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针对中国新生代第三系广泛分布的咸化湖相盆地的成因及地球化学环境意义 ,比较系统地分析了中国新生界咸化湖相地层生油岩及原油中饱和烃、芳香烃等化合物的地球化学特征 .分析结果表明 :咸化湖地层中有机质的地球化学 (生物标志物组合 )特征 ,既不同于淡水湖相地层中的有机质 ,又与海相地层中的有机质存在明显的差别 .进一步讨论了造成这一现象的地球化学成因及其环境地球化学意义 ,并对其中部分生物标志物及稳定碳同位素组成特征的指相意义作了探讨 .通过生物标志物的组合特征和环境地球化学意义分析 ,初步认为中国新生代第三系咸化湖盆咸化湖泊的形成与海浸作用没有直接的联系 .
Aiming at the genesis and geochemical environmental significance of the broadly distributed salty-lacustrine basin in the Cenozoic Tertiary of China, we systematically analyzed the source rocks of the Cenozoic salinized lake facies and the compounds of saturated hydrocarbons and aromatics in the crude oil Geochemical characteristics.The analysis results show that the characteristics of geochemistry (biomarker combination) of organic matter in the strata of the Saltwater Lake are different from the organic matter in the freshwater lacustrine formation and the organic matter in the marine strata, The geochemical origin of this phenomenon and its environmental geochemical significance are discussed, and some of the significance of some biomarkers and characteristics of stable carbon isotope composition are discussed. Through the combination of biomarkers and environmental geochemical significance It is preliminarily thought that there is no direct relationship between the formation of the saltwater lakes of the third generation salty lake basin and the sea-water immersion in China.