综合物探方法寻找深部隐伏铀矿床的研究  

EXPLORATION OF DEEP URANIUM DEPOSITS WITH COMBINED GEOPHYSICAL METHODS

作　　者：吴信民[1] 刘庆成[1] 邓居智[1] 吴烈勤 邱国清[1] 

机构地区：[1]东华理工学院探测与信息技术系,江西抚州344000 [2]核工业二九研究所,广东韶关512026

出　　处：《矿物学报》2004年第2期181-184,共4页Acta Mineralogica Sinica

基　　金：核工业地质局资助项目(200115)

摘　　要：氡气测量和土壤天然热释光法(TL)是铀矿找矿勘探中寻找深部隐伏铀矿体的二种地球物理方法。以往的经验表明,如用其中一种方法常有多解性问题。将这二种方法应用于下庄扩大330矿床的研究工作中,共测量了28条剖面,其中三条已知剖面,25条未知剖面,并对一些未知剖面进行了验证。研究结果表明,单一的氡气异常反应了构造在地表的出路位置,而两种方法的重叠异常较准确地反应了深部铀矿体的位置。由于这种综合方法成本较低,找矿效果较好,所以在寻找深部隐伏铀矿床、扩大铀矿床范围的工作中是值得借鉴的方法。Radon survey and soil-natural thermoluminescence (TL) are two geophysical methods of exploring deep uranium deposits. The experiences available showed that there were many solutions if only one of them was used in the field. These two methods were combined with each other to extend the bound of 330 uranium deposit. The twenty-eight profiles were measured in that area, of which, the data of three profiles were known, twenty-five profiles were unknown and one unknown profile was tested and verified. The investigation results showed that the superposed anomalies obtained by these two methods corresponded well to the deep uranium deposits. These two methods can be used together to explore deep uranium deposits and extend the bound of old uranium deposits in consideration of their low cost and better effectiveness.

关 键 词：综合物探 铀矿床 深部隐伏矿床 氡气测量 含矿破碎带 

分 类 号：P631.6[天文地球—地质矿产勘探] P619.14[天文地球—地质学]