乌鲁木齐市雅玛里克断裂特征与最新活动时代问题

©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2009)0220215211:P315.2:A,,,(,830011):,,,,,,3:,;,;:;;,,,,,1([123],)3(1)[4],,,150km,(),7080,,,,,;()23220096INLANDEARTHQUAKEVol.23No.2June2009:2008211221;:2009201216.:.:,,,.©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4];;Fig.1ThegeologicalsectionofthepatulousfaultstructurepatterninfrontofBogedaMountain()()(2),,19821084.02[5]();;;();Fig.2ThenorthernborderstructureoutlineofnorthernTienshanMountainandBogedaMountain261223©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[6]:,,,23km3,,(),,11,,,5080,,,,2545,,,,:2;,;,,;,,,,,11.5km,()(3)3Fig.3ThegeologicalmapofYamalikefaultinUrumqicity7122:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),,(),,,,()[7],[8],3.2,19821984[1],19881990,20042007,1984,,(),4,,,0.21m,,[1,2,9],81223.,1991..,1984.©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),200,20(5)15,150m,,,,(6),0.3m,,,14,1620,,1.32m,,2005,,,(7),22.3,,,20049122:.,1984.©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),6Fig.6ThesynthesizedgeologiccolumnsectionofShuimogouseriesofexploratorytrenches1222:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(OSL)BYNG2TL204,12.11.3kaBPBYNG2TL203,22.71.9kaBPBYNG2TL2026BYNG2TL20183.333,,,,15,150m3,3,,,,3:,;22223©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),1984,Q2Q3,2004Q3,Q3,3.52004,1420Q2482004,20Q22004,,10,1.62005,Q22006Q22005,681.22.32005,Q3Q32004,81420041067919911.1891997[9],2.45.2Q31.21984[2],Q340001991I0.2441997[9]3222:.,1984..,1991.©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),,(),,,,4,,(1),(2),,(3),1.5km(4)3:,;,;:[1].[J].,1987,1(1):10216.[2],,,.[J].,1998,12(4):3552361.[3],,,.[J].,1997,11(1):16221.[4],,,.[M].:,1999.[5],,,.2[J].,1999,6(4):1912201.[6],,,.[J].,1996,14(3):2282237.[7].[J].,1984,7(1):24227.[8],.[J].,1990(3):2512260.[9].[J].,1995,9(3):2172226.42223©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(EarthquakeAdministrationofXinjiangUygurAutonomousRegion,Urumqi830011,Xinjiang,China)Abstract:YamalikefaultisthewesternpartofsecondrowfaultofBogedaarcuatestructure.ThefaultgoesacrossUrumqicityandconsistsoftwofaultswithobviousgeofracturesandtectniclandformandhundredsofmeterbroadriftzone.Throughinvestigationofthefaultoverlayingthequaternarystrataandvaryingmorphologicunitrepeatedly,observingofalotofgeologicalsectionofthefault,determinatingtheageofthequaternarydepositrelatedtofaultactivity,theanalysisresultshowedthelatestactiveageofYamalikefaulthadthespatialcharacteristics:oldinwestandnewineast.Therearethreeparts:thepartfromthewestofGejiagoutonorthwestofYamalikeshanmountainislatestmidPleistoceneepochactivity;thepartfromtheeastofGejiagoutoTiechanggouislatePleis2toceneandtheeastofTiechanggouisHoloceneactivity.Keywords:Urumqicity;Yamalikefault;Activityageoffault5222: