Martian hydrothermal fluids recorded in the Sm-Nd isotopic systematics of apatite in regolith breccia meteorites
文献类型：期刊论文
| 作者 | Shang, Sheng1,2; Hui, Hejiu1,2,3; Yang, Yueheng4; Chen, Tianyu1,2 |
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 581页码:12 |
| 关键词 | Martian phosphate Martian regolith breccia Sm-Nd age hydrothermal fluids Mars |
| ISSN号 | 0012-821X |
| DOI | 10.1016/j.epsl.2022.117413 |
| 英文摘要 | The observations of Martian orbiters and rovers have suggested that there were fluids on the surface of early Mars. However, the geochemical properties of those fluids are unclear. The Martian regolith breccia meteorites (MRB), the source materials of which are thought to have formed at 4.4 Ga, may have recorded interactions with fluids on Mars. Here, we have analyzed the in situ Sm-Nd isotopic compositions and trace element contents of apatite in MRB and have obtained a Sm-Nd isochron age of 1490 +/- 480 Ma. This young age indicates that the MRB apatites were altered by fluids and have exchanged trace elements with fluids. The very negative initial epsilon Nd-143, combined with the previously reported positive delta D and delta Cl-37 in the MRB apatites, indicate that Martian fluids originated from a geochemically enriched reservoir in the crust. The large ranges of rare earth element abundance (Sigma REE) and of the chondrite normalized ratio of La and Yb [(La/Yb)(N)] indicate the chemical complexity of the fluids that interacted with the apatites in the MRB. The apatite REE compositions were used to further determine the pH values of Martian fluids equilibrated with the MRB apatites, which varied from similar to 3 to similar to 8. The apatite X-site Cl contents indicate that the Cl contents in Martian fluids in equilibrium with the MRB apatites at 400 degrees C and 1 bar could be up to 1857 ppm, within the range of terrestrial hydrothermal fluids. Combined with previously reported geochemical data from Martian meteorites, our study suggests that fluids may have been present throughout the early geological history of Mars. (C) 2022 Elsevier B.V. All rights reserved. |
| WOS关键词 | NORTHWEST AFRICA 7034 ; RARE-EARTH-ELEMENTS ; LA-ICP-MS ; U-PB ; GEOTHERMAL WATERS ; TRACE-ELEMENT ; RB-SR ; MARS ; MINERALS ; ZIRCON |
| 资助项目 | National Natural Science Foundation of China (NSFC)[42125303] ; B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; China National Space Administration (CNSA)[D020205] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000783030300005 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; China National Space Administration (CNSA) ; China National Space Administration (CNSA) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105104]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Hui, Hejiu |
| 作者单位 | 1.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China 2.Nanjing Univ, Lunar & Planetary Sci Inst, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China 3.CAS Ctr Excellence Comparat Planetol, Hefei 230026, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shang, Sheng,Hui, Hejiu,Yang, Yueheng,et al. Martian hydrothermal fluids recorded in the Sm-Nd isotopic systematics of apatite in regolith breccia meteorites[J]. EARTH AND PLANETARY SCIENCE LETTERS,2022,581:12. |
| APA | Shang, Sheng,Hui, Hejiu,Yang, Yueheng,&Chen, Tianyu.(2022).Martian hydrothermal fluids recorded in the Sm-Nd isotopic systematics of apatite in regolith breccia meteorites.EARTH AND PLANETARY SCIENCE LETTERS,581,12. |
| MLA | Shang, Sheng,et al."Martian hydrothermal fluids recorded in the Sm-Nd isotopic systematics of apatite in regolith breccia meteorites".EARTH AND PLANETARY SCIENCE LETTERS 581(2022):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
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