POSITIVE INVERSION STRUCTURE OF THE CENTRAL STRUCTURE BELT IN TURPAN-HAMI BASIN

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摘要 ThecentralstructurebeltinTurpan-HamibasiniscomposedoftheHuoyanshanstructureandQiketaistructureformedinlateTriassic-earlyJurassic,andischaracterizedbyextensionaltectonics.Thethicknessofstratainthehangingwallofthegrowthfaultisobviouslylargerthanthatinthefootwall,andadepositioncenterwasevolvedintheTaibeisagwherethehangingwallofthefaultislocated.InlateJurassicthecollisionbetweenLhasablockandEurasiacontinentresultedinthetransformationoftheTurpan-Hamibasinfromanextensionalstructureintoacompressionalstructure,andconsequentlyinthetectonicinversionofthecentralstructurebeltoftheTurpan-Hamibasinfromtheextensionalnormalfaultintheearlierstagetothecompressivethrustfaultinthelaterstage.TheTertiarycollisionbetweentheIndianplateandtheEurasianplateoccurredaround55Ma,andthisHimalayanorogeniceventhasplayedaprofoundroleinshapingtheTianshanarea,onlytheeffectofthecollisiontothisareawasdelayedsinceitculminatedhereapproximatelyinlateOligocene-earlyMiocene.Thecentralstructurebeltwasstronglydeformedandthrustedabovethegroundasaresultofthistectonicevent.
机构地区 不详
出版日期 2003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)
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