山西静乐和陕西榆林地区红色土与黄土-古土壤序列之关系-岳乐平

(49572133)。19971120。:,,1949,,1976,。—岳乐平　张云翔　王建其　　　　赵廷周　　　　(西北大学地质系　西安　710069)　　(陕西省地矿局　西安　710000)　　:(1)A,Gauus,2.50～3.00Ma,。GauusGilbert,2.50～5.00Ma,。(2)B—WS—1,WS—2,WS—3S15—S32,OlduvaiReunion,1.20～2.30Ma,。(3)C,,S1—L15,。　　　A、B、C　—　S152.241930,P.Teilharddechardin()《》[1],,“”A、B、C3。[2],A,,。,。[3]、,—L1—L37S0—S37[4,5]。—。P.TeilharddeChardinA、B、C、,A、B、C—。1　P.TeilharddeChardin[1],———。5。5.—,,,18。、,B。40m4.。、,。:Hipparionhoufe-　18119992　　　　　REGIONAL　GEOLOGY　OF　CHINAVol.18No.1Feb.1999　nense,Antilospiralicenti,Gazellablacki。[2]A9m3.,。、,41m2.,1～5m1.[6]“”,。13,Opdyke,50m13。。3～5121,343。。。(1):5,—1　Fig.1　ResultsofpaleomagneticmeasurementsoftheJinglesection1—;2—;3—;4—;5—;6—。23～29mOlduvai,17mReunion。,P.TeilharddeChardinBO、R。WS—1,WS—2,WS—3S15—S32。4AGauus,Keana,Mammoth。,A()2.50～3.00Ma。70　　　　　1999　2　Fig.2　ResultsofpaleomagneticmeasurementsoftheYulinsection1—;2—;3—2　30,P.TeilharddeChardin,。,60m。,,99,5。(2),Gauus(2.50～3.40Ma),KaenaMammoth。Gilbert(3.40～5.00Ma),Cochiti,Nunivak,Sidufjall,Thvera。Matuyama。,,Gauus,A()。,Gilbert。3　(1)A,Gauus,2.50～3.00Ma,。Gauus,50m(60m,10m),Gilbert。2.50～5.00Ma。Gauus71　1:—,A。Gilbert,(Epoch5,5.00Ma)[7],(3.40～5.00Ma)[8],。2.50～5.00Ma,—。(2)B—WS—1,WS—2,S15-S32,Olduvai,Reunion,1.20～2.50Ma。。(3)1930P.TeilharddeChardinC,,S1-L15,BrunhesMatuyama。0.13～1.20Ma,。,C。BC。—BC。(4)、A、B、C—1。1　、A、B、C—Table1　CorrelationoflayersA,BandCofredsoilsandtheloess-paleosolsequenceintheJingleandYulinareas(,)(Ma)L10.01S1—L15CC0.01～1.20S15—S37BBB1.20～2.50AA2.50～3.003.00～5.00,。1　TeilharddeChardinPandYoungCC.PreliminaryObservaitiononthePre-LoessicandPost-PonianFormationinWesternShansiandNorthernShensi.Men.Geol.Surv.China,Ser.A,1930,(8):1～54.2　..,1934,1(3):323～330.3　,..,1962,42(1):1～14.4　..:,1985.5　,.,().,1989,(1):24～35.6　.“”.,1994,(4):339～353.7　..,1995,38(3):311～320.8　TedfordRH,FlynnLJ,QiuZXetal.YusheBasinChina:PaleomagneticallyCalibratedMammalianBiostratigraphicStandardfortheLateNeogeneofEasternAsia.Jour.Vert.Paleont.,1991,11(4):519～526.(100)72　　　　　1999　THEDISCOVERYOFTHEZHANGJIAKOUFORMATIONINTHESANSHIJIAZIAREA,WESTERNLIAONING,ANDITSSTRATIGRAPHICSIGNIFICANCEWangJizhong,ShenLixin,ChenXiuyu,ChenAnguoandLiWenxuan(DepartmentofResourcesandEnvironmentalEngineering,ShijiazhuangInstituteofEconomics,Shijiazhuang,Hebei)Abstract　Accordingtonewinformationobtainedfrom1∶50000regionalgeologicalsurveycar-riedoutduringtheEighthFive-YearPlanperiod,theauthorsconfirmforthefirsttimetheexis-tenceoftheZhangjiakouFormationintheSanshijiazibasin,westernLiaoninganddiscusssuchproblemsasthetypesofrockfacies,featuresofrockassociations,ageassignmentandcontactre-lationshipsbetweentheoverlyingandunderlyingstrata.Keywords:　Mesozoic,ZhangjiakouFormationlithostratigraphicunits,westernLiaoning(72)THERELATIONSHIPBETWEENTHEREDSOILANDLOESS-PALEOSOLSEQUENCEINJINGLE,SHANXIPROVINCE,ANDYULIN,SHAANXIPROVINCEYueLeping,ZhangYunxiang,WangJianqi(DepartmentofGeology,NorthwestUniversity,Xi'an,Shaanxi)andZhaoTingzhou(ShaanxiBureauofGeologyandMineralExplorationandDevelopment,Xi'an,Shaanxi)Abstract　MagnetostratigraphicmeasurementsandcorrelationoflayersA,BandCofredsoilshow:(1)theJingleredsoilatJingleandHefengisjustlayerAofredsoil,inwhichtheGaussnormalpolarityzoneisrecorded,withanageof2.50～3.00Ma,correspondingtolatePliocene.RedsoilintheYulinsectionrecordstheGaussnormalandGilbertreversalpolarityzones,whoseageis2.50～5.00Ma,correspondingtoPliocene.(2)LayerBofredsoilintheJinglesection,whichcorrespondstolayerWS—1,layerWS—2,layerWS—3orlayerS15—S32oftheloess-paleosolsequence,recordstheOlduvaiandReunionnormalpolaritysubzones,andtheageis1.20～2.30Ma,correspondingtoearlyEarlyPleistocene.(3)LayerCofredsoilalongtheYulinRiverbankcorrespondsmainlytotheLishiloess,abouttheS1—S15interval,andpartiallytotheWuchengloess.Keywords:　paleomagnetism,layersA,BandCofredsoil,Jingleredsoil,loess-paleosol100　　　　　1999