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| Zircon U-Pb dating and in-situ Hf isotopic analysis of Permian peraluminous granite in the Lhasa terrane, southern Tibet: Implications for Permian collisional orogeny and paleogeography | |
| Zhu, Di-Cheng1; Mo, Xuan-Xue1; Niu, Yaoling2; Zhao, Zhi-Dan1; Wang, Li-Quan3; Pan, Gui-Tang3; Wu, Fu-Yuan4 | |
| 2009-04-20 | |
| 发表期刊 | TECTONOPHYSICS
 |
| ISSN | 0040-1951 |
| 卷号 | 469期号:1-4页码:48-60 |
| 文章类型 | Article |
| 摘要 | The Lhasa terrane has long been interpreted as a simple tectonic block rifted from Gondwana during the late Paleozoic and then drifted northward before finally amalgamating with the Qiangtang terrane during the Early Cretaceous. In this paper we document Permian peraluminous granites near Pikang in the southern margin of the central Lhasa terrane, close to the recently documented Songdo eclogite of Permian age. Zircon SHRIMP and LA-ICPMS U-Pb dating for a Pikang granite sample gives an identical crystallization age of about 263 Ma and a wide age range of inherited zircons (283-2141 Ma). In situ Hf isotopic analyses for 20 zircons of 263 Ma yielded epsilon(Hf(t)) values of -4.5 to +1.9. The Pikang granites have high A/CNK values ( >= 1.08) and high normative corundum (1.3-2.0%), indicative of peraluminous S-type granite. They are characterized by moderately negative Eu anomalies (Eu/Eu*=0.48-0.61), and strongly negative Ba, Nb, Sr, P and Ti anomalies. The granites have high epsilon(Nd(t)) values (-6.4 to -6.0) and low initial (87)Sr/(86)Sr ratios (0.7082-0.7096) relative to melts derived from mature continental crust. These rocks are interpreted to have been generated by mixing between mantle melts and their induced melting of mature crustal materials. We interpret the Pikang peraluminous granite magmatism, the regional angular unconformity between the Middle and the Upper Permian and the eclogite of the same metamorphic age (similar to 262 Ma) from the same geotectonic location to represent different products of a common event in time and space. We tentatively term this common event as syncollisional orogeny, i.e., "the Permian Gangdese Orogeny". We further hypothesize that the orogeny may be genetically associated with the collision between the Lhasa terrane and the northern margin of Australia, following the closure of the Paleo-Tethyan Ocean south of the Lhasa terrane. (C) 2009 Elsevier B.V. All rights reserved. |
| 关键词 | Strongly peraluminous granite Permian syncollisional orogeny Gondwana reconstruction Lhasa terrane Southern Tibet |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.tecto.2009.01.017 |
| 资助者 | Ministry of Land and Resources ; Ministry of Land and Resources ; Chinese NSF(40572051 ; Chinese NSF(40572051 ; Chinese 111 Project(B0701) ; Chinese 111 Project(B0701) ; Qinghai-Tibetan Plateau of the China Geological Survey ; Qinghai-Tibetan Plateau of the China Geological Survey ; Leverhulme Trust ; Leverhulme Trust ; 40503005) ; 40503005) ; Ministry of Land and Resources ; Ministry of Land and Resources ; Chinese NSF(40572051 ; Chinese NSF(40572051 ; Chinese 111 Project(B0701) ; Chinese 111 Project(B0701) ; Qinghai-Tibetan Plateau of the China Geological Survey ; Qinghai-Tibetan Plateau of the China Geological Survey ; Leverhulme Trust ; Leverhulme Trust ; 40503005) ; 40503005) ; Ministry of Land and Resources ; Ministry of Land and Resources ; Chinese NSF(40572051 ; Chinese NSF(40572051 ; Chinese 111 Project(B0701) ; Chinese 111 Project(B0701) ; Qinghai-Tibetan Plateau of the China Geological Survey ; Qinghai-Tibetan Plateau of the China Geological Survey ; Leverhulme Trust ; Leverhulme Trust ; 40503005) ; 40503005) ; Ministry of Land and Resources ; Ministry of Land and Resources ; Chinese NSF(40572051 ; Chinese NSF(40572051 ; Chinese 111 Project(B0701) ; Chinese 111 Project(B0701) ; Qinghai-Tibetan Plateau of the China Geological Survey ; Qinghai-Tibetan Plateau of the China Geological Survey ; Leverhulme Trust ; Leverhulme Trust ; 40503005) ; 40503005) |
| 关键词[WOS] | PLATE TECTONIC MODEL ; LACHLAN FOLD BELT ; VOLCANIC-ROCKS ; LU-HF ; GEOCHEMICAL CHARACTERISTICS ; GANGDESE BATHOLITH ; SOUTHEASTERN TIBET ; EVOLUTION ; CONSTRAINTS ; CHINA |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助者 | Ministry of Land and Resources ; Ministry of Land and Resources ; Chinese NSF(40572051 ; Chinese NSF(40572051 ; Chinese 111 Project(B0701) ; Chinese 111 Project(B0701) ; Qinghai-Tibetan Plateau of the China Geological Survey ; Qinghai-Tibetan Plateau of the China Geological Survey ; Leverhulme Trust ; Leverhulme Trust ; 40503005) ; 40503005) ; Ministry of Land and Resources ; Ministry of Land and Resources ; Chinese NSF(40572051 ; Chinese NSF(40572051 ; Chinese 111 Project(B0701) ; Chinese 111 Project(B0701) ; Qinghai-Tibetan Plateau of the China Geological Survey ; Qinghai-Tibetan Plateau of the China Geological Survey ; Leverhulme Trust ; Leverhulme Trust ; 40503005) ; 40503005) ; Ministry of Land and Resources ; Ministry of Land and Resources ; Chinese NSF(40572051 ; Chinese NSF(40572051 ; Chinese 111 Project(B0701) ; Chinese 111 Project(B0701) ; Qinghai-Tibetan Plateau of the China Geological Survey ; Qinghai-Tibetan Plateau of the China Geological Survey ; Leverhulme Trust ; Leverhulme Trust ; 40503005) ; 40503005) ; Ministry of Land and Resources ; Ministry of Land and Resources ; Chinese NSF(40572051 ; Chinese NSF(40572051 ; Chinese 111 Project(B0701) ; Chinese 111 Project(B0701) ; Qinghai-Tibetan Plateau of the China Geological Survey ; Qinghai-Tibetan Plateau of the China Geological Survey ; Leverhulme Trust ; Leverhulme Trust ; 40503005) ; 40503005) |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:000265990100005 |
| 出版者 | ELSEVIER SCIENCE BV |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.iggcas.ac.cn/handle/132A11/70998 |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhu, Di-Cheng |
| 作者单位 | 1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 2.Univ Durham, Dept Earth Sci, Durham DH1 3LE, England 3.Chengdu Inst Geol & Mineral Resources, Chengdu 610082, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Di-Cheng,Mo, Xuan-Xue,Niu, Yaoling,et al. Zircon U-Pb dating and in-situ Hf isotopic analysis of Permian peraluminous granite in the Lhasa terrane, southern Tibet: Implications for Permian collisional orogeny and paleogeography[J]. TECTONOPHYSICS,2009,469(1-4):48-60. |
| APA | Zhu, Di-Cheng.,Mo, Xuan-Xue.,Niu, Yaoling.,Zhao, Zhi-Dan.,Wang, Li-Quan.,...&Wu, Fu-Yuan.(2009).Zircon U-Pb dating and in-situ Hf isotopic analysis of Permian peraluminous granite in the Lhasa terrane, southern Tibet: Implications for Permian collisional orogeny and paleogeography.TECTONOPHYSICS,469(1-4),48-60. |
| MLA | Zhu, Di-Cheng,et al."Zircon U-Pb dating and in-situ Hf isotopic analysis of Permian peraluminous granite in the Lhasa terrane, southern Tibet: Implications for Permian collisional orogeny and paleogeography".TECTONOPHYSICS 469.1-4(2009):48-60. |
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