Sr and Nd isotopes of cold seep carbonates from the northern South China sea as proxies for fluid sources
文献类型：期刊论文
| 作者 | Ge, Lu3,4; Chen, Wei4; Zhu, Bi4; Fan, Meitong3,4; Yang, Tao2; Jiang, Shaoyong1 |
| 刊名 | MARINE AND PETROLEUM GEOLOGY
 |
| 出版日期 | 2020-05-01 |
| 卷号 | 115页码:9 |
| 关键词 | Cold seep carbonates South China sea Sr isotopes Nd isotopes Fluid-tracking |
| ISSN号 | 0264-8172 |
| DOI | 10.1016/j.marpetgeo.2020.104284 |
| 通讯作者 | Ge, Lu(gelu211@163.com) ; Zhu, Bi(61744432@qq.com) |
| 英文摘要 | In this study, Sr isotopes combined with Nd isotopes of modern cold seep carbonates were studied to provide reliable proxies for sources and pathways of seep fluids. We presented Sr and Nd isotopes together with stable carbon and oxygen isotope data of cold seep carbonates recovered from the northern continental slope of the South China Sea (SCS). Based on the evidence for negligible detrital contamination and diagenetic alteration, carbonate samples are considered dependable archives which record Sr and Nd isotope signals of the original pore waters from which carbonates have precipitated. Excellent correlation between Sr-87/Sr-86 ratios and 1/Sr observed in carbonate samples indicates two end-members with distinct Sr isotopic signatures, including modern seawater as a major source and a lesser contribution from methane-rich seep fluid driven from a deep source. Besides these two end-members, release of Nd from organic matter and Fe-Mn oxyhydroxide is an additional contribution to pore water Nd. Furthermore, Sr and Nd isotopic compositions suggest water-rock interactions between upward seep fluid and detrital component in sediments, which resulted in the isotopic shift towards pronounced Nd-143 depleted and slightly Sr-87 enriched in the fluid phase. This study provides insight into the knowledge for tracing seepage fluid circulation by Sr-Nd isotope system at modern seep systems. |
| WOS关键词 | RARE-EARTH-ELEMENTS ; AUTHIGENIC CARBONATES ; CONTINENTAL-SLOPE ; HYDROCARBON-SEEP ; CASCADIA MARGIN ; HYDRATE RIDGE ; PORE WATERS ; SEAWATER ; CONSTRAINTS ; SEDIMENTS |
| 资助项目 | Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences[Y909k11001] ; National Natural Science Foundation of China[41873011] ; Fundamental Research Funds for the Central Universities[2017B16214] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000519654400019 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.giec.ac.cn/handle/344007/26546]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Ge, Lu; Zhu, Bi |
| 作者单位 | 1.China Univ Geosci, Fac Earth Resources, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China 2.Nanjing Univ, Dept Earth Sci, State Key Lab Mineral Deposits Res, Nanjing 210093, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.Hohai Univ, Sch Earth Sci & Engn, Inst Earths Crit Zone, Nanjing 210098, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, Lu,Chen, Wei,Zhu, Bi,et al. Sr and Nd isotopes of cold seep carbonates from the northern South China sea as proxies for fluid sources[J]. MARINE AND PETROLEUM GEOLOGY,2020,115:9. |
| APA | Ge, Lu,Chen, Wei,Zhu, Bi,Fan, Meitong,Yang, Tao,&Jiang, Shaoyong.(2020).Sr and Nd isotopes of cold seep carbonates from the northern South China sea as proxies for fluid sources.MARINE AND PETROLEUM GEOLOGY,115,9. |
| MLA | Ge, Lu,et al."Sr and Nd isotopes of cold seep carbonates from the northern South China sea as proxies for fluid sources".MARINE AND PETROLEUM GEOLOGY 115(2020):9. |
入库方式： OAI收割
来源：广州能源研究所
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