STUDY ON MODERN CRUSTAL VERTICAL MOTION IN SHANXI AREA
First Crust Monitoring and Application Center, CEA, Tianjin 300180
Abstract The vertical deformation rates of Shanxi Area during 1980—2010 got from leveling observation data and matched with geological structure units, the block movement rate of the Area(as a block)and the activity rates of boundary faults were obtained. Based on the data, the crust vertical changes and tectonic activity were studied in the past 30 years in the Area. The results show that the western region of Shanxi Area ascended, the eastern region descended, the Lvliangshan Block was tiltuplifting, the Taihangshan Block tilted, and Shanxi Graben tiltascended. The modern tectonic activity of Shanxi Graben system was faultedsubsidence with a rate of 2.68 mm/a,and activity rate of of block boundary faults were all normal faulting with the rates of1.14-4.33mm/a.
Key words :
vertical deformation rate
block tilt
fault activity
Shanxi graben system
rift subsidence motion
Received: 10 June 2013
Published: 23 January 2014
Cite this article:
Ta La,Chen Fuchao,ZhouHaitao et al. STUDY ON MODERN CRUSTAL VERTICAL MOTION IN SHANXI AREA[J]. jgg, 2014, 34(1): 32-37.
Ta La,Chen Fuchao,ZhouHaitao et al. STUDY ON MODERN CRUSTAL VERTICAL MOTION IN SHANXI AREA[J]. jgg, 2014, 34(1): 32-37.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I1/32
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