Time scale of an early to mid-Paleozoic orogenic cycle of the long-lived Central Asian Orogenic Belt, Inner Mongolia of China: Implications for continental growth

doi:10.1016/j.lithos.2007.07.005

	Time scale of an early to mid-Paleozoic orogenic cycle of the long-lived Central Asian Orogenic Belt, Inner Mongolia of China: Implications for continental growth
	Jian, Ping 1; Liu, Dunyi 1; Kroener, Alfred 2; Windley, Brian F.3; Shi, Yuruo 1; Zhang, Fuqin 4; Shi, Guanghai 4; Miao, Laicheng 4; Zhang, Wei 1; Zhang, Qi 4
刊名	LITHOS
	2008-03-01
卷号	101 期号:3-4 页码:233-259
关键词	Central Asian Orogenic Belt SHRIMP SSZ ophiolite orogenic cycle continental growth
ISSN号	0024-4937
DOI	10.1016/j.lithos.2007.07.005
文献子类	Article
英文摘要	We present a detailed, new time scale for an orogenic cycle (oceanic accretion-subduction-collision) that provides significant insights into Paleozoic continental growth processes in the southeastern segment of the long-lived Central Asian Orogenic Belt (CAOB). The most prominent tectonic feature in Inner Mongolia is the association of paired orogens. A southern orogen forms a typical are-trench complex, in which a supra-subduction zone ophiolite records successive phases during its life cycle: birth (ca. 497-477 Ma), when the ocean floor of the ophiolite was formed; (2) youth (ca. 473-470 Ma), characterized by mantle wedge magmatism; (3) shortly after maturity (ca. 461-450 Ma), high-Mg adakite and adakite were produced by slab melting and subsequent interaction of the melt with the mantle wedge; (4) death, caused by subduction of a ridge crest (ca. 451-434 Ma) and by ridge collision with the ophiolite (ca. 428-423 Ma). The evolution of the magmatic arc exhibits three major coherent phases: are volcanism (ca. 488-444 Ma); adakite plutonism (ca. 448-438 Ma) and collision (ca. 419-415 Ma) of the are with a passive continental margin. The northern orogen, a product of ridge-trench interaction, evolved progressively from coeval generation of near-trench plutons (ca. 498-461 Ma) and juvenile arc crust (ca. 484-469 Ma), to ridge subduction (ca. 440-434 Ma), microcontinent accretion (ca. 430-420 Ma), and finally to forearc formation. The paired orogens followed a consistent progression from ocean floor subduction/arc formation (ca. 500-438 Ma), ridge subduction (ca. 451-434 Ma) to microcontinent accretion/ collision (ca. 430-415 Ma); ridge subduction records the turning point that transformed oceanic lithosphere into continental crust. The recognition of this orogenic cycle followed by Permian-early Triassic terminal collision of the CAOB provides compelling evidence for episodic continental growth. (c) 2007 Elsevier B.V. All rights reserved.
WOS关键词	IZU-BONIN-MARIANA ; ALEUTIAN ISLAND-ARC ; CRUSTAL GROWTH ; GEOCHEMICAL CHARACTERISTICS ; SAMAIL OPHIOLITE ; RIDGE SUBDUCTION ; RANGE OPHIOLITE ; PHASE-RELATIONS ; MANTLE WEDGE ; U-PB
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000255096000004
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/70120]
专题	中国科学院地质与地球物理研究所
通讯作者	Jian, Ping
作者单位	1.Chinese Acad Geol Sci, Inst Geol, SHRIMP Unit, Beijing 100037, Peoples R China 2.Johannes Gutenberg Univ Mainz, Inst Geowissensch, D-55099 Mainz, Germany 3.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 5.Inner Mongolian Inst Geol, Hohhot 010055, Peoples R China
推荐引用方式 GB/T 7714	Jian, Ping,Liu, Dunyi,Kroener, Alfred,et al. Time scale of an early to mid-Paleozoic orogenic cycle of the long-lived Central Asian Orogenic Belt, Inner Mongolia of China: Implications for continental growth[J]. LITHOS,2008,101(3-4):233-259.
APA	Jian, Ping.,Liu, Dunyi.,Kroener, Alfred.,Windley, Brian F..,Shi, Yuruo.,...&Ren, Jishun.(2008).Time scale of an early to mid-Paleozoic orogenic cycle of the long-lived Central Asian Orogenic Belt, Inner Mongolia of China: Implications for continental growth.LITHOS,101(3-4),233-259.
MLA	Jian, Ping,et al."Time scale of an early to mid-Paleozoic orogenic cycle of the long-lived Central Asian Orogenic Belt, Inner Mongolia of China: Implications for continental growth".LITHOS 101.3-4(2008):233-259.