Timing of the initial collision between the Indian and Asian continents

doi:10.1007/s11430-016-5136-3

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Timing of the initial collision between the Indian and Asian continents
	Wang ErChie 1,2
刊名	SCIENCE CHINA-EARTH SCIENCES
	2017-04-01
卷号	60 期号:4 页码:626-634
关键词	Timing Of Initial Collision Between The Indian And Asian Continents Collision Criteria Transform Fault Subduction Zone Magmatism Deformation
DOI	10.1007/s11430-016-5136-3
英文摘要	There exist three mainstream opinions regarding the timing of the initial collision between the Indian and Eurasian continents, namely, 65 +/- 5, 45 +/- 5, and 30 +/- 5 Ma. Five criteria are proposed for determining which tectonic event was related to the initial collision between India and Asia: the rapid decrease in the rate of plate motion, the cessation of magmatic activity originating from the subduction of oceanic crust, the end of sedimentation of oceanic facies, the occurrence of intracontinental deformation, and the exchange of sediments sourced from two continents. These criteria are used to constrain the nature of these tectonic events. It is proposed that the 65 +/- 5 Ma tectonic event is consistent with some of the criteria, but the upshot of this model is that the magmatic activity originating from the Tethyan subduction since the Mesozoic restarted along the southern margin of the Asian continent in this time after a brief calm, implying that the subduction of the Neotethys slab was still taking place. The magmatic activity that occurred along the southern margin of the Asian continent had a 7-Myr break during 72-65 Ma, which in this study is interpreted as having resulted from tectonic transformation from subduction to transform faulting, indicating that the convergence between the Indian and Asian continents was once dominated by strike-slip motion. The 30 +/- 5 Ma tectonic event resulted in the uplift of the Tibetan Plateau, which was related to the late stage of the convergence between these two continents, namely, a hard collision. The 45 +/- 5 Ma tectonic event is in accordance with most of the criteria, corresponding to the initial collision between these two continents.
语种	英语
WOS记录号	WOS:000400551300002
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/42205]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wang ErChie. Timing of the initial collision between the Indian and Asian continents[J]. SCIENCE CHINA-EARTH SCIENCES,2017,60(4):626-634.
APA	Wang ErChie.(2017).Timing of the initial collision between the Indian and Asian continents.SCIENCE CHINA-EARTH SCIENCES,60(4),626-634.
MLA	Wang ErChie."Timing of the initial collision between the Indian and Asian continents".SCIENCE CHINA-EARTH SCIENCES 60.4(2017):626-634.