摘要
高台陡坎从５０年代中期就被中外地学者关注，对其成因持有两种观点：一种观点认为高台陡坎属于新构造运动与地震事件的产物；另一种观点认为它属于非新构造运动，是人工堆筑的产物。高台陡坎经由东至西方向的地震地质追索调查，确定了其延伸方向、展布范围与规模，描述了结构与构造及物质成分等特征。结合槽探工程揭露验证、跨陡坎电测深基底等深线剖面成果解译、地震事件的考察与研究以及民国新纂高台县志（卷二与卷三）上的历史记载考证研究，认为高台陡坎下部具无根特征。陡坎确非新构造运动成因与地震事件的产物，而实属汉代防御匈奴入侵，沿榆木山山前戈壁滩上堆筑的古边墙遗迹的一部分，其面貌呈浑圆状，具有构造单一、结构复杂之特征。
The highland ridge has been concerned since the middle of fifties by geologists home and abroad. Its formation is generally focused onto two points of views. One considering it is the results of the neotectonics and earthquake events,another insisting that it is the belongings of artificial things, not neotectonic movement. In such cases, a detail seismogeology survey has been carried out from east to west along the ridge,during which its extending direction,ranges and scaleswere lined out,and materials constituent of the construction were analyzed.Through a series of studies and historical notes,it is verified that this ridge is belonging to a tectonic genesis,a part of remained defences in ancient Han Dynasty for preventing invaders from Xiongnu. This knoll is featured by unique tectonics with complex structure.
出处
《内陆地震》
1995年第1期70-79,共10页
Inland Earthquake
关键词
河西走廊
断层陡坎
构造分析
边墙
地震
Gansu Hexi corridor Electrical sounding Fault scarp Fault genesis of earthquake Structrual analysis Side wall
