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| Enrichment and distribution of trace elements in Padhrar, Thar and Kotli coals from Pakistan: Comparison to coals from China with an emphasis on the elements distribution | |
| Munir, Mehr Ahmed Mujtaba1,2; Liu, Guijian1,2; Yousaf, Balal1,2; Ali, Muhammad Ubaid1; Abbas, Qumber1 | |
| 2018-02-01 | |
| 发表期刊 | JOURNAL OF GEOCHEMICAL EXPLORATION
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| 卷号 | 185期号:2018页码:153-169 |
| 文章类型 | Article |
| 摘要 | This paper reports the mineralogical and geochemical compositions of the Padhrar (salt-range), Thar (Block Nos. 3 and 5) and Kotli coals. The coal investigated in this study is lignite to sub-bituminous coal, with a broad range of ash yields, volatile matter content and sulfur contents. The mineralogical characteristic, major and trace elements were determined by X-ray diffraction, inductively coupled plasma-atomic emission spectrometry and inductively coupled plasma-mass spectrometry, respectively. The mineral assemblages, sulfur contents, ash yields, and (CaO + MgO + Fe2O3)/(SiO2+ Al2O3) ratio varied significantly in the coal, which is attributed mainly to variation in the depositional environment. Pyritic sulfur is the main form of sulfur in the coals from Padhrar, Kotli and Thar coalfield. The minerals in the studied coals are dominated by quartz, pyrite, kaolinite, illite, along with calcite, feldspar, siderite, montmorillonite and gypsum. Sixteen trace elements, including Li, Be, B, Ti, Sc, V, Cr, Mn, Co, Ni, Cu, Zn, As, Rb, Sr, and Ba and five major elements P, Ca, Al, Fe, and Si, were investigated in this study. The trace element concentrations show variety within the coal seams in the Thar coals and the affinities vary among locations. The concentration of Sr, Ti, Zn, Li, Ni, Cu, Sc, As, Be, and B in the present study are within the range of average Chinese coal values, with the exception of V, Cr, Fe, P, and Rb. On the other hand, compared with world coals, the studied coals have higher contents of B, Cr, Li, Fe, V, Rb, P, and Sc. Based on statistical analyses, most of the trace elements, show an affinity to ash yield and possible association with pyrite, kaolinite, and calcite. |
| 关键词 | Coals Compositional Characteristics Mineral Matter Depositional Behaviors Environmental Geochemistry |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.gexplo.2017.11.009 |
| 关键词[WOS] | LATE PERMIAN COALS ; HUMAN HEALTH-RISKS ; SOUTHWESTERN CHINA ; INNER-MONGOLIA ; MINERAL MATTER ; NORTH CHINA ; TECHNOLOGICAL PROPERTIES ; CANAKKALE-TURKEY ; GUIZHOU PROVINCE ; SHANXI PROVINCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:000419250900013 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5243 |
| 专题 | 黄土与第四纪地质国家重点实验室（2010~） |
| 作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Munir, Mehr Ahmed Mujtaba,Liu, Guijian,Yousaf, Balal,et al. Enrichment and distribution of trace elements in Padhrar, Thar and Kotli coals from Pakistan: Comparison to coals from China with an emphasis on the elements distribution[J]. JOURNAL OF GEOCHEMICAL EXPLORATION,2018,185(2018):153-169. |
| APA | Munir, Mehr Ahmed Mujtaba,Liu, Guijian,Yousaf, Balal,Ali, Muhammad Ubaid,&Abbas, Qumber.(2018).Enrichment and distribution of trace elements in Padhrar, Thar and Kotli coals from Pakistan: Comparison to coals from China with an emphasis on the elements distribution.JOURNAL OF GEOCHEMICAL EXPLORATION,185(2018),153-169. |
| MLA | Munir, Mehr Ahmed Mujtaba,et al."Enrichment and distribution of trace elements in Padhrar, Thar and Kotli coals from Pakistan: Comparison to coals from China with an emphasis on the elements distribution".JOURNAL OF GEOCHEMICAL EXPLORATION 185.2018(2018):153-169. |
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| Enrichment and distr（2006KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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