| 砂岩型铀矿床中SiO2/Al2O3比值与含矿性的关系研究:以库捷尔太和乌库尔其铀矿床为例 |
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| 引用本文： | 王金平,闵茂中,陈跃辉,彭新建.砂岩型铀矿床中SiO2/Al2O3比值与含矿性的关系研究:以库捷尔太和乌库尔其铀矿床为例[J].高校地质学报,2005,11(1):77-84. |
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| 作者姓名： | 王金平 闵茂中 陈跃辉 彭新建 |
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| 作者单位： | 南京大学,地球科学系,成矿作用国家重点实验室,南京,210093;核工业二○三研究所,咸阳,712000;南京大学,地球科学系,成矿作用国家重点实验室,南京,210093;核工业地质局,北京,100013 |
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| 基金项目： | 国家重点基础研究发展规划(2003CB214604);国家自然科学基金(40173031);高校博士点基金(20020284036)资助项目 |
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| 摘 要： | 对库捷尔太和乌库尔其铀矿床进行了详细的层间氧化带的分带研究，在此基础上分析了主要元素Si，Al，Fe在层间氧化带各亚带中的迁移规律。研究表明，被认为稳定元素的So，Al在砂岩层间氧化过程中具有明显的变化规律：Si在氧化带具迁出特征，并随氧化作用的减弱而迁出的份额有规律的减少；而Al的地球化学行为则相反。不同的SiO2／Al2O3比值能够反映层问氧化带的含矿性。
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| 关 键 词： | 砂岩型铀矿 层间氧化带 主要元素 含矿性 |
| 文章编号： | 1006-7493(2005)01-0077-08 |
| 修稿时间： | 2004年3月26日 |
Study the Relationship between SiO2/Al2O3 Ratios and Ore-Bearing Capacity in Interstratified Oxidized Zone:Exemplified by Kujieertai and Wukuerqi Uranium Deposits |
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| WANG Jin-ping,MIN Mao-zhong,CHEN Yue-hui,PENG Xin-jian.Study the Relationship between SiO2/Al2O3 Ratios and Ore-Bearing Capacity in Interstratified Oxidized Zone:Exemplified by Kujieertai and Wukuerqi Uranium Deposits[J].Geological Journal of China Universities,2005,11(1):77-84. |
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| Authors: | WANG Jin-ping MIN Mao-zhong CHEN Yue-hui PENG Xin-jian |
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| Institution: | WANG Jin-ping~ |
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| Abstract: | Based on the detailed subzone division for Kujiertai and Wukuerqi uranium deposits, this paper studies the migration regularities of major elements in various subzones of interstratified oxidized zone. Some major elements including SiO_2 and Al_2O_3 appear relatively active during the interstratified oxidation. However, such phenomenon has not been traced enough previously in literature. Si has a migration out behavior and its contents in the host rocks regularly decrease with intensifying oxidation. On the contrary, the Al contents regularly increase with intensifying oxidation. The relationship between Si and Al shows that different SiO_2/Al_2O_3 ratios can indicate if the interstratified oxidized zone is ore-bearing or ore-barren. |
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| Keywords: | Sandstone type uranium deposit interstratified oxidized zone major elements orebearing capacity |
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