The Dongbielieke Fault, an active fault that originated during the Holocene, is located at a key position in the West Junggar orogenic belt. The total length of NE-striking the fault is 120 km. Since the Late Quaternary, continuous activity on the Dongbielieke Fault has caused clear left-lateral dislocations at all morphological units along it, and a continuous linear steep ridge has formed on the eastern side of the Tacheng Basin. Using high-resolution UAV images and differential GPS to depict and measure the strike-slip dislocations at each river terrace level, it was found that the maximum left-lateral dislocations in the T5, T4, and T2 terraces are 30.7 m, 12.0 m, and 8.7 m, respectively. In addition, based on the geomorphic ages from optically stimulated luminescence analyses, we have limited the sliding rate of different terraces on the Dongbielieke Fault. The average left-lateral strike-slip rate since the late Quaternary of the Dongbielieke Fault is 0.91 ± 0.18 mm/a. Combining the GPS rates for North Tianshan with those for the Tacheng Basin, it is believed that the three large NE-trending strike-slip faults (Daerbute, Tuoli, and Dongbielieke faults) absorb a large amount of residual deformation in the area. This would allow the faults to maintain a higher left-lateral slip rate. In summary, analysis of surface faulting, Quaternary geology, seismicity, and measurements of Holocene morphology suggests that the Dongbielieke Fault is an active strike-slip fault with high seismic risk. However, it is unlikely that this fault could generate an earthquake of magnitude greater than 7.5. Our data do not allow for discussion of a more complex seismic cycle.

中文翻译：

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西准gar尔走滑东别列克断裂的晚第四纪活动特征

东别列克断裂是新世时期形成的活动断裂，位于西准gar尔造山带的关键位置。NE引发断层的总长度为120 km。自第四纪晚期以来，东别列克断裂的持续活动已引起沿它的所有形态单元明显的左侧错位，并且塔城盆地东侧形成了连续的线性陡峭脊。使用高分辨率的无人机图像和差分GPS来描绘和测量每个河阶地层的走滑错位，发现T5，T4和T2阶地的最大左侧错位分别为30.7 m，12.0 m，和8.7 m。此外，根据光学激发发光分析得出的地貌年龄，我们限制了东别列克断裂带不同阶地的滑动速度。自东别列克断裂第四纪晚期以来的平均左走向走滑速率为0.91±0.18 mm / a。结合北天山和塔城盆地的GPS速率，可以认为该地区三大NE向走向的走滑断层（Daerbute，Tuoli和Dongbielieke断层）吸收了该区域的大量残余变形。这将使断层保持较高的左滑率。总之，对地表断层，第四纪地质，地震活动性和全新世形态的测量分析表明，东别列克断裂是活跃的走滑断裂，具有较高的地震风险。但是，该断层不太可能产生大于7.5级的地震。