Abstract The saturated and aromatic hydrocarbon maturity parameters of shale from a salt lake basin were studied. The results show that the most familiar maturity parameters such as tricyclic terpane/hopane, Ts/Tm, sterane 20S/(20S + 20R), ββ/(ββ + αα), MPI1, MPI2, MPI3, PAI-1, and triaromatic steroid (І)/triaromatic steroid (І+ІІ), are not applicable for oil and source rock from saline lakes. The ratio of methyldibenzothiophene increases with depth, and could be an effective parameter of equivalent vitrinite reflectance. Therefore, caution should be taken when evaluating the maturation of oil or/and source rock from a saline sedimentary basin by maturity parameters based on saturated and aromatic hydrocarbons.

中文翻译：

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基于盐湖沉积页岩饱和芳香烃的成熟度参数——以江汉盆地潜江坳陷为例

摘要 研究了盐湖盆地页岩的饱和烃和芳烃成熟度参数。结果表明，最熟悉的成熟度参数如三环萜烷/hopane、Ts/Tm、sterane 20S/(20S + 20R)、ββ/(ββ + αα)、MPI1、MPI2、MPI3、PAI-1和三芳烃(І)/三芳族类固醇 (І+ІІ)，不适用于盐湖的石油和烃源岩。甲基二苯并噻吩的比例随着深度的增加而增加，可能是等效镜质体反射率的有效参数。因此，在通过基于饱和烃和芳烃的成熟度参数评估含盐沉积盆地石油或/和烃源岩的成熟度时应谨慎。