Abstract:In this paper, we obtain the surface deformation rate of the southern margin of Ordos block using InSAR technology. This provides a basis for detailed analysis of different types of deformation features in the study area. The results show that there are multiple deformation funnels in the middle of the study area, and the urban area of the southern basin presents large-scale subsidence and uplift. The movement of the Qishan-Mazhao fault is left-lateral strike slip, and there are different movements on both sides of the Kouzhen-Guanshan fault. Based on remote sensing images and field survey data, it is determined that the deformation funnel in the middle area is caused by mining. The subsidence of Sanyuan county in the basin is mainly caused by underground pumping. The surface uplift in Fufeng county and Pucheng county are related to the rise of groundwater levels.
SUN He,CHEN Weiran,CHEN Bo et al. Detection and Analysis of Surface Deformation Based on InSAR in the Southern Margin of Ordos Block[J]. jgg, 2020, 40(12): 1268-1272.