Abstract:

From aerophotograph interpreatation and field investigation data by using geological andgeomorphological metheds,this paper discusses four geomorphological patterns:the offsetdrainages,deformed arcuate mountain ridges,nomal and reverse drag-deformed ridges,generated by creep along strike-slip fault.According to these creep markers mentioned above,we havemeasured creep amount on the eastern segment of the Changma fault zone and then given the ratio of the stick-slip to creep values and distribution of the ratio of the creep value to whole strike-slip amount

Key words: Strike-slip fault, Fault movement, Fault throw, Geological and geomorpholohical features

摘要：

在室内航片解释的基础上,依据野外现场实测资料,应用地质地貌学方法,对走滑断裂上由蠕滑作用形成的弧形,“正”、“逆”牵引变形山脊及断错变形冲沟的4种地貌形态进行了讨论,并根据这些蠕滑标志,测量了昌马断裂带中、东段的蠕滑量。给出了粘滑与蠕滑量的比值及蠕滑量占总走滑量的比例在断裂带上的分布情况。

关键词: 走滑断层, 断层运动, 断距, 地质地貌特征