| 有机质-铀矿床中铀产出形式的电子探针研究 |
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| 引用本文： | 黄裕柱,曲延玲.有机质-铀矿床中铀产出形式的电子探针研究[J].铀矿地质,1988(2). |
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| 作者姓名： | 黄裕柱 曲延玲 |
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| 摘 要： | 在富含有机质的油矿石中,铀的产出形式往往不易查清。笔者以电子探针显微分析技术为主要研究手段,辅以放射性照相、X射线粉晶分析及其它的物理、光学和化学等测试方法,对我国南方5个重要的(含)有机质铀矿床进行研究,确定了各矿床原生工业铀矿物的存在及其产出特征,进一步查明了各矿床中铀的赋存状态。在本文研究的所有矿床的富含有机质铀矿石标本中,电子探针均查出有原生铀矿物沥青铀矿和铀石存在。在各矿床中,细小铀矿物多成集合体分布在有机质条带内或以不规则浸染状产于煤岩中,也有的铀矿物呈胶结物形式产出。此外,还见有铀矿物同黄铁矿或白硒铁矿(FeSe_2)一起充填于古植物细胞腔内的现象。
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| 关 键 词： | 含有机质铀矿床 铀存在形式 电子探针分析 |
A STUDY OF THE FORM OF URANIUM OCCURRENCE IN ORGANIC MATTERBEARING URANIUM DEPOSIT BY ELECTRON-MICROPROBE ANALYSIS |
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| Huang Yuzhu Qu Yanling.A STUDY OF THE FORM OF URANIUM OCCURRENCE IN ORGANIC MATTERBEARING URANIUM DEPOSIT BY ELECTRON-MICROPROBE ANALYSIS[J].Uranium Geology,1988(2). |
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| Authors: | Huang Yuzhu Qu Yanling |
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| Institution: | Huang Yuzhu Qu Yanling |
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| Abstract: | It is genarally difficult to make a thorough invesigation of the form of uranium occurrence in the uranium deposit rich in organic matter. The authors have investigated five important organic matter-bearing uranium deposits in South China by means of electron-microprobe analysis and some supplementary methods such as radiograph, X-ray and other physical, optical and chemical analytical techniques, We have defined the existence and occurring characteristics of primary industrial uranium minerals and further established the form of uranium occurrence in each deposit. The existence of primary uranium minerals-pltchblende and conffinite were determined by electron-microprobe in uranium ore specimens rich in organic matter of all studied deposits. In each deposit, fine uranium minerals are present in aggregates to distribute in organic bands or occur as irregular disseminations in coal rocks, some of which also occur as cements. Besides, uranium minerals are also observed to fill in ancient plant cellular cavity with pyrite and ferroselite. |
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| Keywords: | Organic matter-bearing uranium deposit The form of uranium occurrence Electron-microprobe analysis |
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