Biomarkers, carbon isotopic composition and source rock potentials of Awgu coals, middle Benue trough, Nigeria

doi:10.1016/j.jafrearsci.2012.03.006

	Biomarkers, carbon isotopic composition and source rock potentials of Awgu coals, middle Benue trough, Nigeria
	Adedosu, Taofik A.1; Sonibare, Oluwadayo O.2; Tuo, Jincai 3; Ekundayo, Olusegun 2
刊名	JOURNAL OF AFRICAN EARTH SCIENCES
	2012-05-15
卷号	66-67 页码:13-21
关键词	Hydrocarbon generation Source rock Biomarkers Coal Thermal maturity
ISSN号	1464-343X
DOI	10.1016/j.jafrearsci.2012.03.006
文献子类	Article
英文摘要	Coal and carbonaceous shale samples were collected from two boreholes (BH 94 and BH 120) in Awgu formation of Middle Benue Trough, Nigeria. Source rock potentials of the samples were studied using biomarkers and carbon isotopic composition. Biomarkers in the aliphatic fractions in the samples were studied using Gas Chromatography-Mass Spectrometry (GC-MS). The Carbon isotope analysis of individual n-alkanes in the aliphatic fraction was performed using Gas Chromatography-Combustion-Isotope Ratio Mass Spectrometer (GC-IRMS). The abundance of hopanes, homohopanes (C-31-C-35), and C-29 steranes in the samples indicate terrestrial plant, phytoplankton and cyanobacteria contributions to the organic matter that formed the coal. High (Pr/Ph) ratio (3.04-11.07) and isotopic distribution of individual alkanes showed that the samples consisted of mixed terrestrial/marine organic matter deposited under oxic condition in lacustrine-fluvial/deltaic depositional environment. The maturity parameters derived from biomarker distributions showed that the samples are in the main phase of oil window. (c) 2012 Elsevier Ltd. All rights reserved.
WOS关键词	CRUDE OILS ; PALEOENVIRONMENTAL RECONSTRUCTION ; GEOCHEMICAL INDICATORS ; ORGANIC GEOCHEMISTRY ; TERTIARY OILS ; PARIS BASIN ; SEDIMENTS ; DISTRIBUTIONS ; PETROLEUM ; MATURITY
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000304514100002
资助机构	Third World Academy of Science (TWAS) ; Third World Academy of Science (TWAS) ; Chinese Academy of Science (CAS) ; Chinese Academy of Science (CAS) ; Management of Ladoke Akintola University of Technology Ogbomoso, Nigeria ; Management of Ladoke Akintola University of Technology Ogbomoso, Nigeria ; Third World Academy of Science (TWAS) ; Third World Academy of Science (TWAS) ; Chinese Academy of Science (CAS) ; Chinese Academy of Science (CAS) ; Management of Ladoke Akintola University of Technology Ogbomoso, Nigeria ; Management of Ladoke Akintola University of Technology Ogbomoso, Nigeria ; Third World Academy of Science (TWAS) ; Third World Academy of Science (TWAS) ; Chinese Academy of Science (CAS) ; Chinese Academy of Science (CAS) ; Management of Ladoke Akintola University of Technology Ogbomoso, Nigeria ; Management of Ladoke Akintola University of Technology Ogbomoso, Nigeria ; Third World Academy of Science (TWAS) ; Third World Academy of Science (TWAS) ; Chinese Academy of Science (CAS) ; Chinese Academy of Science (CAS) ; Management of Ladoke Akintola University of Technology Ogbomoso, Nigeria ; Management of Ladoke Akintola University of Technology Ogbomoso, Nigeria
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/84354]
专题	中国科学院地质与地球物理研究所
通讯作者	Adedosu, Taofik A.
作者单位	1.Ladoke Akintola Univ Technol, Dept Chem, Ogbomosho, Nigeria 2.Univ Ibadan, Dept Chem, Petr & Environm Geochem Res Grp, Ibadan, Nigeria 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Adedosu, Taofik A.,Sonibare, Oluwadayo O.,Tuo, Jincai,et al. Biomarkers, carbon isotopic composition and source rock potentials of Awgu coals, middle Benue trough, Nigeria[J]. JOURNAL OF AFRICAN EARTH SCIENCES,2012,66-67:13-21.
APA	Adedosu, Taofik A.,Sonibare, Oluwadayo O.,Tuo, Jincai,&Ekundayo, Olusegun.(2012).Biomarkers, carbon isotopic composition and source rock potentials of Awgu coals, middle Benue trough, Nigeria.JOURNAL OF AFRICAN EARTH SCIENCES,66-67,13-21.
MLA	Adedosu, Taofik A.,et al."Biomarkers, carbon isotopic composition and source rock potentials of Awgu coals, middle Benue trough, Nigeria".JOURNAL OF AFRICAN EARTH SCIENCES 66-67(2012):13-21.