摘要
Theresultsinferredfromexperimentswithanaloguemodelscarriedoutpreviouslyhaveshownthattwotypesofplastic-flowwaves,'fast-waves'and'slow-waves',areinducedinthelowerlithosphere(includingthelowercrustandlithosphericmantle)underdrivingatplateboundariesandbothofthemareviscousgravitywavesformedbythesuperpositionofmajorandsubsidiarywaves.Themajorwavesaresimilartosolitarywavesandthesubsidiarywavesaretravelingwaves.Theplastic-flowwavesinthelowerlithospherecontrolseismicactivitiesintheoverlyingseismogeniclayerandresultinthedistributionofearthquakesalongthewavecrestbelts.'Fast-waves'propagatedwithvelocitiesofordersofmagnitudeof100～102km/ahavebeenverifiedbywave-controlledearthquakemigration,showingthe'decadewaves'and'centurywaves'withtheaverageperiodsof10.8and93.4a,respectively,whichoriginatefromtheHimalayandrivingboundary.AccordingtotherecognitionofthepatternsofthebeltlikedistributionofstrongearthquakeswithMs≥7.0,itisindicatedfurtherinthispaperthatthe'slow-waves'withvelocitiesofordersofmagnitudeof100～101m/aalsooriginatedundercompressionfromtheHimalayandrivingboundary.StrongearthquakeswithMs≥7.0arecontrolledmainlybysubsidiarywaves,becausethemajorwaveswithadurationofupto106aforeachdisturbancecannotresultintheaccmnulationofenoughenergyforstrongearthquakesduetotherelaxationoftheuppercrust.Thesubsidiarywavespropagatewithanaveragewavelengthof445km,velocitiesof0.81～2.80m/aandperiodsof0.16～0.55Ma.ThewavegeneratingtimeattheHimalayandrivingboundaryisabout1.34～4.59Mabeforepresentforthe'slow-waves',correspondingtothestagefromtheMidPliocenetotheMidEarlyPleistoceneandbeingidenticalwithoneofthemajortectonicepisodesoftheHimalayantectonicmovement.Itisshownfromtherecognitionofthewave-controlledbeltsofstrongearthquakest
出版日期
2005年01月11日（中国期刊网平台首次上网日期，不代表论文的发表时间）
