不整合半風化巖石成巖作用研究.pdf

1、中國石油大學（華東）碩士學位論文不整合半風化巖石成巖作用研究姓名：王雨潔申請學位級別：碩士專業(yè)：地質學指導教師：吳孔友201106studyonDiagenesisofUnconformi呵Semiweathe代dRockWangⅫie(Mecha們nicEngine甜ng)DirectedbyWuK0ngyouAsSociateProfesSorAbstract。I‘hes仃uctu】呤ofuIlco時onn時c鋤bediVidedi

2、ntotll】陀elayerS：rocksdb0VetlleuIlconfo肌塒int硎沁e，weatheringclayaIldp甜eolⅢstzone，accordingtoheterogeneityoferosionandrocl(Sfomedby咖sgressinSemi一、veatheredrocks，wmchismailllycomposedofc打bonate，伊aVelandV01callicrocks，isanimpo

3、IrtaIltp叭oftlles眥tu】汜andtllefaVorablehydrocafbonaccIunulationresenroirlayerThesemi—weatheredrockfo加ationa11deVolutioniscloselyrelatedtothediageIlesis，wllichcontrolledt11efomationa11dperservationofreseⅣoirSincetllePaleozo

4、ic，ith舔unde瑪onemultip甜odstectollicmoVementsuchasCaledoniaIl，HercyniaIl，Indo—China鋤dtlleHimalay觚，觚df0medSeVeralunconfomitiesinJizhongDepressionalldtlleJunggar&lsinThese觚oareaarerichins謝wea_t11eredrocklitllolog)r鋤dbecometl

5、lefocusregionofmissnldyMultiphasetectollicaCtiVitiesledt0t11edifreremm咖∽ofnleStudyareacomplexdiageneticen啊ronment，diagenesisallddiverse，S0matmeorig砌rockstructure，composition，stmctureandotherch鋤gestodif耗rentextent，butalso

6、chaIlgedtlletypesaIlddistributionofreseⅣoirSpaceTectoIlicactiVitiesproVidetllefouIldationofDiagenesisaboutsemi、veameredAccordingt0tllenatureofdiagenesisof也ereSen，oirc鋤bediVidedimocons鋤ctiVe鋤ddeg仃uctiVediagenesisdiagenesi

7、softvvo卯es，thefomerincludingdolomitizatioll，toplasterofdissolution(especiaJlynon—integraled鋤osphericwaterduringtllefo肌ationofdissolution)andtheroleofmpture；latterrec巧stallization，cememation，compaction，pressuresolutioIlaI

8、ldfillingtheroleofsilicabaSedDissolution鋤dtectoIlicdisrumionaretllemainconstn_l_a1diagenesis，helpingt0incre硒etlleporosit)raIldiIIlpr0Vctheresenroirquali哆111particular，tlledissolutionist0producesemi—weaIlleredrock、VithseC

9、ondaryporosit)roftllemostimport鋤twayMaillly舔aCidicdissolutionfluiddissolVedc酊bonate，claymineralcements觚dfeldSpar，volcallicde嘶s觚dottlersolublecomponentsofpanicles，deVelopmentintrag舳ulardissolvedpores，interg眥ulardissolutio

10、nporesaIldi曲阻gII鋤ulardissolutionporos時鋤dotlerS_econdaDrporosit)，ofthestoragephysic甜propenyhasplayedapositive鋤deffectivetoimprovetlleroleofweathering鋤dleacllingintobllrialdissolutionCompactionandcememationarememaindestllJ