Micro-plate tectonics and kinematics in Northeast Asia inferred from a dense set of GPS observations

	Micro-plate tectonics and kinematics in Northeast Asia inferred from a dense set of GPS observations
	Jin, Shuanggen; Park, Pil-Ho ; Zhu, Wenyao
刊名	EARTH AND PLANETARY SCIENCE LETTERS
	2007-05-30
卷号	257 期号:3-4 页码:486-496
关键词	active tectonics plate kinematics Northeast Asia Amurian plate GPS
英文摘要	The plate tectonics of Northeast Asia are very complex with diffuse and sparse seismicity in the broad plate deformation zones embedded by a number of micro-plates, particularly the controversial Amurian plate. Now the increasingly dense GPS networks in this area provide an important tool to investigate plate tectonic kinematics and to identify the approximate plate tectonic geometries. In this paper, we have processed GPS data (1998-2005) collected by an extensive GPS network (China and South Korea) with more than 85 continuous sites and about 1000 campaign GPS stations. The kinematics of Northeast Asia is studied by modeling GPS-derived velocities with rigid block rotations and elastic deformation. We find that the deformation in Northeast Asia can be well described by a number of rotating blocks, which are independent of the Eurasian plate motion with statistical significance above the 99% confidence level. The tectonic boundary between the North China and Amuria plates is the Yin Shan-Yan Shan Mountain belts with about 2.4 mm/yr extension. Along the boundary between North China and South China, the Qinling-Dabie fault is moving left laterally at about 3.1 mm/yr. The Amuria and South Korea blocks are extending at about 1.8 mm/yr. The Baikal Rift between the Amurian and Eurasian plates is spreading at about 3.0 mm/yr. The 9-17 mm/yr relative motion between the Amuria and Okhotsk blocks is accommodated at the East Sea-Japan trench zone. Localized deformation near the Qinling-Dabie fault and Yin Shan-Yan Shan Mountain belts may be elastic strain accumulation due to interseismic locking of faults. (c) 2007 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Geochemistry & Geophysics
研究领域[WOS]	Geochemistry & Geophysics
关键词[WOS]	CRUSTAL DEFORMATION ; AMURIAN PLATE ; BOUNDARY DEFORMATION ; AMERICAN PLATE ; OKHOTSK PLATE ; ART. ; MOTION ; MODEL ; COLLISION ; FAULTS
收录类别	SCI
语种	英语
WOS记录号	WOS:000247148500010
公开日期	2010-07-30
内容类型	期刊论文
源URL	[http://119.78.226.72//handle/331011/10036]
专题	上海天文台_天文地球动力学研究中心
作者单位	1.Korea Astron & Space Sci Inst, Space Geodesy Div, Taejon 305348, South Korea 2.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Jin, Shuanggen,Park, Pil-Ho,Zhu, Wenyao. Micro-plate tectonics and kinematics in Northeast Asia inferred from a dense set of GPS observations[J]. EARTH AND PLANETARY SCIENCE LETTERS,2007,257(3-4):486-496.
APA	Jin, Shuanggen,Park, Pil-Ho,&Zhu, Wenyao.(2007).Micro-plate tectonics and kinematics in Northeast Asia inferred from a dense set of GPS observations.EARTH AND PLANETARY SCIENCE LETTERS,257(3-4),486-496.
MLA	Jin, Shuanggen,et al."Micro-plate tectonics and kinematics in Northeast Asia inferred from a dense set of GPS observations".EARTH AND PLANETARY SCIENCE LETTERS 257.3-4(2007):486-496.