固体地球物理学术报告通知-李戈
报告地点：教学行政楼 706会议室
报告时间：星期五,2021-04-16 15:00 - 16:30
报告人：李戈
报告人简介：
李戈2014年图书馆VIP固体地球物理专业毕业，2020年获得麦吉尔大学地震学博士学位。研究方向是断层两侧物性差异和结构的不规则性对地震破裂的影响。
报告题目：Fault zone geometrical complexity and material contrast on earthquake rupture propagation: Observation and modelling
报告内容简介
Seismic hazard analysis of continental faults is a difficult task due to many challenges. For continental faults, fault geometrical complexity and bimaterial contrast often coexist and the study on their joint influence is still insufficient.
In this talk, I will first explore how to identify hidden crustal seismogenic structures associated with the Leech River fault zone (LRFZ) based on seismic analysis incorporated with existing geologic data. Then, I investigate earthquake rupture propagation across the LRF step-over system based on 3D finite-element simulations, focusing on rupture jumping scenarios from the LRF to one of its neighboring fault systems. Finally, based on 2D finite-element simulations, I will show the joint influence of restraining fault bends and the bimaterial effect on rupture processes.