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	Nitrogen isotopic geochemical characteristics of crude oils in several basins of China
	Chen, CP; Mei, BW; Cao, YC
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2005-08-01
卷号	48期号:8页码:1211-1219
关键词	nitrogen isotope crude oil sedimentary environment isotopic fractionation China
ISSN号	1006-9313
DOI	10.1360/03yd0180
通讯作者	Chen, CP(chchuanp2002@etang.com)
英文摘要	Nitrogen isotopic ratios of crude oils with different physical and chemical properties in several basins of China have been measured and their geochemistry has been studied elementally combined with molecular organic geochernistry methods. The data indicate that delta(15)N is in the range of -6 parts per thousand-20 parts per thousand. They vary with the oils in different sedimentary types of basins. The oils forming in the limnic environment have lower delta(15)N with the value of about 1 parts per thousand-5 parts per thousand whereas the oils in saline or semi-saline environment have higher delta(15)N, with most samples being above 10 parts per thousand and some exceeding 17 parts per thousand. The average nitrogen isotopic ratio of oils from the Ordovician formation in the Tarim Basin is the lowest, with most samples having delta(15)N below zero, which reflects possibly the characteristic of the oils originating mainly from the organic matter formed in marine carbonate sedimentary environment. The delta(15)N distribution can be altered by fractionation. It increases obviously because of biodegradation and decreases during hydrocarbon migration. However, the effect of nitrogen isotopic fractionation in the short distance migration is unconspicuous.
收录类别	SCI
WOS关键词	MIGRATION
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000232363900012
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558464
专题	南京土壤研究所
通讯作者	Chen, CP
作者单位	1.Jianghan Petr Univ, Jinzhou 434100, Peoples R China 2.Huazhong Univ Sci & Technol, Wuhan 430047, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Soil Sci, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Chen, CP,Mei, BW,Cao, YC. Nitrogen isotopic geochemical characteristics of crude oils in several basins of China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2005,48(8):1211-1219.
APA	Chen, CP,Mei, BW,&Cao, YC.(2005).Nitrogen isotopic geochemical characteristics of crude oils in several basins of China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,48(8),1211-1219.
MLA	Chen, CP,et al."Nitrogen isotopic geochemical characteristics of crude oils in several basins of China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 48.8(2005):1211-1219.

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