土壤气态水微量元素测量在热液型铀矿勘查中的试验研究  

Experimental study on trace elements measurement in soil gaseous water on hydrothermal uranium deposit

作　　者：吴国东[1] 朱万锋 王勇[1] 宋亮[1] 王东升 WU Guodong;ZHU Wanfeng;WANG Yong;SONG Liang;WANG Dongsheng(CNNC Key Laboratory of Uranium Resource Exploration and Evaluation Technology,Beijing Research Institute of Uranium Geology,Beijing 100029,China)

机构地区：[1]核工业北京地质研究院中核集团铀资源勘查与评价技术重点实验室

出　　处：《世界核地质科学》2019年第4期199-203,共5页World Nuclear Geoscience

摘　　要：在相山铀矿田居隆庵矿床探索性地试验了土壤气态水微量元素测量方法在热液型铀矿勘查中的应用效果。结果表明:相比于土壤地球化学测量,土壤气态水微量元素测量的铀钍含量普遍较低,其平均含量分别为0.83μg/L、0.33μg/L,而对于深部铀矿体的指示效果后者则明显优于前者;土壤气态水微量元素测量对于赋矿断裂和无矿断裂均有一定的指示作用,其测量结果受断裂构造的影响较大。该方法野外操作简单、分析测试便捷,进一步研究和完善此方法对热液型铀矿勘查具有一定意义。An exploratory test was conducted in Julong’an area of Xiangshan uranium ore field to study the application effect of trace elements measurement in soil gaseous water in hydrothermal uranium exploration.The results show that the contents of uranium and thorium in soil gaseous water are generally lower than that measured by soil geochemical survey,and the average contents of uranium and thorium are respectively 0.83μg/L and 0.33μg/L,while trace elements measurement in soil gaseous water is better than soil geochemical survey in indicating deep uranium ore bodies.The method of trace elements measurement in soil gaseous water has a certain indication effect on both mineralized fractures and non-mineralized fractures,and the measurement results are greatly influenced by fracturing structures.Because this method is simple in field operation and convenient in analysis and testing,further study and improvement of this method is of certain significance for the exploration of hydrothermal uranium deposits.

关 键 词：土壤气态水 微量元素 热液型铀矿 地球化学勘查 

分 类 号：P592[天文地球—地球化学]