典型文献
Characteristics of Hydrogen-rich Coals in Southern China:Implications from Organic Geochemistry and Carbon Isotopic Compositions
文献摘要：
The organic geochemical characteristics of hydrogen-rich coal in southern China were investigated synthetically through organic geochemistry and carbon isotope analyses.The results showed that the hydrogen contents of the test samples were more than 5.0％ and the H/C atomic ratios were between 0.76-1.06.Samples were found to be composed mostly of Type Ⅱ-Ⅲ kerogen,consistent with good hydrocarbon-generation potential.The Ro (0.54-1.10％) and Tmax (430-453℃) values imply that the hydrogen-rich coals were in low maturity to mature stages.Stable carbon isotopic ratios(δ13Corg) of the samples used varied from-24.5‰ to-23.4‰,the barkinite content ranging from 13.9％ to 83.3％,indicating a predominantly terrestrial origin with marine influence during coal formation.Some organic geochemical parameters showed corresponding changes as the hydrogen content increased from 5.0％ to 7.0％,however,the source inputs changed significantly when hydrogen content was greater than 6.0％.Terrestrial higher plants gradually become predominant within the coal-forming materials,whereas this dominant position is not apparent at lower hydrogen contents,which is attributable to the strong seawater effect during the hydrogen-rich coal formation process.
文献关键词：
中图分类号：
作者姓名：
LIN Yuhan;WANG Shaoqing;YANG Zongda;ZHAO Yungang;YANG Yi
作者机构：
College of Geoscience and Surveying Engineering,China University of Mining and Technology (Beijing),Beijing 100083,China;Wanbao Mining Ltd.,Beijing 100053,China
文献出处：
引用格式：
[1]LIN Yuhan;WANG Shaoqing;YANG Zongda;ZHAO Yungang;YANG Yi-.Characteristics of Hydrogen-rich Coals in Southern China:Implications from Organic Geochemistry and Carbon Isotopic Compositions)[J].地质学报（英文版）,2022(01):309-320
A类：
Coals,kerogen,barkinite
B类：
Characteristics,Hydrogen,rich,Southern,China,Implications,from,Organic,Geochemistry,Carbon,Isotopic,Compositions,organic,geochemical,characteristics,hydrogen,southern,were,investigated,synthetically,through,geochemistry,isotope,analyses,results,showed,that,contents,test,samples,more,than,atomic,ratios,between,Samples,found,composed,mostly,Type,consistent,good,hydrocarbon,generation,potential,Ro,Tmax,values,imply,coals,maturity,mature,stages,Stable,isotopic,13Corg,used,varied,ranging,indicating,predominantly,terrestrial,origin,marine,influence,during,formation,Some,parameters,corresponding,changes,increased,however,source,inputs,changed,significantly,when,was,greater,Terrestrial,higher,plants,gradually,become,within,forming,materials,whereas,this,not,apparent,lower,which,attributable,strong,seawater,effect,process
AB值：
0.617297
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