Unusual 13C depletion in the central carbon of propane in the gases of Longmaxi shale in the Sichuan Basin
文献类型：期刊论文
| 作者 | Shuai, Yanhua3; Xiong, Yongqiang1; Li, Jian3; Wu, Wei2; Hu, Guoyi3 |
| 刊名 | ORGANIC GEOCHEMISTRY
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 184页码:8 |
| 关键词 | Intramolecular isotope Propane Shale gas Isotopic reversal |
| ISSN号 | 0146-6380 |
| DOI | 10.1016/j.orggeochem.2023.104658 |
| 英文摘要 | Abiotically synthesized hydrocarbons are significant in the fields of astrobiology, biosphere, energy, environment, and geology. Abiotic hydrocarbons have never been unambiguously proven to occur in common sediments partly because identifying these components in crustal settings is challenging as they share similar characteristics with hydrocarbons of biotic origin. In this study, we measured intramolecular carbon isotopes of 10 propane samples from Longmaxi shale in the Sichuan Basin, China, and found distinct 13C-depletion in the central position carbon with its 813C decreased by-8.0 to -7.0 parts per thousand (Vienna Pee Dee Belemnite) with respect to terminal carbons. The 813C value of central carbon (H3C-#CH2-CH3) in propane is equal to the second methyl (H3C-#CH3) in ethane possibly resulting from surface catalytic polymerization reactions of methane. Our novel findings indicate that the abiotic synthesis of C2+ hydrocarbons by the surface catalyzed polymerization of methane occurs in commercial gas reservoirs and suggest that this process may be more common than previously thought in methane-rich scenarios on Earth and other planets. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001106706300001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78983]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Shuai, Yanhua |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China 2.Westsouth Oil Field Branch Co, Res Inst, Chengdu, Peoples R China 3.Res Inst Petr Explorat & Dev PetroChina, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shuai, Yanhua,Xiong, Yongqiang,Li, Jian,et al. Unusual 13C depletion in the central carbon of propane in the gases of Longmaxi shale in the Sichuan Basin[J]. ORGANIC GEOCHEMISTRY,2023,184:8. |
| APA | Shuai, Yanhua,Xiong, Yongqiang,Li, Jian,Wu, Wei,&Hu, Guoyi.(2023).Unusual 13C depletion in the central carbon of propane in the gases of Longmaxi shale in the Sichuan Basin.ORGANIC GEOCHEMISTRY,184,8. |
| MLA | Shuai, Yanhua,et al."Unusual 13C depletion in the central carbon of propane in the gases of Longmaxi shale in the Sichuan Basin".ORGANIC GEOCHEMISTRY 184(2023):8. |
入库方式： OAI收割
来源：广州地球化学研究所
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