α径迹蚀刻方法在砂岩型铀矿研究中的应用——以通辽地区砂岩铀矿为例

Application of Alpha Track Etching in Research of Sandstone-type Uranium Ore——A Case of Study in Sandstone-type Uranium Deposit of Tongliao Area

α径迹蚀刻法应用于铀矿研究,可简便有效地研究岩石、矿石中铀的分布状况、存在形式等,寻找岩石和矿石中颗粒细小的铀矿物,研究与铀矿化相关的蚀变作用等。以通辽地区砂岩型铀矿为例,利用α径迹蚀刻法对矿石中铀的分布形式,铀的富集规律进行研究,根据矿石的α径迹特点得出铀以分散吸附状态和铀矿物两种形式存在,后者通常与碳酸盐化、黄铁矿化相伴随。

The application of alpha track etching in study of uranium ore can conveniently and efficiently research the existing state of uranium in rocks and ores,and find the fine-grained uranium mineral of rocks,and study the alternation with uranium mineralization.To the sandstone-type uranium deposit of Tongliao area as an example,the distribution form of uranium in the rocks and its enrichment regularity are researched by making use of alpha track etching.Then according to the alpha track,it can be known that uranium has two existing forms that are the conditions of dispersing and adsorption and uranium minerals,and the latter always companied by carbonation and pyritized.