PRESENT CRUSTAL SHORTENING RATE OF TIANSHAN
MOUNTAIN WITH GPS DATA
1)Key Laboratory of Earthquake Geodesy,Institute of Seismology,CEA,Wuhan 430071
2)Wuhan Base of Institute of Crustal Dynamics,CEA,Wuhan 430071
Abstract GPS data of Crustal Movement Observation Network of China 1999-2013,data of Continental Tectonic Environment Monitoring Network of China and other published GPS results were used to calculate a more complete horizontal velocity field covering the Tianshan mountain.Present crustal shortening rates and its spatial variation were analyzed using 5 GPS profiles across the NorthernPamir Thrust Zone,Kepingtage FoldandThrust Belt,Kuche FoldandThrust Belt,Manas FoldandThrust Belt and Turpan FoldandThrust Belt,respectively.Preliminary results demonstrate that the current shortening rates across the entire Tianshan mountain decrease from west to east with nonlinear features,and the current shortening rates in these profiles are about 26 mm/a,20 mm/a,12 mm/a,9 mm/a and 4 mm/a,respectively.
Key words :
Tianshan mountain
GPS
crustal movement
velocity field
shortening rate
Received: 19 December 2013
Published: 26 September 2014
Cite this article:
Wang Wei,Yang Shaomin,Tan Kai et al. PRESENT CRUSTAL SHORTENING RATE OF TIANSHAN
MOUNTAIN WITH GPS DATA[J]. jgg, 2014, 34(5): 59-63.
Wang Wei,Yang Shaomin,Tan Kai et al. PRESENT CRUSTAL SHORTENING RATE OF TIANSHAN
MOUNTAIN WITH GPS DATA[J]. jgg, 2014, 34(5): 59-63.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I5/59
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