| 准格尔煤田串草圪旦煤矿5号煤元素地球化学特征 |
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| 引用本文： | 杨宁,唐书恒,张松航,陈云云.准格尔煤田串草圪旦煤矿5号煤元素地球化学特征[J].地学前缘,2016,23(3):74-82. |
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| 作者姓名： | 杨宁 唐书恒 张松航 陈云云 |
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| 作者单位： | 中国地质大学(北京) 能源学院, 北京 100083 |
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| 基金项目： | 国家重点基础研究发展计划“973”项目（2014CB238901）；国家自然科学基金重点项目（41330317） |
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| 摘 要： | 为研究准格尔串草圪旦5号煤微量元素地球化学特征，采用光学显微镜、扫面电子显微镜和X射线衍射（XRD）方法观测煤中矿物组成及形态特征，应用电感耦合等离子质谱（ICP MS）方法测定煤中多种微量元素含量，运用数理统计方法研究微量元素在煤中的赋存特征。结果表明：5号煤中Li、Be、F、U、Hg 5种元素相对富集，含量高于研究区6号煤及中国煤中含量水平。5号煤中Li、F、Ga、Se无机亲和性强，Be、As、U为亲有机元素；Hg与硫含量显著正相关。各元素在煤中主要以有机结合态、无机结合态和硫化物结合态赋存。
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| 关 键 词： | 煤 微量元素 地球化学特征 准格尔煤田 |
| 收稿时间： | 2015-09-17 |
Geochemistry of trace elements in the No.5 Coal from the Chuancaogedan Mine,Junger Coalfield |
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| YANG Ning,TANG Shuheng,ZHANG Songhang,CHEN Yunyun.Geochemistry of trace elements in the No.5 Coal from the Chuancaogedan Mine,Junger Coalfield[J].Earth Science Frontiers,2016,23(3):74-82. |
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| Authors: | YANG Ning TANG Shuheng ZHANG Songhang CHEN Yunyun |
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| Institution: | School of Energy Resources, China University of Geosciences(Beijing), Beijing 100083, China |
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| Abstract: | In order to ascertain the geochemical features of trace elements in the No.5 coal seam at Junger Coalfields Chuancaogedan Coal mine, the mineral composition characteristics were observed through optical microscope, SEM and the X ray Diffraction (XRD) method, the contents of trace elements in coal were determined by Inductively Coupled Plasma Mass Spectrometry (ICP MS), and the occurrence of trace elements were then analyzed based on statistics. The results show that the contents of Li, Be, F, U, Hg in the No.5 coal seam is higher than that in the No.6 coal and Chinese coal. Li, F, Ga, Se are strong inorganic affinity elements, Be, As, U are organic affinity elements, and Hg is of significant positive correlation with sulfur content. Organic combination, inorganic compounds and sulfide bonded forms are the dominant occurrences of these trace elements in the No.5 coal. |
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| Keywords: | coal trace elements geochemical features Junger Coalfield |
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