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本文采用中子活化分析方法测定了四三四矿床粘土矿中的铀和伴生的稀土元素,测量标准偏差一般在±10％范围内。借助于裂变径迹法对铀在粘土中的存在形式进行了研究。实验结果指出四三四矿床粘土矿中不仅沉积了铀,而且还有大量的稀土元素,铀以吸附或矿物状态存在于粘土矿中。通过对铀和稀土元素分布情况的研究,进一步揭示了矿床的成因和粘土矿的成矿规律。
In this paper, neutron activation analysis method was used to determine the uranium and associated rare earth elements in the clay minerals of the No.434 deposit. The standard deviation of measurement is generally within ± 10%. The existence of uranium in clay was studied by means of fission track method. The experimental results indicate that not only the deposit of uranium but also a large amount of rare earth elements in the clay minerals of the 344 mine deposits exist in the clay minerals in the adsorbed or mineralized state. Through the study on the distribution of uranium and rare earth elements, the genesis of the deposit and the metallogenic regularity of clay ore are further revealed.