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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
The timing and duration of high-temperature to ultrahigh-temperature metamorphism constrained by zircon U-Pb-Hf and trace element signatures in the Khondalite Belt, North China Craton

文献类型：期刊论文

作者Jiao, Shujuan3,4; Guo, Jinghui1,3,4; Evans, Noreen J.2,5; Mcdonald, Brad J.2; Liu, Peng3,4; Ouyang, Dongjian3,4; Fitzsimons, Ian C. W.5
刊名CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
出版日期2020-06-20
卷号175期号:7页码:23
关键词Zircon HREE Timescale Petrochronology Khondalite Belt North China Craton
ISSN号0010-7999
DOI10.1007/s00410-020-01706-z
英文摘要Understanding the timing and duration of metamorphism is fundamental to correctly interpreting the geodynamic evolution of orogenic events. Metamorphic constraints are still ambiguous in the Khondalite Belt, North China Craton, so Paleoproterozoic orogenic processes remain unclear. Here, we investigate a suite of high-grade rocks from the Dongpo locality in the Daqingshan Terrane by integrating zircon trace elements and Hf isotopic signatures with U-Pb ages to track zircon formation events and confidently constrain the timing and duration of metamorphism. The application of the Ti-in-zircon thermometer confirms the occurrence of regional HT-UHT metamorphism. Linking zircon HREE patterns and U-Pb ages, in combination with HREE partitioning between zircon and garnet, reveals zircon formation during partial melting to thermal peak stage, and during the post-peak cooling stage. Local reaction control by garnet breakdown has affected some zircons, which show a more radiogenic(176)Hf/Hf-177 ratio (0.28164-0.28174) relative to unaffected grains (0.28128-0.28156). Metamorphic zircon U-Pb ages, combined with results from previous studies, constrain partial melting to UHT conditions with decompression-heating at 1.94-1.90 Ga, post-peak near isobaric cooling at 1.90-1.86 Ga, and the thermal peak very close to ca. 1.90 Ga. Local garnet breakdown occurred during another decompression-heating stage to HT-UHT conditions at 1.86-1.84 Ga, and further cooling occurred until ca. 1.80 Ga. Our work reveals relatively short-lived partial melting (less than 40 million years) in comparison to long-lived cooling stages (nearly 100 million years) in the eastern part of the Khondalite Belt. Two pulses of decompression-heating to HT-UHT conditions in the deep crust could result from repeated asthenospheric upwelling driven by lithospheric extension after subduction-collision. Our study sheds new light on zircon behaviour during HT-UHT metamorphism and elucidates the underlying driver of UHT metamorphism in this part of the Khondalite Belt.
WOS关键词PRESSURE PELITIC GRANULITES ; HIGH-GRADE METAMORPHISM ; MONGOLIA SUTURE ZONE ; RARE-EARTH-ELEMENTS ; LA-ICP-MS ; PHASE-EQUILIBRIA ; LU-HF ; INNER-MONGOLIA ; T PATH ; NAPIER COMPLEX
资助项目National Natural Science Foundation of China (NSFC)[41672189] ; National Natural Science Foundation of China (NSFC)[41890832] ; Youth Innovation Promotion Association CAS[2018089] ; AuScope ; Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS) ; Australian Research Council LIEF program[LE150100013]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000541338200001
出版者SPRINGER
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; AuScope ; AuScope ; Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS) ; Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS) ; Australian Research Council LIEF program ; Australian Research Council LIEF program ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; AuScope ; AuScope ; Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS) ; Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS) ; Australian Research Council LIEF program ; Australian Research Council LIEF program ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; AuScope ; AuScope ; Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS) ; Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS) ; Australian Research Council LIEF program ; Australian Research Council LIEF program ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; AuScope ; AuScope ; Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS) ; Australian Government via the National Collaborative Research Infrastructure Strategy (NCRIS) ; Australian Research Council LIEF program ; Australian Research Council LIEF program
源URL[http://ir.iggcas.ac.cn/handle/132A11/97159]  
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Jiao, Shujuan
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Curtin Univ, John de Laeter Ctr, Perth, WA 6102, Australia
3.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
5.Curtin Univ, Sch Earth & Planetary Sci, Perth, WA 6102, Australia
推荐引用方式
GB/T 7714		 Jiao, Shujuan,Guo, Jinghui,Evans, Noreen J.,et al. The timing and duration of high-temperature to ultrahigh-temperature metamorphism constrained by zircon U-Pb-Hf and trace element signatures in the Khondalite Belt, North China Craton[J]. CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,2020,175(7):23.
APA Jiao, Shujuan.,Guo, Jinghui.,Evans, Noreen J..,Mcdonald, Brad J..,Liu, Peng.,...&Fitzsimons, Ian C. W..(2020).The timing and duration of high-temperature to ultrahigh-temperature metamorphism constrained by zircon U-Pb-Hf and trace element signatures in the Khondalite Belt, North China Craton.CONTRIBUTIONS TO MINERALOGY AND PETROLOGY,175(7),23.
MLA Jiao, Shujuan,et al."The timing and duration of high-temperature to ultrahigh-temperature metamorphism constrained by zircon U-Pb-Hf and trace element signatures in the Khondalite Belt, North China Craton".CONTRIBUTIONS TO MINERALOGY AND PETROLOGY 175.7(2020):23.

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来源：地质与地球物理研究所

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