文档介绍：中国科学技术大学硕士学位论文五在连池火山构造地震活动特征姓名:许晓艳申请学位级别:硕士专业:固体地球物理指导教师:徐果明 摘要本文应用五大连池火山地质、地球物理深部探测、台网观测地震资料,研究火山区及邻区地震活动空间分布特征、地震活动性参数、地震动力学特点、地震活动震源机制特征与构造活动关系。讨论五大连池火山区构造环境下地震活动水平,研究其地震活动与火山构造活动的一些相关因素。对比长白山火山区及国外火山地震动力学研究成果,分析五大连池火山区构造地震动力学特征。f对五大连池火山区构造地震活动有一个初步认识:,沿火山区网状断裂分布,火山区内部新期火山附近地震活动性强。~8KM,火山区中心地震活动震源浅,边缘地震活动震源深。。~61。,但火山区内部受特定构造环境影响震源机制差异较大,构造应力场不均一。,是现今火山区地壳浅层活动强烈点。,未来火山重新活动时,深部岩浆上升可能会沿介质变异带附近到达地表。步一、主题词:火山构造环境地震活动地震波动力学特征五大连池 Abs仃act nle essav works over the characteristics ofthe scope distribution oftheearthquake activities inthevolcarm and itsnearby area,the earthquake activities’parameters,the dynamics feartures ofthequake and therelationship between thefeautres oftheepicenter mechanism andformation activities,wim theconsideration oftheWudalianchi volcano geology,the deep geophysical exploration and theobserved data. Italsodiscusses theearthquake activitieslevels inthecircumstance ofthe structure of the volcano area oftheWudalianchi,and therelatedfactorsabout earthquakes andvolcanoformation earthquake dynamic features isanalyzed incontrast withthose ofthe volcano area of Changbaishan and theresearch production ofthe volcano’Searthquake dynamics abroad. An elementary condition isreached about the earthquake formation activityaround the volcano areaofthe Wudalianchi: su'ucture earthquakes of thevolcanoes aroundtheWudalianchi aredominated by the formationenvironment,distributed unrecularly along thevolcano quake activities are high inthenewly-formed volcanoes around thevolcano area. depth ofthepicenter isdistributed from5KM to8KM according toitssuperority along thevolcano activitiesarehigh inthenewly-formed volcanoesaround epicentre ofthe centralpart inthevolcano areaisshallow,while itisdeeper inthebirm. 3。Direction ofprincipaly stress axis is42—61。in Wudalianchi volcano stress