AROMATIC HYDROCARBONS IN THE BILUO CO OIL SHALE OF THE SHUANGHU AREA, NORTHERN TIBETAN PLATEAU, AND THEIR IMPLICATIONS

In this paper, the geochemical characteristics of aromatic hydrocarbons contained in bitumen B of oil shale samples from the Biluo Co section of the Shuanghu area, northern Tibet, are considered in detail. In the oil shale samples, 154 aromatic hydrocarbon compositions mainly falling into 12 aromati...

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Bibliographic Details
Published in:Oil shale (Tallinn, Estonia : 1984) Estonia : 1984), 2014-01, Vol.31 (4), p.351-351
Main Authors: Ji, Changjun, Xia, Guoqing, Yi, Haisheng, Wu, Xinhe, Li, Qilai, Mao, Lingling, Fang, Chaogang
Format: Article
Language:English
Subjects:
Abundance
Aromatic compounds
Biodegradation
Biomarkers
Chemical properties
Chromatography
Composition
Diagnostic systems
Fractionation
Geochemistry
Hydrocarbons
Identification and classification
Investigations
Naphthalene
Oil shale
Oil-shales
Phenanthrene
Plants (organisms)
Sediments
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Summary:In this paper, the geochemical characteristics of aromatic hydrocarbons contained in bitumen B of oil shale samples from the Biluo Co section of the Shuanghu area, northern Tibet, are considered in detail. In the oil shale samples, 154 aromatic hydrocarbon compositions mainly falling into 12 aromatic hydrocarbon series were detected. Among them the phenanthrene series predominates, followed by naphthalene series, each of the rest having a low abundance, and the aromatics distribution is represented by typical prepeaks. Various geochemical parameters of these aromatic hydrocarbons are calculated and used to deduce the depositional environment, as well as the origin and thermal maturity of the oil shale organic matter. The composition of organic matter and relative abundance of aromatic hydrocarbons in the Biluo Co oil shale shows that these were mainly derived from lower marine organisms. At the same time, relatively low abundance of 1,2,5-TMNr, 1,2,5,6-TeMNr, pimanthrene, biphenyl and other compounds, which are known to be diagnostic biomarkers of terraneous higher plants, is indicative of some higher plants input too.
ISSN:0208-189X
1736-7492
DOI:10.3176/oil.2014.4.04