鄂尔多斯块体南缘InSAR地表形变探测分析  

Detection and Analysis of Surface Deformation Based on InSAR in the Southern Margin of Ordos Block

作　　者：孙赫 陈巍然 陈波[1] 张正豪 何苗 张文婷 SUN He;CHEN Weiran;CHEN Bo;ZHANG Zhenghao;HE Miao;ZHANG Wenting(161175 Troops of PLA,Nanjing 210049,China;The 28th Research Institute of China Electronics Technology Group Corporation,1 East-Muxuyuan Street,Nanjing 210007,China;The Second Monitoring and Application Center,CEA,316 Xiying Road,Xi’an 710054,China)

机构地区：[1]中国人民解放军61175部队,南京市210049 [2]中国电子科技集团公司第二十八研究所,南京市210007 [3]中国地震局第二监测中心,西安市710054

出　　处：《大地测量与地球动力学》2020年第12期1268-1272,共5页Journal of Geodesy and Geodynamics

基　　金：中国地震局震情跟踪定向工作任务(2020010502)。

摘　　要：采用InSAR技术获取鄂尔多斯块体南缘地表形变速率场,为精细分析研究区域内不同类型的形变特征提供依据。结果表明,研究区中部存在多处形变漏斗,南部盆地内城区存在大范围沉降与隆升;岐山-马召段断裂为左旋走滑运动,口镇-关山断裂两侧存在差异运动。结合遥感影像与野外调查数据,确定研究区中部的形变漏斗为矿区开采所致,盆地内三原县发生沉降的原因主要为地下抽水,扶风县与蒲城县的地表隆升主要与地下水位回升有关。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.

关 键 词：鄂尔多斯块体南缘 形变 INSAR 抽水 

分 类 号：P313[天文地球—固体地球物理学] P237[天文地球—地球物理学]