Recycling of ancient sub-oceanic mantle in the Neo-Tethyan asthenosphere: Evidence from major and trace elements and Hf-Os isotopes of the Kop Mountain ophiolite, NE Turkey
文献类型：期刊论文
| 作者 | Liu, Tong1; Wu, Fu-Yuan1,5; Liu, Chuan-Zhou1,2,5; Zhu, Di-Cheng2,3,4; Lin, Yin-Zheng1,5 |
| 刊名 | GEOCHIMICA ET COSMOCHIMICA ACTA
 |
| 出版日期 | 2021-10-15 |
| 卷号 | 311页码:43-58 |
| 关键词 | Kop Mountain ophiolite Mantle peridotite Re-Os isotopes Recycled sub-oceanic mantle Neo-Tethys Ocean Ophiolite conundrum |
| ISSN号 | 0016-7037 |
| DOI | 10.1016/j.gca.2021.08.003 |
| 英文摘要 | The asthenosphere beneath both ancient and modern oceans is highly heterogeneous owing to the recycling of continental, sub-arc, or sub-oceanic mantle domains and subducted oceanic crust and pelagic sediments. The identification and discrimination of those "old" mantle domains are important for understanding of the generation of oceanic crust and the tectonic setting of ophiolites. Here we report geochemical data including Re-Os and Lu-Hf isotopic compositions for mantle peridotites from the Kop Mountain ophiolite in the western Neo-Tethys. These peridotites have whole-rock and mineral compositions comparable with those of abyssal peridotites. Trace element modeling of clinopyroxenes indicates that they were subjected to anhydrous melting, and in this respect the rocks are distinguishable from supra-subduction zone peridotites. Re-Os and Lu-Hf isotopic compositions further indicate that these mantle peridotites underwent ancient (at or before 1.52 Ga) melt extraction and Jurassic melt metasomatism. The Kop Mountain mantle peridotites thus represent ancient sub-oceanic mantle domains recycled into the Neo-Tethyan asthenosphere, undergoing earlier melt depletion before being entrained at the Neo-Tethyan ridge axis. Our results, together with data published for other ophiolites, indicate that the Os isotopic distribution of the Neo-Tethyan ophiolites is identical to that of global abyssal peridotites, suggesting similar melting histories. The Neo-Tethyan asthenosphere was highly heterogeneous, probably with numerous recycled continental, sub-arc, and sub-oceanic mantle inputs. The recycling of ancient mantle in the asthenosphere could be an alternative explanation for the generation of anomalous compositions in both modern and ophiolitic oceanic crusts such as K-rich lavas, enriched mid-ocean ridge basalts, and arc-like basalts. The use of basalt geochemical data to discriminate between tectonic settings (i.e., mid-ocean ridge or supra-subduction zone) of ophiolites should thus be approached with caution. (C) 2021 Elsevier Ltd. All rights reserved. |
| WOS关键词 | HIGHLY SIDEROPHILE ELEMENT ; ABYSSAL PERIDOTITES ; MELT EXTRACTION ; DEPLETED MANTLE ; SUBDUCTION INITIATION ; TETHYAN OPHIOLITES ; RIDGE ; GEOCHEMISTRY ; ORIGIN ; LITHOSPHERE |
| 资助项目 | National Science Fund for Distinguished Young Scholars[42025201] ; Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0801] ; National Natural Science Foundation of China[41802062] ; National Natural Science Foundation of China[91755000] ; Key Research Program of Frontier Sciences from CAS[QYZDB-SSW-DQC032] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000693337600004 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; National Science Fund for Distinguished Young Scholars ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS ; Key Research Program of Frontier Sciences from CAS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102631]  |
| 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 | Liu, Tong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 3.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Tong,Wu, Fu-Yuan,Liu, Chuan-Zhou,et al. Recycling of ancient sub-oceanic mantle in the Neo-Tethyan asthenosphere: Evidence from major and trace elements and Hf-Os isotopes of the Kop Mountain ophiolite, NE Turkey[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2021,311:43-58. |
| APA | Liu, Tong,Wu, Fu-Yuan,Liu, Chuan-Zhou,Zhu, Di-Cheng,&Lin, Yin-Zheng.(2021).Recycling of ancient sub-oceanic mantle in the Neo-Tethyan asthenosphere: Evidence from major and trace elements and Hf-Os isotopes of the Kop Mountain ophiolite, NE Turkey.GEOCHIMICA ET COSMOCHIMICA ACTA,311,43-58. |
| MLA | Liu, Tong,et al."Recycling of ancient sub-oceanic mantle in the Neo-Tethyan asthenosphere: Evidence from major and trace elements and Hf-Os isotopes of the Kop Mountain ophiolite, NE Turkey".GEOCHIMICA ET COSMOCHIMICA ACTA 311(2021):43-58. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。