Abstract The concentrations and δ34S values of thioaromatic compounds of a suite of oils from several major oil fields in Kurdistan and their corresponding regional Type II-S source rocks have been measured to investigate their source relationship. The oils of three fields (Khabbaz, Jambur, Ajeel) and the bitumen extracted from specific rock formations (Alan, Sargelu, Naokelekan, Chia Gara) showed particularly high abundances of thioaromatics consistent with a carbonate source deposited in a restricted sulfate-rich marine platform setting. The δ34S [V-CDT] values of the major organosulfur compounds (OSCs) in these petroleum samples were measured with a gas chromatograph coupled to a multi-collector inductively coupled plasma mass spectrometer. δ34S values of dibenzothiophenes and methyldibenzothiophenes were consistently in the range −4‰ to −12‰ and −9‰ to −18‰ for the oils and rocks, respectively. Separate groupings of oils and rocks were distinguishable by > 2‰ difference, given an analytical reproducibility of

中文翻译：

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化合物特异性硫同位素在库尔德斯坦石油油源岩对比中的应用

摘要 测量了库尔德斯坦几个主要油田及其相应区域II-S型烃源岩的一套石油的硫代芳烃化合物的浓度和δ34S值，以研究它们的来源关系。三个油田（Khabbaz、Jambur、Ajeel）的石油和从特定岩层（Alan、Sargelu、Naokelekan、Chia Gara）中提取的沥青显示出特别高丰度的硫代芳烃，这与沉积在富含硫酸盐的受限海洋平台中的碳酸盐源一致环境。这些石油样品中主要有机硫化合物 (OSC) 的 δ34S [V-CDT] 值是用气相色谱仪与多接收器电感耦合等离子体质谱仪联用进行测量的。对于石油和岩石，二苯并噻吩和甲基二苯并噻吩的 δ34S 值始终在 -4‰ 至 -12‰ 和 -9‰ 至 -18‰ 的范围内。考虑到分析重现性，可以通过 > 2‰ 的差异区分不同的油类和岩石组