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Continuous deformation of the Tibetan Plateau from Global Positioning System data

Zhang Peizhen, Shen Zhengkang, Wang Min, Gan Weijun, Roland Buergmann, Peter Molnar, Wang Qi, Niu Zhijun, Sun Jianzhong, Wu Jianchun, Sun Hanrong and You Xinzhao
Continuous deformation of the Tibetan Plateau from Global Positioning System data
Geology (Boulder) (September 2004) 32 (9): 809-812


Global positioning system velocities from 553 control points within the Tibetan Plateau and on its margins show that the present-day tectonics in the plateau is best described as deformation of a continuous medium, at least when averaged over distances of > approximately 100 km. Deformation occurs throughout the plateau interior by ESE-WNW extension and slightly slower NNE-SSW shortening. Relative to Eurasia, material within the plateau interior moves roughly eastward with speeds that increase toward the east, and then flows southward around the eastern end of the Himalaya. Crustal thickening on the northeastern and eastern margins of the plateau occurs over a zone approximately 400 km wide and cannot be the result of elastic strain on a single major thrust fault. Shortening there accommodates much of India's penetration into Eurasia. A description in terms of movements of rigid blocks with elastic strain associated with slip on faults between them cannot match the velocity field.

ISSN: 0091-7613
EISSN: 1943-2682
Serial Title: Geology (Boulder)
Serial Volume: 32
Serial Issue: 9
Title: Continuous deformation of the Tibetan Plateau from Global Positioning System data
Affiliation: Chinese Academy of Sciences, Chinese Earthquake Administration, Beijing, China
Pages: 809-812
Published: 200409
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 27
Accession Number: 2004-070975
Categories: Solid-earth geophysics
Document Type: Serial
Bibliographic Level: Analytic
Annotation: With GSA Data Repository Item 2004137
Illustration Description: illus. incl. sketch maps
N20°00'00" - N53°00'00", E74°00'00" - E135°00'00"
Secondary Affiliation: University of California at Berkeley, USA, United StatesUniversity of Colorado at Boulder, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200421
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