Evolution ofmantle peridotites from the Luobusa ophiolite in the Tibetan Plateau: Sr-Nd-Hf-Os isotope constraints
文献类型：期刊论文
| 作者 | Zhang, Chang1 ; Liu, Chuan-Zhou1,2,3,4; Liu, Tong1; Wu, Fu-Yuan1,2
|
| 刊名 | LITHOS
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 362页码:12 |
| 关键词 | Mantle peridotites Highly siderophile elements (HSE) Re-Os isotopes Luobusa ophiolite Tibetan Plateau The Neo-Tethys Ocean |
| ISSN号 | 0024-4937 |
| DOI | 10.1016/j.lithos.2020.105477 |
| 英文摘要 | The Luobusa ophiolite cropping out in the Yarlung-Tsangpo Suture (YTS) iswell known for the recovery of super-reducing and ultra-high pressuremineral assemblages. Formation of the Luobusa ophiolite has been linked to the supra-subduction zone (SSZ) settings. This study presents the comprehensive geochemical data of refractory harzburgites, the majority of the Luobusa ophiolite. Both whole rockmajor elements and spinel Cr# values indicate that the Luobusa harzburgites have experienced 10-20% degrees of fractionalmelting froma depletedMORB mantle (DMM) source. Clinopyroxene trace elements suggest that they have experienced variable degrees (as high as 8%) of garnet- facies melting in a dry condition. On the other hand, clinopyroxenes in the Luobusa harzburgites have higher contents of light rare earth elements (LREE) than the values in mantle residues after the degrees of partial melting corresponding to their spinel Cr#. Their clinopyroxenes also show enrichment in some LILE, but no anomalies in HFSE, suggesting they were not metasomatized by subduction-related agents. The Luobusa harzburgites show consistent highly siderophile element (HSE) patterns distinctly different from the forearc peridotites. Whole rock Re-Os isotopes yield Os model ages of 0.61-1.94 Ga that are much older than the formation age of the Luobusa ophiolite (i.e., 128-134Ma), indicating that theywere stemmed from ancient mantle domains within the asthenosphere. Our results argue against that the Luobusa ophiolite was originated froma supra-subduction zone (SSZ) setting. The Luobusa peridotites might have experienced evolutionary histories decoupled from their hosting chromitites. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | ZANGBO SUTURE ZONE ; OCEANIC UPPER-MANTLE ; ABYSSAL PERIDOTITES ; PODIFORM CHROMITITES ; SUPRA-SUBDUCTION ; DEPLETED DOMAINS ; XIGAZE OPHIOLITE ; MELT EXTRACTION ; ARC ; ELEMENTS |
| 资助项目 | Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDB-SSW-DQC032] ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology[MGQNLM201702] ; National Natural Science Foundation of China (NSFC)[41673038] |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000528206200012 |
| 出版者 | ELSEVIER |
| 资助机构 | Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Opening Foundation of the Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96215]  |
| 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, Chuan-Zhou |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Chang,Liu, Chuan-Zhou,Liu, Tong,et al. Evolution ofmantle peridotites from the Luobusa ophiolite in the Tibetan Plateau: Sr-Nd-Hf-Os isotope constraints[J]. LITHOS,2020,362:12. |
| APA | Zhang, Chang,Liu, Chuan-Zhou,Liu, Tong,&Wu, Fu-Yuan.(2020).Evolution ofmantle peridotites from the Luobusa ophiolite in the Tibetan Plateau: Sr-Nd-Hf-Os isotope constraints.LITHOS,362,12. |
| MLA | Zhang, Chang,et al."Evolution ofmantle peridotites from the Luobusa ophiolite in the Tibetan Plateau: Sr-Nd-Hf-Os isotope constraints".LITHOS 362(2020):12. |
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。