Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Fatty-acids and their delta C-13 characteristics of seep carbonates from the northern continental slope of Gulf of Mexico | |
Guan HongXiang1,2,3 ; Feng Dong1; Wu NengYou1,2; Chen DuoFu1,2; Roberts, H. H.4; Wu DaiDai2
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| 2010-03-01 | |
| 发表期刊 | CHINESE SCIENCE BULLETIN
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| ISSN | 1001-6538 |
| 卷号 | 55期号:8页码:730-735 |
| 产权排序 | [Guan HongXiang; Feng Dong; Wu NengYou; Chen DuoFu] Chinese Acad Sci, CAS Key Lab Marginal Sea Geol, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China; [Guan HongXiang; Wu NengYou; Chen DuoFu; Wu DaiDai] Chinese Acad Sci, CAS Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China; [Guan HongXiang] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Roberts, H. H.] Louisiana State Univ, Inst Coastal Studies, Baton Rouge, LA 70803 USA |
| 通讯作者 | cdf@gig.ac.cn |
| 合作性质 | 国际 |
| 摘要 | Here we reported the fatty-acids and their delta C-13 values in seep carbonates collected from Green Canyon lease block 185 (GC 185; Sample GC-F) at upper continental slope (water depth:similar to 540 m), and Alaminos Canyon lease block 645 (GC 645; Sample AC-E) at lower continental slope (water depth: similar to 2200 m) of the Gulf of Mexico. More than thirty kinds of fatty acids were detected in both samples. These fatty acids are maximized at C-16. There is a clear even-over-odd carbon number predominance in carbon number range. The fatty acids are mainly composed of n-fatty acids, iso-/anteiso-fatty acids and terminally branched odd-numbered fatty acids (iso/anteiso). The low delta C-13 values (-39.99aEuro degrees to.32.36aEuro degrees) of n-C-12:0, n-C-13:0, i-C-14:0 and n-C-14:0 suggest that they may relate to the chemosynthetic communities at seep sites. The unsaturated fatty acids n-C-18:2 and C-18:1 Delta(9) have the same delta C-13 values, they may originate from the Beggiatoa/Thioploca. Unlike other fatty acids, the terminally branched fatty acids (iso/anteiso) show lower delta C-13 values (as low as -63.95aEuro degrees) suggesting a possible relationship to sulfate reducing bacteria, which is common during anaerobic oxidation of methane at seep sites. |
| 文章类型 | Article |
| 其他摘要 | Here we reported the fatty-acids and their delta C-13 values in seep carbonates collected from Green Canyon lease block 185 (GC 185; Sample GC-F) at upper continental slope (water depth:similar to 540 m), and Alaminos Canyon lease block 645 (GC 645; Sample AC-E) at lower continental slope (water depth: similar to 2200 m) of the Gulf of Mexico. More than thirty kinds of fatty acids were detected in both samples. These fatty acids are maximized at C-16. There is a clear even-over-odd carbon number predominance in carbon number range. The fatty acids are mainly composed of n-fatty acids, iso-/anteiso-fatty acids and terminally branched odd-numbered fatty acids (iso/anteiso). The low delta C-13 values (-39.99aEuro degrees to.32.36aEuro degrees) of n-C-12:0, n-C-13:0, i-C-14:0 and n-C-14:0 suggest that they may relate to the chemosynthetic communities at seep sites. The unsaturated fatty acids n-C-18:2 and C-18:1 Delta(9) have the same delta C-13 values, they may originate from the Beggiatoa/Thioploca. Unlike other fatty acids, the terminally branched fatty acids (iso/anteiso) show lower delta C-13 values (as low as -63.95aEuro degrees) suggesting a possible relationship to sulfate reducing bacteria, which is common during anaerobic oxidation of methane at seep sites. |
| 关键词 | Fatty Acids Carbon Isotope Of Individual Lipid Sulfate Reducing Bacteria Anaerobic Oxidation Of Methane Seep Carbonate Gulf Of Mexico |
| 学科领域 | Science & Technology - Other Topics |
| WOS标题词 | Science & Technology |
| DOI | 10.1007/s11434-009-0478-7 |
| 研究领域[WOS] | Science & Technology - Other Topics |
| URL | 查看原文 |
| 关键词[WOS] | ANAEROBIC METHANE OXIDATION ; GAS HYDRATE ; CHEMOSYNTHETIC COMMUNITIES ; ISOTOPIC EVIDENCE ; MARINE-SEDIMENTS ; LIPID BIOMARKERS ; ORGANIC-MATTER ; COLD SEEPS ; BUSH-HILL ; CHINA SEA |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Basic Research Program of China [2009CB219508]; National Natural Science Foundation of China [40725011, U0733003]; State Key Laboratory of Organic Geochemistry [OGL-200811]; Knowledge Innovation Program of Chinese Academy of Sciences [KGCX2-YW-805] |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000275400900010 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.giec.ac.cn/handle/344007/8511 |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Marginal Sea Geol, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Louisiana State Univ, Inst Coastal Studies, Baton Rouge, LA 70803 USA |
| 推荐引用方式 GB/T 7714 | Guan HongXiang,Feng Dong,Wu NengYou,et al. Fatty-acids and their delta C-13 characteristics of seep carbonates from the northern continental slope of Gulf of Mexico[J]. CHINESE SCIENCE BULLETIN,2010,55(8):730-735. |
| APA | Guan HongXiang,Feng Dong,Wu NengYou,Chen DuoFu,Roberts, H. H.,&Wu DaiDai.(2010).Fatty-acids and their delta C-13 characteristics of seep carbonates from the northern continental slope of Gulf of Mexico.CHINESE SCIENCE BULLETIN,55(8),730-735. |
| MLA | Guan HongXiang,et al."Fatty-acids and their delta C-13 characteristics of seep carbonates from the northern continental slope of Gulf of Mexico".CHINESE SCIENCE BULLETIN 55.8(2010):730-735. |
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