摘要
系统梳理和总结了前人对郯庐断裂带区域应力状态的研究成果,包括最大主应力方向、稳定性及动力机制分析等。郯庐断裂带北段最大主应力以NEE方向为主,中段以EW方向为主,南段以NEE方向为主。说明郯庐断裂带整体受东西方向的挤压作用,其活动受太平洋板块和东亚大陆板块控制。研究成果揭示了郯庐断裂带整体的应力状态,为防震减灾研究提供依据。
The research findings about regional stress state of Tanlu fault belt were summarized, including the maximum stress directions and magnitudes, the stability of regional faults and dynamic mechanism. The maximum stress direction is NEE in the north segment, and the southern segment, and nearly EW in the middle segment. The fault zone is mainly controlled by the Pacific Ocean plate and East Asia plate. The review shows the whole stress state of Tanlu fault zone, which provides basis for the future research on taking precautions against earthquake.
出处
《大地测量与地球动力学》
CSCD
北大核心
2014年第6期1-8,13,共9页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金项目(41274100)
中央级科研院所基本科研业务专项(ZDJ2012-20)
关键词
郯庐断裂带
地应力
应力状态
最大主应力方向
断层稳定性
Tanlu fault belt
in-situ stress
regional stress state
direction of maximum principal stress
stability of re-gional fault
