裂变径迹法在大面积铀矿普查中的应用研究  

Fission track method for large area exploration of uranium

作　　者：郭士伦[1] 郝秀红[1] 孙盛芬[1] 孟武[1] 邓新绿[1] 卢棋 

机构地区：[1]中国原子能科学研究院,北京102413 [2]华东地勘局

出　　处：《核技术》1992年第4期236-238,共3页Nuclear Techniques

摘　　要：对裂变径迹法在铀矿普查中的适用性进行了系统研究和试验。研究说明,裂变径迹法测定水中铀含量具有高灵敏度和良好的重复性。铀矿普查现场试验说明,裂变径迹法圈定铀异常晕灵敏度高.定位准确,比以前采用的最灵敏的激光荧光法更灵敏。用裂变径迹法在未经普查的区域进行了大面积(560 km^2)铀矿普查试验,在圈定的铀异常晕位置进行了地表揭露工程,发现了工业品位铀矿的存在。裂变径迹法研究也发现了新的铀矿成矿规律。A systematic stuuy and test of feasibility of uranium exploration by the fissiontrack method has been carried out.It is shown that the method has high sensitivity andreproducibility for uranium determination in natural water. The test indicated that thesensitivity and accuracy of the method in mapping uranium-rich halos in test grounds were higher than laser-fluorometry which was regarded as the most sensitive method before. A large area (560km2) exploration of uranium has been carried out and a uranium ore of industrial grade found. Some new rule of uranium-ore formation has been drawn from the study.

关 键 词：裂变径迹法 铀矿 普查 铀异常晕 

分 类 号：P619.140.8[天文地球—矿床学]