原生晕垂向分带模型找矿法及其在铀矿勘查中的应用  

Vertical Zoning Model of Primary Halos and Its Application to Uranium Exploration

作　　者：叶庆森 方适宜 欧阳平宁 陶志军 

机构地区：[1]核工业230研究所,湖南长沙410007

出　　处：《铀矿地质》2014年第2期116-121,共6页Uranium Geology

基　　金：中国核工业地质局铀矿地质项目(200647)资助

摘　　要：原生晕指示元素垂向分带模型找矿法是通过发现、研究矿床原生晕指示元素垂向分带规律、建立指示元素垂向分带模型进行找矿的地球化学勘查方法。找矿实践表明,该方法可用于攻深找盲、推断矿体剥蚀程度、追踪矿体延伸方向,其找矿效果明显。有关该方法分带序列计算方法、分带模型以及在铀矿床(体)预测应用等方面已取得了较大进展。在分带序列计算方法方面,我国化探工作者提出的广义衬值法、浓集重心法,计算过程简单,值得推广。近年来该方法的重要研发成果——构造地球化学原生叠加晕评价技术在铀矿地质领域得到了广泛应用,可大大减小工作程度较高地区的化探工作量、降低勘查费用、缩短勘查周期,从而有效提升铀矿资源勘查的水平和能力。因此,该方法应用于铀矿勘查,其前景非常广阔。The exploration method of vertical zoning model o{ primary halos is an geochemical way which study the vertical zoning rules of indicator element of geochemical halos in the base rock, build the zoning model and utilize the model to explore metal deposit related to the primary and secongary halos. Prospecting experience shew that the method can be used to find the deep and blind deposits, deduce denudation extent of the ore bodies and trace stretch direction of them. Significant progresses have been made in the aspects of calculating vertical zoning sequence of primary halos, studying the zoning model and predicting uranium deposit （ore bodies）. Research on calculation method of zoning sequence shows that the generalized contrast value and the concentrated barycenter methods are relatively simple and reasonable. In abroad, application of evaluation technology on primary superimposed tectonic - geochemical halo has gotten important achievement in recent year and greatly reduce workload and expenses on geochemistry exploration. It can be concluded that the method deserves promotionally popularization and application in uranium exploration.

关 键 词：矿床原生晕 指示元素 垂向分带模型 分带序列计算方法 铀矿勘查 

分 类 号：P622.3[天文地球—地质矿产勘探]