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Material records for Mesozoic destruction of the North China Craton by subduction of the Paleo-Pacific slab
Feng, Yazhou1,2; Yang, Jinhui1,2,3; Sun, Jinfeng2; Zhang, Jiheng2
2020-02-25
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
Pages11
AbstractIt is well known that the destruction of the North China Carton (NCC) is closely related to subduction of the Paleo-Pacific slab, but materials recording such subduction has not been identified at the peak time of decratonization. This paper presents data of whole-rock major and trace elements and Sr-Nd-Hf isotopes and zircon U-Pb ages and Hf-O isotopes for Mesozoic volcanic rocks from the Liaodong-Jinan region in the northeastern NCC, in order to trace the subduction-related materials in their source and origin. The Mesozoic volcanic rocks in the Liaodong-Jinan region are mainly composed of two series of rocks, including alkaline basaltic trachyandesite, trachyandesite and trachyte, and subalkaline trachyandesite and andesite. Zircon U-Pb dating yields eruption ages of 129-124 Ma for these rocks. The Early Cretaceous volcanic rocks are all enriched in LILEs (such as Rb, Sr, Ba and Th) and LREEs, depleted in HFSEs (such as Nb, Ta and Ti), indicating that they were originated from mantle sources that had been modified by subducted crustal materials. However, they have relatively heterogeneous and variable isotopic compositions. The alkaline basaltic trachyandesite, trachyandesite and trachyte have enriched whole-rock Sr-Nd-Hf and zircon Hf isotopic compositions and mantle-like delta O-18 values, suggesting that they were derived from low-degree partial melting of an isotopically enriched lithospheric mantle source. In contrast, the subalkaline trachyandesite and andesite have relatively depleted isotopic compositions with zircon epsilon(Hf)(t) values up to +5.2 and heavy zircon O isotopic compositions with delta O-18 values of +8.1 parts per thousand to +9.09 parts per thousand, indicating that they were originated from a lithospheric mantle source that had been metasomatized by melts/fluids derived from the recycled low-T altered oceanic basalt. All of these geochemical features suggest that the Early Cretaceous volcanic rocks in the Liaodong-Jinan region would result from mixing of mafic magmas with different compositions. Such magmas were originated from the enriched lithospheric mantle and the young metasomatized mantle, respectively, with variable extents of enrichment and depletion in trace elements, radiogenic isotopes and O isotopes. Importantly, the identification of the low-T altered oceanic crust component in the origin of Early Cretaceous volcanic rocks by the zircon Hf-O isotopes provides affirmative isotopic evidence and direct material records for Mesozoic subduction of the Paleo-Pacific slab that induced decratonization of the North China Craton.
KeywordNorth China Craton Early Cretaceous volcanic rocks Zircon Hf-O isotopes Subduction of the Paleo-Pacific slab
DOI10.1007/s11430-019-9564-4
Funding OrganizationMinistry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordLITHOSPHERIC MANTLE BENEATH ; SINO-KOREAN CRATON ; ZIRCON U-PB ; LIAODONG PENINSULA ; LU-HF ; GEOCHEMICAL EVIDENCE ; CRUSTAL EVOLUTION ; CONTINENTAL-CRUST ; INTRAPLATE MAGMATISM ; ISOTOPIC CONSTRAINTS
Language英语
Funding ProjectMinistry of Science and Technology of People's Republic of China[2016YFC0600109] ; National Natural Science Foundation of China[41688103]
Funding OrganizationMinistry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; Ministry of Science and Technology of People's Republic of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000516950100001
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95611
Collection岩石圈演化国家重点实验室
Corresponding AuthorYang, Jinhui
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
First Author AffilicationState Key Laboratory of Lithospheric Evolution
Corresponding Author AffilicationState Key Laboratory of Lithospheric Evolution
Recommended Citation
GB/T 7714
Feng, Yazhou,Yang, Jinhui,Sun, Jinfeng,et al. Material records for Mesozoic destruction of the North China Craton by subduction of the Paleo-Pacific slab[J]. SCIENCE CHINA-EARTH SCIENCES,2020:11.
APA Feng, Yazhou,Yang, Jinhui,Sun, Jinfeng,&Zhang, Jiheng.(2020).Material records for Mesozoic destruction of the North China Craton by subduction of the Paleo-Pacific slab.SCIENCE CHINA-EARTH SCIENCES,11.
MLA Feng, Yazhou,et al."Material records for Mesozoic destruction of the North China Craton by subduction of the Paleo-Pacific slab".SCIENCE CHINA-EARTH SCIENCES (2020):11.
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