[1]XU Dongzhuo,ZHU Chuanbao,MENG Xiangang,et al.Temporal and Spatial Evolution Characteristics of Crust Vertical Deformation and Its Relationship with Strong Earthquakes in Central and Northern Shanxi[J].Journal of Seismological Research,2018,41(03):446-450.
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Temporal and Spatial Evolution Characteristics of Crust Vertical Deformation and Its Relationship with Strong Earthquakes in Central and Northern Shanxi
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
41
Number of periods:
2018 03
Page number:
446-450
Column:
Public date:
2018-08-20
- Title:
- Temporal and Spatial Evolution Characteristics of Crust Vertical Deformation and Its Relationship with Strong Earthquakes in Central and Northern Shanxi
- Keywords:
- Shanxi central and northern region; precision leveling; crustal vertical deformation; seismic risk
- CLC:
- P315.725
- DOI:
- -
- Abstract:
- Based on two periods of 2006 and 2015 first-order leveling data in central and northern Shanxi,the temporal and spatial evolution characteristics of the crustal vertical deformation was studied by using the classical dynamic adjustment method.The conclusions are as follows:①The recent overall performance in central and northern Shanxi shows uplift in the mountainous region and the subsidence in basins,which were mainly based on the inheritance movement,accompanied by differential movement.The Lvliang block and Taihang block are uplifting,with the rate of 2～8 mm/a and 2～6 mm/a,respectively.The basins in the Shanxi fault depression zone show relative subsidence and the rate is-3～-10 mm/a.②Before and after the Wenchuan earthquake,the crustal movement in the study area changed.Before the earthquake,the regional crustal movement was characterized by tension,and after the earthquake the tension became weaken and the extrusion enhanced.③There is a high gradient zone of vertical crustal deformation in the Datong-Huashaoying,Huhehaote and Yuci-Shijiazhuang region,and it shows a seismic risk background in medium and long term.
- References:
- -
- Similar References:
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Last Update:
2018-07-20