18938.安徽巢湖石炭系和州組沉積學及有孔蟲地層學

1、中國科學院研究生院碩士學位論文安徽巢湖石炭系和州組沉積學及有孔蟲地層學姓名：盛青怡申請學位級別：碩士專業(yè)：古生物學與地層學指導教師：王向東201205AbstractCarboniferousandPermiancyclothemshaVealwaysbeenpaidcoIlsiderableattentionamongtheresearchesontheLatePaleozoicIceAgeTheyarethetransgressiV

2、e—regressiVed印ositionalsequencespresentintheCarboniferousandPer塒anshallowmarinesuccessionsworldwide，especiallyintheNonhemHemisphereTheyarecommonlybelieVedtesult仔omtheglobalsea—leVelchangesthatcouldbeattI’ibutedtolarge—sc

3、alewaxingandwaningofGondwananglaciersHoweVer，thecause，thetimingoftheonset，andtheaVeragecycleperiodofCarboniferousandPemliancyclothemsarestillunderdebateComparedwithNorthAmericaandEurope，onlyafewresearcheshaVebeendealtwit

4、honotherregionsTheFenghuangshansection，whichislocatedatChaohuCityofAnhuiProVinceandbelongstotheLowerYangtzeBlock，isselectedhereinasacasestudytoeValuateapossiblecyclothemicd印ositioninPaleotethyanregionForaminifersarethepr

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7、ioniscomposedofshallowsubtidaltoi11tertidalcarbonateswith丘equentlyandcyclicallyinterVeningsubaerialsiliciclastic／clayrocksand／orexposuresur白ces0nthebasisofdetailedfieldmeasurements，polishedslabandthinsectionstudies，powde

8、rX—raydif行actionexperiments，andanalysisofsedimentarystructures，l2majormicrofacies，and5tralls伊essiVe—re鏟essiVedepositionalsequencesarerecognizedinthe296一m—thickHezhouFoll[11ationSequence1d印osited丘0mthe1ateⅥsean(V3c)toearl