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花岗岩中铀的配分以及蚀变过程中铀的再分配研究,对探讨铀的来源及铀矿成因占有重要位置。本工作采用诱发裂变径迹相对比较法测定岩石和矿物中铀含量和空间分布,进而进行铀配分的研究。 1.实验 相对比较法是将铀标准片(已知铀含量的玻璃)与样品在相同条件下进行照射、蚀刻,从待测样品的径迹密度与标准片的径迹密度之比,求出待测样品的铀含量。
The distribution of uranium in granite and the redistribution of uranium during the alteration process play an important role in exploring the origin of uranium and the genesis of uranium deposit. In this work, the uranium content and spatial distribution in rocks and minerals were determined by the relative comparison method of induced fission track, and then the uranium distribution was studied. 1. Experimental relative comparison method is to uranium standard film (known uranium content of glass) and the sample under the same conditions of irradiation, etching, from the test sample track density and the standard track of the track density ratio obtained Uranium content of the sample to be tested.