Characterizing Micro-Displacements on Active Faults in the Gobi Desert with Time-Series InSAR

This research investigates small-scale tectonic activity in the Jiujing region Beishan, northwest China through application of persistent scatterer (PS) Interferometric synthetic aperture radar (InSAR). PS InSAR is an effective monitoring tool this unpopulated, arid, and unvegetated rural area, whose surface geology dominated by a single large granitic intrusion, which represents candidate site for geological disposal facility (GDF) high-level radioactive waste (HLW) China. demonstrates that faults F16-2, F17, F18, F20-2 are still active, producing dip-slip motions along fault planes. The lithological variations weathering erosion can be discounted as cause these displacement variations. work has also identified 11 previously unknown faults, characterising them from vertical (DU) eastward horizontal (DE) displacements across faults. These newly discovered structures demonstrate how used to monitor measure micro-scale movements on regional-scale which, many cases, were considered inactive. Thus, improves our understanding local stress regimes area. part convergent zone NE-SW compression, leading crustal shortening NW-SE elongation. Through determination sense ground movement measured at irregularly distributed points, some reverse trending NW-SE, while others normal NE-SW, highlighting resolve type relative blocks regional scale.