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多环芳烃化合物在原油及岩石抽提物中普遍存在，有关参数作为热成熟度和沉积环境的标志受到了广泛的关注。通过因子分精，研究了美国6个盆地古生代海相烃源岩抽提物中多环芳烃组成和分布。4个主因子所代表的芳烃组合及其参数与地质作用的关系为：①热力燃烧作用；②沉积环境；③成熟度；④早期成岩作用。探讨了甲基菲成熟度参数的环境意义，因子载荷反映，1-甲基菲和9-甲基菲受沉积环境的影响比较大。因子分析结果表明，影响多环芳烃形成的主要地质因素是高温热力作用、沉积环境、成熟度和早期成岩作用；可以通过多环芳烃的组成特征，认识一些地质因素
Polycyclic aromatic hydrocarbons (PAHs) are common in crude oil and rock extracts and their parameters have received widespread attention as a marker of thermal maturity and sedimentary environment. Through factor subfamily, the composition and distribution of PAHs in Paleozoic marine source rocks in six US basins were studied. The four main factors represent the aromatic hydrocarbon combination and its relationship with the geological parameters: ① thermal combustion; ② sedimentary environment; ③ maturity; ④ early diagenesis. The environmental significance of the maturity parameters of methylphenanthrene was discussed. The factor loading reflected that the influence of 1-methylphenanthrene and 9-methylphenanthrene on the sedimentary environment was relatively large. The result of factor analysis shows that the main geological factors affecting the formation of polycyclic aromatic hydrocarbons are high temperature thermal effect, sedimentary environment, maturity and early diagenesis. Based on the compositional characteristics of PAHs, some geological factors