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对同一种属但生长在不同环境中的两种颗石藻进行了加热模拟实验，探讨其成烃机理。实验发现，颗石藻含有丰富的石油烃类，加热生成的正构烷烃及类异成二烯烷烃分布与含颗石藻烃源岩相似。对颗石藻生烃的热演化规律研究表明，氯仿沥青大量产生及烃类组成发生较大变化的实验温度区间为２００～３００℃，此阶段产物相当于镜质体反射率Ｒ０为０．３５～０．５５的含颗石藻烃的源岩，为低成熟原油生成阶段。本文还研究了颗石藻热模拟产物中植烯类化合物和Ｃ＿（２０－）、Ｃ＿（２２－）类胡萝卜烷等类异成二烯烃随温度的变化，并检测出一种推测为Ｃ＿（２２－）二甲基－烷基环己烷的化合物。
Two kinds of coccoliths, which belong to the same genus but grow in different environments, were heated and simulated to investigate the mechanism of hydrocarbon generation. The experiment found that the coccoliths are rich in petroleum hydrocarbons, heated n-alkanes and isoparathyroid alkanes distribution similar to cesium-containing source rocks. The study on the thermal evolution of cerogenesis shows that the experimental temperature range of large production of chloroform bitumen and great change of hydrocarbon composition is 200 ~ 300 ℃. The product of this stage is equivalent to the vitrinite reflectance R0 of 0.35 ~ 0 Source rock containing ceroid hydrocarbon from .55 is the stage of low-mature crude oil formation. In this paper, we also studied the changes of the thermodynamics of phylloxera and the isoprenoid such as C_ (20 -), C_ (22-) carotenoid with temperature, and detected a kind of presumed C_ ( 22-) dimethyl-alkylcyclohexane.