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题名: Genetic type and maturity of Lower Paleozoic marine hydrocarbon gases in the eastern Tarim Basin
作者: Huang, DF ; Liu, BW ; Wang, TD ; Xu, YC ; Chen, SJ ; Zhao, MJ
刊名: CHEMICAL GEOLOGY
出版日期: 1999
卷号: 162, 期号:1, 页码:65-77
学科分类: Geochemistry & Geophysics
英文摘要: Hydrocarbon compositions and their carbon isotopic data for 94 natural gas samples were combined with the results of thermal simulation experiments to complete a comprehensive study of maturity, genetic types and sources of Lower Paleotoic marine hydrocarbon gases from the eastern Tarim Basin. All of the Lower Paleozoic gases are relatively dry (dryness coefficient > 0.9) and belong to the marine sapropelic type of cracked gases. These gases are characterized by low delta(13)C(1) and low Delta(delta(13)C(2) - delta(13)C(1)) values due to a lack of terrestrial source input, Thermal simulation experiments on Upper Proterozoic to Lower Paleozoic source rocks resulted in a delta(13)C(1)-R-0 regression equation that was used to discriminate the maturities and sources of the natural gases. These natural gases are divided into four genetic types: (1) humic, coal-derived pyrolytic gas; (2) lacustrine sapropelic oil-cracking gas; (3) the marine sapropelic, highly mature oil-cracking gas; and (4) overmature oil-cracking gas. Types (1) and (2) were mainly generated from the Upper Triassic-Middle and Lower Jurassic; types (3) and (4) are mainly generated from the Lower Paleozoic, The data can be used to describe multiple sources and multiple generating stages of natural gas. (C) 1999 Elsevier Science B.V. All rights reserved.
收录类别: SCI
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.lig.ac.cn/handle/132962/2288
Appears in Collections:中国科学院兰州地质研究所_期刊论文

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Huang, DF; Liu, BW; Wang, TD; Xu, YC; Chen, SJ; Zhao, MJ.Genetic type and maturity of Lower Paleozoic marine hydrocarbon gases in the eastern Tarim Basin,CHEMICAL GEOLOGY,1999,162(1):65-77
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文件名: Genetic type and maturity of Lower Paleozoic marine hydrocarbon gases in the eastern Tarim Basin.PDF
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