Geology and zircon dating of trondhjemitic gneiss and amphibolite in the;Tangezhuang area, eastern Shandong

	Geology and zircon dating of trondhjemitic gneiss and amphibolite in the;Tangezhuang area, eastern Shandong
	Xie HangQiang 3; Wan YuSheng ; Wang ShiJin 1; Liu DunYi ; Xie ShiWen ; Liu ShouJie ; Dung ChunYan ; Ma MingZhu
刊名	ACTA PETROLOGICA SINICA
	2013
卷号	29 期号:2 页码:619-629
关键词	Jiaodong terrane SHRIMP zircon dating Neoarchean Paleoproterozoic
ISSN号	1000-0569
英文摘要	similar to 2.5Ga and similar to 1.9Ga metamorphic events are widely recorded all over the North China Craton, being important for understanding the formation and evolution of the craton. Eastern Shandong is located in the eastern North China Craton and contains metamorphic rocks with ca. 2.5Ga and ca. 1.9Ga metamorphic zircon ages. For further constraining the Early Precambrian tectonothermal events in the area, we carried out detailed field observation and SHRIMP U-Pb zircon dating in a road cutting section near Tangezhuang, Laixi County, eastern Shandong. The outcrop consists of interlayered and folded trondhjemitic gneisses and amphibolites. The foliation of the rocks is completely parallel to each other and shows thin interlayer in strong deformation domain, suggesting that thin interlayers of different components cannot be considered as a fact that the protoliths are sedimentary in origin. SHRIMP U-Pb zircon dating yielded an age of 2496 +/- 10Ma (MSWD = 0.45) for magmatic zircons from a trondhjemitic gneiss sample (S1105), with metamorphic rims having ages of ca. 2.5Ga and ca. 1.9Ga. Two amphibolite samples (S1238 and S0812) contain metamorphic zircons with ages of 1842 +/- 3Ma (MSWD = 1. 6) and 1833 +/- 13Ma (MSWD = 1. 0), respectively, but no magmatic zircons have been identified. Combining with previous researches, we suggest that the Late Neoarchean metamorphism widespread over the whole Jiaodong terrane, leading to anatexis and recycling of older crust material, and the Late Paleoproterozoic metamorphism shows a zonal feature as a result of orogenesis.
学科主题	变质岩岩石学
WOS关键词	NORTH CHINA CRATON ; LIAO-JI BELT ; PRECAMBRIAN METAMORPHIC BASEMENT ; PRESSURE PELITIC GRANULITES ; P-T PATH ; JIAOBEI MASSIF ; TECTONIC ; IMPLICATIONS ; CRUSTAL EVOLUTION ; PENINSULA ; GEOCHRONOLOGY
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000317531300019
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40078]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Beijing SHRIMP Ctr, Inst Geol, Beijing 100037, Peoples R China. 2.Shandong Inst Geol Survey, Jinan 250013, Peoples R China. 3.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Xie HangQiang,Wan YuSheng,Wang ShiJin,et al. Geology and zircon dating of trondhjemitic gneiss and amphibolite in the;Tangezhuang area, eastern Shandong[J]. ACTA PETROLOGICA SINICA,2013,29(2):619-629.
APA	Xie HangQiang.,Wan YuSheng.,Wang ShiJin.,Liu DunYi.,Xie ShiWen.,...&Ma MingZhu.(2013).Geology and zircon dating of trondhjemitic gneiss and amphibolite in the;Tangezhuang area, eastern Shandong.ACTA PETROLOGICA SINICA,29(2),619-629.
MLA	Xie HangQiang,et al."Geology and zircon dating of trondhjemitic gneiss and amphibolite in the;Tangezhuang area, eastern Shandong".ACTA PETROLOGICA SINICA 29.2(2013):619-629.