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Palaeoproterozoic granulite-facies metamorphism in the eastern Alxa Block: New petrological and geochronological evidence from the Diebusige Complex

文献类型：期刊论文

作者Zou, Lei1,2,3,5; Guo, Jing-Hui1,2,5; Liu, Li-Shuang2,5; Ji, Lei3; Tian, Zhong-Hua3; Wang, Wei3; Shi, Jian-Rong4; Liu, Ping-Hua3
刊名PRECAMBRIAN RESEARCH
出版日期2021-03-01
卷号354页码:17
关键词Eastern Alxa Block Diebusige complex Granulite-facies metamorphism Tectonic affinity Zircon U-Pb dating
ISSN号0301-9268
DOI10.1016/j.precamres.2020.106051
英文摘要The Diebusige Complex, the highest-grade metamorphic complex in the Alxa Block, can provide significant insights into the origin, formation, evolution, and tectonic affinity of the Alxa Block. Petrographic observations show that the mineral assemblage of (garnet) magnetite quartzite from the Diebusige Complex is magnetite + quartz + hypersthene + plagioclase + clinopyroxene + garnet. The metamorphic temperature (T) is constrained to 800-860 degrees C by the two-pyroxene geothermometer, corresponding to granulite-facies metamorphism. Geochmnological studies involving cathodoluminescence (CL) images, LA-ICP-MS U-Pb dating, and trace element analyses of zircons show that the time of granulite-facies metamorphism was approximately 1850 Ma. Combined with the corresponding published data, this paper suggests that the metamorphic basement rocks of the Alxa Block record Neoarchaean-early Palaeoproterozoic magmatic-metamorphic and late Palaeoproterozoic granulite-facies metamorphic events, thereby indicating the affinity between the Alxa Block and the Khondalite Belt (KB).
资助项目National Natural Science Foundation of China[41672191] ; National Natural Science Foundation of China[41972205] ; National Natural Science Foundation of China[41890832] ; Geological Investigation Project of the China Geological Survey[DD20190003] ; Geological Investigation Project of the China Geological Survey[DD20160121]
WOS研究方向Geology
语种英语
WOS记录号WOS:000615712000014
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey ; Geological Investigation Project of the China Geological Survey
源URL[http://ir.iggcas.ac.cn/handle/132A11/100143]  
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Liu, Ping-Hua
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Geol Sci, Inst Geol, 26 Baiwanzhuang Rd, Beijing 100037, Peoples R China
4.China Geol Survey, Tianjin Ctr, Tianjin 300170, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zou, Lei,Guo, Jing-Hui,Liu, Li-Shuang,et al. Palaeoproterozoic granulite-facies metamorphism in the eastern Alxa Block: New petrological and geochronological evidence from the Diebusige Complex[J]. PRECAMBRIAN RESEARCH,2021,354:17.
APA Zou, Lei.,Guo, Jing-Hui.,Liu, Li-Shuang.,Ji, Lei.,Tian, Zhong-Hua.,...&Liu, Ping-Hua.(2021).Palaeoproterozoic granulite-facies metamorphism in the eastern Alxa Block: New petrological and geochronological evidence from the Diebusige Complex.PRECAMBRIAN RESEARCH,354,17.
MLA Zou, Lei,et al."Palaeoproterozoic granulite-facies metamorphism in the eastern Alxa Block: New petrological and geochronological evidence from the Diebusige Complex".PRECAMBRIAN RESEARCH 354(2021):17.

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来源：地质与地球物理研究所

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