川地质学报》2015年第4期548-550,561,共4页Acta Geologica Sichuan

摘　　要：铀镭平衡系数是衡量铀镭平衡状态的重要参数,不仅反映矿体所处的地球化学环境以及铀与镭的贫化、富集、迁移状况,也影响铀矿床储量计算的准确性和可靠性。通过计算了向阳沟矿床铀镭平衡系数,探讨了铀镭平衡系数与铀含量的关系,得出了向阳沟处于氧化—还原过渡带、矿床总体偏铀的结论,为修正该区测井解释结果、确定矿体边界、估算铀矿资源量以及预测成矿有利地段提供了科学依据。U-Ra equilibrium coefficient is an important parameter measuring U-Ra equilibrium state. It not only touches on the geochemical environment of U ore body and enrichment or depletion of uranium and radium, but also relates to accuracy and reliability of calculation of reserves of uranium deposits. This paper calculates U-Ra equilibrium coefficient of the Xiangyanggou deposit, and has a discussion on the relationship between U-Ra equilibrium coefficient and uranium content. From those it is concluded that the Xiangyang Valley lies in an oxidation-reduction transition zone which provides a scientific basis for the correction of logging data, determination of cut---off grade of the U ore, estimation of uranium resource and prediction of favorable metallogenic district.

关 键 词：铀矿 平衡系数 地球化学 向阳沟 

分 类 号：P619.14[天文地球—矿床学]