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Early Miocene rapid exhumation in southern Tibet: Insights from P-T-t-D-magmatism path of Yardoi dome

文献类型：期刊论文

作者Wang, Jia-Min1; Wu, Fu-Yuan1,2; Rubatto, Daniela3,4; Liu, Kai5; Zhang, Jin-Jiang5; Liu, Xiao-Chi1
刊名LITHOS
出版日期2018-04-01
卷号304页码:38-56
关键词Gneiss dome Southern Tibet Monazite geochronology P-T-t-D path Crustal shortening
ISSN号0024-4937
DOI10.1016/j.lithos.2018.02.003
文献子类Article
英文摘要Reconstructing the evolution of Gneiss domes within orogenic belts poses challenges because domes can form in a variety of geodynamic settings and by multiple doming mechanisms. For the North Himalayan gneiss domes (NHGD), it is debated whether they formed during shortening, extension or collapse of the plateau, and what is the spatial and temporal relationship of magmatism, metamorphism and deformation. This study investigates the Yardoi dome in southern Tibet using field mapping, petrography, phase equilibria modelling and new monazite ages. The resulting P-T-time-deformation-magmatism path for the first time reveals the spatial and temporal relationship of metamorphism, deformation and magmatism in the Yardoi dome: a) the dome mantle recorded prograde loading to kyanite-grade Barrovian metamorphic conditions of 650 +/- 30 degrees C and 9 +/- 1 kbar (M-2) in the Early Miocene (18-17 Ma); b) the main top-to-the-north deformation fabric (D-2) formed syn- to post-peak-metamorphism; c) the emplacement of leucorgranites related to doming is syn-metamorphism at 19-17 Ma. The link between the detachment shear zone in the Yardoi dome and the South Tibetan detachment system (STDS) is confirmed. By comparing with orogen-scale tectonic processes in the Himalaya, we suggest that north-south extension in a convergent geodynamic setting during Early Miocene accounts for formation of the Yardoi dome. In a wider tectonic context, the Early Miocene rapid exhumation of deep crustal rocks was contemporaneous with the rapid uplift of southern Tibet and the Himalayan orogen. (C) 2018 Elsevier B.V. All rights reserved.
WOS关键词HIMALAYAN GNEISS DOMES ; TECTONIC EVOLUTION ; DETACHMENT SYSTEM ; TETHYAN HIMALAYA ; SOUTHEASTERN TIBET ; METAMORPHIC ROCKS ; CRUSTAL ANATEXIS ; EASTERN HIMALAYA ; NEPAL HIMALAYA ; TECTONOMETAMORPHIC DISCONTINUITIES
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000430029800003
出版者ELSEVIER SCIENCE BV
资助机构National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; 41772058 ; 41772058 ; 41772058 ; 41772058 ; 2016M600126) ; 2016M600126) ; 2016M600126) ; 2016M600126) ; 41130313) ; 41130313) ; 41130313) ; 41130313) ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; 41772058 ; 41772058 ; 41772058 ; 41772058 ; 2016M600126) ; 2016M600126) ; 2016M600126) ; 2016M600126) ; 41130313) ; 41130313) ; 41130313) ; 41130313) ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; 41772058 ; 41772058 ; 41772058 ; 41772058 ; 2016M600126) ; 2016M600126) ; 2016M600126) ; 2016M600126) ; 41130313) ; 41130313) ; 41130313) ; 41130313) ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; National Natural Science Foundation of China(41602054 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Postdoctoral Science Foundation(2015LH0002 ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; China Geological Survey(201306010046) ; 41772058 ; 41772058 ; 41772058 ; 41772058 ; 2016M600126) ; 2016M600126) ; 2016M600126) ; 2016M600126) ; 41130313) ; 41130313) ; 41130313) ; 41130313)
源URL[http://ir.iggcas.ac.cn/handle/132A11/83138]  
专题中国科学院地质与地球物理研究所
通讯作者Wang, Jia-Min
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.Univ Bern, Inst Geol Sci, CH-3012 Bern, Switzerland
4.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia
5.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Jia-Min,Wu, Fu-Yuan,Rubatto, Daniela,et al. Early Miocene rapid exhumation in southern Tibet: Insights from P-T-t-D-magmatism path of Yardoi dome[J]. LITHOS,2018,304:38-56.
APA Wang, Jia-Min,Wu, Fu-Yuan,Rubatto, Daniela,Liu, Kai,Zhang, Jin-Jiang,&Liu, Xiao-Chi.(2018).Early Miocene rapid exhumation in southern Tibet: Insights from P-T-t-D-magmatism path of Yardoi dome.LITHOS,304,38-56.
MLA Wang, Jia-Min,et al."Early Miocene rapid exhumation in southern Tibet: Insights from P-T-t-D-magmatism path of Yardoi dome".LITHOS 304(2018):38-56.

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来源：地质与地球物理研究所

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