Carboniferous granitic plutons from the northern margin of the North China block implications for a late Palaeozoic active continental margin

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	Carboniferous granitic plutons from the northern margin of the North China block implications for a late Palaeozoic active continental margin
	Zhang, SH (Zhang, Shuan-Hong); Zhao, Y (Zhao, Yue); Song, B (Song, Biao); Yang, ZY (Yang, Zhen-Yu); Hu, JM (Hu, Jian-Min); Wu, H (Wu, Hai)
刊名	JOURNAL OF THE GEOLOGICAL SOCIETY
	2007
卷号	164 页码:451-463
ISSN号	0016-7649
英文摘要	We report four late Palaeozoic zircon sensitive high-resolution ion microprobe (SHRIMP) U-Pb ages for granitic plutons from the Inner Mongolia Palaeo-uplift on the northern margin of the North China block. These cast a new light on the poorly understood tectonic history of the northern margin of the North China block and the Central Asian Orogenic Belt during the late Palaeozoic. The plutons have for a long time been considered to belong to the early Precambrian basement of the North China block. Our new SHRIMP U-Pb zircon dating of four plutons at Longhua, Daguangding, Boluonuo and Hushiha has yielded intrusive ages of 311 +/- 2 Ma, 324 +/- 6 Ma, 302 +/- 4 Ma and 310 +/- 5 Ma, respectively. Geochernical data suggest that these granitoids have a calc-alkaline, subduction-related I-type signature, indicating the existence of an Andean-style continental arc along the northern margin of the North China block during the late Palaeozoic. Our results also indicate that the Palaeo-Asian Ocean still existed during latest Carboniferous-earliest Permian time, and that the final collision between the southern Mongolia composite terranes and the North China block occurred later than c. 290 Ma. We suggest that the northern margin of the North China block was an active continental margin and the Inner Mongolia Palaeo-uplift is a deeply exhumed mid-crustal 'root' of a late Palaeozoic Andean-style continental arc.
学科主题	火成岩岩石学
WOS关键词	TRONDHJEMITE-GRANODIORITE TTG ; ASIAN OROGENIC BELT ; INNER-MONGOLIA ; TECTONIC EVOLUTION ; HEGENSHAN OPHIOLITE ; CRUSTAL GROWTH ; MAGMAS ; PETROGENESIS ; ADAKITE ; MIDDLE
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC PUBL HOUSE
WOS记录号	WOS:000245143300017
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38560]
专题	中国地质调查局
作者单位	Chinese Acad Geol Sci, Key Lab Crustal Deformat & Proc, Inst Geomech, Beijing 100081, Peoples R China Chinese Acad Geol Sci, SHRIMP Ctr, Beijing 100037, Peoples R China Nanjing Univ, Dept Earth Sci, Nanjing 210093, Peoples R China Geol Informat Ctr, Minist Land & Resource, Yanjiao 065201, Hebei Province, Peoples R China
推荐引用方式 GB/T 7714	Zhang, SH ,Zhao, Y ,Song, B ,et al. Carboniferous granitic plutons from the northern margin of the North China block implications for a late Palaeozoic active continental margin[J]. JOURNAL OF THE GEOLOGICAL SOCIETY,2007,164:451-463.
APA	Zhang, SH ,Zhao, Y ,Song, B ,Yang, ZY ,Hu, JM ,&Wu, H .(2007).Carboniferous granitic plutons from the northern margin of the North China block implications for a late Palaeozoic active continental margin.JOURNAL OF THE GEOLOGICAL SOCIETY,164,451-463.
MLA	Zhang, SH ,et al."Carboniferous granitic plutons from the northern margin of the North China block implications for a late Palaeozoic active continental margin".JOURNAL OF THE GEOLOGICAL SOCIETY 164(2007):451-463.