| 皖北奥陶系稀土元素地化特征及其古岩溶环境标志 |
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| 引用本文： | 李定龙,吴观茂.皖北奥陶系稀土元素地化特征及其古岩溶环境标志[J].煤田地质与勘探,1999,27(4):10-15. |
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| 作者姓名： | 李定龙 吴观茂 |
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| 作者单位： | 淮南工业学院资源与环境工程系 淮南 232001 |
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| 摘 要： | 用等离子光谱仪(ICP)方法,对安徽北部肖县下奥陶统顶部14个岩溶岩样品的稀土元素(15个项目)含量进行了测定分析。在阐明REE总量和配分模式及LREE和HREE、δEu和δCe特征及相互关系的基础上,讨论了稀土地球化学特征与古岩溶发育环境的关系,并初步探讨了岩溶岩溶蚀程度和岩溶岩形成环境的定量识别标准。
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| 关 键 词： | 岩溶岩 稀土元素 古环境 奥陶系 安徽北部 |
| 收稿时间： | 1999-03-02 |
| 修稿时间： | 1999-03-02 |
REE GEOCHEMICAL CHARACTERISTICS AND ITS PALEOKARST ENVIRONMENTAL MARKS OF ORDOVICIAN IN NORTHERN ANHUI |
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| Li Dinglong,Wu Guanmao.REE GEOCHEMICAL CHARACTERISTICS AND ITS PALEOKARST ENVIRONMENTAL MARKS OF ORDOVICIAN IN NORTHERN ANHUI[J].Coal Geology & Exploration,1999,27(4):10-15. |
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| Authors: | Li Dinglong Wu Guanmao |
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| Institution: | Dept. of Resources and Environment Engineering, Huainan Industrial Institute |
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| Abstract: | The REE contents of 14 samples selected from Ordovician carbonate sections in Xiao County,North Anhui have been investigated using ICP.Based on describing REE,the distributed model of REE,characteristics and relations between LREE and HREE Eu and Ce,it is discussed in detail that the relation between REE geochemical characteristics and paleokarst development.The quantitative identification standards of karstic erosion degree and karstification environment are also preliminarily discussed. |
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| Keywords: | karst rock Rare earth elements Paleoenvironment Ordovician system northerm Anhui |
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