学科分类
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1 个结果
  • 简介:AGeologicTimeScale(GTS2004)ispresentedthatintegratescurrentlyavailablestratigraphicandgeochronologicinformation.Keyfeaturesofthenewscaleareoutlined,howitwasconstructed,andhowitcanbefurtherimproved.TheaccompanyingInternationalStratigraphicChart,issuedunderauspicesoftheInternationalCommissiononStratigraphy(ICS),showsthecurrentchronostratigraphicscaleandageswithestimatesofuncertaintyforallstageboundaries.SpecialreferenceismadetothePrecambrianpartofthetimescale,whichiscomingofageintermsofdetail,andtotheNeogeneportion,whichhasattainedanultra-high-precisionabsolute-agecalibration.

  • 标签: 地质时间量程 GTS2004 地质年代 地质层学