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Wu C.-Y.,Earthquake Adminsstration of Xinjiang Uygur Autonomous Region | Shen J.,Earthquake Adminsstration of Xinjiang Uygur Autonomous Region | Shi J.,China Earthquake Administration | Li J.,Earthquake Adminsstration of Xinjiang Uygur Autonomous Region | Xiang Z.-Y.,Earthquake Adminsstration of Xinjiang Uygur Autonomous Region
Dizhen Dizhi | Year: 2011

The Wangjiagou Fault set, a set of Holocene active faults, is located at western suburbs of Urumqi City. The faults dislocated the gravel platform of the mid Pleistocene and the third level terrace of the Wangjiagou east bank, generating apparent fault scarps of opposite-slope direction on the surface with clear geomorphic traces. There are a series of deformation indications on landform, such as seismic fault,scarp and upheaval. In the field, thirty-nine groups of data were measured by using line tape along the fault. Among them, six were measured on the third level terrace of the Wangjiagou, and the others on the mid Pleistocene platform. Based on the data measured across the fault,we obtain that the height of the scarps is 0.4-1.6m and the width of the fault deformation is about 50m on the third level terrace. And on the mid Pleistocene platform,the height of scarps is 1.5-5. Om and the width of the deformation is about 90m. After comparing the profile of strong topographic deformation zone with the trench section, we primarily recognize that the ratio of hanging wall to foot wall deformation width is 2: 1approximately. The widths of strong surface deformation belt on the mid Pleistocene platform and the third level terrace on the two walls are 60m,30m and 33m, 17m ,respectively. Source

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