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Occurrences and distributions of branched alkylbenzenes in the Dongsheng sedimentary uranium ore deposits, China

文献类型：期刊论文

作者Tuo, Jincai1; Chen, Ru1,2; Zhang, Mingfeng1; Wang, Xianbin1
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2010-11-09
卷号39期号:6页码:770-785
ISSN号1367-9120
关键词Organic Geochemistry Sedimentary Uranium Ore Deposits Branched Alkylbenzenes Radiolysis
DOI10.1016/j.jseaes.2010.04.034
文献子类Article
英文摘要A series of branched alkylbenzene ranging from C(15) to C(19) with several isomers (2-5) at each carbon number were identified in sediments from the Dongsheng sedimentary uranium ore deposits, Ordos Basin, China. The distribution patterns of the branched alkylbenzenes show significant differences in the sample extracts. The branched alkylbenzenes from organic-rich argillites and coals range from C(15) to C(19) homologues, in which the C(17) or C (18) dominated. On the other hand, the C(19) branched alkylbenzenes dominated in the sandstone/siltstone extracts. The obvious differences of the branched alkylbenzene distributions between the uranium-host sandstones/siltstones and the interbedded barren organic-rich mudstones/coals probably indicate their potential use as biological markers associated with particular depositional environments and/or maturity diagenetic processes. Possible origins for these branched alkylbenzenes include interaction of simple aromatic compounds with, or cyclization and arorriatization reactions of, these linear lipid precursors such as fatty acids, methyl alkanoates, wax esters or alkanes/alkenes that occur naturally in carbonaceous sediments. The possible simple aromatic compounds may include substituted benzenes, functionalized compounds such as phenols that are bound to kerogen at the benzyl position, and phenols that are decomposition products derived from aquatic and terrestrial sources. The distributions of methyl alkanoates and n-alkanes were found to be different between organic-rich mudstone/coal and sandstone/siltstone. From this result, it can be concluded that such differences of the alkylbenzene distributions were mainly resulting from the differences of organic precursors, although maturity effect and radiolytic alteration cannot be completely excluded. (C) 2010 Elsevier Ltd. All rights reserved.
WOS关键词CHROMATOGRAPHY-MASS SPECTROMETRY ; LONG-CHAIN ALKYLBENZENES ; RESISTANT BIO-POLYMER ; ORGANIC GEOCHEMISTRY ; ORDOS BASIN ; CRUDE OILS ; GLOEOCAPSOMORPHA-PRISCA ; AROMATIC-HYDROCARBONS ; BOTRYOCOCCUS-BRAUNII ; THERMAL-STABILITY
WOS研究方向Geology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000286571000024
资助机构China National Natural Science Foundation(40773052) ; China National Natural Science Foundation(40773052) ; China 973 National Key Research Development Program(2003CB214606) ; China 973 National Key Research Development Program(2003CB214606) ; China National Natural Science Foundation(40773052) ; China National Natural Science Foundation(40773052) ; China 973 National Key Research Development Program(2003CB214606) ; China 973 National Key Research Development Program(2003CB214606) ; China National Natural Science Foundation(40773052) ; China National Natural Science Foundation(40773052) ; China 973 National Key Research Development Program(2003CB214606) ; China 973 National Key Research Development Program(2003CB214606) ; China National Natural Science Foundation(40773052) ; China National Natural Science Foundation(40773052) ; China 973 National Key Research Development Program(2003CB214606) ; China 973 National Key Research Development Program(2003CB214606)
源URL[http://ir.iggcas.ac.cn/handle/132A11/73150]  
专题中国科学院地质与地球物理研究所
通讯作者Tuo, Jincai
作者单位1.Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Lanzhou 730000, Gansu, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714		 Tuo, Jincai,Chen, Ru,Zhang, Mingfeng,et al. Occurrences and distributions of branched alkylbenzenes in the Dongsheng sedimentary uranium ore deposits, China[J]. JOURNAL OF ASIAN EARTH SCIENCES,2010,39(6):770-785.
APA Tuo, Jincai,Chen, Ru,Zhang, Mingfeng,&Wang, Xianbin.(2010).Occurrences and distributions of branched alkylbenzenes in the Dongsheng sedimentary uranium ore deposits, China.JOURNAL OF ASIAN EARTH SCIENCES,39(6),770-785.
MLA Tuo, Jincai,et al."Occurrences and distributions of branched alkylbenzenes in the Dongsheng sedimentary uranium ore deposits, China".JOURNAL OF ASIAN EARTH SCIENCES 39.6(2010):770-785.

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来源：地质与地球物理研究所

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