摘要
TheeasternHimalayansyntaxisinNamjagbarwaisahigh-grademetamorphicterrainformedbytheIndia-EurasiacollisionandnorthwardindentationoftheIndiancontinentintoAsia.Right-andleft-lateralslipzoneswereformedbytheindentationontheeasternandwesternboundariesofthesyntaxisrespectively.TheDongjug-Mainlingfaultzoneisthemainshearzoneonthewesternboundary.Thisfaultzoneisaleft-lateralslipbeltwithalargecomponentofthrusting.Thekinematicsofthefaultisconsistentwiththeshorteningwithinthesyntaxis,andtheslippinghistoryalongitrepresentstheindentingprocessofthesyntaxis.TheAr-ArchronologicalstudyshowsthattheageoftheearlydeformationintheDongjug-Mainlingfaultzonerangesfrom62to59Ma.ThisevidencesthattheIndia-EurasiacollisionoccurredintheearlyPaleoceneintheeasternHimalayansyntaxis.
出版日期
2002年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)