典型文献
Geochemistry and Mineralogy of Paleocene Coal from the Padhrar and Darra Adam Khel Coalfields of Pakistan
文献摘要：
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.
文献关键词：
中图分类号：
作者姓名：
Muhammad UMAIR;YANG Ruidong;CHENG Wei;Salman Ahmed KHATTAK
作者机构：
The State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550081,China;College of Resources and Environmental Engineering,Guizhou University,Guiyang 550025,China;Key Laboratory of Karst Georesources and the Environment,Ministry of Education,Guizhou University,Guiyang 550025,China;Mining College of Guizhou University,Guiyang 550025,China;Department of Earth Sciences,University of Haripur,Haripur 22620,KP,Pakistan;The State Key Laboratory of Ore Deposit Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550081,China
文献出处：
引用格式：
[1]Muhammad UMAIR;YANG Ruidong;CHENG Wei;Salman Ahmed KHATTAK-.Geochemistry and Mineralogy of Paleocene Coal from the Padhrar and Darra Adam Khel Coalfields of Pakistan)[J].地质学报（英文版）,2022(06):2056-2073
A类：
Mineralogy,Padhrar,Darra,Khel,Coalfields,coalfields,inertinite,liptinite,SiO2+Al2O3,Fe2O3+CaO+MgO,deltaic
B类：
Geochemistry,Paleocene,from,Adam,Pakistan,resources,which,amount,around,billion,tons,are,located,Central,Salt,Range,Punjab,Province,Khyber,Pakhtunkhwa,respectively,has,not,been,studied,detail,newly,discovered,research,done,due,security,considerations,In,this,study,attempt,made,geochemical,mineralogical,characteristics,coals,order,learn,about,quality,enrichment,mechanism,sedimentary,medium,conditions,potentially,valuable,elements,utilization,ash,moisture,content,volatiles,total,sulfur,vitrinite,reflectance,higher,than,indicating,either,greater,burial,depth,effects,Himalayan,tectonism,dominant,followed,by,major,minerals,including,quartz,clay,calcite,pyrite,trace,Be,Mo,Ta,Nb,Sn,Hf,Pb,Cd,Zr,Ag,Li,concentrated,some,samples,shows,positive,Eu,Gd,anomalies,showing,negative,LREE,TiO2,values,indicate,that,mostly,related,intermediate,igneous,rocks,Sr,Ba,epithermal,marine,water,influence,tidal,flat,forming,environment
AB值：
0.386657
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