| 晋北中高硫煤中稀土元素的地球化学特征 |
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| 引用本文： | 王文峰,秦勇,宋党育,傅雪海.晋北中高硫煤中稀土元素的地球化学特征[J].地球化学,2002,31(6):564-570. |
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| 作者姓名： | 王文峰 秦勇 宋党育 傅雪海 |
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| 作者单位： | 中国矿业大学资源与地球科学学院,江苏,徐州,221008 |
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| 基金项目： | 中国煤田地质总局重点科学技术项目“中国洁净煤地质研究”(7F0257)部分资助 |
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| 摘 要： | 应用中子活化分析方法，测定了晋北两层中高硫煤中稀土元素的含量。通过对稀土元素的分布模式，相关分析和聚类分析的研究，得出如下认识；成煤环境对稀土元素的含量具有控制作用。但中高硫煤中稀土元素总量会受到沉积期后酸性溶液下渗淋滤作用的影响；同一煤层中各分层的稀土元素应具有基本相同的分布模式，异常的稀土元素分布模式指示了沉积期后地质作用的影响；煤中稀土元素的主要赋存状态为无机相，主要来源为陆源碎屑矿物；煤中与稀土伴生的有害元素有V，P，Mo,Cr,Cu,Mo,Th和Cd等，在加工洗选过程中有洁净潜势。
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| 关 键 词： | 中高硫煤 稀土元素 地球化学 山西 分布模式 聚类分析 地质作用 |
| 文章编号： | 0379-1726(2002)06-0564-07 |
| 修稿时间： | 2002年2月4日 |
Geochemistry of rare earth elements in the middle and high sulfur coals from North Shanxi Province |
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| WANG Wen-feng,QIN Yong,SONG Dang-y u,FU Xue-hai.Geochemistry of rare earth elements in the middle and high sulfur coals from North Shanxi Province[J].Geochimica,2002,31(6):564-570. |
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| Authors: | WANG Wen-feng QIN Yong SONG Dang-y u FU Xue-hai |
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| Abstract: | Contents of rare earth elements(REEs )in two coal seams from North Shanxi Pr ovince,China are determined using instrumental neut ron activation method.Based on the REE distribution patterns,the corre lation analysis and cluster analysis,main conclusions are drawn as follows.The REE contents are mainly controlled by the coal-forming environments,but might be affected by acidic solution leaching after the peat sedimentation.The REE distribution patterns should be nearly same in the sublayers of the sa me coal seam or layer,and the occurrence of the abnormal patterns might indicate the geological effect after the post-sedimentation.The REEs in coals occur mainly in the inorganic p hase,and might be mainly derived fro m the terrigenous detrital minerals.Some harmful elements,such as V,P,Mo,Cr,Cu,Th and Cd might have cleanin g potential during the processing of dressing by washing because they are associated with REE. |
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| Keywords: | the middle and high sulfur coals REE geochemistry Shanxi Province |
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