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本文从花岗质熔体结构特征的角度,探讨了熔体成分与其产铀潜力之间的关系。分析了熔体中的K,Na对铀富集的控制作用,八面体、四面体空隙和晶体场效应,O/Si比值对铀活动性的影响。讨论了决定熔体粘度的一些因素,提出了熔体相对粘度值的计算方法,结合实例介绍了熔体相对粘度值的意义及地质应用。总结了有利于产铀的熔体结构特征标志。
In this paper, the relationship between melt composition and its potential for uranium production is discussed from the perspective of structural features of granitic melts. The effects of K and Na in melt on uranium enrichment, the influence of octahedron, tetrahedron void and crystal field effect and O / Si ratio on uranium activity were analyzed. Some factors that determine the viscosity of the melt are discussed. The calculation method of the relative viscosity of the melt is proposed. The significance of the relative viscosity of the melt and the geological application are introduced with examples. The structural features of the melt-producing uranium are summarized.