气候变化领域集成服务门户(CCPortal): Neoarchean–Paleoproterozoic crustal growth and tectonic evolution of the Trans-North China Orogen; North China Craton: evidence from granite–greenstone successions in the Dengfeng Complex

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DOI	10.1007/s00531-020-01928-3
	Neoarchean–Paleoproterozoic crustal growth and tectonic evolution of the Trans-North China Orogen; North China Craton: evidence from granite–greenstone successions in the Dengfeng Complex
	Shi K.; Wang C.; Santosh M.; Yao E.; Du B.; Chen Q.; Zhu J.
发表日期	2020
ISSN	14373254
起始页码	2801
结束页码	2823
卷号	109 期号:8
英文摘要	Granite–greenstone successions and associated tonalite–trondhjemite–granodiorite (TTG) suites constitute dominant components of Precambrian cratons. Here, we present petrology, geochemistry, zircon U–Pb geochronology, and Lu–Hf isotopes on monzonite, granodiorite, granite, and amphibolite from the Dengfeng Complex in the southern part of the North China Craton (NCC). Zircon U–Pb data yield weighted mean 207Pb/206Pb ages of 2498 ± 6 Ma for monzonite, 2481 ± 16 Ma for granodiorite, and 2475 ± 21 Ma for granite. Lu–Hf isotope systematics show εHf(t) values ranging from 1.3 to 6.7 and crustal model ages (TDMC) in the range of 2584–2934 Ma for the rocks. The monzonite, granodiorite, and granite show moderate total rare-earth element (REE) contents, enrichment in light REEs (LREE) and depletion in heavy REEs (HREE), negative Nb, Ta, and Ti anomalies, high Al2O3, Sr/Y, and (La/Yb)N ratios, with low Cr and Ni, indicating that the magma was possibly sourced from partial melting of the lower crust. The geochemical features of amphibolites are characterized by low SiO2, Na2O, K2O, Sr/Y, (La/Yb)N and high FeO, low total REEs values, limited LREE/HREE fractionation, and absence of obvious Ce anomaly, showing similarity to island arc magmatic rocks. Our results are consistent with the model of subduction and arc–continent collision in the Trans-North China Orogen during the Neoarchean to Paleoproterozoic. © 2020, Geologische Vereinigung e.V. (GV).
英文关键词	Crustal growth and tectonic evolution; Dengfeng complex; Geochemistry; Lu–Hf isotopes; North China craton; Zircon U–Pb geochronology
语种	英语
scopus关键词	Archean; crustal evolution; geochronology; granite; greenstone; hafnium; igneous geochemistry; lutetium; Proterozoic; tectonic evolution; uranium-lead dating; China; Dengfeng; Henan; North China Block
来源期刊	International Journal of Earth Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147599
作者单位	State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, 29 Xueyuan Road, Haidian District, Beijing, 100083, China; Department of Earth Sciences, University of Adelaide, Adelaide, SA 5005, Australia; Yonsei Frontier Lab, Yonsei University, Seoul, 03722, South Korea
推荐引用方式 GB/T 7714	Shi K.,Wang C.,Santosh M.,等. Neoarchean–Paleoproterozoic crustal growth and tectonic evolution of the Trans-North China Orogen; North China Craton: evidence from granite–greenstone successions in the Dengfeng Complex[J],2020,109(8).
APA	Shi K..,Wang C..,Santosh M..,Yao E..,Du B..,...&Zhu J..(2020).Neoarchean–Paleoproterozoic crustal growth and tectonic evolution of the Trans-North China Orogen; North China Craton: evidence from granite–greenstone successions in the Dengfeng Complex.International Journal of Earth Sciences,109(8).
MLA	Shi K.,et al."Neoarchean–Paleoproterozoic crustal growth and tectonic evolution of the Trans-North China Orogen; North China Craton: evidence from granite–greenstone successions in the Dengfeng Complex".International Journal of Earth Sciences 109.8(2020).