Petrogenesis of highly fractionated I-type granites in the Zayu area of eastern Gangdese,Tibet: Constraints from zircon U-Pb geochronology,geochemistry and Sr-Nd-Hf isotopes |
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| Authors: | DiCheng Zhu XuanXue Mo LiQuan Wang ZhiDan Zhao Yaoling Niu ChangYong Zhou YueHeng Yang |
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| Institution: | ZHU DiCheng1,MO XuanXue1,WANG LiQuan2,ZHAO ZhiDan1,NIU Yaoling3,ZHOU ChangYong2 & YANG YueHeng4 1 State Key Laboratory of Geological Processes , Mineral Resources,, School of Earth Science , Resources,China University of Geosciences,Beijing 100083,China,2 Chengdu Institute of Geology , Mineral Resources,Chengdu 610082,3 Department of Earth Sciences,Durham University,Durham DH1 3LE,UK,4 Institute of Geology , Geophysics,Chinese Academy of Sciences,Beijing 100029 |
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| Abstract: | The Cretaceous granitoids in the middle and northern Gangdese, Tibet are generally interpreted as the products of anatexis of thickened deep crust genetically associated with the Lhasa-Qiangtang collision. This paper reports bulk-rock major element, trace element and Sr-Nd isotopic data, zircon U-Pb age data, and zircon Hf isotopic data on the Zayu pluton in eastern Gangdese, Tibet. These data shed new light on the petrogenesis of the pluton. Our SHRIMP zircon U-Pb age dates, along with LA-ICPMS zircon U-Pb... |
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| Keywords: | zircon U-Pb dating Sr-Nd-Hf isotope highly fractionated I-type granite Zayu pluton eastern Gangdese Tibet |
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