摘要
研究了开都河中下游地区的可肯达坂、红水沟和松树达坂等断裂的第四纪活动特征。发现这些活动断裂在中更新世末至全新世早期均有过多次显著活动，且以边冲活动为主，个别断裂兼有左旋走滑活动。由活动断裂所构成的一系列医陷谷地显示了该区新构造应力为近南北向的水平挤压应力。
Quaternary activity characteristics of Kekendaban fault, Hongshuigou fault and Songshudaban fault in the middle and lower reaches of Kaidu River are studied in the paper. These faults had many times of obvious activities from the end of mid pleistocene epoch to early period of Holocene epoch. All these activities were mainly overthrust movement. Few faults had sinistral activities. A series of compressional depressed valleys formed by active faults show that the neotectonic stress field in the area is controlled by horizontal compressional stress.
出处
《内陆地震》
1996年第2期139-146,共8页
Inland Earthquake
关键词
新疆
第四纪
断层活动
地震
地质特征
Xinjiang Quternary Active fault Fault activity Seismicity characteristics Kaidu river
