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India's hidden inputs to Tibetan orogeny revealed by Hf isotopes of Transhimalayan zircons and host rocks

文献类型：期刊论文

作者Chu, Mei-Fei1,2; Chung, Sun-Lin1; O'Reilly, Suzanne Y.2; Pearson, Norman J.2; Wu, Fu-Yuan3; Li, Xian-Hua3; Liu, Dunyi4; Ji, Jianqing5; Chu, Chiu-Hong1; Lee, Hao-Yang1
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2011-07-15
卷号307期号:3-4页码:479-486
关键词Hf isotopes zircon Transhimalayan batholiths Tibet India-Asia collision
ISSN号0012-821X
DOI10.1016/j.epsl.2011.05.020
文献子类Article
英文摘要To better understand Tibetan orogenesis, which involves complex tectonic processes, here we report the first integrated analysis of Hf isotopes of zircon separates and their host rocks from the Transhimalayan batholiths. The rocks studied include 19 granitoids from different parts of the Gangdese batholith, the largest Transhimalayan intrusive complex, and five postcollisional adakites that occurred as plugs or dikes cutting the Gangdese batholith, in the southern Lhasa terrane, southern Tibet. Published zircon Hf isotope data from other Transhimalayan granitoids and the Linzizong volcanic rocks are also synthesized. The magmatic zircons, crystallizing between ca. 200 and 15 Ma, show depleted mantle-type Hf isotopic characteristics throughout the Mesozoic but shift markedly in the Paleogene. The Elf isotopic shift is interpreted as tracking the evolving progress of Himalayan sediment subduction driven by the approaching Indian continent, and thus signals the initiation of the India-Asia collision that we infer to have occurred by 55 Ma. Our data furthermore indicate that southern Tibet underwent significant crustal thickening during ca. 45 and 30 Ma, before emplacement of the postcollisional adakites that exhibit Hf-Nd isotopic systematics suggesting binary mixing of melts from the juvenile Gangdese mafic crust and incorporated Himalayan sediments in the petrogenesis. (C) 2011 Elsevier B.V. All rights reserved.
WOS关键词U-PB GEOCHRONOLOGY ; SOUTHERN TIBET ; GANGDESE BATHOLITH ; CRUSTAL EVOLUTION ; GRANITIC-ROCKS ; ARC LAVAS ; CONSTRAINTS ; PETROGENESIS ; MAGMATISM ; DEFORMATION
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000293258300025
出版者ELSEVIER SCIENCE BV
资助机构National Science Council, Taiwan, ROC ; National Science Council, Taiwan, ROC ; ARC ; ARC ; Macquarie University ; Macquarie University ; National Science Council, Taiwan, ROC ; National Science Council, Taiwan, ROC ; ARC ; ARC ; Macquarie University ; Macquarie University ; National Science Council, Taiwan, ROC ; National Science Council, Taiwan, ROC ; ARC ; ARC ; Macquarie University ; Macquarie University ; National Science Council, Taiwan, ROC ; National Science Council, Taiwan, ROC ; ARC ; ARC ; Macquarie University ; Macquarie University
源URL[http://ir.iggcas.ac.cn/handle/132A11/74336]  
专题中国科学院地质与地球物理研究所
通讯作者Chung, Sun-Lin
作者单位1.Natl Taiwan Univ, Dept Geosci, Taipei 10617, Taiwan
2.Macquarie Univ, Dept Earth & Planetary Sci, Australian Res Council, Natl Key Ctr Geochem Evolut & Metallogeny Contine, Sydney, NSW 2109, Australia
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
4.Chinese Acad Geol Sci, Inst Geol, Beijing, Peoples R China
5.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714		 Chu, Mei-Fei,Chung, Sun-Lin,O'Reilly, Suzanne Y.,et al. India's hidden inputs to Tibetan orogeny revealed by Hf isotopes of Transhimalayan zircons and host rocks[J]. EARTH AND PLANETARY SCIENCE LETTERS,2011,307(3-4):479-486.
APA Chu, Mei-Fei.,Chung, Sun-Lin.,O'Reilly, Suzanne Y..,Pearson, Norman J..,Wu, Fu-Yuan.,...&Lee, Hao-Yang.(2011).India's hidden inputs to Tibetan orogeny revealed by Hf isotopes of Transhimalayan zircons and host rocks.EARTH AND PLANETARY SCIENCE LETTERS,307(3-4),479-486.
MLA Chu, Mei-Fei,et al."India's hidden inputs to Tibetan orogeny revealed by Hf isotopes of Transhimalayan zircons and host rocks".EARTH AND PLANETARY SCIENCE LETTERS 307.3-4(2011):479-486.

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来源：地质与地球物理研究所

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