[1]MENG Qingxiao,DANG Xuehui.Research on Current Crustal Deformation in the Jiuzhaigou Area under the Constraints of GPS Results by Discontinuous Contact Model[J].Journal of Seismological Research,2018,41(03):390-397.
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Research on Current Crustal Deformation in the Jiuzhaigou Area under the Constraints of GPS Results by Discontinuous Contact Model
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
41
Number of periods:
2018 03
Page number:
390-397
Column:
Public date:
2018-08-20
- Title:
- Research on Current Crustal Deformation in the Jiuzhaigou Area under the Constraints of GPS Results by Discontinuous Contact Model
- CLC:
- P315.725
- DOI:
- -
- Abstract:
- The interpolated GPS observation data during the 2009-2013 period of the China crustal movement observation network was applied to gain the boundary conditions of 2-D element discontinuous model which was used to simulate the slip rates of the fault system in the Jiuzhaigou area and undertake uncertainty analysis over it.The study turned out that the NE direction movement of Bayan Har block had been hindered by the South China block.The eastern Kunlun fault,Tazang fault,Huya fault and Shuzheng fault showed a left-lateral strike slip and compressional characteristic,when the Minjiang fault,Longriba fault and Longmenshan fault showed a right-lateral strike slip and compressional characteristic.Combined with the calculation results of regional principal strain rate,it shows that the Jiuzhaigou area still has a high background of strain accumulation.As the seismogenic fault of the August 8,2017 Jiuzhaigou M7.0 earthquake,the left-lateral slip rates of Shuzheng fault is about 3 mm/year,which basically matched the slip rate of the eastern Kunlun fault.It is suggested that the fault may be one of the branch of the eastern Kunlun fault zone and the gap between the east Kunlun fault and the Huya fault may have been split by the Jiuzhaigou earthquake.
- References:
- -
- Similar References:
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Last Update:
2018-07-20