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本文通过热模拟实验揭示了木质褐煤中综合有机母质与干酪根在热演化过程中形成五环三萜类和８，１４－断藿烷的差异，并探讨了这两类化合物的地球化学意义．综合有机母质生成的五环三萜类数量多、化合物种类也多，干酪根降解生成的数量小、化合物种类也少，８，１４－断藿烷主要由非干酪根物质转化而成，干酪根降解基本上不生成这类化合物。藿烷参数Ｔｓ／Ｔｍ、Ｃ３１αβ２２Ｓ／２２（Ｓ＋Ｒ）、Ｃ３２αβ２２Ｓ／２２（Ｓ＋Ｒ）和８，１４－断藿烷多数Ｃ２７８β（Ｈ）／８α（Ｈ）、Ｃ２８８β（Ｈ）／８α（Ｈ）是良好的热演化指标；藿烯和生物藿烷同时存在或生物藿烷单独存在分别指示未成熟和低成熟。
In this paper, the thermal simulation experiments reveal the differences of the formation of pentacyclic triterpenes and 8,14-linked hopane in the thermal evolution of the synthetic organic parent material and kerogen in lignite, and discuss the geochemical significance of the two types of compounds. Synthetic organic parent material generated pentacyclic triterpenes more, more types of compounds, the kerogen generated a small number of degradation, the type of compound is also less, 8,14-hop hopane is mainly converted from non-kerogen, kerogen Degradation basically does not produce such compounds. The hopane parameters Ts / Tm, C31αβ22S / 22 (S + R), C32αβ22S / 22 (S + R) and C8,14β- Of the thermal evolution indicators; hopoxene and bio-hopane co-exist or bio-hopane alone exist, indicating immature and low maturity.