【摘 要】
：
With this study,the hydrocarbon generation potential of Miocene aged coals around Arguvan-Par(c)ikan in the northern district of Malatya province was evaluated with the aid of petrological and organic geochemical data.According to organic petrography,coal
【机 构】
：
Department of Geological Engineering,Cumhuriyet University,58140 Sivas,Turkey;Department of Anthropo
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With this study,the hydrocarbon generation potential of Miocene aged coals around Arguvan-Par(c)ikan in the northern district of Malatya province was evaluated with the aid of petrological and organic geochemical data.According to organic petrography,coal quality data,and low thermal maturity,the Arguvan-Par～ikan coals are of high-ash,high-sulfur subbituminous B/C rank.The organic fraction of the coals is mostly comprised of humic group macerals,with small percentages derived from the inertinite and liptinite groups.The mineral matter of the coals is comprised mainly of calcite and clay minerals.The total organic carbon (TOC,wt％) values of the shale and coal samples are between 2.61 wt％ and 43.02 wt％,and the hydrogen index values are between 73 and 229 mg HC/g TOC.Pyrolysis (Tmax,PI),huminite/vitrinite reflectance (Ro,％),and biomarker ratios (CPI,Pr/Ph ratio,Ts/(Ts + Tm) ratio,C32 homohopane ratio (22S/22S + 22R)and C29 ββ/(ββ + αα sterane ratio) indicate that the organic matter of the studied coals is thermally immature.When all these data are taken together,Miocene aged coals around Arguvan are suitable for hydrocarbon generation,especially gas,in terms of organic matter type (Type Ⅲ and Type Ⅱ/Ⅲ mixed),organic matter amount (＞ 10 wt％ TOC),however,low liptinitic macerals (＜ 15％-20％),low hydrogen index (＜ 200 mg HC/g TOC) and low thermal maturity values inhibit the hyrocarbon generation.
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