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Two parallel magmatic belts with contrasting isotopic characteristics from southern Tibet to Myanmar: zircon U-Pb and Hf isotopic constraints

文献类型：期刊论文

作者Lin, Te-Hsien1; Mitchell, A. H. G.2; Chung, Sun-Lin1,3; Tan, Xi-Bin4; Tangl, Jui-Ting1; Oo, Thura5; Wu, Fu-Yuan6
刊名JOURNAL OF THE GEOLOGICAL SOCIETY
出版日期2019-05-01
卷号176期号:3页码:574-587
ISSN号0016-7649
DOI10.1144/jgs2018-072
英文摘要Before the India-Asia collision, Neotethyan subduction gave rise to an Andean-type convergent margin on the southern margin of Asia. To investigate the spatial and temporal distribution of the subduction-related magmatism, we undertook a combined determination of zirconU-Pb ages and Hf isotopes of Mesozoic to Paleogene intrusive and volcanic rocks from southern Tibet to Myanmar to characterize the two parallel magmatic belts that have previously been considered separately. One belt extends from the Gangdese Batholith in the Southern Lhasa sub-terrane to the Lohit Batholith, the Sodon Pluton and the Popa-Loimye Arc in the West Burma Block, and the other from the Central Lhasa Plutonic Belt to the Bomi-Chayu Batholith, the Dianxi Batholith and the Shan Scarps Batholith in central Myanmar. The Gangdese belt, as the main arc component, consists typically of I-type granitoids that contain magmatic zircons showing positive epsilon(Hf)(t) values. In contrast, the Central Lhasa Plutonic Belt belt is dominated by S-type granites in which most zircons show negative epsilon(Hf)(t) values suggesting the involvement of older continental crust in their petrogenesis. The distinct geochemical characteristics indicate not only distinct tectonic settings of their genesis but also the diverse nature of the crust forming the exotic continental ribbons amalgamated to Asia.
WOS关键词CENTRAL LHASA SUBTERRANE ; INDIA-EURASIA COLLISION ; GANGDESE BATHOLITH ; WESTERN MYANMAR ; LU-HF ; GEOCHEMICAL CONSTRAINTS ; NEOTETHYAN SUBDUCTION ; MASS-SPECTROMETRY ; CRUST FORMATION ; VOLCANIC-ROCKS
资助项目Ministry of Science and Technology, Taiwan
WOS研究方向Geology
语种英语
WOS记录号WOS:000467147200012
出版者GEOLOGICAL SOC PUBL HOUSE
资助机构Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan ; Ministry of Science and Technology, Taiwan
源URL[http://ir.iggcas.ac.cn/handle/132A11/91495]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Lin, Te-Hsien
作者单位1.Natl Taiwan Univ, Dept Geosci, Taipei 10617, Taiwan
2.20 Dale Close, Oxford OX1 1TU, England
3.Acad Sinica, Inst Earth Sci, Taipei 11529, Taiwan
4.China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China
5.Meikhtila Univ, Dept Geol, Meikhtila, Myanmar
6.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Lin, Te-Hsien,Mitchell, A. H. G.,Chung, Sun-Lin,et al. Two parallel magmatic belts with contrasting isotopic characteristics from southern Tibet to Myanmar: zircon U-Pb and Hf isotopic constraints[J]. JOURNAL OF THE GEOLOGICAL SOCIETY,2019,176(3):574-587.
APA Lin, Te-Hsien.,Mitchell, A. H. G..,Chung, Sun-Lin.,Tan, Xi-Bin.,Tangl, Jui-Ting.,...&Wu, Fu-Yuan.(2019).Two parallel magmatic belts with contrasting isotopic characteristics from southern Tibet to Myanmar: zircon U-Pb and Hf isotopic constraints.JOURNAL OF THE GEOLOGICAL SOCIETY,176(3),574-587.
MLA Lin, Te-Hsien,et al."Two parallel magmatic belts with contrasting isotopic characteristics from southern Tibet to Myanmar: zircon U-Pb and Hf isotopic constraints".JOURNAL OF THE GEOLOGICAL SOCIETY 176.3(2019):574-587.

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来源：地质与地球物理研究所

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