| 新疆511铀矿床微量元素富集特征研究 |
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| 引用本文：.2005.Trace element geochemistry of No. 511 uranium ore deposit in Xinjiang[J].Mineral Deposits,24(4):409~415 |
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| 基金项目:（973）国家重点基础研究发展规划项目（2001CB0988） |
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| 中文摘要:通过对砂岩铀矿体及其围岩中的Se、Re、Ga、Ge、V、Mo和U等元素的测试与分析，文章系统研究了511砂岩型铀矿床中主要微量元素的富集特征。结果表明：511铀矿床中，Se、Re、Ga、Ge、V、Mo等微量元素存在不同程度的富集，其中Se、Re、Ga的富集达到综合利用工业品位；微量元素空间分布受层间氧化带控制且具有规律性，沿层间氧化作用方向，依次出现Se_Re(+Ge)_Mo_V 等分带；Re与U具有较好的相关性，Se、Re元素对砂岩铀矿找矿具有重要指示意义。511铀矿床是一个与层间氧化带有关的多元素聚集的复合矿床。 |
| 中文关键词:地球化学 微量元素 铀矿 富集特征 砂岩 伊犁盆地 |
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| Trace element geochemistry of No. 511 uranium ore deposit in Xinjiang |
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| Abstract:Systematical studies of main and trace element geochemistry indicate that the No.511 uranium ore deposit in northwestern China is a sandstone type composite ore deposit characterized by multi_element enrichment. Se, Re, Ga, Ge, V and Mo are concentrated to different extents in this deposit, of which Se, Re and Ga are of economic significance. Se-Re (+Ge)-Mo-V and other zones of these trace elements are recognized successively in the development direction of interlayer oxidation. Integration of these trace element data further shows that there exists a positive correlation between U and Re, suggesting that Re and Se may be important indicators of uranium ore deposits. |
| keywords:geochemistry, trace element, uranium ore deposit, enrichment characteristics, sandstone, Yili Basin |
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