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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

文献类型：期刊论文

作者Liu, Xiujin1,2,3,4; Liu, Wei3,4; Si, Cuiqin3,4,5
刊名LITHOS
出版日期2019-02-01
卷号326页码:298-312
关键词I-type granitoids East Junggar Shoshonitic rocks Arc-like feature Post-collision
ISSN号0024-4937
DOI10.1016/j.lithos.2018.12.033
英文摘要The 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.
WOS关键词A-TYPE GRANITES ; CARBONIFEROUS VOLCANIC-ROCKS ; U-PB AGES ; CALC-ALKALINE ; GEOCHEMICAL CHARACTERISTICS ; ISOTOPIC COMPOSITIONS ; TECTONIC EVOLUTION ; NORTHERN XINJIANG ; MAFIC INTRUSIONS ; HIGH-POTASSIUM
资助项目National 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
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
WOS记录号WOS:000458942700018
出版者ELSEVIER SCIENCE BV
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 ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; 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 ; 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 ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; 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 ; 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 ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; 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 ; 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 ; National Key R&D Program of China ; National Key R&D Program of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Postdoctoral Science Foundation ; Postdoctoral Science Foundation ; 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 ; Demonstration Research on Detailed Investigation of Soil Pollution in China ; Demonstration Research on Detailed Investigation of Soil Pollution in China
源URL[http://ir.iggcas.ac.cn/handle/132A11/90703]  
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
通讯作者Liu, Xiujin
作者单位1.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
推荐引用方式
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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来源：地质与地球物理研究所

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