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中国泥盆纪煤主要为角质残植煤，由其独特的煤岩组成特征决定了其独特的有机地球化学特征，特别是分子有机地球化学特征。运用现代分析仪器，首次详细探讨了中国犯企纪煤的烷烃生物标志物组成特征：含丰富的四环二该烷及其它萜类化合物，不合甾族类化合物；着重分析了煤中大量检出的四环二萜烷的生源，指出我国泥企纪煤中检出的四环二萜烷未源于应类植物。
Devonian coal in China is mainly composed of cutinous residual coal, and its unique characteristics of coal and rock determine its unique organic geochemical characteristics, especially the molecular organic geochemical characteristics. The use of modern analytical instruments for the first time discussed in detail the composition of the alkane biomarkers in China’s coal enterprises: rich tetracyclic two the alkane and other terpenoids, non-steroidal compounds; focused on a large number of coal detected Of tetracyclic diterpenes, indicating that the tetracyclic diterpenes detected in our country were not derived from the corresponding plants.