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Petrogenesis and tectonic implications of early Devonian mafic dike-granite association in the northern West Junggar, NW China

文献类型：期刊论文

作者Yin, Jiyuan1; Chen, Wen1; Xiao, Wenjiao2,3,4; Yuan, Chao5; Sun, Min6; Cai, Keda4
刊名INTERNATIONAL GEOLOGY REVIEW
出版日期2018
卷号60期号:1页码:87-100
关键词West Junggar Maficdike-granite Association Slab Rollback Early Devonian
ISSN号0020-6814
DOI10.1080/00206814.2017.1323238
文献子类Article
英文摘要Mafic dike-granite associations are common in extensional tectonic settings and important and pivotal in reconstructing crust-mantle geodynamic processes. We report results of zircon U-Pb and hornblende Ar-40-Ar-39 ages and major-element and trace-element data for mafic dike-granite association from the northern West Junggar, in order to constrain their ages, petrogenesis, and geodynamic process. The mafic dike-granite association was emplaced in the early Devonian. The Xiemisitai monzogranites have high SiO2 contents and low MgO, Cr, and Ni concentrations, suggesting that they were mainly derived from crustal sources and were probably generated by partial melt of the juvenile mid-lower crust. The mafic dikes have low Mg-# and Cr and Ni abundances, suggesting that they have experienced significant fractional crystallization. The Xiemisitai mafic dikes contain hornblende and biotite and display negative Nb-Ta-Ti anomalies, enrichment of LREEs and LILEs, and depletion of HREEs and HFSEs, consistent with an origin from a lithospheric mantle metasomatized by subducted slab-derived fluids. In addition, the Xiemisitai mafic dikes are plotted within melting trends with little to no garnet (Cpx: Grt=6:1) in their source. The La/Yb versus Tb/Yb plot also indicates the presence of less than 1% residual garnet in the source region for the Xiemisitai mafic dikes. Therefore, it can be inferred that the Xiemisitai mafic dikes were generated at a correspondingly shallow depth, mostly within the spinel stability field. The Xiemisitai mafic dikes were most probably generated by the partial melting of the metasomatized lithospheric mantle at relatively shallow depths (<80km). The Xiemisitai mafic dike-granite association could have been triggered by asthenospheric upwelling as a result of the rollback of the subducted Irtysh-Zaysan oceanic lithosphere.
WOS关键词KARAMAY OPHIOLITIC MELANGE ; ASIAN OROGENIC BELT ; S-TYPE GRANITES ; VOLCANIC-ROCKS ; SOUTHERN ALTAIDS ; DYKE SWARMS ; SLAB WINDOW ; ISLAND-ARC ; I-TYPE ; XINJIANG
WOS研究方向Geology
语种英语
WOS记录号WOS:000418932200006
出版者TAYLOR & FRANCIS INC
资助机构Major Basic Research Project of the Ministry of Science and Technology of China(2014CB448000) ; Major Basic Research Project of the Ministry of Science and Technology of China(2014CB448000) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1718) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1718) ; National Science Foundation of China(41390441 ; National Science Foundation of China(41390441 ; China Geological Survey(DD20160123-02) ; China Geological Survey(DD20160123-02) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLaBIG-KF-16-10) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLaBIG-KF-16-10) ; 41473053 ; 41473053 ; 41573045 ; 41573045 ; 41611530698) ; 41611530698) ; Major Basic Research Project of the Ministry of Science and Technology of China(2014CB448000) ; Major Basic Research Project of the Ministry of Science and Technology of China(2014CB448000) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1718) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1718) ; National Science Foundation of China(41390441 ; National Science Foundation of China(41390441 ; China Geological Survey(DD20160123-02) ; China Geological Survey(DD20160123-02) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLaBIG-KF-16-10) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLaBIG-KF-16-10) ; 41473053 ; 41473053 ; 41573045 ; 41573045 ; 41611530698) ; 41611530698) ; Major Basic Research Project of the Ministry of Science and Technology of China(2014CB448000) ; Major Basic Research Project of the Ministry of Science and Technology of China(2014CB448000) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1718) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1718) ; National Science Foundation of China(41390441 ; National Science Foundation of China(41390441 ; China Geological Survey(DD20160123-02) ; China Geological Survey(DD20160123-02) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLaBIG-KF-16-10) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLaBIG-KF-16-10) ; 41473053 ; 41473053 ; 41573045 ; 41573045 ; 41611530698) ; 41611530698) ; Major Basic Research Project of the Ministry of Science and Technology of China(2014CB448000) ; Major Basic Research Project of the Ministry of Science and Technology of China(2014CB448000) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1718) ; Outlay Research Fund of Institute of Geology, Chinese Academy of Geological Sciences(J1718) ; National Science Foundation of China(41390441 ; National Science Foundation of China(41390441 ; China Geological Survey(DD20160123-02) ; China Geological Survey(DD20160123-02) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLaBIG-KF-16-10) ; State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences(SKLaBIG-KF-16-10) ; 41473053 ; 41473053 ; 41573045 ; 41573045 ; 41611530698) ; 41611530698)
源URL[http://ir.iggcas.ac.cn/handle/132A11/93167]  
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, Wen
作者单位1.Chinese Acad Geol Sci, Inst Geol, Lab Isotope Thermochronol, Beijing 100037, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Guangdong, Peoples R China
6.Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 Yin, Jiyuan,Chen, Wen,Xiao, Wenjiao,et al. Petrogenesis and tectonic implications of early Devonian mafic dike-granite association in the northern West Junggar, NW China[J]. INTERNATIONAL GEOLOGY REVIEW,2018,60(1):87-100.
APA Yin, Jiyuan,Chen, Wen,Xiao, Wenjiao,Yuan, Chao,Sun, Min,&Cai, Keda.(2018).Petrogenesis and tectonic implications of early Devonian mafic dike-granite association in the northern West Junggar, NW China.INTERNATIONAL GEOLOGY REVIEW,60(1),87-100.
MLA Yin, Jiyuan,et al."Petrogenesis and tectonic implications of early Devonian mafic dike-granite association in the northern West Junggar, NW China".INTERNATIONAL GEOLOGY REVIEW 60.1(2018):87-100.

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