Isotopic composition characteristics and identification of immature and   low-mature oils

doi:10.1007/BF02901173

CORC > 北京大学 > 地球与空间科学学院

	Isotopic composition characteristics and identification of immature and low-mature oils
	Xu, YC ; Shen, P ; Liu, WH ; Guan, P ; Huang, DF
刊名	科学通报英文版
	2001
关键词	immature and low-mature oil isotope associated gas
DOI	10.1007/BF02901173
英文摘要	Isotopic composition characteristics and the significance of immature and low-mature oils are first systematically discussed. The carbon isotopes of the whole oil can be divided into two groups, one has delta C-13 main peak values ranging from -30 parts per thousand to -29 and the other from -27 parts per thousand to -25 parts per thousand, they are related to lacustrine and salt-lake facies or swamp facies, respectively. The carbon isotopic fractionation among different group components is relatively small, usually less than 2 parts per thousand and the biggest difference in fractionation often occurs between saturated and aromatic fractions. Their deltaD values vary between -180 parts per thousand, and -130 parts per thousand. The main peak of their deltaD values concentrates between -170 parts per thousand and -150 parts per thousand, suggesting a domination of lacustrine facies. However, the secondary peak ranges from -160 parts per thousand to -150 parts per thousand, showing a requent salinization of paleo-water bodies. The average delta C-13 values of the methane vary between -50 parts per thousand and -52 parts per thousand, about 10 parts per thousand lighter than those of mature oils. There is a relatively good correlationship between immature and low-mature oils and their source rocks in carbon isotopic compositions of group fractions and monohydrocarbons; moreover, compared with the source rocks of mature oils, that of immature oils is often relatively depleted in C-13, which is one of the characteristics of immature oils, differing from those of mature oils.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000172009000019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Multidisciplinary Sciences; SCI(E); 4; ARTICLE; 22; 1923-1929; 46
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/211076]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Xu, YC,Shen, P,Liu, WH,et al. Isotopic composition characteristics and identification of immature and low-mature oils[J]. 科学通报英文版,2001.
APA	Xu, YC,Shen, P,Liu, WH,Guan, P,&Huang, DF.(2001).Isotopic composition characteristics and identification of immature and low-mature oils.科学通报英文版.
MLA	Xu, YC,et al."Isotopic composition characteristics and identification of immature and low-mature oils".科学通报英文版 (2001).