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Petrogenesis and tectonic implications of 2.45 Ga potassic A-type granite in the Daqingshan area, Yinshan Block, North China Craton

文献类型：期刊论文

作者Ouyang, Dongjian1,2; Guo, Jinghui1,2; Liou, Peng2; Huang, Guangyu2
刊名PRECAMBRIAN RESEARCH
出版日期2020
卷号336页码:23
关键词Archean-Proterozoic boundary Potassic A-type granite Cratonization North China Craton
ISSN号0301-9268
DOI10.1016/j.precamres.2019.105435
英文摘要An Archean-Paleoproterozoic (A-P) A-type granite 15 km wide and 25 km long has been identified in the Daqingshan area south of the Yinshan Block (YB), North China Craton (NCC). Known as the Jinpen pluton, this body is the largest individual granite pluton in the Daqingshan area. Its crystallization ages of 2460-2450 Ma has been determined precisely using the secondary ion mass spectrometer (SIMS) zircon U-Pb method. The Jinpen pluton is lithologically homogeneous, consisting mainly of gneissic monzogranites with metaluminous affinity and high K2O/Na2O (1.08-2.06), Ga/Al, and Zr + Nb + Ce + Y values with high zircon saturation temperatures (T-zr) of 889-837 degrees C; these features are typical of A-type granite. Most samples contain enriched large ion lithophile elements (LILEs) and light rare earth elements (LREEs), high Y and Yb abundances with pronounced Eu negative anomalies, low Sr/Y and (La/Yb)(N) ratios, and low MgO, Cr, and Ni contents, implying a shallow crustal source for the pluton. Its whole-rock Nd isotope composition (epsilon(Nd)(t) = 2.5-0.6) and zircon Hf isotope composition (epsilon(Hf)(t) = 5.2-1.7, T-DM(C) = 2.88-2.65 Ga) indicate that it mainly originated from pre-existing crustal materials. The zircon delta O-18 values of 6.58-5.71 parts per thousand suggest a crustal source of orthogneiss with little metasedimentary material. Previous studies have demonstrated that the YB experienced significant crustal growth at 2.8-2.7 Ga and further crustal reworking at about 2.5 Ga. This study reveals that the Jinpen potassic A-type granite was generated at 2.46-2.45 Ga by partial melting of pre-existing crustal materials at relatively low pressure (P) and high temperature (T) conditions symbolizing the first and essential cratonization of the lithospheric stabilization of the NCC.
WOS关键词ARCHEAN CRUSTAL EVOLUTION ; WESTERN SHANDONG PROVINCE ; HF ISOTOPE COMPOSITION ; XI ULANBULANG AREA ; U-PB ; KHONDALITE BELT ; CONTINENTAL-CRUST ; ZIRCON MEGACRYSTS ; TRACE-ELEMENTS ; PRECAMBRIAN BASEMENT
资助项目Key Research Project of Frontier Science of Chinese Academy of Sciences[QYZDY-SSW-DQC017] ; National Natural Science Foundation of China[41890830] ; National Natural Science Foundation of China[41672190] ; state key laboratory of lithospheric evolution, IGGCAS
WOS研究方向Geology
语种英语
WOS记录号WOS:000508748600005
出版者ELSEVIER
资助机构Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; Key Research Project of Frontier Science of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS ; state key laboratory of lithospheric evolution, IGGCAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/95924]  
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Guo, Jinghui
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.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		 Ouyang, Dongjian,Guo, Jinghui,Liou, Peng,et al. Petrogenesis and tectonic implications of 2.45 Ga potassic A-type granite in the Daqingshan area, Yinshan Block, North China Craton[J]. PRECAMBRIAN RESEARCH,2020,336:23.
APA Ouyang, Dongjian,Guo, Jinghui,Liou, Peng,&Huang, Guangyu.(2020).Petrogenesis and tectonic implications of 2.45 Ga potassic A-type granite in the Daqingshan area, Yinshan Block, North China Craton.PRECAMBRIAN RESEARCH,336,23.
MLA Ouyang, Dongjian,et al."Petrogenesis and tectonic implications of 2.45 Ga potassic A-type granite in the Daqingshan area, Yinshan Block, North China Craton".PRECAMBRIAN RESEARCH 336(2020):23.

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来源：地质与地球物理研究所

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