Middle Neoarchean magmatism in western Shandong, North China Craton: SHRIMP zircon dating and LA-ICP-MS Hf isotope analysis

doi:10.1016/j.precamres.2014.07.016

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	Middle Neoarchean magmatism in western Shandong, North China Craton: SHRIMP zircon dating and LA-ICP-MS Hf isotope analysis
	Wan, Yusheng 1; Dong, Chunyan ; Wang, Shijin 2; Kroner, Alfred ; Xie, Hangqiang ; Ma, Mingzhu ; Zhou, Hongying 3; Xie, Shiwen ; Liu, Dunyi
刊名	PRECAMBRIAN RESEARCH
	2014
卷号	255 页码:865-884
关键词	Neoarchean Granitoids SHRIMP zircon dating Hf-in-zircon isotopes Shandong Province North China Craton
ISSN号	0301-9268
DOI	10.1016/j.precamres.2014.07.016
英文摘要	Western Shandong Province is a typical area of the North China Craton (NCC) where Neoarchean plutonic and supracrustal rocks are widely distributed. Early studies documented that similar to 2.7 Ga and similar to 2.5 Ga magmato-tectono-thermal events are well developed in the area. Here we report SHRIMP U-Pb ages and Hf-in-zircon isotopic data from ten samples of different magmatic rock types including hornblendite, gneissic tonalite, gneissic trondhjemite and gneissic granite. Magmatic zircon grains have (207)pb/(206)pb ages ranging from 2667 to 2598 Ma. Some rocks contain similar to 2.5 Ga metamorphic rims and similar to 2.7 Ga zircon cores. The magmatic zircon grains have epsilon(Hf)(t) values and Hf crustal model ages of -1.1 to +11.3 and 3.02-2.4 Ga, respectively. Combined with an earlier study, our main conclusions are that the middle Neoarchean rocks mainly occur together with early Neoarchean rocks in the northeastern portion of the central belt. Juvenile additions to continental crust and crustal recycling played important roles in the middle Neoarchean of western Shandong Province, and the entire Neoarchean tectonic evolution can be divided into middle to early Neoarchean (2.75-2.6 Ga) and late Neoarchean (2.6-2.5 Ga) events. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	地质年代学
WOS关键词	U-PB GEOCHRONOLOGY ; ARCHEAN CRUSTAL EVOLUTION ; PRECAMBRIAN CONTINENTAL-CRUST ; XI ULANBULANG AREA ; METAMORPHIC ROCKS ; DEPLETED MANTLE ; GREENSTONE-BELT ; SOUTHERN INDIA ; GEOLOGICAL IMPLICATIONS ; JUVENILE MAGMATISM
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000347660600007
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40517]
专题	中国地质调查局天津地质调查中心
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Beijing SHRIMP Ctr, Beijing 100037, Peoples R China 2.Chinese Acad Geol Sci, Inst Geol, State Key Lab Continental Tecton & Dynam, Beijing 100037, Peoples R China 3.Shandong Geol Survey Inst, Jinan 250013, Peoples R China 4.China Geol Survey, Tianjin Inst Geol & Mineral Resources, Tianjin 300170, Peoples R China
推荐引用方式 GB/T 7714	Wan, Yusheng,Dong, Chunyan,Wang, Shijin,et al. Middle Neoarchean magmatism in western Shandong, North China Craton: SHRIMP zircon dating and LA-ICP-MS Hf isotope analysis[J]. PRECAMBRIAN RESEARCH,2014,255:865-884.
APA	Wan, Yusheng.,Dong, Chunyan.,Wang, Shijin.,Kroner, Alfred.,Xie, Hangqiang.,...&Liu, Dunyi.(2014).Middle Neoarchean magmatism in western Shandong, North China Craton: SHRIMP zircon dating and LA-ICP-MS Hf isotope analysis.PRECAMBRIAN RESEARCH,255,865-884.
MLA	Wan, Yusheng,et al."Middle Neoarchean magmatism in western Shandong, North China Craton: SHRIMP zircon dating and LA-ICP-MS Hf isotope analysis".PRECAMBRIAN RESEARCH 255(2014):865-884.