摘要
中卫—同心断裂带西段位于宁夏中卫县甘塘附近,在近期的某重大工程场地的区域地震地质野外调查中,经过断层陡坎和断错冲沟等微地貌测量、槽探揭露、年代样品的采集和测定,获得了断层最新活动时代、活动方式、垂直和水平位移量等资料,表明了它在晚第四纪以来的活动特征。
The western segment of Zhongwei-Tongxin fault zone is located in Zhongwei county, Ningxia Hui Autonomous Region. Through themicrogeomorphologic survey of the fault scarps and the offset gulches, on the basis of trenching and chronologic determination of fault materials, a series of data concerning the active period, active pattern, vertical and horizontal displacement magnitude of the fault zone are obtained. Its activity characteristics since late Quaternary are also demonstrated'.
出处
《地震》
CSCD
北大核心
1993年第1期64-67,共4页
Earthquake
关键词
断裂带
位移
古地震
地震活动性
fault zone
activity
displacement
paleoearthquake
