【摘要】 库松木楔克山山前断层是位于北天山西段再生造山带北缘一条重要的边界断层,是本次新发现和确定的一条活动断层。断层分为东、中、西三段:东段主要由4条断层斜列组合而成,单条断层长度为9~13 km,在晚更新世~全新世仍在强烈活动,晚更新世以来的垂直错动量为3~4 m,垂直活动速率为0.23~0.33 mm/a,全新世以来的垂直错动量为0.5~0.8 m;中段断层活动错断了中更新世至全新世地貌,形成多级断层陡坎和长约8~10 km的地震形变带,晚更新世以来垂直活动速率为0.5 mm/a;西段自晚更新以来无活动显示。更多还原

【Abstract】 Kusongmuxieke mountain front fault is one of important border faults of the north fringe of rejuvenated orogenic belt in west segment of north Tianshan,it is found and determined in our research that it is an active fault.The fault can be divided into three segments.The east segment mainly consists of four en echelon faults with length of 9~13 km,and still moves intensively in Later Pleistocene and Holocene Epoch.Since Later Pleistocene,vertical slippage of single fault has been 3～4 m,vertical active rate is 0.23～0.33 mm/a,and vertical slippage of single fault is 0.5～0.8 m since Holocene Epoch.New movement of the middle segment dislocates different geomorphologic units which formed from Middle Pleistocene to Holocene Epoch,forms multilevel fault escarpments and a 8～10 km long earthquake deformation belt.Since Later Pleistocene the vertical active rate is 0.5 mm/a.The west segment has no movement since Later Pleistocene.更多还原