Late Neoarchean magmatic and subsequent metamorphic events in the northern North China Craton SHRIMP zircon dating and Hf isotopes of Archean rocks from Yunmengshan Geopark, Miyun, Beijing

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	Late Neoarchean magmatic and subsequent metamorphic events in the northern North China Craton SHRIMP zircon dating and Hf isotopes of Archean rocks from Yunmengshan Geopark, Miyun, Beijing
	Shi, YR (Shi, Yuruo); Wilde, SA (Wilde, Simon A.); Zhao, XT (Zhao, Xitao); Ma, YS (Ma, Yinsheng); Du, LL (Du, Lilin); Liu, DY (Liu, Dunyi)
刊名	GONDWANA RESEARCH
	2012
卷号	21 期号:4 页码:785-800
关键词	SHRIMP zircon geochronology Neoarchean Miyun Geopark North China Craton Hf isotopes
ISSN号	1342-937X
英文摘要	The Miyun Geopark is located in the northern part of the North China Craton and includes a variety of Archean granitoids and metamorphic rocks. SHRIMP zircon dating documents their emplacement ages at 2567-2508 Ma, metamorphic events at ca. 2.50 Ga, 2.44 Ga, and 1.82 Ga. Late Neoarchean basement rocks elsewhere in the North China Craton document a similar evolutionary history with intrusion of granitoid rocks commencing at ca. 2590 Ma and reaching three peaks at about 2550, 2520, and 2500 Ma; these rocks then underwent regional metamorphisms at ca. 2.50 Ga, 2.44 Ga, 1.92 Ga, and 1.82 Ga. Positive epsilon(Hf(t)) values of + 1.7 to + 7.6, with model ages younger than 3.0 Ga, for magmatic zircons from these late Neoarchean intrusive rocks indicate that they are predominantly derived from juvenile crustal sources and suggest that significant crustal growth occurred in the northern North China Craton during the Neoarchean. The intrusive rocks in the Miyun area are part of an extensive province of late Neoarchean magmatism and appear to be related to mantle plume activity at this time. (C) 2011 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
学科主题	地质年代学
WOS关键词	ULTRAHIGH-TEMPERATURE METAMORPHISM ; EASTERN HEBEI PROVINCE ; LU-HF ; GEOLOGICAL SIGNIFICANCE ; GEOCHRONOLOGY ; GRANULITES ; EVOLUTION ; GRANITES ; SYSTEMS ; PETROGENESIS
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000303284100007
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39704]
专题	中国地质调查局
作者单位	Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Shi, YR ,Wilde, SA ,Zhao, XT ,et al. Late Neoarchean magmatic and subsequent metamorphic events in the northern North China Craton SHRIMP zircon dating and Hf isotopes of Archean rocks from Yunmengshan Geopark, Miyun, Beijing[J]. GONDWANA RESEARCH,2012,21(4):785-800.
APA	Shi, YR ,Wilde, SA ,Zhao, XT ,Ma, YS ,Du, LL ,&Liu, DY .(2012).Late Neoarchean magmatic and subsequent metamorphic events in the northern North China Craton SHRIMP zircon dating and Hf isotopes of Archean rocks from Yunmengshan Geopark, Miyun, Beijing.GONDWANA RESEARCH,21(4),785-800.
MLA	Shi, YR ,et al."Late Neoarchean magmatic and subsequent metamorphic events in the northern North China Craton SHRIMP zircon dating and Hf isotopes of Archean rocks from Yunmengshan Geopark, Miyun, Beijing".GONDWANA RESEARCH 21.4(2012):785-800.