柴達木盆地西部阿爾金斜坡地區(qū)沉積地層與構造研究.pdf

1、蘭州大學碩士學位論文柴達木盆地西部阿爾金斜坡地區(qū)沉積地層與構造研究姓名：蔡鄭紅申請學位級別：碩士專業(yè)：構造地質學指導教師：王金榮20070501AbstractThewesternareaofQaidambasin(westernQaidarnbasin)isthemainoil—enrichedregioninQaidambasinconfinedbytheAltynandKunlunMountainorogenicbelts，who

2、setectonicsdevelopmentandevolvementbasinsareinfluencedbytheAltynstrikeslipfaultinthenorthandtheNorthernKunlunMarginFaultinthesouth，itstectonicsanddeformationsisquitecomplicated球stratigraphicsequenceandthetectonics’framew

3、orkofthisareaarecontroversialforalongtime，whichhamperedtheprospectingandexploitationofoilgasresourceseverelyInthispapertheauthorregardstheAltynorogenicboltandQaidamBasinasauniformstudyobjectBasedonthetheoriesoftectonicsg

4、eologysedimentology，thestratigraphyofstratumsequence，etc，andsynthesizedGeology，Seism，well—loggingmethodsandsoontheauthoranalysisandstudythestratumandtectonics’characteristicsofwesternOaidambasinindetail(1)Takingwholebasi

5、nstandardstratumdescriptionasfoundationanalyzesQigequanandGanchaigousections’characterisficsofthisareadeterminedthestratum’timeanewAccordingtothedivisionprincipleofdepositionstructuresequencedividesthisareainto2firstgrad

6、estratumsequences12secondgradestratumsequences56thirdgradestratumsequences(2)Throughseismsectionplane。slink—pieceexplanation，divisionprincipleofsecondgradetectonicunitisdecidedthenfromthesouthwesttonortheastthisareaisdiv

7、idedinto4secondgradetectonicunits：thrustfoldboltofQigequanHongliuquan；SliantingslipthrustorganicbeltofNorthAhatiOanchaigou；thrustbeltboforetheextrusivewedgeofXianshuiquanHonggouzi；thmstoverlapboltofYueyashan(3)Aeeordingt

8、otheanalysisontectonicskincmmics，combinedwithplatetectonicstheoryandbasinmountaincouplingtheory，analyzesthepropertiesofbasinboundariessystemly：thrustbasinboundaryintheNorthofAhatiOanchaigoua1“eaandinthesouthofQuanyagouar

9、eawhichiscontroledbytheeomprcssslantingsliptectonicsfromEocene；overlapcompressthrustbasinboundaryintheHongliuquanQigequanandHonggouzi—YueyashanwhichiscontroledbythecompressthrustfunctionofAltynfromPaleocene(4)Usingthe”Pr

10、oduce，StoreCoverEncloseTransportConservation”threorytoestimateoilgasresourceconcludedthattherehastwokindsofoilgasstoringboundarybystrikeslipthrustorogenicbeltofnorthAhati—Ganchmgouasboundary，therearetwosetsofoil—gasstori

11、ngoneisdeepandtheotherisshallow：thedeeponeisoriginal(EN1)，theshallowoneishypoproduced(N2)TheresultsindicatethatwesternQaidambasinhasagreatprospectingpotentialAndthen，reasonableexplainingthestratumandtectonics’characteris