相山铀矿床多期石英的天然热释光及EPR特征

本文对采自江西相山铀矿床不同成矿期的石英进行了天然热释光测定，并结合ＸＲＦＳ（Ｘ射线荧光光谱）、ＥＰＲ（电子顺磁共振）等分析数据对所取样品的天然热释光特征进行了研究。研究结果表明：不同成矿期石英的天然热释光在发光强度、发光谱线的峰形特征等方面存在明显差异；导致石英热发光的中心是ＳｉＯ３－３型电子心，电子心的多少与Ｕ、Ｔｈ总量有关；石英热释光强度与石英本身的颜色呈反消长关系；热释光发光谱线上的峰形特

Natural Thermoluminescence and EPR Characteristics of Multistage Quartz from the Xiangshan Uranium Deposit,Jiangxi Province

Natural thermoluminescence determination was made for quartz of different ore- forming stages from the Xiangshan uranium deposit,and natural thermoluminescencecharacteristics of quartz samples were studied in combination with XRFS and EPR data. The results show that quartz samples of different ore-forming stages exhibit notable-differences in such aspects of natural thermoluminescence as its intensity and peak sha-pe characteristics of its spectral line. Quartz thermoluminescence results from the centers whose quantity is bound up with total amounts of uranium and thorium. Thethermoluminescence intensity of quartz is in inverse growth and decline relationshipwith the color of quartz,and the peak shape characteristics of the thermoluminescencespectral line represent the formation temperature of quartz and the thermal events thatthe quartz experienced after its formation.