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
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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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