陆松年,王惠初,李怀坤

• 1:天津地质矿产研究所
• 2:天津地质矿产研究所
• 3:天津地质矿产研究所 天津300170
• 4:天津300170

摘要(Abstract)：

国际地层委员会前不久公布了2 0 0 4年“国际地层表”,并专门提出了“2 0 0 4—2 0 0 8年前寒武纪年表参考方案”。在2 0 0 4年版“国际地层表”中,新建了埃迪卡拉系,其时限从6 30 Ma至5 4 2 Ma。“2 0 0 4—2 0 0 8年前寒武系划分参考方案”指出应该根据唯一客观的物理标准——现存的岩石记录,对前寒武纪地质年表重新进行界定。前寒武纪的地层界线应标定于地层记录中的关键事件或转变点上,以突出反映地球系统演化的巨变。在介绍有关埃迪卡拉系的背景、地质特征和时限的同时,对“参考方案”中有关前寒武系划分原则和具体划分方案的新思路进行了介绍和评述,对“参考方案”中值得商榷的问题进行了初步分析,并对我国前寒武纪年代表制定中有关重点提出了建议

关键词(KeyWords)： 2004“国际地层表”;埃迪卡拉系;前寒武系;年代地层;“参考方案”

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金重点项目 (No.40 0 3 2 0 10 -C);; 中国地质调查局综合研究项目(2 0 0 113 90 0 0 70 )资助

作者(Author): 陆松年,王惠初,李怀坤

参考文献(References)：

• 王曰伦,陆宗斌,邢裕盛等.1980.中国上前寒武系的划分和对比.见:中国震旦亚界.天津:天津科学技术出版社.1—30.
• 陆松年.2001.从罗迪尼亚到冈瓦纳超大陆——对新元古代超大陆研究几个问题的思考.地学前缘,8(4):441—448.
• 陆松年,杨春亮,李怀坤,陈志宏.2002.华北古大陆与哥伦比亚超大陆.地学前缘,9(9):225—233
• 陆松年,蒋明媚.2003.地幔柱与巨型放射状岩墙群.地质调查与研究.26(3):136—144.
• 金　巍,李树勋.1996.华北晚太古—早元古代高级变质区P-T-t轨迹地壳热动力学模式.岩石学报,12:208—221.
• BolharR,HofmannA,WoodheadJD,HergtJ,&DirksP.2002.Pb-andNd-isotope systematics of stromatolitic limestones fromthe2.7GaNgeziGroup of theBelingweGreenstoneBelt:constraints on timing of deposition and provenance.PrecambrianResearch,114:277—294.
• BolharR,WoodheadJD,&HergtJM.2003.Continental settinginferred for emplacement of the2.9—2.7GaBelingwegreenstone belt,Zimbabwe.Geology,31:295—298.
• BowringS A,ErwinD H,JinYu-gan,MartinM W,DavidekK,&WangW.1998.U /Pb zircon geochronology and tempo of theend-Permian mass extinction.Science,280:1039—1045.
• BowringS A,GrotzingerJP,IsachsenC E,KnollA H,PelechatyS M,&KolosovP.1993.Calibrating rates ofEarlyCam brianevolution.Science,261:1293—1298.
• ChenJB,ZhangH M,XingY,&ZhuS X.1981.On theUpperPrecambrian(SinianSuberathem) inChina.PrecambrianResearch,15:207—228.
• CloudP ,1972.A working model of the primitiveEarth.AmericanJournal ofScience,272:537—548.
• CloudP.1987.Trends,transitions,and events inCryptozoichistory and their calibration:apropos recommendations by theSubcommission onPrecambrianStratigraphy.PrecambrianResearch,37:257—264.
• CrookK A W.1989.Why thePrecambrian time-scale should bechronostratigraphic:a response to recommendations by theSubcommittee onPrecambrianStratigraphy.PrecambrianResearch,43:143—150.
• GradsteinF M,OggJ G,Sm ithA G,BleekerW,&L ourensL J.2004.A newGeologicTimeScale,with special reference toPrecambrian andNeogene.Episodes,27(2):83—100.
• GuestJE &GreeleyR.1977.Geology on theMoon.TheWykehamScienceSeries.NewYork:Crane,Russak andCompany,Inc.1—235.
• HarlandW B,CoxA V,LlewellynP G,PicktonC A G,SmithA G&WaltersR.1982.A geologic time scale.Cambridge:CambridgeU niversityPress.1—131.
• HarlandW B,ArmstrongR L,CoxA V,CraigL E,SmithA G &SmithD G.1990.A geologic time scale1989.Cambridge:CambridgeU niversityPress.1—263.
• HofmannH J.1990.Precambrian time units and nomenclature-Thegeon concept.Geology,18:340—341.
• L uS N,YangC L,L iH K,&LiH M.2002,A group of riftingevents in the terminalPaleoproterozoic in theNorthChinaCraton.GondwanaResearch,5(1):123—131.
• L umbersS B &CardK D.1991.Chronometric subdivision of theArchean.Geology,20:56—57.
• MurrayB,MalinM C,&GreeleyR.1981.Earthlike planets;surfaces ofMercury,Venus,Earth,Moon,Mars.SanF rancisco:W H Freeman andCompany.1—387.
• NelsonD R ,TrendallA F,&AltermannW.1999.Chronologicalcorrelations between thePilbara andKaapvaal cratons.PrecambrianResearch,97:165—189.
• NisbetE G.1982.Definition of‘Archaean'-Com ment and aproposal on the recom mendations of theInternationalSubcommittee onPrecambrianStratigraphy.PrecambrianResearch,19:111—118.
• NisbetE G.1991.Of clocks and rocks-The four aeons ofEarth.Episodes,14:327—331.
• NisbetE G &SleepN H.2001.The habitat and nature of early life.N ature,409:1083—1091.
• PeckW H,ValleyJ W,WildeS A,&GrahamC M.2000.Ionm icroprobe evidence forPre-4.4Ga continental crust and lowtemperature water/rock interaction.GeologicalSociety ofAmericaAbstract32(7):376.
• PeckW H,ValleyJW,WildeSA,&GrahamC M.2001.Oxygenisotope ratios and rare earth elements in3.3 to4.4Ga zircons:Ion microprobe evidence for high18O continental crust andoceans in theEarlyArchean.Geochimica etCosmochimicaActa,64(22):4215—4229.
• PlumbK A &JamesH L .1986.Subdivision ofPrecambrian time:Recommendations and suggestions by the comm ission onPrecambrian stratigraphy.PrecambrianResearch,32:65—92.
• PlumbK A.1991.NewPrecambrian time scale.Episodes,14:139—140.
• RemaneJ.2000.InternationalStratigraphicChart,withExplanatoryNote.Sponsored byICS,IUGS andUNESCO.(distributed at the31stInternationalGeologicalCongress,RiodeJaneiro2000).1—16.
• SpudisP D.1999.TheMoon.In:BeattyJ K,PetersenC C,&ChaikinA eds.TheNewSolarSystem.Cambridge:CambridgeUniversityPress.125—140.
• SunDa-zhong&L uSong-nian.1985.A subdivision of thePrecambrian ofChina.PrecambrianResearch,28:137—162.
• TrendallA F.1991.The“geological unit”——A suggested newmeasure of geologic time.Geology,19:195.
• WildeS A,ValleyJ W,PeckW H,&GrahamC M.2001.Evidence from detrital zircons for the existence of continentalcrust and oceans on theEarth4.4Ga ago.N ature,409:175—178.
• WildeS A,ZhaoG C,&SunM.2002.Development of theNorthChinaCraton during the lateArchaean and its final am algmationat1.8Ga:some speculations on its position within a globalPaleoproterozoic supercontenent.GondwanaResearch,5(1):85—94.
• WindleyB F.1984.TheArchaean-Proterozoic boundary.Tectonophysics,105:43—53