沉积物的矿物和地球化学特征与盆地构造_古气候背景

沉积物的矿物和地球化学特征与盆地构造古气候背景王国栋,程日辉,于民凤,姜雪,崔坤宁,130061:构造和气候的变化是盆地充填和演化的两个主要控制因素,对沉积物而言,其主要是对沉积物类型和分布的控制从沉积物的矿物学和地球化学的角度,提取了与盆地构造和气候演变有关的主要参数,包括碳酸盐岩矿物中的13C18O石英/长石高岭石/粘土伊利石/粘土的比值,反演地质历史中盆地在构造和气候上的变化对松辽盆地白垩系的研究表明,泉三段泉四段中石英/长石低值代表了在盆地坳陷期存在着具有一定强度的构造运动伊利石/粘土和高岭石/粘土的分析反映出松辽盆地白垩世的气候经历了由泉三段沉积期气候干旱到青山口组沉积期气候湿润姚家组沉积期气候快速转向干旱嫩一段沉积期湿润的气候和嫩三四段沉积期湿热气候的演变碳酸盐岩中碳氧同位素分析显示松辽盆地在83.3Ma左右发生了海侵事件,在82.8Ma左右发生了海退事件:构造背景;古气候;矿物;地球化学;松辽盆地:P544.4:A:16715888(2006)02020206:20050405:973(2006CB701403):(1982),,,,,Email:[e-mail]:(1963),,,,,Tel:[phone],Email:[e-mail]dPaleoclimateRevealedfromMineralsandGeochemistryoftheSedimentsWANGGuodong,CHENGRihui,YUMinfeng,JIANGXue,CUIKunningCollegeofEarthSciences,JilinUniversity,Changchun130061,ChinaAbstract:Changesoftectonicsettingandclimatearetwoimportantcontrollingfactorsforbasinfillingandevolution.Theycontrolthetypesandthedistributionsofthesediments.Intheviewofmineralogyandgeochemistryofsediments,somedominatingparametersareusedtostudytheevolutionofthebasintectonicsettingandclimateinthegeologicalhistory,including13Cand18Oofcarbonates,quartz/feldspar,kaolinite/clayandillite/clay.Thelowvalueofthequarter/feldsparoccurredinQuan!andQuan∀sequencesindicatesthatthereweretectonicactivitieshappenedatthattime.Theanalysesofillite/clayandkaolinite/clayshowthattheclimatehadundergonethechangesfromaridityintheQuan!periodtohumidityintheQingshankouperiod,quicklytoaridityintheYaojiaperiod,tohumidityintheNen#period,andtohothumidityintheNen!and∀periodduringtheMiddleCretaceousinSongliaoBasin.Theanalysisofthestableisotopeofcarbonandoxygenfromthecarbonatesshowsthattherewasatransgressioneventat83.3Maandaregressioneventat82.8MainSongliao36220063()JournalofJilinUniversity(EarthScienceEdition)Vol.36No.2Mar.2006Basin.Keywords:tectonicsetting;paleoclimate;mineral;geochemistry;SongliaoBasin0,,N.B.Harris[1],[2],,,,,1[3],1.1/,,,,,,,/,,,,,,,,/,1.2,,,,,,,,,,,,,,,,13C,,13C2[4],,,,,[5]AlKNaCa[6],//,/,/,,,[7],,,[8],,CaCO3,;[9,10]13C4:(1),,2032,:12C,13C(2)CO20∃,,Sialivakou,13C6∃,N.B.Harris[1],13C(3)12CO2,,13C,CO2,,12C,13C,13C,[11]:12CO2+H13CO-313CO2+H12CO-3,12CO2+13CO2-313CO2+12CO2-3,13C,,,12C,13C,,13C,13C[12](4)13CMook[13]Ijseel,13C,13C,,,,,13C,,13C;,,13C,,,,13C,18O13C,,,,18O,[14],,18O:,,[15],,,Njitchoua[16],,18O,,18O,,;,,,,,,,3//1,/0.790%0.821%,0.683%,,0.904%,/,,,,;,,,,/,,,;,//,,204()361/Fig.1ThedistributionofproportionofquartztofeldsparinCreaceous,,,,,,,,/,/2,,,,,,,,,,,,,82.8Ma[17](3),83.3~82.8Ma,18O,82.8~82.0Ma,18O,18O,,13C82.8Ma:,,2Fig.2Thedistributionofrelativecontentofilliteandkaolinite3Fig.3Thedistributionofcarbonandoxygenstableisotopeincarbonate,12C,13C;,13C//,/,2052,:,,83.3Ma82.0Ma18O13C,13C3.8∃%,,83.3Ma,82.8Ma4(1),,/,,,,/(2)/,/13C,,13C18O,,(3)/,,(4),,,,,,,,,(5),83.3Ma,82.8Ma(References):[1]HarrisNB.EvolutionoftheCongoriftbasin,WestAfrica:aninorganicgeochemicalrecordinlacustrineshales[J].BasinResearch,2000,12:435445.[2],.[M].:,1985.LIUBaojun,ZENGYunfu.Basisoflithofaciespalaeogeographyanditsworkingmethod[M].Beijing:GeologicalPublishingHouse,1985.[3],,.[J].(),2003,33(4):479484.SONGWeihai,ZHANGXingzhou,WANGPujun.TertiarytectonicvolcaniceventsinthemiddlecontinentalmarginfromeasternChinaandtheircontroloveroilbearingbasins[J].JournalofJilinUniversity(EarthScienceEdition),2003,33(4):479484.[4]BosworthW.[J].,.,1996(3):6576.BosworthW.Thecontrollingeffectofstructuretocontinentriftbasindeposition[J].TranslatedbyTAOLingling.MarinePetroleum,1996(3):6576.[5],,,.7.0~0.73MaB.P.[J].,1998,12(1):3643.ZHONGWei,FANGXiaomin,LIJijun,etal.ThesedimentsgeochemistryrecordofevolutionofpalaeoclimateinLinxiabasinGanSuProvinceduringthenearly7.0~0.73MaB.P.[J].JouralofAridLandResourcesandEnvironment,1998,12(1):3643.[6]AplinAC.Thecompositionofauthigenicclaymineralsinrecentsediments:linkstothesupplyofunstablereactants[C]//CmanningDA,HallPL,HughesCR.Geochemistryofclayporefluidinteractions.London:Chapman&Hall,1993:81106.[7],.[J].,1991,36(1):5456.WANGSumin,LIJianren.Lakesediments-aeffectmeanofresearchforpalaeoclimate[J].ChineseScienceBulletin,1991,36(1):5456.[8].[C]//,.&&.:,1995:79.CHENZhenlou.TherecordsofcharacteristicsofearlylithogenouschangeinYunguitablelandlakecarbonate[C]//GeomorphologyandQuaternaryStudies,GSC.Physiognomy&Environment&Development.Beijing:ChineseEnvironment&SciencePress,1995:79.[9].[J].,1993,24(1):3135.WANGYunfei.ChangesinlakecarbonatechemicalsedimentsandclimateenvironmentinQinghailakeandDaihai[J].JounralofOcean&Swamp,1993,24(1):3135.(239)206()36[M].:,1992:398444.SHENZhenrong,ZHANGYufang,YANGShixiu,etal.Waterresourcescientificexperimentandresearch-Thetransferrelationshipofatmosphericwater,surfacewater,soilwaterandgroundwater[M].Beijing:ChinaScientificandTechnologicalPress,1992:398444.[4],,.[M].:,1992:215218.TANGQicheng,QUYaoguang,ZHOUYuchao.WaterresourceresearchofaridregioninChina[M].Beijing:SciencePress,1992:215218.[5],.[J].,1997(6):3541.WEIZhongyi,TANGQicheng.StudyofseveralproblemaboutsurfacewaterandgroundwaterinthearidareainNorthwestChina[J].NatureResources,1997(6):3541.[6].[J].,2001(3):19519