铀矿找矿中氡的迁移机制探讨  

DISCUSSION ON THE RADON MIGRATION MECHANISM IN THE PROSPECTING FOR URANIUM

作　　者：白云生[1] 林玉飞[1] 常桂兰[1] 

机构地区：[1]核工业北京地质研究院

出　　处：《铀矿地质》1995年第4期224-231,共8页Uranium Geology

摘　　要：本文主要介绍铀矿勘查中氡的迁移机制。通过对自行设计的氡迁移模型长达３个月的试验研究（与理论计算值进行比较）和选择一条经深部揭露的地段（多个矿体埋深为已知）进行地表多种氡法测量，证明只用扩散理论是不可能完满解释为什么氡法能够探测到深达二三百米的铀矿体。从广义角度提出了氡的迁移机制主要是“接力传递”作用。This paper mainly introduces the radon migration mechanism in the prospecting for uranium. Through the orientation study on the self-designed model for radon migration as longas 3 months(as compared with the theoretical calculation values)and selecting a deeply explored area(with the burial depth of many ore bodies known)to undertake various radonmeasurements on the surface,it proves that it is impossible to fully interpret why the radontechnique can detect the uranium ore bodies to a depth of 200-300 metres only by means ofthe diffusion theory. The radon migration mechanism mainly due to the action of'relaytransmission'is presented in a broad sense.

关 键 词：铀矿床 找矿 氡 迁移机制 

分 类 号：P618.140.8[天文地球—矿床学]