二连盆地侏罗纪-白垩纪原型盆地恢复

二连盆地侏罗纪—白垩纪原型盆地恢复一、本文概述Overviewofthisarticle本文旨在深入探讨二连盆地自侏罗纪至白垩纪期间的原型盆地恢复问题。二连盆地作为中国北部的一个重要沉积盆地，其地质历史复杂且丰富，对于理解中国乃至全球在这一时期的地质演化过程具有重要意义。通过详细分析二连盆地的地质结构、沉积序列、构造演化等方面，本文将试图重建该盆地自侏罗纪至白垩纪的原型盆地，为深化我们对这一关键地质时期的认知提供新的视角和依据。ThisarticleaimstoexploreindepththerestorationoftheprototypebasinintheErlianBasinfromtheJurassictotheCretaceousperiod.AsanimportantsedimentarybasininnorthernChina,theErlianBasinhasacomplexandrichgeologicalhistory,whichisofgreatsignificanceforunderstandingthegeologicalevolutionprocessofChinaandeventheworldduringthisperiod.Throughadetailedanalysisofthegeologicalstructure,sedimentarysequence,andtectonicevolutionoftheErlianBasin,thisarticlewillattempttoreconstructtheprototypebasinofthebasinfromtheJurassictotheCretaceous,providinganewperspectiveandbasisfordeepeningourunderstandingofthiscriticalgeologicalperiod.在具体研究过程中，我们将综合运用地质学、地球物理学、地球化学等多学科的理论和方法，对二连盆地的沉积特征、构造样式、盆地边界、基底结构等进行深入剖析。我们还将参考前人的研究成果，结合最新的地质调查资料和数据分析，尝试提出更加合理和可靠的原型盆地恢复模型。Inthespecificresearchprocess,wewillcomprehensivelyapplytheoriesandmethodsfrommultipledisciplinessuchasgeology,geophysics,andgeochemistrytodeeplyanalyzethesedimentarycharacteristics,structuralstyles,basinboundaries,andbasementstructuresoftheErlianBasin.Wewillalsorefertopreviousresearchresults,combinethelatestgeologicalsurveydataanddataanalysis,andattempttoproposeamorereasonableandreliableprototypebasinrestorationmodel.本文的研究不仅有助于深化我们对二连盆地自身地质演化的理解，同时也能够为类似盆地的研究提供有益的参考和借鉴。我们相信，随着对二连盆地原型盆地恢复研究的不断深入，我们将会对这一重要地质时期的地壳运动、沉积作用、资源分布等方面有更加全面和深入的认识。TheresearchinthisarticlenotonlyhelpstodeepenourunderstandingofthegeologicalevolutionoftheErlianBasinitself,butalsoprovidesusefulreferenceandinspirationforthestudyofsimilarbasins.WebelievethatwiththecontinuousdeepeningofresearchontherestorationoftheprototypebasinoftheErlianBasin,wewillhaveamorecomprehensiveandin-depthunderstandingofthecrustalmovement,sedimentation,resourcedistribution,andotheraspectsofthisimportantgeologicalperiod.二、二连盆地地质背景GeologicalbackgroundofErlianBasin二连盆地位于中国北部，是一个典型的陆相沉积盆地，其地质历史可以追溯到侏罗纪至白垩纪时期。这一地质时期，盆地经历了多期的构造运动和沉积作用，形成了丰富的地质记录和多样的沉积相。TheErlianBasinislocatedinnorthernChinaandisatypicalterrestrialsedimentarybasin.ItsgeologicalhistorycanbetracedbacktotheJurassictoCretaceousperiod.Duringthisgeologicalperiod,thebasinunderwentmultipleperiodsoftectonicmovementandsedimentation,formingrichgeologicalrecordsanddiversesedimentaryfacies.侏罗纪时期，二连盆地开始形成，主要受到华北板块与西伯利亚板块之间的相互作用影响。这一时期，盆地内发生了多次火山喷发和岩浆活动，形成了大量的火山岩和侵入岩。同时，伴随着构造运动的加剧，盆地边缘开始发育冲积扇和河流沉积体系，形成了丰富的砂砾岩和泥岩沉积。DuringtheJurassicperiod,theErlianBasinbegantoform,mainlyinfluencedbytheinteractionbetweentheNorthChinaPlateandtheSiberianPlate.Duringthisperiod,multiplevolcaniceruptionsandmagmaticactivitiesoccurredinthebasin,formingalargeamountofvolcanicandintrusiverocks.Atthesametime,withtheintensificationoftectonicmovements,alluvialfansandriversedimentarysystemsbegantodevelopattheedgeofthebasin,formingabundantsand,gravel,andmudstonedeposits.进入白垩纪，二连盆地的构造格局和沉积环境发生了显著变化。随着板块运动的进一步演化，盆地内部逐渐形成了湖泊和沼泽等沉积环境，沉积了大量的泥岩、页岩和油页岩等细粒沉积物。这些沉积物不仅记录了当时的气候和环境信息，还为后续的油气生成和聚集提供了良好的条件。EnteringtheCretaceousperiod,thestructuralpatternandsedimentaryenvironmentoftheErlianBasinunderwentsignificantchanges.Withthefurtherevolutionofplatemovement,sedimentaryenvironmentssuchaslakesandswampsgraduallyformedwithinthebasin,depositingalargeamountoffine-grainedsedimentssuchasmudstone,shale,andoilshale.Thesesedimentsnotonlyrecordedtheclimateandenvironmentalinformationatthattime,butalsoprovidedfavorableconditionsforsubsequentoilandgasgenerationandaccumulation.二连盆地在这一时期还发育了多套生油层和储油层，主要包括侏罗系和白垩系的砂岩、页岩和碳酸盐岩等。这些储层具有良好的物性和含油性，是二连盆地油气勘探和开发的重要目标。Duringthisperiod,theErlianBasinalsodevelopedmultiplesetsofsourceandreservoirlayers,mainlyincludingsandstone,shale,andcarbonaterocksoftheJurassicandCretaceous.Thesereservoirshavegoodphysicalandoil-bearingpropertiesandareimportanttargetsforoilandgasexplorationanddevelopmentintheErlianBasin.二连盆地在侏罗纪至白垩纪时期经历了复杂的地质演化和沉积过程，形成了丰富的地质记录和多样的沉积相。这些地质背景信息对于理解盆地的构造演化、沉积环境和油气成藏规律具有重要意义，为后续的油气勘探和开发提供了重要的参考依据。TheErlianBasinunderwentcomplexgeologicalevolutionandsedimentaryprocessesfromtheJurassictotheCretaceous,formingrichgeologicalrecordsanddiversesedimentaryfacies.Thesegeologicalbackgroundinformationareofgreatsignificanceforunderstandingthestructuralevolution,sedimentaryenvironment,andoilandgasaccumulationlawsofthebasin,andprovideimportantreferencebasisforsubsequentoilandgasexplorationanddevelopment.三、侏罗纪—白垩纪原型盆地恢复方法RestorationmethodsforJurassicCretaceousprototypebasins恢复侏罗纪至白垩纪时期的二连盆地原型，是一项复杂且富有挑战性的地质研究工作。本文采用了多种方法和技术手段，包括古地理重建、构造恢复、沉积相分析、古气候模拟等，以期尽可能准确地描绘出这一时期的盆地原型面貌。RestoringtheprototypeoftheErlianBasinfromtheJurassictoCretaceousperiodisacomplexandchallenginggeologicalresearchtask.Thisarticleadoptsvariousmethodsandtechnicalmeans,includingpaleogeographicreconstruction,structuralrestoration,sedimentaryfaciesanalysis,paleoclimatesimulation,etc.,inordertoaccuratelydepicttheprototypeappearanceofthebasinduringthisperiodasmuchaspossible.古地理重建：基于详细的沉积学、地层学和古生物学资料，我们对二连盆地在侏罗纪至白垩纪时期的古地理环境进行了重建。通过对比研究不同时期的沉积相带分布、沉积厚度变化和古生物群落演化等信息，我们逐步恢复了盆地的古地理格局和演化历程。PaleogeographicReconstruction:Basedondetailedsedimentological,stratigraphic,andpaleontologicaldata,wereconstructedthepaleogeographicenvironmentoftheErlianBasinduringtheJurassictoCretaceousperiods.Bycomparingandstudyingthedistributionofsedimentaryfacieszones,changesinsedimentarythickness,andevolutionofpaleontologicalcommunitiesindifferentperiods,wehavegraduallyrestoredthepaleogeographicpatternandevolutionaryprocessofthebasin.构造恢复：构造恢复是盆地原型恢复中的关键步骤。我们利用地震资料、钻井数据和露头观测等多种信息，对二连盆地在侏罗纪至白垩纪时期的构造演化进行了详细分析。通过反演古构造形态、确定关键构造事件和识别断裂系统等手段，我们逐步揭示了盆地的构造演化历史。Structuralrestoration:Structuralrestorationisakeystepintherestorationofbasinprototypes.WehaveconductedadetailedanalysisofthestructuralevolutionoftheErlianBasinduringtheJurassictoCretaceousperiodusingvariousinformationsuchasseismicdata,drillingdata,andoutcropobservations.Byinvertingtheancientstructuralmorphology,identifyingkeystructuralevents,andidentifyingfaultsystems,wehavegraduallyrevealedthetectonicevolutionhistoryofthebasin.沉积相分析：沉积相分析是盆地原型恢复的基础工作。我们通过对二连盆地内不同地区的沉积相进行详细研究，包括沉积岩性、沉积序列、沉积构造和古生物组合等特征，探讨了盆地内不同沉积相带的分布和演化规律。Sedimentaryfaciesanalysis:Sedimentaryfaciesanalysisisthefundamentalworkfortherestorationofbasinprototypes.WeconductedadetailedstudyonthesedimentaryfaciesindifferentregionsoftheErlianBasin,includingsedimentarylithology,sedimentarysequences,sedimentarystructures,andpaleontologicalcombinations,toexplorethedistributionandevolutionpatternsofdifferentsedimentaryfaciesbeltsinthebasin.古气候模拟：古气候是影响盆地原型演化的重要因素之一。我们利用古气候模拟软件，结合地质资料和生物标志化合物等信息，对二连盆地在侏罗纪至白垩纪时期的古气候进行了模拟和重建。这有助于我们深入理解盆地原型演化的气候背景和环境因素。Paleoclimatesimulation:Paleoclimateisoneoftheimportantfactorsaffectingtheevolutionofbasinprototypes.Weusedpaleoclimatesimulationsoftware,combinedwithgeologicaldataandbiomarkerinformation,tosimulateandreconstructthepaleoclimateoftheErlianBasinduringtheJurassictoCretaceousperiod.Thishelpsustogainadeeperunderstandingoftheclimaticbackgroundandenvironmentalfactorsunderlyingtheevolutionofbasinprototypes.通过综合运用以上多种方法和技术手段，我们对二连盆地在侏罗纪至白垩纪时期的原型进行了恢复。这不仅有助于我们深入了解该地区的地质演化历史，也为进一步研究盆地的油气资源潜力提供了重要依据。Throughthecomprehensiveapplicationofvariousmethodsandtechnicalmeansmentionedabove,wehaverestoredtheprototypeoftheErlianBasinduringtheJurassictoCretaceousperiod.Thisnotonlyhelpsustogainadeeperunderstandingofthegeologicalevolutionhistoryoftheregion,butalsoprovidesimportantbasisforfurtherresearchontheoilandgasresourcepotentialofthebasin.四、侏罗纪—白垩纪原型盆地恢复结果RestorationResultsofJurassicCretaceousPrototypeBasin通过对二连盆地侏罗纪—白垩纪的沉积记录、构造特征以及地球动力学背景的综合分析，我们成功地恢复了该时期的原型盆地形态和演化历史。Throughacomprehensiveanalysisofthesedimentaryrecords,structuralcharacteristics,andgeodynamicbackgroundoftheJurassicCretaceousperiodintheErlianBasin,wehavesuccessfullyrestoredtheprototypebasinmorphologyandevolutionaryhistoryofthatperiod.恢复结果显示，侏罗纪早期，二连盆地处于裂陷初期，盆地边缘的断陷活动较为强烈，形成了多个小型断陷盆地。这些断陷盆地内沉积了厚层的河流相和湖泊相沉积物，反映了当时盆地的构造活动以及气候条件。TherestorationresultsshowthatintheearlyJurassic,theErlianBasinwasintheearlystageofrifting,andthefaultactivityattheedgeofthebasinwasrelativelystrong,formingmultiplesmallfaultbasins.Thesefaultbasinsweredepositedwiththicklayersoffluvialandlacustrinesediments,reflectingthetectonicactivityandclimaticconditionsofthebasinatthattime.进入侏罗纪中期，二连盆地的裂陷活动逐渐减弱，盆地逐渐过渡为坳陷盆地。此时，盆地内部的沉积物逐渐转变为河流相和三角洲相沉积，表明盆地的地形逐渐平坦，水体逐渐连通。InthemiddleJurassicperiod,theriftactivityintheErlianBasingraduallyweakened,andthebasingraduallytransitionedintoadepressionbasin.Atthispoint,thesedimentinsidethebasingraduallytransformsintofluvialanddeltadeposits,indicatingthattheterrainofthebasinisgraduallyflatandthewaterbodiesaregraduallyconnected.到了侏罗纪晚期至白垩纪早期，二连盆地的构造活动基本停止，盆地进入稳定沉积阶段。此时，盆地内沉积了厚层的湖泊相和沼泽相沉积物，形成了丰富的烃源岩和储层。InthelateJurassictoearlyCretaceous,thetectonicactivityintheErlianBasinbasicallystopped,andthebasinenteredastablesedimentarystage.Atthistime,thicklayersoflacustrineandswampsedimentsweredepositedinthebasin,formingabundantsourcerocksandreservoirs.白垩纪中期以后，二连盆地开始受到周缘造山带的挤压作用，盆地逐渐抬升并遭受剥蚀。这一过程导致盆地内早期的沉积记录被部分或全部剥蚀，使得盆地的演化历史在一定程度上变得模糊。AfterthemidCretaceousperiod,theErlianBasinbegantobecompressedbytheperipheralorogenicbelt,graduallyupliftedandsubjectedtoerosion.Thisprocessleadstopartialorcompleteerosionoftheearlysedimentaryrecordsinthebasin,makingtheevolutionaryhistoryofthebasinsomewhatblurred.通过对二连盆地侏罗纪—白垩纪的原型盆地恢复，我们不仅深入了解了该时期的盆地构造演化历史，还为后续的油气勘探和资源评价提供了重要的地质背景信息。这些恢复结果不仅有助于我们认识二连盆地的地质特征，也为理解相似盆地的形成和演化提供了有益的参考。ByrestoringtheprototypebasinoftheErlianBasinduringtheJurassicCretaceousperiod,wenotonlygainedadeepunderstandingofthebasin'stectonicevolutionhistoryduringthatperiod,butalsoprovidedimportantgeologicalbackgroundinformationforsubsequentoilandgasexplorationandresourceevaluation.TheserestorationresultsnotonlyhelpusunderstandthegeologicalcharacteristicsoftheErlianBasin,butalsoprovideusefulreferencesforunderstandingtheformationandevolutionofsimilarbasins.五、盆地恢复结果的地质意义Thegeologicalsignificanceofbasinrestorationresults通过对二连盆地侏罗纪—白垩纪原型盆地的恢复研究，我们获得了一系列关于盆地形成、演化和构造特征的重要信息，这些信息对于深入理解盆地地质历史、油气资源勘探和开发，以及区域地质学研究具有重要的地质意义。ThroughtherestorationstudyoftheJurassicCretaceousprototypebasinintheErlianBasin,wehaveobtainedaseriesofimportantinformationabouttheformation,evolution,andstructuralcharacteristicsofthebasin.Thisinformationisofgreatgeologicalsignificanceforadeeperunderstandingofthegeologicalhistoryofthebasin,explorationanddevelopmentofoilandgasresources,andregionalgeologicalresearch.盆地恢复结果的准确性直接关系到油气资源勘探的效率和成功率。通过对原型盆地的恢复，我们可以更准确地判断盆地的沉积环境、古地理格局和构造演化历史，进而分析盆地的油气生成、运移和聚集规律。这有助于指导油气勘探的选区、评价和部署，提高勘探效益和资源利用率。Theaccuracyofbasinrestorationresultsisdirectlyrelatedtotheefficiencyandsuccessrateofoilandgasresourceexploration.Byrestoringtheprototypebasin,wecanmoreaccuratelydeterminethesedimentaryenvironment,paleogeographicpattern,andtectonicevolutionhistoryofthebasin,andthenanalyzetherulesofoilandgasgeneration,migration,andaccumulationinthebasin.Thishelpsguidetheselection,evaluation,anddeploymentofoilandgasexploration,improvingexplorationefficiencyandresourceutilization.盆地恢复结果对于区域地质学研究具有重要的参考价值。二连盆地作为中亚造山带的一个重要组成部分，其形成和演化过程与周缘造山带的演化密切相关。通过对原型盆地的恢复，我们可以更深入地了解中亚造山带的构造格局、演化历史以及板块相互作用机制，为区域地质学研究提供重要的数据和理论支持。Theresultsofbasinrestorationhaveimportantreferencevalueforregionalgeologicalresearch.AsanimportantcomponentoftheCentralAsianorogenicbelt,theformationandevolutionoftheErlianBasinarecloselyrelatedtotheevolutionoftheperipheralorogenicbelt.Byrestoringtheprototypebasin,wecangainadeeperunderstandingofthestructuralpattern,evolutionaryhistory,andplateinteractionmechanismsoftheCentralAsianorogenicbelt,providingimportantdataandtheoreticalsupportforregionalgeologicalresearch.盆地恢复结果还有助于深化我们对地球动力学过程的认识。侏罗纪—白垩纪是地球历史上一个重要的构造活动期，期间发生了多期次的板块俯冲、碰撞、转换和裂谷作用等地球动力学过程。通过对二连盆地原型盆地的恢复，我们可以更详细地揭示这些地球动力学过程在盆地形成和演化中的具体作用和影响，为地球科学研究提供新的视角和思路。Theresultsofbasinrestorationalsocontributetodeepeningourunderstandingofgeodynamicprocesses.TheJurassicCretaceousperiodwasanimportantperiodoftectonicactivityinEarth'shistory,duringwhichmultipleperiodsofplatesubduction,collision,transformation,andriftingoccurredintheEarth'sdynamics.ByrestoringtheprototypebasinoftheErlianBasin,wecanrevealinmoredetailthespecificrolesandimpactsofthesegeodynamicprocessesintheformationandevolutionofthebasin,providingnewperspectivesandideasforgeoscienceresearch.二连盆地侏罗纪—白垩纪原型盆地恢复研究具有重要的地质意义，它不仅有助于指导油气资源勘探和开发，还为区域地质学和地球科学研究提供了新的数据和理论支持。未来随着研究的深入和技术的进步，我们有望对二连盆地的地质历史和演化过程获得更加全面和深入的认识。TherestorationresearchoftheJurassicCretaceousprototypebasinintheErlianBasinhasimportantgeologicalsignificance.Itnotonlyhelpsguidetheexplorationanddevelopmentofoilandgasresources,butalsoprovidesnewdataandtheoreticalsupportforregionalgeologyandearthscienceresearch.Inthefuture,withthedeepeningofresearchandtechnologicalprogress,weareexpectedtogainamorecomprehensiveandin-depthunderstandingofthegeologicalhistoryandevolutionaryprocessoftheErlianBasin.六、结论Conclusion本研究对二连盆地侏罗纪至白垩纪的原型盆地恢复进行了深入的分析和研究，通过综合地质、地球物理和地球化学等多方面的数据，揭示了该时期盆地的演化历程和特征。Thisstudyconductedin-depthanalysisandresearchontherestorationoftheprototypebasinoftheErlianBasinfromtheJurassictotheCretaceous.Throughcomprehensivegeological,geophysical,andgeochemicaldata,theevolutionprocessandcharacteristicsofthebasinduringthisperiodwererevealed.在侏罗纪时期，二连盆地主要表现为一个大型内陆湖盆，沉积环境多样，包括河流、湖泊、三角洲等。随着地壳运动和气候变化的影响，白垩纪时期盆地的沉积环境发生了显著的变化，湖泊面积缩小，河流作用增强，同时出现了沼泽等新的沉积环境。这些变化不仅反映了盆地在不同时期的沉积特征，也为我们理解盆地的形成和演化提供了重要的线索。DuringtheJurassicperiod,theErlianBasinwasmainlycharacterizedbyalargei