Variable Thrust Rates of the Eastern Qilianshan Mountain Front, Northeastern Margin of the Tibet Plateau and Its Implication to the Topography of the Yongchangnan Shan

It is commonly assumed a thrust has constant slip and uplifting rate along strike, however, this simplified model cannot always be consistent with field observations. The strike patterns variable offsets rates contain plenty of information about the characteristics faulting behavior its relationship adjacent faults. east Qilian Shan, located at northeastern margin Tibetan Plateau, provides us an excellent opportunity to study in thrust-bounded range area. Besides previously reported N-W trending tectonics across region, we augmented data by surveying Fengle fault (FF), one north bounding thrusts Yongchangnan Shan. Another Kangningqiao Fault (KNF), FF. Based on vertical fault, constructed pattern strike. results show FF ranges from 0.7 ± 0.1 mm/a 2.8 1.3 three surveyed sites. decreases west. KNF might inferred as two segments single segmented controlling uplift By comparing onsets discuss northeastward propagated deformation Tibet plateau.