VERTICAL DEFORMATION AND TECTONIC ACTIVITY IN TIANJIN AREA
Guo Liangqian1) ;Buo Wanju1) ;Chen Yukun2) ;Yao Lanyu2) ;Ta La1) ;Zhou Haitao1) ;and Guo He1)
1)First Crust Monitoring and Application Center,CEA,Tianjin 300180 2)Earthquake Administration of Tianjin Municipality,Tianjin 300207
Abstract On the basis of the calculated results of the leveling data of Tianjin area during 1992-2008,the vertical variations of the ground were studied and the funnels of every survey line were calculated by polynomial function as well.After eliminating the settling influence of the groundwater pumping,the results are then fitted individually in each block,the diagrams of the vertical deformation rate were mapped,and the vertical velocities of the main fault zone were calculated.On the basis of the results of the studies the activities of block and fault zone in Tianjin were investigated.The vertical deformation reflects that some blocks in the Tianjin appear tilting and some appear rise or fall.The vertical variety divergences are different.The vertical velocity of the fault zone in Tianjin area is between 0.13-0.48 mm/a,the average velocity is 0.29 mm/a.
Key words :
leveling data
ground subsidence
crustal vertical deformation
block motion
vertical velocity of fault zone
Received: 01 January 1900
Corresponding Authors:
Guo Liangqian
Cite this article:
Guo Liangqian,Buo Wanju,Chen Yukun et al. VERTICAL DEFORMATION AND TECTONIC ACTIVITY IN TIANJIN AREA[J]. , 2009, 29(5): 1-5.
Guo Liangqian,Buo Wanju,Chen Yukun et al. VERTICAL DEFORMATION AND TECTONIC ACTIVITY IN TIANJIN AREA[J]. jgg, 2009, 29(5): 1-5.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I5/1
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