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对库车河剖面三叠侏罗系重要生烃组段进行了有机质生物标志化合物及单体烃同位素研究，研究结果表明，海侵层位与非海侵层位在生物组成和生标特征等方面明显不同，海侵带来了不同的生物体，使有机质类型发生了改变。在生物标志化合物参数方面表现为Ｐｒ／Ｐｈ小于１，甾烷含量丰富，甾烷中Ｃ２７化合物丰度与Ｃ２９相当，三环萜烷有Ｃ２１＜Ｃ２３＞Ｃ２４的分布特点，单体烃同位素表现出富集轻碳同位素的特点。中生代海侵事件对塔北隆起区及库车拗陷油气资源具有重要的意义。
The organic hydrocarbon biomarker and hydrocarbon isotopic study of Triassic-Jurassic important hydrocarbon generating units in the section of the Kuqa River have been carried out. The results show that both the transgressive and non-transgressive layers are located in the biotic composition and biomarker Obviously different aspects of the transgression brought different organisms, the type of organic matter has changed. In the biomarker parameters, the content of Pr / Ph is less than 1, the content of sterane is rich, the abundance of C27 in sterane is comparable to that of C29, and the distribution of C21 C24 in tricyclic terpanes is the same. Enriched with light carbon isotopes. The Mesozoic transgression events are of great significance to the hydrocarbon resources in the Tabei uplift and Kuche depression.