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Chinese Academy of Sciences Institutional Repositories Grid
Geochemistry and Mineralogy of Paleocene Coal from the Padhrar and Darra Adam Khel Coalfields of Pakistan

文献类型:期刊论文

作者Muhammad UMAIR; Ruidong YANG; Wei CHENG; Salman Ahmed KHATTAK
刊名Acta Geologica Sinica (English Edition)
出版日期2022
卷号96页码:2056–2073
关键词Mineral Trace Elements Paleocene Padhrar Coal Darra Adam Khel Coal Pakistan
DOI10.1111/1755-6724.14953
英文摘要

Pakistan is rich in coal resources, which amount to around 186 billion tons. The Paleocene Padhrar and Darra Adam Khel coalfields are located in the Central Salt Range Punjab Province and the Khyber Pakhtunkhwa Province, Pakistan, respectively. Padhrar coal has not been studied in detail and the Darra Adam Khel coalfields are newly-discovered, so no research has been done, due to security considerations. In this study, an attempt has been made to study the geochemical and mineralogical characteristics of the Padhrar and Darra Adam Khel coals, in order to learn about the coal quality, element enrichment mechanism, sedimentary medium conditions and potentially valuable elements for coal utilization. The Padhrar and Darra Adam Khel coals are low to medium ash, low moisture content, high in volatiles and high total sulfur coal. The vitrinite reflectance in Darra Adam Khel coal is higher than in Padhrar coal, indicating either a greater burial depth or the effects of Himalayan tectonism. The vitrinite content is dominant in the Padhrar and Darra Adam Khel coals, followed by inertinite and liptinite, the major minerals including quartz, clay minerals, calcite and pyrite. The trace elements Ni, As, Be Zn, Ge, Mo, Ta, W, Co and Nb, Sn, Hf, Ta, Pb, Th, Cd, In, Be, V, Cr, Zr, Ag, Li, W and Co are concentrated in some of the Padhrar and Darra Adam Khel coal samples, respectively. The Padhrar coal shows positive Ce, Eu and Gd anomalies, with most of the Darra Adam Khel coal showing negative Ce, Eu and positive Gd anomalies with high LREE. The Al2O3/TiO2 values indicate that the sediment source of the Padhrar and Darra Adam Khel coals is mostly related to intermediate igneous rocks. The Sr/Ba, SiO2 + Al2O3, Fe2O3 + CaO + MgO/SiO2 + Al2O3 and high sulfur content in the Padhrar and Darra Adam Khel coals indicate epithermal and marine water influence with a tidal flat, coal-forming environment and a deltaic coal-forming environment, respectively.

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语种英语
源URL[http://ir.gyig.ac.cn/handle/42920512-1/13627]  
专题地球化学研究所_环境地球化学国家重点实验室
地球化学研究所_矿床地球化学国家重点实验室
作者单位1.College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025 China
2.The State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081 China
3.Mining College of Guizhou University, Guiyang, 550025 China
4.Department of Earth Sciences, University of Haripur, Haripur, 22620 KP, Pakistan
5.The State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081 China
6.Key Laboratory of Karst Georesources and the Environment, Ministry of Education, Guizhou University, Guiyang, 550025 China
推荐引用方式
GB/T 7714
Muhammad UMAIR,Ruidong YANG,Wei CHENG,et al. Geochemistry and Mineralogy of Paleocene Coal from the Padhrar and Darra Adam Khel Coalfields of Pakistan[J]. Acta Geologica Sinica (English Edition),2022,96:2056–2073.
APA Muhammad UMAIR,Ruidong YANG,Wei CHENG,&Salman Ahmed KHATTAK.(2022).Geochemistry and Mineralogy of Paleocene Coal from the Padhrar and Darra Adam Khel Coalfields of Pakistan.Acta Geologica Sinica (English Edition),96,2056–2073.
MLA Muhammad UMAIR,et al."Geochemistry and Mineralogy of Paleocene Coal from the Padhrar and Darra Adam Khel Coalfields of Pakistan".Acta Geologica Sinica (English Edition) 96(2022):2056–2073.

入库方式: OAI收割

来源:地球化学研究所

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