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  4. 岩石圈演化国家重点实验室
The timing of crustal thickening constrained by metamorphic zircon U-Pb-Hf and trace element signatures in the Luliang Complex, Trans-North China orogen

文献类型：期刊论文

作者Liu, Chaohui3,4; Zhao, Guochun1,2; Liu, Fulai3,4; Xu, Wang3,4; Zou, Lei5
刊名PRECAMBRIAN RESEARCH
出版日期2021-12-01
卷号367页码:19
关键词North China Craton Paleoproterozoic Zircon Metamorphic growth Timescale
ISSN号0301-9268
DOI10.1016/j.precamres.2021.106440
英文摘要Understanding the onset timing of crustal thickening is fundamental to correctly interpreting the geodynamic evolution of orogenic events, but it is still controversial in the Trans-North China Orogen, North China Craton. Here, we investigate a suite of high-grade rocks from the Luliang Complex by integrating zircon mineragraphy, mineral inclusion, trace element, U-Pb age, and Lu-Hf isotope with garnet trace element data to track zircon formation events and confidently constrain the onset timing of crustal thickening caused by the collision of the Eastern and Western Blocks. Three zircon age groups were identified from the meta-basites and meta-granite: 2.15-2.05 Ga, 1.95-1.92 Ga, and 1.89-1.84 Ga, of which the oldest group represents protolith formation time and the two younger groups are metamorphic zircons. Metamorphic zircons occur close to Zr-bearing minerals ilmenite, hornblende, biotite, orthopyroxene, or chlorite, and have mineral inclusion of plagioclase and biotite, and lower Ti-in-zircon temperatures than the peak metamorphic temperatures, suggesting that they most likely grow during the post-peak stage. They are also characterized by low Th, Nb + Ta, and REE + Y contents, low Th/ U and, high Lu/GdN ratios, indicating the effect of aqueous solutions and absence of garnet on their growth. Therefore, the meta-basites formed at the surface of the upper plate of the subduction zone were transported to ca. 30 km depth by crustal thickening related to the collision of the Eastern and Western Blocks before 1.95-1.92 Ga, much earlier than previously suggested.
WOS关键词HIGH-PRESSURE GRANULITES ; SULU UHP TERRANE ; ULTRAHIGH-TEMPERATURE METAMORPHISM ; SUBDUCTED CONTINENTAL-CRUST ; T-T EVOLUTION ; ZR-IN-RUTILE ; TECTONIC EVOLUTION ; LU-HF ; HENGSHAN COMPLEX ; FUPING COMPLEX
资助项目National Science Foundation of China[42172221] ; National Science Foundation of China[92062214] ; Outlay of Scientific Research Work from CAGS[J2003]
WOS研究方向Geology
语种英语
WOS记录号WOS:000724697800002
出版者ELSEVIER
资助机构National Science Foundation of China ; Outlay of Scientific Research Work from CAGS ; National Science Foundation of China ; Outlay of Scientific Research Work from CAGS ; National Science Foundation of China ; Outlay of Scientific Research Work from CAGS ; National Science Foundation of China ; Outlay of Scientific Research Work from CAGS
源URL[http://ir.iggcas.ac.cn/handle/132A11/103803]  
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Liu, Chaohui
作者单位1.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, North Taibai St 228, Xian 710069, Peoples R China
2.Univ Hong Kong, Dept Earth Sci, Pokfulam Rd, Hong Kong, Peoples R China
3.Minist Nat Resources, Key Lab Deep Earth Dynam, Beijing 100037, Peoples R China
4.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Chaohui,Zhao, Guochun,Liu, Fulai,et al. The timing of crustal thickening constrained by metamorphic zircon U-Pb-Hf and trace element signatures in the Luliang Complex, Trans-North China orogen[J]. PRECAMBRIAN RESEARCH,2021,367:19.
APA Liu, Chaohui,Zhao, Guochun,Liu, Fulai,Xu, Wang,&Zou, Lei.(2021).The timing of crustal thickening constrained by metamorphic zircon U-Pb-Hf and trace element signatures in the Luliang Complex, Trans-North China orogen.PRECAMBRIAN RESEARCH,367,19.
MLA Liu, Chaohui,et al."The timing of crustal thickening constrained by metamorphic zircon U-Pb-Hf and trace element signatures in the Luliang Complex, Trans-North China orogen".PRECAMBRIAN RESEARCH 367(2021):19.

入库方式： OAI收割

来源：地质与地球物理研究所

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