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  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 岩石圈演化国家重点实验室
U-Pb ages of Gongga Shan granite, western Sichuan and its implication to the tectonic evolutions of eastern Tibet

文献类型：期刊论文

作者Lee, Yuan-Hsi6; Cook, Kristen L.5,7,8; Tan, Xi-Bin1,2; Chu, Mei-Fei7; Chiu, Han-Yi7; Li, Qui-Li3; Shellnutt, J. Gregory4; Xu, Xi-Wei1
刊名FRONTIERS IN EARTH SCIENCE
出版日期2023-08-14
卷号11页码:17
关键词Gongga Shan granite eastern Tibet magmatism U-Pb dating crustal channel flow
DOI10.3389/feart.2023.1176937
英文摘要The eastern margin of the Tibetan Plateau has given rise to much debate about mechanisms of plateau uplift and evolution and, in particular, the role of the lower crust in crustal thickening. Knowledge of the middle to lower crust conditions is critical for evaluating various models of crustal deformation, but data on crustal evolution through time are lacking. Here, we turn to the Gongga Shan granite, an intrusion along the Xianshuihe fault in easternmost Tibet that directly records local Cenozoic crustal conditions. We present 124 U-Pb samples from the Gongga Shan granite (GSG) that prove that the crust has been stepwise producing partial melt from 56 Ma to 4 Ma. According to the age distribution, the GSG can be separated into four major groups with ages of 4-10 Ma, 12-20 Ma, 25-40 Ma, and 43-56 Ma. Combining the timing information with geophysics and low-temperature thermochronology data, we suggest that events younger than 10 Ma may indicate the onset of recent crustal channel flow in the middle to lower crust. In contrast, the youngest 4 Ma ages indicate the ongoing partial melting of the middle crust. The 12-20 Ma events could be related to an earlier stage of crustal channel flow, consistent with the regional large-scale crustal channel flow in central Tibet.
WOS关键词XIANSHUIHE FAULT ; TRACE-ELEMENT ; CRUSTAL FLOW ; PLATEAU ; ZIRCON ; DEFORMATION ; BENEATH ; CONSTRAINTS ; SUBDUCTION ; ADJACENT
资助项目This project received financial support from the Ministry of Science and Technology, Taiwan, ROC, under Grant MOST 103-2116-M-194-001 and the Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration (IGCEA1518),[IGCEA1518] ; Ministry of Science and Technology, Taiwan, ROC[41302159] ; Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; [MOST 103-2116-M-194-001]
WOS研究方向Geology
语种英语
出版者FRONTIERS MEDIA SA
WOS记录号WOS:001055013500001
资助机构This project received financial support from the Ministry of Science and Technology, Taiwan, ROC, under Grant MOST 103-2116-M-194-001 and the Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration (IGCEA1518), ; This project received financial support from the Ministry of Science and Technology, Taiwan, ROC, under Grant MOST 103-2116-M-194-001 and the Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration (IGCEA1518), ; Ministry of Science and Technology, Taiwan, ROC ; Ministry of Science and Technology, Taiwan, ROC ; Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration ; Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; This project received financial support from the Ministry of Science and Technology, Taiwan, ROC, under Grant MOST 103-2116-M-194-001 and the Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration (IGCEA1518), ; This project received financial support from the Ministry of Science and Technology, Taiwan, ROC, under Grant MOST 103-2116-M-194-001 and the Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration (IGCEA1518), ; Ministry of Science and Technology, Taiwan, ROC ; Ministry of Science and Technology, Taiwan, ROC ; Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration ; Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; This project received financial support from the Ministry of Science and Technology, Taiwan, ROC, under Grant MOST 103-2116-M-194-001 and the Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration (IGCEA1518), ; This project received financial support from the Ministry of Science and Technology, Taiwan, ROC, under Grant MOST 103-2116-M-194-001 and the Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration (IGCEA1518), ; Ministry of Science and Technology, Taiwan, ROC ; Ministry of Science and Technology, Taiwan, ROC ; Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration ; Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; This project received financial support from the Ministry of Science and Technology, Taiwan, ROC, under Grant MOST 103-2116-M-194-001 and the Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration (IGCEA1518), ; This project received financial support from the Ministry of Science and Technology, Taiwan, ROC, under Grant MOST 103-2116-M-194-001 and the Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration (IGCEA1518), ; Ministry of Science and Technology, Taiwan, ROC ; Ministry of Science and Technology, Taiwan, ROC ; Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration ; Special Projects for Basic Research Work of the Institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/111421]  
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Lee, Yuan-Hsi
作者单位1.China Earthquake Adm, Inst Geol, Beijing, Peoples R China
2.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
4.Natl Taiwan Normal Univ, Dept Earth Sci, Taipei, Taiwan
5.Univ Grenoble Alpes, IRD, ISTerre, Grenoble, France
6.Natl Chung Cheng Univ, Dept Earth & Environm Sci, Minxiong, Taiwan
7.Natl Taiwan Univ, Dept Geosci, Taipei, Taiwan
8.GFZ Potsdam, German Res Ctr Geosci, Potsdam, Germany
推荐引用方式
GB/T 7714		 Lee, Yuan-Hsi,Cook, Kristen L.,Tan, Xi-Bin,et al. U-Pb ages of Gongga Shan granite, western Sichuan and its implication to the tectonic evolutions of eastern Tibet[J]. FRONTIERS IN EARTH SCIENCE,2023,11:17.
APA Lee, Yuan-Hsi.,Cook, Kristen L..,Tan, Xi-Bin.,Chu, Mei-Fei.,Chiu, Han-Yi.,...&Xu, Xi-Wei.(2023).U-Pb ages of Gongga Shan granite, western Sichuan and its implication to the tectonic evolutions of eastern Tibet.FRONTIERS IN EARTH SCIENCE,11,17.
MLA Lee, Yuan-Hsi,et al."U-Pb ages of Gongga Shan granite, western Sichuan and its implication to the tectonic evolutions of eastern Tibet".FRONTIERS IN EARTH SCIENCE 11(2023):17.

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来源：地质与地球物理研究所

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