中文摘要:对相山铀矿床岩石、矿石中石英热释光的研究发现,热释光强度与其所在的岩性和其中的U、Th、K总量有关。总的趋势是U、Th、K总量增加,热释光强度显著降低;石英热释光辉光曲线上的峰形存在明显差异,岩石中石英热释光辉光曲线的峰形比较复杂,多数曲线呈双峰,且都是中温峰的相对强度比高温峰的相对强度低;矿石和近矿围岩中石英热释光辉光曲线都是双峰,且都是中温峰的相对强度比高温峰的相对强度高。这些差异可作为该矿床的找矿标志。在石英热释光辉光曲线上,任一特定峰温对相邻峰形存在一个叠加复合区间,其范围为特定峰温20℃左右。自岩浆冷却以后,该地区至少经历了五次大的热事件。对应的温度分别为250℃、288℃、310℃、335℃、350℃,表明该矿床是多次热事件叠加的结果。
Abstract:Thermolu-minescence study of quartz from rocks and ores in the Xiangshan uranium deposit intensity and kurtosis of quartz vary remarkably, which can this ore deposit. On the thermolu-minescence curve of quartz, there exists a superimposed compounding interval of about +20℃ for any specific peak relative to the neighboring peak. Since the cooling of magma, the area has at least experienced five no-table thermal events with the corresponding temperature being 250℃, 288℃, 310℃, 335℃ and 350℃, respectively, suggesting that the ore deposit was formed through superimposition of several thermal events.
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王湘云,章邦桐.1996.石英热释光的标型意义——相山铀矿床的研究实例[J].矿床地质,15(2):182~187.1996.Typomorphic significance of Quartz thermolu-minescence in ore prospecting: A case stydy in the Xiangshan uranium deposit[J].Mineral Deposits15(2):182~187
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