Geochronological frame of granitoids from Central Inner Mongolia and its tectonomagmatic evolution

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	Geochronological frame of granitoids from Central Inner Mongolia and its tectonomagmatic evolution
	Shi YuRuo 3; Liu Gui 1; Deng JinFu 1; Jian Ping
刊名	ACTA PETROLOGICA SINICA
	2014
卷号	30 期号:11 页码:3155-3171
关键词	Granitoids Chronological frame Central Inner Mongolia Paleo-Asian Ocean
ISSN号	1000-0569
英文摘要	The Central Asian Orogenic Belt ( CAOB ) is situated between the Siberian, North China and Tarim cratons. Central Inner Mongolia is located at southern margin of CAOB and northern margin of North China Craton ( NCC ) Granitoids widely distributed in this area were emplaced from Early Paleozoic to Mesozoic. Six major episodes of magmatism are identified: ( a ) 491 similar to 417Ma, the emplacement of quartz-diorite, granodiorite, tonalite, trondjemite, and biotite-monzogranite; ( b ) 390 similar to 387Ma, the intrusion of syenite, monzonite, A-type granite and diorite; ( c ) 353 similar to 302Ma, quartz-diorite, tonalite, monzogranite, and garnet-bearing granite; ( d ) 294 similar to 260Ma, alkaline granite and diorite; ( e ) 238 similar to 204Ma, monzogranite, A-type granite, muscovite-biotite-granite, and granodiorite; ( f ) <200Ma, monzogranite and syenogranite. The spatial-temporal distribution of the magmatic rocks from central Inner Mongolia and their assemblages were products of the subduction/accretion of Paleo-Asian Ocean, which evolved through a complicated subduction/obduction-accretion-extension ( SOAE ) system: subduction/obduction in two different directions in Ordovician, collage/accretion in Silurian, regional extension on the northern margin of the North China Craton in Devonian, and extension on the northern foldbelt in Permian. The final closure of the Paleo-Asian Ocean took place during Late Permian to Early Triassic was the end of the evolution of ocean and the beginning of the collision of continent-continent.
学科主题	火成岩岩石学
WOS关键词	ASIAN OROGENIC BELT ; PB ZIRCON GEOCHRONOLOGY ; NORTH CHINA BLOCK ; CONTINENTAL GROWTH ; TECTONIC IMPLICATIONS ; HEGENSHAN OPHIOLITE ; CRUSTAL GROWTH ; GEOCHEMICAL CONSTRAINTS ; PETROGENESIS ; MARGIN
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000346755900004
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40569]
专题	中国地质调查局发展研究中心
作者单位	1.Chinese Acad Geol Sci, Beijing SHRIMP Ctr, Inst Geol, Beijing 100037, Peoples R China 2.China Univ Geosci, Beijing 100083, 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	Shi YuRuo,Liu Gui,Deng JinFu,et al. Geochronological frame of granitoids from Central Inner Mongolia and its tectonomagmatic evolution[J]. ACTA PETROLOGICA SINICA,2014,30(11):3155-3171.
APA	Shi YuRuo,Liu Gui,Deng JinFu,&Jian Ping.(2014).Geochronological frame of granitoids from Central Inner Mongolia and its tectonomagmatic evolution.ACTA PETROLOGICA SINICA,30(11),3155-3171.
MLA	Shi YuRuo,et al."Geochronological frame of granitoids from Central Inner Mongolia and its tectonomagmatic evolution".ACTA PETROLOGICA SINICA 30.11(2014):3155-3171.