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笔者在对美国South Florida盆地Sunniland原油和Sunniland灰岩油源岩的有机地球化学研究中发现了11个系列的新生物标志化合物——芳基类异戊二烯,它们具有属同系列的特征离子m/z91+n14(n=0—10)。本文报道其中一个系列——2,3,6-三甲基苯基类异戊二烯系列——的分布特征及其有机地球化学意义,提出了两个新有机质热演化成熟度指标(∑HI/∑HII和∑HB/ΣHA),指出该烷基苯系列化合物是指示有机相和沉积有机质热演化成熟度的新生物标志化合物。
In the study of organic geochemistry of Sunniland crude oil and Sunniland limestone source rocks in the South Florida Basin in the United States, 11 new series of biomarker compounds, aryl isoprenoids, have been found, which belong to the same series of characteristic ions m / z 91 + n 14 (n = 0-10). This paper reports the distribution characteristics of one of the series - 2,3,6-trimethylphenyl isoprenoid series - and its significance of organic geochemistry. Two mathematic indices of thermal evolution maturity (ΣHI / ΣHII and ΣHB / ΣHA), indicating that the alkylbenzene series compounds are new biomarker compounds that indicate the thermal evolution maturity of organic and sedimentary organic matter.