Multi-stage metasomatism revealed by trace element content and Fe isotopic composition of minerals in peridotite xenoliths from Niutoushan in the Cathaysia Block, South China
文献类型：期刊论文
| 作者 | Zhao, Xinmiao2,3; Li, Zhihan2,4; Jia, Xiliang2,4; Evans, Noreen J.5; Zhang, Zhaofeng1; Zhang, Hongfu6 |
| 刊名 | LITHOS
 |
| 出版日期 | 2021-12-15 |
| 卷号 | 406-407页码:14 |
| ISSN号 | 0024-4937 |
| 关键词 | Fe isotope Lherzolite Melt/rock interaction Lithospheric mantle South China |
| DOI | 10.1016/j.lithos.2021.106506 |
| 英文摘要 | This paper reports petrology, major and trace element content, and Fe isotopic composition of minerals from suite of spinel lherzolites entrained in the Cenozoic Niutoushan basalt from the Cathaysia block, South China. The aim is to constrain the nature and evolution of the lithospheric mantle, as well as the factors controlling the fractionation of Fe isotopes beneath the Cathaysia block, South China. Based on the petrographic features and mineral compositions, the Niutoushan spinel lherzolite can be subdivided into two groups. Group 1 lherzolite has a high olivine Fo content (89.3 to 90.6) and both LREE-depleted and LREE-enriched chondrite-normalized REE patterns in clinopyroxene grains, reflecting variable degrees of partial melt extraction (up to 20%) followed by multistage metasomatic history. The Fe isotopic composition of Group 1 lherzolite minerals shows little variation (delta Fe-57/54 =-0.05 parts per thousand to 0.03 parts per thousand) with an average of 0.00 +/- 0.06 parts per thousand (2SD, n =7), close to the suggested delta Fe-57/54 value of 0.04 +/- 0.04 parts per thousand for the upper mantle, and there is no significant inter-mineral disequilibria. Compared with the Group 1 lherzolite, the Group 2 lherzolite experienced melt-rock interaction with significant enrichment of Fe as evidenced by relatively lower Mg# (84.9 to 88.2) in olivine and pyroxene grains and LREE-enriched REE patterns in clinopyroxene. Importantly, the Group 2 lherzolite exhibits a large range in Fe isotopic compositions, with delta Fe-57/54 ranging from-0.48 parts per thousand to 0.27 parts per thousand, and disequilibrium Fe isotope fractionation is noted between most of coexisting Group 2 minerals (Delta Fe-57/54(Opx-Ol) =-0.16 parts per thousand to 0.25 parts per thousand and Delta Fe-57/54(Cpx-Ol) =-0.16 parts per thousand to 0.30 parts per thousand), reflecting kinetic fractionation during melt-rock interaction. Such processes play an important role in producing inter-mineral Fe isotopic disequilibrium and local Fe isotopic heterogeneity of the subcontinental mantle lithosphere beneath the Cathaysia block, South China, as noted for the subcontinental lithospheric mantle under the North China Craton. |
| WOS关键词 | LITHOSPHERIC MANTLE BENEATH ; OCEANIC UPPER-MANTLE ; MELT PERCOLATION ; GEOCHEMICAL EVIDENCE ; EASTERN CHINA ; OS ISOTOPES ; EVOLUTION ; SPINEL ; ORIGIN ; CLINOPYROXENE |
| 资助项目 | National Science Foundation of China[41973015] ; National Science Foundation of China[42122020] ; National Science Foundation of China[41688103] ; National Science Foundation of China[41873002] ; National Key R&D Program of China[2019YFA0708400] |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000712910100002 |
| 资助机构 | National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103826]  |
| 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 | Zhao, Xinmiao |
| 作者单位 | 1.Chengdu Univ Technol, Coll Earth Sci, Int Ctr Planetary Sci, Chengdu 610059, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Curtin Univ, Sch Earth & Planetary Sci, John de Laeter Ctr, Perth, WA 6945, Australia 6.Zhejiang Univ, Sch Earth & Space Sci, Hangzhou 310027, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Xinmiao,Li, Zhihan,Jia, Xiliang,et al. Multi-stage metasomatism revealed by trace element content and Fe isotopic composition of minerals in peridotite xenoliths from Niutoushan in the Cathaysia Block, South China[J]. LITHOS,2021,406-407:14. |
| APA | Zhao, Xinmiao,Li, Zhihan,Jia, Xiliang,Evans, Noreen J.,Zhang, Zhaofeng,&Zhang, Hongfu.(2021).Multi-stage metasomatism revealed by trace element content and Fe isotopic composition of minerals in peridotite xenoliths from Niutoushan in the Cathaysia Block, South China.LITHOS,406-407,14. |
| MLA | Zhao, Xinmiao,et al."Multi-stage metasomatism revealed by trace element content and Fe isotopic composition of minerals in peridotite xenoliths from Niutoushan in the Cathaysia Block, South China".LITHOS 406-407(2021):14. |
入库方式： OAI收割
来源：地质与地球物理研究所
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