基于InSAR的海原—老虎山—毛毛山断裂带现今地壳形变特征

Abstract

Abstract: We first obtained the average crustal deformation velocity field of the Haiyuan—Laohushan—Maomaoshan fault by interference stacking technology between 2007 and 2011, based on GAMMA and the mean statistical correction from public area of L band 107 ALOS/PALSAR satellite images data. In order to get the large area deformation, and integratedly expressed for wide-range deformation. The parallel fault deformation results show that there is an obvious difference on both sides of the fault which is left-lateral, the differential movement of Maomao—Laohu mountain was relatively outstanding and we should pay attention to it in the earthquake tracking work. The InSAR deformation also shows that the spatial extent and distribution characteristics of regional surface deformation anomaly area. Furthermore, combining with the regional GPS horizontal velocity field, we studied various dimensioned deformation characteristics of the study area.

Key words: Crustal deformation velocity field, Stacking, Differential movement, Haiyuan—Laohushan—Maomaoshan fault

CLC Number:

P315.7

SUN He,XU Jin,SHAO Zhi-gang. Present-day Crustal Deformation of the Haiyuan—Laohushan—Maomaoshan Fault Based on InSAR[J]. EARTHQUAKE, 2017, 37(2): 78-85.

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Present-day Crustal Deformation of the Haiyuan—Laohushan—Maomaoshan Fault Based on InSAR

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