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  4. 岩石圈演化国家重点实验室
Diachronous slab-driven Early Cretaceous crustal extension and pulsed magmatic response in southeastern China: Insight from A-type granite and related rocks

文献类型：期刊论文

作者Chen, Jing-Yuan2,3; Yang, Jin-Hui1,3; Zhang, Ji-Heng1; Sun, Jin-Feng3
刊名GONDWANA RESEARCH
出版日期2024-02-01
卷号126页码:22-39
ISSN号1342-937X
关键词Southeastern China Subduction A-type granites Diachronous extension Early Cretaceous
DOI10.1016/j.gr.2023.09.010
英文摘要The Late Mesozoic magmatic belt in southeastern (SE) China, stretching over 1300 km, resulted from southwestward subduction of the paleo-Pacific plate. Our study focuses on the origin of Early Cretaceous syenite and A-type granite in SE China, utilizing zircon U-Pb and Hf isotopic analyses, bulk-rock compositions, and Nd-Hf isotopic compositions. Findings indicate that-142 Ma silica-unsaturated syenites in the southwest form through small degrees of partial melting of the metasoma-tized lithospheric mantle, while-142 Ma A-type granites originate from partial melting of juvenile felsic rocks. The-130 Ma A-type granites in the northeast result from mixing of ancient crustal-derived magma and mantle-derived magma. The southwest and northeast regions display distinct magmatic his-tories, with flare-ups and lulls occurring at different times. These variations suggest diverse extensional and compressional histories. A spatially migrating extensional regime is observed from the southwest (-147 Ma) to the northeast (-120 Ma) of SE China. Magmatic flare-ups in the southwest involve rework-ing juvenile crust, while in the northeast, they modify ancient crust, likely related to paleo-Pacific plate subduction and northeastward slab rollback. Slab subduction rate correlates strongly with observed geo-logical events, indicating diachronous crustal extension, magmatic flare-ups, and lulls during ca. 147- 110 Ma due to northeastward slab rollback and changing subduction rate.(c) 2023 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
WOS关键词ZIRCON U-PB ; MESOZOIC TECTONIC EVOLUTION ; LITHOSPHERIC MANTLE BENEATH ; SR-87/SR-86 ISOTOPE RATIO ; SOUTH CHINA ; SE CHINA ; CONTINENTAL-CRUST ; LU-HF ; GEOCHEMICAL CHARACTERISTICS ; CATHAYSIA BLOCK
资助项目National Natural Science Foundation of China[42073033] ; Chinese Ministry of Science and Technology[2012CB416702] ; Fundamental Research Funds for the Central Universities[300102279102]
WOS研究方向Geology
语种英语
出版者ELSEVIER
WOS记录号WOS:001091586200001
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 ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Chinese Ministry of Science and Technology ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/110696]  
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Chen, Jing-Yuan
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, POB 9825, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Jing-Yuan,Yang, Jin-Hui,Zhang, Ji-Heng,et al. Diachronous slab-driven Early Cretaceous crustal extension and pulsed magmatic response in southeastern China: Insight from A-type granite and related rocks[J]. GONDWANA RESEARCH,2024,126:22-39.
APA Chen, Jing-Yuan,Yang, Jin-Hui,Zhang, Ji-Heng,&Sun, Jin-Feng.(2024).Diachronous slab-driven Early Cretaceous crustal extension and pulsed magmatic response in southeastern China: Insight from A-type granite and related rocks.GONDWANA RESEARCH,126,22-39.
MLA Chen, Jing-Yuan,et al."Diachronous slab-driven Early Cretaceous crustal extension and pulsed magmatic response in southeastern China: Insight from A-type granite and related rocks".GONDWANA RESEARCH 126(2024):22-39.

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来源：地质与地球物理研究所

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