摘要
据航空像片活断层变位地形判读,巴里坤活动断裂带包括西盐池断裂及托来泉断裂。这2条断裂又分别由3条及4条次级断层组成。次级断层呈左阶方式排列。这些断层形成山前平直陡崖,错断洪积扇及河漫滩,形成地表陡坎、凹沟及淤积塘,组成地表地震形变带。这2条断裂是否分别对应1842年及1914年东天山2次7.5级地震,仍需进一步探讨。
From interpretation of aerophone,we get to know that the Balikun active fault zone con-sistes of two fault zones, i. e,the Xiyianchi fault zone,striking NE 75° 60 km long,and the Tuolai spring fault zone,striking NE 75°,75 km long . Both fault zones separately have three or four second -class faults, distributing in left-step . There are scarps on proluvian fans and terraces, line basic rock scarps, line gullies, sag ponds and trenches along these active faults, thus formed the earthquake deformation belts. Whether both of these faults zones respectively responded to the two earthquakes with magnitude 7. 5 in the East Tianshan area needs further investigation .
出处
《内陆地震》
1993年第4期350-355,共6页
Inland Earthquake
关键词
航片判读
断裂带
变位
地震
地形
Aerophone interpretation Left -step arrangement Proluvial fan scarps Seismic deformation belt
