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Evolution ofmantle peridotites from the Luobusa ophiolite in the Tibetan Plateau: Sr-Nd-Hf-Os isotope constraints
Zhang, Chang1; Liu, Chuan-Zhou1,2,3,4; Liu, Tong1; Wu, Fu-Yuan1,4
2020-06-01
Source PublicationLITHOS
ISSN0024-4937
Volume362Pages:12
AbstractThe 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.
KeywordMantle peridotites Highly siderophile elements (HSE) Re-Os isotopes Luobusa ophiolite Tibetan Plateau The Neo-Tethys Ocean
DOI10.1016/j.lithos.2020.105477
Funding OrganizationKey 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)
WOS KeywordZANGBO SUTURE ZONE ; OCEANIC UPPER-MANTLE ; ABYSSAL PERIDOTITES ; PODIFORM CHROMITITES ; SUPRA-SUBDUCTION ; DEPLETED DOMAINS ; XIGAZE OPHIOLITE ; MELT EXTRACTION ; ARC ; ELEMENTS
Language英语
Funding ProjectKey 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]
Funding OrganizationKey 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)
WOS Research AreaGeochemistry & Geophysics ; Mineralogy
WOS SubjectGeochemistry & Geophysics ; Mineralogy
WOS IDWOS:000528206200012
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/96215
Collection岩石圈演化国家重点实验室
Corresponding AuthorLiu, Chuan-Zhou
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationState Key Laboratory of Lithospheric Evolution
Corresponding Author AffilicationState Key Laboratory of Lithospheric Evolution
Recommended Citation
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.
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