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The P-T-t path of pelitic gneisses in the Zanhuang Complex: Further constraints on the Palaeoproterozoic tectonic evolution of the Trans-North China Orogen, North China Craton

文献类型：期刊论文

作者Zou, Lei1,2,3,4; Guo, Jing-Hui2,3,4; Yang, Chong-Hui1; Du, Li-Lin1; Liu, Ping-Hua1
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2021-05-01
卷号210页码:20
关键词Pelitic gneiss P-T-t path Pseudosection Zircon U-Pb dating Zanhuang Trans-North China Orogen
ISSN号1367-9120
DOI10.1016/j.jseaes.2021.104701
英文摘要The Zanhuang Complex, situated on the eastern margin of the central section of the Trans-North China Orogen (TNCO), North China Craton, mainly comprises Archean-Palaeoproterozoic tonalite-trondhjemite-granodiorite (TTG) gneisses, migmatites, granites, metavolcanic rocks, and metasedimentary rocks. Petrographic observations of garnet-bearing pelitic gneisses from the south-eastern Zanhuang Complex show three distinct mineral assemblages (M1-M3) that correspond to three different metamorphic stages. The interpreted prograde metamorphic stage (M1) is mainly represented by the cores of garnet porphyroblasts with fine-grained inclusions of biotite + plagioclase + staurolite + kyanite + quartz + ilmenite. The peak metamorphic stage (M-2) is mainly represented by garnet mantles and a matrix-type mineral assemblage of kyanite + biotite + plagioclase + quartz + ilmenite + melt. The retrograde metamorphic stage (M3) is represented by the presence of sillimanite with garnet rims + biotite + plagioclase + quartz + ilmenite + magnetite. Quantitative phase equilibria modelling constrains the pressure-temperature (P-T) conditions of the M-1 and M-2 stages to 640-670 degrees C/7.3-7.5 kbar and 705-760 degrees C/7.9-9.1 kbar, respectively. The zircons and monazites in the Zanhuang pelitic gneisses all record consistent ages of 1839-1831 Ma, which most likely represent the near-peak metamorphic age. Thus, a clockwise P-T-time (P-T-t) path is determined for the garnet-bearing pelitic gneisses from the Zanhuang Complex. The petrological and geochronological evidence from the pelitic gneisses in the Zanhuang Complex in this paper suggests that the TNCO might have experienced continuous continental collision and rapid tectonic uplift at ca. 1839-1831 Ma, thereby providing a metamorphic constraint on the Palaeoproterozoic tectonic evolution of the TNCO.
资助项目National Natural Science Foundation of China[41890832] ; National Natural Science Foundation of China[41672191] ; National Natural Science Foundation of China[41972205] ; 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:000628225700001
出版者PERGAMON-ELSEVIER SCIENCE LTD
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/132A11/100995]  
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.Chinese Acad Geol Sci, Inst Geol, 26 Baiwanzhuang Rd, Beijing 100037, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.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,Yang, Chong-Hui,et al. The P-T-t path of pelitic gneisses in the Zanhuang Complex: Further constraints on the Palaeoproterozoic tectonic evolution of the Trans-North China Orogen, North China Craton[J]. JOURNAL OF ASIAN EARTH SCIENCES,2021,210:20.
APA Zou, Lei,Guo, Jing-Hui,Yang, Chong-Hui,Du, Li-Lin,&Liu, Ping-Hua.(2021).The P-T-t path of pelitic gneisses in the Zanhuang Complex: Further constraints on the Palaeoproterozoic tectonic evolution of the Trans-North China Orogen, North China Craton.JOURNAL OF ASIAN EARTH SCIENCES,210,20.
MLA Zou, Lei,et al."The P-T-t path of pelitic gneisses in the Zanhuang Complex: Further constraints on the Palaeoproterozoic tectonic evolution of the Trans-North China Orogen, North China Craton".JOURNAL OF ASIAN EARTH SCIENCES 210(2021):20.

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来源：地质与地球物理研究所

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