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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
Reconstructing crustal thickness evolution from europium anomalies in detrital zircons

文献类型：期刊论文

作者Tang, Ming5,6; Ji, Wei-Qiang1; Chu, Xu2; Wu, Anbin3; Chen, Chen4,6
刊名GEOLOGY
出版日期2021
卷号49期号:1页码:76-80
ISSN号0091-7613
DOI10.1130/G47745.1
英文摘要A new data compilation shows that in intermediate to felsic rocks, zircon Eu/Eu* [chondrite normalized Eu/ (root Sm x Gd)] correlates with whole rock La/Yb, which has been be used to infer crustal thickness. The resultant positive correlation between zircon Eu/Eu* and crustal thickness can be explained by two processes favored during high-pressure differentiation: (1) supression of plagioclase and (2) endogenic oxidation of Eu2+ due to garnet fractionation. Here we calibrate a crustal thickness proxy based on Eu anomalies in zircons. The Eu/Eu*-in-zircon proxy makes it possible to reconstruct crustal thickness evolution in magmatic arcs and orogens using detrital zircons. To evaluate this new proxy, we analyzed detrital zircons separated from modern river sands in the Gangdese belt, southern Tibet. Our results reveal two episodes of crustal thickening (to 60-70 km) since the Cretaceous. The first thickening event occurred at 90-70 Ma, and the second at 50-30 Ma following Eurasia-India collision. These findings are temporally consistent with contractional deformation of sedimentary strata in southern Tibet.
WOS关键词SOUTHERN TIBET ; LHASA TERRANE ; U-PB ; CONSTRAINTS ; VOLCANISM ; GRANITES ; ROCKS ; SR
资助项目National Natural Science Foundation of China[41888101] ; China State Key Laboratory of Lithospheric Evolution[SKL-Z201706] ; U.S. National Science Foundation[EAR-1850832] ; Beijing "Double-First Class" initiative grant[7101302526]
WOS研究方向Geology
语种英语
WOS记录号WOS:000603292000016
出版者GEOLOGICAL SOC AMER, INC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; U.S. National Science Foundation ; U.S. National Science Foundation ; U.S. National Science Foundation ; U.S. National Science Foundation ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; U.S. National Science Foundation ; U.S. National Science Foundation ; U.S. National Science Foundation ; U.S. National Science Foundation ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; U.S. National Science Foundation ; U.S. National Science Foundation ; U.S. National Science Foundation ; U.S. National Science Foundation ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; China State Key Laboratory of Lithospheric Evolution ; U.S. National Science Foundation ; U.S. National Science Foundation ; U.S. National Science Foundation ; U.S. National Science Foundation ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant ; Beijing "Double-First Class" initiative grant
源URL[http://ir.iggcas.ac.cn/handle/132A11/99961]  
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Tang, Ming; Ji, Wei-Qiang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China
2.Univ Toronto, Dept Earth Sci, 22 Russell St, Toronto, ON M5S 3B1, Canada
3.China Univ Petr, Coll Geosci, Beijing, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Peoples R China
5.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
6.Rice Univ, Dept Earth Environm & Planetary Sci, Houston, TX 77005 USA
推荐引用方式
GB/T 7714		 Tang, Ming,Ji, Wei-Qiang,Chu, Xu,et al. Reconstructing crustal thickness evolution from europium anomalies in detrital zircons[J]. GEOLOGY,2021,49(1):76-80.
APA Tang, Ming,Ji, Wei-Qiang,Chu, Xu,Wu, Anbin,&Chen, Chen.(2021).Reconstructing crustal thickness evolution from europium anomalies in detrital zircons.GEOLOGY,49(1),76-80.
MLA Tang, Ming,et al."Reconstructing crustal thickness evolution from europium anomalies in detrital zircons".GEOLOGY 49.1(2021):76-80.

入库方式： OAI收割

来源：地质与地球物理研究所

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