柴达木盆地北缘断裂位于柴达木盆地东北部，是控制柴达木盆地的边界断裂，对

Northern Margin of Qaidam Basin in the northeast basin, is to control the border Qaidam Basin, to study breaking strain QAIDAM for understanding Qilian allocation pattern area and in the area of ​​their activity in the Late Quaternary extrusion expansion process within the basin is important. By studying remote sensing interpretation, geological survey, trench excavation that: NORTH MARGIN XITIESHAN fracture along remote sensing linear characteristics significantly, there is a series of fault scarp, fault triangles, aqueous twist error and other landforms, combined with GPS topographic profile measurement and optically stimulated luminescence dating, on the northern margin of Qaidam Basin (xitiesan segment) carried out a detailed study. Comprehensive analysis of vertical displacement and corpus XITIESHAN Town Dong two different views of the alluvial fan and the age of the corresponding topography of the surface, to give the northern edge of the fracture (xitiesan para) Qaidam basin surface topography obtained by Found level, vertical dislocation data acquisition and associated sample testing surface topography, terraces age, to give a new section of the slip rate since the level of the world 1.81-2.1mm / a, the average rate of thrust 0.33-0.38mm /.

The northern edge fault of the Chaidamu Basin is located in the northeast of the Chaidamu Basin, which is to control the boundary fault of the Chaidamu Basin, and the study of its late Quaternary activity is of great significance to understand the strain distribution pattern of the Yanlian Mountain area and the extrusion expansion process of the fracture in the area to the interior of the Chaidamu Basin. In this paper, through remote sensing interpretation, geological survey, exploration channel excavation and other research, it is concluded that the north edge of the Chaidamu Basin fracture in the area of the Tin Iron Mountain remote sensing image linear characteristics are obvious, there are a series of fault steep, fault triangle surface, water system twisting and other geomorphological phenomena, combined with GPS topographic profile measurement and light release light-release fixed year, the northern edge of the Chaidamu Basin fault (tin iron mountain section) carried out a detailed study. Comprehensive analysis of the west of the town of Tin Tieshan and the east of the quanji River two different periods of sub-flood fan vertical misalignment and the age of the corresponding geomorphological surface, obtained the North Edge fault of the Chaidamu Basin (Tin Iron Mountain section) through the measurement of geomorphological surface horizontal, vertical misalignment data, and collected samples to test the age of the relevant geomorphological surface, step, to obtain the new period horizontal sliding rate of 1.81-2.1mm/a, average rate of 1.81-2.1mm/a, average rate.

The northern margin fault of Qaidam Basin is located in the northeast of Qaidam Basin, which controls the boundary fault of Qaidam Basin. The study of its late Quaternary activity is of great significance to understand the strain distribution model of Qilian Mountain and the compression and extension process of the fault to the interior of Qaidam Basin. Based on the study of remote sensing interpretation, geological investigation and trench excavation, this paper holds that the remote sensing image of the northern margin fault of Qaidam Basin is characterized by obvious linear features, a series of geomorphic phenomena such as fault scarps, fault triangles, and water system dislocation. Combined with GPS topographic profile measurement and Photoluminescence dating, the northern margin fault of Qaidam Basin (Xitieshan section) is studied in detail Research. Based on the analysis of the vertical dislocations and the age of the corresponding geomorphic surface of the two different stages of diluvial fans in the west of Xitieshan town and the east of quanjihe, the horizontal and vertical displacement data of the geomorphic surface of the northern margin fault (Xitieshan section) in Qaidam Basin are obtained through the actual measurement, and the samples are collected to test the age of the relevant geomorphic surface and terrace. The average horizontal sliding rate of the section since Holocene is 1.81-2.1mm/a The thrust rate is 0.33-0.38mm /.