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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. 中国科学院矿产资源研究重点实验室
Petrogenesis and magmatic evolution of the intermediate-felsic Early Cretaceous Shizhuzi magmatic complex on Liaodong Peninsula, NE China

文献类型：期刊论文

作者Wu, Jinjian2,3,4; Zeng, Qingdong2,3,4; Yang, Jinhui3,4,5; Li, Rui3,4,5; Yu, Bing2,3,4; Wang, Ruiliang1; Chen, Peiwen6; Zhang, Zheming2,3,4; Xie, Wei2,3,4
刊名LITHOS
出版日期2021-10-01
卷号398页码:16
ISSN号0024-4937
关键词Granite petrogenesis Shizhuzi magmatic complex Magmatic evolution Zircon Hf isotope Zircon U-Pb dating North China Craton
DOI10.1016/j.lithos.2021.106338
英文摘要The destruction of the North China Craton (NCC) culminated during the Early Cretaceous, inducing widespread magmatism and related mineralization in the eastern China. The Shizhuzi magmatic complex (SMC) from the Liaodong Peninsula is typical products of this event, thus could provide important insights on the destruction process. Here, we present petrological, geochronological, and elemental and isotopic geochemical data for the SMC rocks in order to reveal their magma sources, petrogenesis and the possible geodynamic process. The complex comprises quartz diorite, granodiorite, and granite, accompanied with Au, Cu and Mo mineral deposits. Zircon U-Pb dating shows that the different rocks were coeval with the formation ages of 129-126 Ma, coin-cident with the associated mineralization. However, field relations, whole-rock major and trace element contents and isotopic compositions indicate different origin for the quartz diorites and the coeval granodiorites and granites. The quartz diorites are calc-alkaline rocks with high MgO, Mg# and low SiO2. They are enriched in large ion lithophile elements (LILEs) and light rare earth elements (LREEs), and depleted in high field strength elements (HFSEs) with significant negative Nb, Ta and Ti anomalies. These geochemical data and the highly enriched zircon Hf isotopes suggest that they were derived from partial melting of enriched subcontinental lithospheric mantle. The granodiorites and granites from the SMC have high SiO2 and low MgO contents, sug-gesting that they were derived from crustal sources. These rocks are I-type rocks with high-K calc-alkaline features. Their primary magma originated from the partial melting of basaltic lower crust and experienced fractional crystallization. The ascending mantle-derived magma provided heat for the melting of the crustal rocks. Based on regional geology, the SMC was generated in the extensional setting related to the roll-back of the subducted Paleo-Pacific plate. The concurrent mantle and crustal melting in the formation of the SMC revealed the loss of stability of the cratonic lithosphere, related to the destruction of the NCC during Early Cretaceous. Besides, the emplacement of SMC might also contribute to the formation of contemporaneous Au, Mo, and Cu deposits.
WOS关键词TRACE-ELEMENTS ; HIGH-PRESSURE ; HF ISOTOPES ; LU-HF ; NORTH ; CRUST ; ZIRCON ; CRATON ; DESTRUCTION ; CONSTRAINTS
资助项目National Key R&D Program of China[2016YFC0600108-03-1]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
出版者ELSEVIER
WOS记录号WOS:000687293400003
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/102583]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
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Zeng, Qingdong
作者单位1.China Univ Geosci Beijing, Fac Geosci & Resources, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
6.Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550012, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Jinjian,Zeng, Qingdong,Yang, Jinhui,et al. Petrogenesis and magmatic evolution of the intermediate-felsic Early Cretaceous Shizhuzi magmatic complex on Liaodong Peninsula, NE China[J]. LITHOS,2021,398:16.
APA Wu, Jinjian.,Zeng, Qingdong.,Yang, Jinhui.,Li, Rui.,Yu, Bing.,...&Xie, Wei.(2021).Petrogenesis and magmatic evolution of the intermediate-felsic Early Cretaceous Shizhuzi magmatic complex on Liaodong Peninsula, NE China.LITHOS,398,16.
MLA Wu, Jinjian,et al."Petrogenesis and magmatic evolution of the intermediate-felsic Early Cretaceous Shizhuzi magmatic complex on Liaodong Peninsula, NE China".LITHOS 398(2021):16.

入库方式： OAI收割

来源：地质与地球物理研究所

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