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对塔里木盆地库车坳陷三叠系和侏罗系的 11个岩心与露头煤样的地球化学分析表明 ,煤的生物标志物组成随演化程度的增加而有规律的变化 :成熟早期 (镜质组反射率Ro <1 0 % )煤的生物标志物组成反映了沉积环境和生源的特征 ;成熟晚期 (1 10 % 1 30 % )所有煤样的生物标志物组成已基本趋于一致 ,而且和湖相泥岩的生物标志物特征相似 ,该阶段的生物标志物参数不能用来进行油源对比
The geochemical analysis of 11 core and outcrop coal samples from the Triassic and Jurassic series in the Kuqa Depression of the Tarim Basin shows that the biomarker composition of coal changes regularly with increasing degree of evolution: early mature (vitrinite Group reflectivity Ro <10%) The biomarker composition of coal reflects the sedimentary environment and characteristics of the source; the characteristics of the biomarkers of coal in late mature stage (1 10% 130%) were basically the same, and were similar to those of the lacustrine mudstone The characteristics of the organisms are similar, and the biomarker parameters at this stage can not be used for oil source comparison