2013年四川芦山Mw6.7级地震构造模型的定量解析
详细信息    查看官网全文
摘要
<正>2013年4月20日,在龙门山南段的芦山县附近发生了一次Mw6.7级地震(陈运泰等,2013)。震源机制解揭示芦山地震发震断层走向212°,倾角47°,滑动角93°(曾详方等,2013),属于逆冲型地震。野外地质调查表明,该发震断层并未突破地表产生同震破裂,为一隐伏断层或盲断层(Xu et al.,2013)。对芦山地震发震断层的模型,目前主要有断层转折褶皱(FBF)和断层传播褶皱(FPF)两种模型的争议。其中FBF模型主要依据芦山地区的人工地震反射剖面,解释结果显示芦山地震断层的倾
引文
1陈运泰,杨智娴,张勇.2013.从汶川地震到芦山地震.中国科学:地球科学,43:1064~1072.
    2邓起东,张培震,冉勇康.2002.中国活动构造基本特征.中国科学D辑:地球科学,32(12):1020~1030.
    3房立华,吴建平,王未来,吕作勇.2013.四川芦山Ms7.0级地震及其余震序列重定位.科学通报,58,1901~1909.
    4鲁人齐,何登发,John Suppe.2010.龙门山中段山前带浅层冲断系统的结构、形成与演化.地质科学,45(4):997~1010.
    5曾祥方,罗艳,韩立波.2013.2013年4月20日四川芦山Ms7.0地震:一个高角度逆冲地震.地球物理学报,56(4):1418~1424.
    6 Burchfiel,B.C.,Chen,Z.,Liu,Y.,Royden,L.H.,1995.Tectonics of the Longmen Shan and adjacent regions,central China.International Geology Review,37(8),661~735.
    7 Jia,D.,Wei,G.Q.,Chen,Z.X.,Li,B.L.,2006.Longmen Shan fold-thrust belt and its relation to western Sichuan Basin in central China:new insights from hydrocarbon exploration.AAPG 90,1425~1447.
    8 Li,Y.Q.Jia,D.,Wang M.M.2014.Structural geometry of the source region for the 2013 Mw 6.6 Lushan earthquake:Implication for earthquake hazard assessment along the Longmen Shan,Earthand Planetary Science Letters,390,275~286.
    9 Xu,X.W.,Wen,X.Z.,Han,Z.J.,Chen,G.H.,Li,C.Y.,2013.Lushan Ms7.0 earthquake:A blind reserve-fault event.Chinese science bulletin,Vol.58,28-29:3437~3443.
    10 Suppe,J.1983.Geometry and kinematics of fault-bend folding.American Journal of Science,283:684~721.
    11 Shaw,J.H.,Connors,C.,and Suppe,J.,2004.Seismic Interpretation of Contractional Fault-Related Folds:An AAPGSeismic Atlas.American Association of Petroleum Geologists Special Publication.
    12 Wang,C.Y.,Han,W.,Wu,J.,Lou,H.,2007.Crustal structure beneath the eastern margin of the Tibetan Plateau and its tectonic implications,J.Geophys.Res.,112,B07307,doi:10.1029/2005JB003873.
    13 Wang M.M.,Jia,D.,Shaw,J.H.,et al.,2014.The 2013 Lushan earthquake:Implications for seismic hazards posed by the Range Front blind thrust in the Sichuan Basin,China.Geology,published online on 28 August 2014 as doi:10.1130/G35809.1

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700