关键词: 沉积环境, 芳香烃, 油源对比, 塔里木盆地, 泌阳凹陷

Abstract: Aromatic compounds are classified into three types:higher plant related aromatics saltand gypsum related fused thiophene compounds and sedimentary facies related aromaticsteroids. The shallow water marine carbonate sediments are distinguished by trace amountsof resin and combustion related aromatics and triaromatic steroids. In shauow water sedi-ments alternated by marine carbonates,gypsum and salts are increasing in resin,combustion,and coal related aromatics,tri-aromatic steroids remain to be low,4-methyldibenzothiophenecan be seen in some samples. The aromatics distribution of inland lake facies are the same asshallow water marine carbonate sediments. The lake border area facies is characterized byhigher content of triaromatic steroids,resin and combustion related aromatics,but thiophenecompounds are always low. The inland salt lake sedimentary facies is similar to the inlandlake facies,the difference between these two is only higher content of 4-methyldiben-zothiophene in the former.The aromatics distribution in the matter from volcanic eruption issimilar to the lake border facies,but with higher content of combustion related to aromatics.The regular features of aromatics distribution in the sediments with different sedimentary environments are useful in the research source of crude oil.

Key words: sedimentary environment, aromatic hydrocarbon, correlation of oil-source, Tarim basin, Mi Yank depression