白音查干凹陷断层活动对沉积的控制作用

26120033JOURNALOFEASTCHINAGEOLOGICALINSTITUTEVol26No1Mar.2003:20021211:(P00015):(1968!),,,,白音查干凹陷断层活动对沉积的控制作用张福顺樊太亮毕研斌方勇刘燕学王家亮(,100083):白音查干凹陷断层活动对沉积起着明显的控制作用北部陡坡断层沉降速率大,使得该区霍恩和冬屋地区成为持续发育的沉积中心变换构造带在白音查干凹陷主要表现为调节带,在凹陷的北坡桑合西地区古尔地区是持续发育的横向调节带,地貌上为持续存在的古构造高;南坡的白音查干调节带与达1井东调节带,分别是锡林好来与达尔其辫状河三角洲体系达尔其与翁特沉积体系的分水岭:构造;断层活动;沉积作用;白音查干凹陷:P542:A:1000-2251(2003)01-024-04,(VanWagoneretal.,1993),,(Vanvgoneretal.,1988),,,,,;,6,1(Sanelyetal.,1994),,,(,2000),(Schummetal.,1993),,,,,,,,,2,,,,,,,,,,,,,,,,,,(1),,(2)1Fig.1CorrelationchartoffaultthrowandmovingrateofTalafaultandsouthTalafault2!Fig.2DistributionofhalfgrabeninBaiyinchagandepressionbetweenAershanstageandDuhongmustage1.;2.;3.;4.;5.;6.;7..251::(1),,,,,(2),,(3)!,,,;,,(4),;3Fig.3Sketchmapofdistributionofhalfgrabenandstructuralaccommodationbelt1.;2.;3.;4;5.;6.;7.3,Faulds(1998),;(),,3.1,,:(1);(2);(3);(4),,(3)3.2262003,,,,,,,,,,,,,1,,,,,4,,:(1),;(2),,,,(3),,,,,,.2000.[J],,7(3):119~132.FauldsJE,Varga.R.J.1998.Theroleofaccommodationzonesandtransferzonesintheregionalsegmentationofextendedterrenes[A].province:Boulder,ColoradoGeologySocietyofAmericaSpecialPaper323.1~45.SanelyKeithW,McCabePJ.1994.Perspectiveonthesequencesatratigraphyofcontinentalstrata[J].AAPGBulletin,78(4):554~568.SchummSA.1993.Riveresponsetobaselevelchangeimplicationsforsequencestratigraphy[J].TheJournalofGeology,101:279~294.VanVgonerC.1998.SequencestratigraphyandmarinetononmarinefanciesarchitectureofForelandBasinstrata[M]BookCliffsUtahUSA:AAPGBulletin,1998,82(8):1607~1618.VanWagonerJC,PosamentierHW,MitchumRM,etal.1993.[A].[M].:.ControlsofFaultActivityonSedimentationinBaiyinchaganDepressionZHANGFushun,FANTailiang,BIYanbin,FANGYong,LIUYanXue,WANGJialiang(DepartmentofEnergyResources,ChinaUniversityofGeosciences,Beijing,100083,)Abstract:FaultactivityinBaiyinchagandepressionobviouslycontrolsedimentation.ThelargestsubsidencerateofthefaultonthesteepslopemakeHuoenareaandDongwuarea,bothlocateonthenorthernabruptslopetobesustaineddepocenters.Convertedtectonicbeltsinthedepressionarealltectonicaccommodationbelts.TheaccommodationbeltinGuerareaandwestSanghearea,bothlieonthenorthernslopeofthedepression,istransverseandsustained,andthetopographyisever-existingpalaeohigh.BothBaiyinchaganaccommodationbeltandeastDa-1accommodationbeltonthesouthernslopearewatersheddivides.Theformeristhewatersheddividebetweenthebraid-riverdeltasystemofXilinhaolaiandDa∀erqiandthelatterbetweenthesedimentarysystemofDa∀erqiandWengte.KeyWords:structure;faultactivity;sedimentation;Baiyinchagandepression271: