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Petrogenesis and source rocks of the high-K talc-alkaline and shoshonitic I-type granitoids in the northwestern part of East Junggar, NW China
Liu, Xiujin1,2,3,4; Liu, Wei3,4; Si, Cuiqin3,4,5
2019-02-01
Source PublicationLITHOS
ISSN0024-4937
Volume326Pages:298-312
AbstractThe metaluminous I-type granitoids in the northwestern part of East Junggar include the Kala'an high-K talc-alkaline granodiorite and the Zhalate shoshonitic quartz monzonite, which were emplaced at 331 Ma and 323 Ma, respectively. They represent formations from two independent magmatic events. The I-type granitoids have arc geochemical features verified by the following characteristics: (1) enrichments in large ion lithophile element (LILE) and light rare earth element (LREE) relative to high field strength element (HFSE), with strong positive Pb and negative Ti anomalies; (2) epsilon(Hf)(t) values (+13.8 to +12.7) that are similar to juvenile crust generated in modem island arcs; (3) (Sr-87/ Sr-88)f (0.7035-0.7043) and epsilon(Nd)(t) (5.8-6.7) values and REE pattern that are consistent with arc volcanic rocks in East Junggar. Granodiorite and quartz monzonite show mantle-like weighted mean delta O-18 values of 5.3%. and 5.9%, respectively, which precludes stagnant oceanic crust as the source rock. The metamorphosed underplating mafic intrusion buried at depth most probably served as the source rock for the granodiorite and the quartz monzonite. The quartz monzonite exhibits remarkably higher contents of K2O, Na2O, A1(2)O(3), REE and other incompatible elements, and lower contents of FeO, MgO and CaO than the granodiorite. These distinct chemical compositions and geochemical features of the quartz monzonite and the granodiorite were most likely inherited from differences between their source rocks, which were jadeite- and phengite-bearing garnet amphibolite, respectively. The coeval occurrence of high-K talc-alkaline granodiorite and shoshonitic quartz monzonite in the northwestern part of East Junggar suggests a post-collisional setting, and the subduction must has ceased before 331-323 Ma. (C) 2018 Elsevier B.V. All rights reserved.
KeywordI-type granitoids East Junggar Shoshonitic rocks Arc-like feature Post-collision
DOI10.1016/j.lithos.2018.12.033
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; Demonstration Research on Detailed Investigation of Soil Pollution in China
WOS KeywordA-TYPE GRANITES ; CARBONIFEROUS VOLCANIC-ROCKS ; U-PB AGES ; CALC-ALKALINE ; GEOCHEMICAL CHARACTERISTICS ; ISOTOPIC COMPOSITIONS ; TECTONIC EVOLUTION ; NORTHERN XINJIANG ; MAFIC INTRUSIONS ; HIGH-POTASSIUM
Language英语
Funding ProjectNational Key R&D Program of China[2017YFC0601206] ; Natural Science Foundation of China[41573030] ; Natural Science Foundation of China[41503024] ; Postdoctoral Science Foundation[2015M571114] ; Postdoctoral Science Foundation[2016T90132] ; Demonstration Research on Detailed Investigation of Soil Pollution in China
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; Demonstration Research on Detailed Investigation of Soil Pollution in China
WOS Research AreaGeochemistry & Geophysics ; Mineralogy
WOS SubjectGeochemistry & Geophysics ; Mineralogy
WOS IDWOS:000458942700018
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90703
Collection矿产资源研究院重点实验室
Corresponding AuthorLiu, Xiujin
Affiliation1.Chinese Acad Geol Sci, Inst Geophys & Geochem Explorat, Key Lab Geochem Cycling Carbon & Mercury Earths C, Langfang 065000, Peoples R China
2.China Geol Survey, Geochem Res Ctr Soil Qual, Chengdu, Sichuan, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
5.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Liu, Xiujin,Liu, Wei,Si, Cuiqin. Petrogenesis and source rocks of the high-K talc-alkaline and shoshonitic I-type granitoids in the northwestern part of East Junggar, NW China[J]. LITHOS,2019,326:298-312.
APA Liu, Xiujin,Liu, Wei,&Si, Cuiqin.(2019).Petrogenesis and source rocks of the high-K talc-alkaline and shoshonitic I-type granitoids in the northwestern part of East Junggar, NW China.LITHOS,326,298-312.
MLA Liu, Xiujin,et al."Petrogenesis and source rocks of the high-K talc-alkaline and shoshonitic I-type granitoids in the northwestern part of East Junggar, NW China".LITHOS 326(2019):298-312.
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