二連盆地侏羅紀—白堊紀原型盆地恢復一、本文概述Overviewofthisarticle本文旨在深入探討二連盆地自侏羅紀至白堊紀期間的原型盆地恢復問題。二連盆地作為中國北部的一個重要沉積盆地，其地質歷史復雜且豐富，對于理解中國乃至全球在這一時期的地質演化過程具有重要意義。通過詳細分析二連盆地的地質結構、沉積序列、構造演化等方面，本文將試圖重建該盆地自侏羅紀至白堊紀的原型盆地，為深化我們對這一關鍵地質時期的認知提供新的視角和依據。ThisarticleaimstoexploreindepththerestorationoftheprototypebasinintheErlianBasinfromtheJurassictotheCretaceousperiod.AsanimportantsedimentarybasininnorthernChina,theErlianBasinhasacomplexandrichgeologicalhistory,whichisofgreatsignificanceforunderstandingthegeologicalevolutionprocessofChinaandeventheworldduringthisperiod.Throughadetailedanalysisofthegeologicalstructure,sedimentarysequence,andtectonicevolutionoftheErlianBasin,thisarticlewillattempttoreconstructtheprototypebasinofthebasinfromtheJurassictotheCretaceous,providinganewperspectiveandbasisfordeepeningourunderstandingofthiscriticalgeologicalperiod.在具體研究過程中，我們將綜合運用地質學、地球物理學、地球化學等多學科的理論和方法，對二連盆地的沉積特征、構造樣式、盆地邊界、基底結構等進行深入剖析。我們還將參考前人的研究成果，結合最新的地質調查資料和數據分析，嘗試提出更加合理和可靠的原型盆地恢復模型。Inthespecificresearchprocess,wewillcomprehensivelyapplytheoriesandmethodsfrommultipledisciplinessuchasgeology,geophysics,andgeochemistrytodeeplyanalyzethesedimentarycharacteristics,structuralstyles,basinboundaries,andbasementstructuresoftheErlianBasin.Wewillalsorefertopreviousresearchresults,combinethelatestgeologicalsurveydataanddataanalysis,andattempttoproposeamorereasonableandreliableprototypebasinrestorationmodel.本文的研究不僅有助于深化我們對二連盆地自身地質演化的理解，同時也能夠為類似盆地的研究提供有益的參考和借鑒。我們相信，隨著對二連盆地原型盆地恢復研究的不斷深入，我們將會對這一重要地質時期的地殼運動、沉積作用、資源分布等方面有更加全面和深入的認識。TheresearchinthisarticlenotonlyhelpstodeepenourunderstandingofthegeologicalevolutionoftheErlianBasinitself,butalsoprovidesusefulreferenceandinspirationforthestudyofsimilarbasins.WebelievethatwiththecontinuousdeepeningofresearchontherestorationoftheprototypebasinoftheErlianBasin,wewillhaveamorecomprehensiveandin-depthunderstandingofthecrustalmovement,sedimentation,resourcedistribution,andotheraspectsofthisimportantgeologicalperiod.二、二連盆地地質背景GeologicalbackgroundofErlianBasin二連盆地位于中國北部，是一個典型的陸相沉積盆地，其地質歷史可以追溯到侏羅紀至白堊紀時期。這一地質時期，盆地經歷了多期的構造運動和沉積作用，形成了豐富的地質記錄和多樣的沉積相。TheErlianBasinislocatedinnorthernChinaandisatypicalterrestrialsedimentarybasin.ItsgeologicalhistorycanbetracedbacktotheJurassictoCretaceousperiod.Duringthisgeologicalperiod,thebasinunderwentmultipleperiodsoftectonicmovementandsedimentation,formingrichgeologicalrecordsanddiversesedimentaryfacies.侏羅紀時期，二連盆地開始形成，主要受到華北板塊與西伯利亞板塊之間的相互作用影響。這一時期，盆地內發(fā)生了多次火山噴發(fā)和巖漿活動，形成了大量的火山巖和侵入巖。同時，伴隨著構造運動的加劇，盆地邊緣開始發(fā)育沖積扇和河流沉積體系，形成了豐富的砂礫巖和泥巖沉積。DuringtheJurassicperiod,theErlianBasinbegantoform,mainlyinfluencedbytheinteractionbetweentheNorthChinaPlateandtheSiberianPlate.Duringthisperiod,multiplevolcaniceruptionsandmagmaticactivitiesoccurredinthebasin,formingalargeamountofvolcanicandintrusiverocks.Atthesametime,withtheintensificationoftectonicmovements,alluvialfansandriversedimentarysystemsbegantodevelopattheedgeofthebasin,formingabundantsand,gravel,andmudstonedeposits.進入白堊紀，二連盆地的構造格局和沉積環(huán)境發(fā)生了顯著變化。隨著板塊運動的進一步演化，盆地內部逐漸形成了湖泊和沼澤等沉積環(huán)境，沉積了大量的泥巖、頁巖和油頁巖等細粒沉積物。這些沉積物不僅記錄了當時的氣候和環(huán)境信息，還為后續(xù)的油氣生成和聚集提供了良好的條件。EnteringtheCretaceousperiod,thestructuralpatternandsedimentaryenvironmentoftheErlianBasinunderwentsignificantchanges.Withthefurtherevolutionofplatemovement,sedimentaryenvironmentssuchaslakesandswampsgraduallyformedwithinthebasin,depositingalargeamountoffine-grainedsedimentssuchasmudstone,shale,andoilshale.Thesesedimentsnotonlyrecordedtheclimateandenvironmentalinformationatthattime,butalsoprovidedfavorableconditionsforsubsequentoilandgasgenerationandaccumulation.二連盆地在這一時期還發(fā)育了多套生油層和儲油層，主要包括侏羅系和白堊系的砂巖、頁巖和碳酸鹽巖等。這些儲層具有良好的物性和含油性，是二連盆地油氣勘探和開發(fā)的重要目標。Duringthisperiod,theErlianBasinalsodevelopedmultiplesetsofsourceandreservoirlayers,mainlyincludingsandstone,shale,andcarbonaterocksoftheJurassicandCretaceous.Thesereservoirshavegoodphysicalandoil-bearingpropertiesandareimportanttargetsforoilandgasexplorationanddevelopmentintheErlianBasin.二連盆地在侏羅紀至白堊紀時期經歷了復雜的地質演化和沉積過程，形成了豐富的地質記錄和多樣的沉積相。這些地質背景信息對于理解盆地的構造演化、沉積環(huán)境和油氣成藏規(guī)律具有重要意義，為后續(xù)的油氣勘探和開發(fā)提供了重要的參考依據。TheErlianBasinunderwentcomplexgeologicalevolutionandsedimentaryprocessesfromtheJurassictotheCretaceous,formingrichgeologicalrecordsanddiversesedimentaryfacies.Thesegeologicalbackgroundinformationareofgreatsignificanceforunderstandingthestructuralevolution,sedimentaryenvironment,andoilandgasaccumulationlawsofthebasin,andprovideimportantreferencebasisforsubsequentoilandgasexplorationanddevelopment.三、侏羅紀—白堊紀原型盆地恢復方法RestorationmethodsforJurassicCretaceousprototypebasins恢復侏羅紀至白堊紀時期的二連盆地原型，是一項復雜且富有挑戰(zhàn)性的地質研究工作。本文采用了多種方法和技術手段，包括古地理重建、構造恢復、沉積相分析、古氣候模擬等，以期盡可能準確地描繪出這一時期的盆地原型面貌。RestoringtheprototypeoftheErlianBasinfromtheJurassictoCretaceousperiodisacomplexandchallenginggeologicalresearchtask.Thisarticleadoptsvariousmethodsandtechnicalmeans,includingpaleogeographicreconstruction,structuralrestoration,sedimentaryfaciesanalysis,paleoclimatesimulation,etc.,inordertoaccuratelydepicttheprototypeappearanceofthebasinduringthisperiodasmuchaspossible.古地理重建：基于詳細的沉積學、地層學和古生物學資料，我們對二連盆地在侏羅紀至白堊紀時期的古地理環(huán)境進行了重建。通過對比研究不同時期的沉積相帶分布、沉積厚度變化和古生物群落演化等信息，我們逐步恢復了盆地的古地理格局和演化歷程。PaleogeographicReconstruction:Basedondetailedsedimentological,stratigraphic,andpaleontologicaldata,wereconstructedthepaleogeographicenvironmentoftheErlianBasinduringtheJurassictoCretaceousperiods.Bycomparingandstudyingthedistributionofsedimentaryfacieszones,changesinsedimentarythickness,andevolutionofpaleontologicalcommunitiesindifferentperiods,wehavegraduallyrestoredthepaleogeographicpatternandevolutionaryprocessofthebasin.構造恢復：構造恢復是盆地原型恢復中的關鍵步驟。我們利用地震資料、鉆井數據和露頭觀測等多種信息，對二連盆地在侏羅紀至白堊紀時期的構造演化進行了詳細分析。通過反演古構造形態(tài)、確定關鍵構造事件和識別斷裂系統等手段，我們逐步揭示了盆地的構造演化歷史。Structuralrestoration:Structuralrestorationisakeystepintherestorationofbasinprototypes.WehaveconductedadetailedanalysisofthestructuralevolutionoftheErlianBasinduringtheJurassictoCretaceousperiodusingvariousinformationsuchasseismicdata,drillingdata,andoutcropobservations.Byinvertingtheancientstructuralmorphology,identifyingkeystructuralevents,andidentifyingfaultsystems,wehavegraduallyrevealedthetectonicevolutionhistoryofthebasin.沉積相分析：沉積相分析是盆地原型恢復的基礎工作。我們通過對二連盆地內不同地區(qū)的沉積相進行詳細研究，包括沉積巖性、沉積序列、沉積構造和古生物組合等特征，探討了盆地內不同沉積相帶的分布和演化規(guī)律。Sedimentaryfaciesanalysis:Sedimentaryfaciesanalysisisthefundamentalworkfortherestorationofbasinprototypes.WeconductedadetailedstudyonthesedimentaryfaciesindifferentregionsoftheErlianBasin,includingsedimentarylithology,sedimentarysequences,sedimentarystructures,andpaleontologicalcombinations,toexplorethedistributionandevolutionpatternsofdifferentsedimentaryfaciesbeltsinthebasin.古氣候模擬：古氣候是影響盆地原型演化的重要因素之一。我們利用古氣候模擬軟件，結合地質資料和生物標志化合物等信息，對二連盆地在侏羅紀至白堊紀時期的古氣候進行了模擬和重建。這有助于我們深入理解盆地原型演化的氣候背景和環(huán)境因素。Paleoclimatesimulation:Paleoclimateisoneoftheimportantfactorsaffectingtheevolutionofbasinprototypes.Weusedpaleoclimatesimulationsoftware,combinedwithgeologicaldataandbiomarkerinformation,tosimulateandreconstructthepaleoclimateoftheErlianBasinduringtheJurassictoCretaceousperiod.Thishelpsustogainadeeperunderstandingoftheclimaticbackgroundandenvironmentalfactorsunderlyingtheevolutionofbasinprototypes.通過綜合運用以上多種方法和技術手段，我們對二連盆地在侏羅紀至白堊紀時期的原型進行了恢復。這不僅有助于我們深入了解該地區(qū)的地質演化歷史，也為進一步研究盆地的油氣資源潛力提供了重要依據。Throughthecomprehensiveapplicationofvariousmethodsandtechnicalmeansmentionedabove,wehaverestoredtheprototypeoftheErlianBasinduringtheJurassictoCretaceousperiod.Thisnotonlyhelpsustogainadeeperunderstandingofthegeologicalevolutionhistoryoftheregion,butalsoprovidesimportantbasisforfurtherresearchontheoilandgasresourcepotentialofthebasin.四、侏羅紀—白堊紀原型盆地恢復結果RestorationResultsofJurassicCretaceousPrototypeBasin通過對二連盆地侏羅紀—白堊紀的沉積記錄、構造特征以及地球動力學背景的綜合分析，我們成功地恢復了該時期的原型盆地形態(tài)和演化歷史。Throughacomprehensiveanalysisofthesedimentaryrecords,structuralcharacteristics,andgeodynamicbackgroundoftheJurassicCretaceousperiodintheErlianBasin,wehavesuccessfullyrestoredtheprototypebasinmorphologyandevolutionaryhistoryofthatperiod.恢復結果顯示，侏羅紀早期，二連盆地處于裂陷初期，盆地邊緣的斷陷活動較為強烈，形成了多個小型斷陷盆地。這些斷陷盆地內沉積了厚層的河流相和湖泊相沉積物，反映了當時盆地的構造活動以及氣候條件。TherestorationresultsshowthatintheearlyJurassic,theErlianBasinwasintheearlystageofrifting,andthefaultactivityattheedgeofthebasinwasrelativelystrong,formingmultiplesmallfaultbasins.Thesefaultbasinsweredepositedwiththicklayersoffluvialandlacustrinesediments,reflectingthetectonicactivityandclimaticconditionsofthebasinatthattime.進入侏羅紀中期，二連盆地的裂陷活動逐漸減弱，盆地逐漸過渡為坳陷盆地。此時，盆地內部的沉積物逐漸轉變?yōu)楹恿飨嗪腿侵尴喑练e，表明盆地的地形逐漸平坦，水體逐漸連通。InthemiddleJurassicperiod,theriftactivityintheErlianBasingraduallyweakened,andthebasingraduallytransitionedintoadepressionbasin.Atthispoint,thesedimentinsidethebasingraduallytransformsintofluvialanddeltadeposits,indicatingthattheterrainofthebasinisgraduallyflatandthewaterbodiesaregraduallyconnected.到了侏羅紀晚期至白堊紀早期，二連盆地的構造活動基本停止，盆地進入穩(wěn)定沉積階段。此時，盆地內沉積了厚層的湖泊相和沼澤相沉積物，形成了豐富的烴源巖和儲層。InthelateJurassictoearlyCretaceous,thetectonicactivityintheErlianBasinbasicallystopped,andthebasinenteredastablesedimentarystage.Atthistime,thicklayersoflacustrineandswampsedimentsweredepositedinthebasin,formingabundantsourcerocksandreservoirs.白堊紀中期以后，二連盆地開始受到周緣造山帶的擠壓作用，盆地逐漸抬升并遭受剝蝕。這一過程導致盆地內早期的沉積記錄被部分或全部剝蝕，使得盆地的演化歷史在一定程度上變得模糊。AfterthemidCretaceousperiod,theErlianBasinbegantobecompressedbytheperipheralorogenicbelt,graduallyupliftedandsubjectedtoerosion.Thisprocessleadstopartialorcompleteerosionoftheearlysedimentaryrecordsinthebasin,makingtheevolutionaryhistoryofthebasinsomewhatblurred.通過對二連盆地侏羅紀—白堊紀的原型盆地恢復，我們不僅深入了解了該時期的盆地構造演化歷史，還為后續(xù)的油氣勘探和資源評價提供了重要的地質背景信息。這些恢復結果不僅有助于我們認識二連盆地的地質特征，也為理解相似盆地的形成和演化提供了有益的參考。ByrestoringtheprototypebasinoftheErlianBasinduringtheJurassicCretaceousperiod,wenotonlygainedadeepunderstandingofthebasin'stectonicevolutionhistoryduringthatperiod,butalsoprovidedimportantgeologicalbackgroundinformationforsubsequentoilandgasexplorationandresourceevaluation.TheserestorationresultsnotonlyhelpusunderstandthegeologicalcharacteristicsoftheErlianBasin,butalsoprovideusefulreferencesforunderstandingtheformationandevolutionofsimilarbasins.五、盆地恢復結果的地質意義Thegeologicalsignificanceofbasinrestorationresults通過對二連盆地侏羅紀—白堊紀原型盆地的恢復研究，我們獲得了一系列關于盆地形成、演化和構造特征的重要信息，這些信息對于深入理解盆地地質歷史、油氣資源勘探和開發(fā)，以及區(qū)域地質學研究具有重要的地質意義。ThroughtherestorationstudyoftheJurassicCretaceousprototypebasinintheErlianBasin,wehaveobtainedaseriesofimportantinformationabouttheformation,evolution,andstructuralcharacteristicsofthebasin.Thisinformationisofgreatgeologicalsignificanceforadeeperunderstandingofthegeologicalhistoryofthebasin,explorationanddevelopmentofoilandgasresources,andregionalgeologicalresearch.盆地恢復結果的準確性直接關系到油氣資源勘探的效率和成功率。通過對原型盆地的恢復，我們可以更準確地判斷盆地的沉積環(huán)境、古地理格局和構造演化歷史，進而分析盆地的油氣生成、運移和聚集規(guī)律。這有助于指導油氣勘探的選區(qū)、評價和部署，提高勘探效益和資源利用率。Theaccuracyofbasinrestorationresultsisdirectlyrelatedtotheefficiencyandsuccessrateofoilandgasresourceexploration.Byrestoringtheprototypebasin,wecanmoreaccuratelydeterminethesedimentaryenvironment,paleogeographicpattern,andtectonicevolutionhistoryofthebasin,andthenanalyzetherulesofoilandgasgeneration,migration,andaccumulationinthebasin.Thishelpsguidetheselection,evaluation,anddeploymentofoilandgasexploration,improvingexplorationefficiencyandresourceutilization.盆地恢復結果對于區(qū)域地質學研究具有重要的參考價值。二連盆地作為中亞造山帶的一個重要組成部分，其形成和演化過程與周緣造山帶的演化密切相關。通過對原型盆地的恢復，我們可以更深入地了解中亞造山帶的構造格局、演化歷史以及板塊相互作用機制，為區(qū)域地質學研究提供重要的數據和理論支持。Theresultsofbasinrestorationhaveimportantreferencevalueforregionalgeologicalresearch.AsanimportantcomponentoftheCentralAsianorogenicbelt,theformationandevolutionoftheErlianBasinarecloselyrelatedtotheevolutionoftheperipheralorogenicbelt.Byrestoringtheprototypebasin,wecangainadeeperunderstandingofthestructuralpattern,evolutionaryhistory,andplateinteractionmechanismsoftheCentralAsianorogenicbelt,providingimportantdataandtheoreticalsupportforregionalgeologicalresearch.盆地恢復結果還有助于深化我們對地球動力學過程的認識。侏羅紀—白堊紀是地球歷史上一個重要的構造活動期，期間發(fā)生了多期次的板塊俯沖、碰撞、轉換和裂谷作用等地球動力學過程。通過對二連盆地原型盆地的恢復，我們可以更詳細地揭示這些地球動力學過程在盆地形成和演化中的具體作用和影響，為地球科學研究提供新的視角和思路。Theresultsofbasinrestorationalsocontributetodeepeningourunderstandingofgeodynamicprocesses.TheJurassicCretaceousperiodwasanimportantperiodoftectonicactivityinEarth'shistory,duringwhichmultipleperiodsofplatesubduction,collision,transformation,andriftingoccurredintheEarth'sdynamics.ByrestoringtheprototypebasinoftheErlianBasin,wecanrevealinmoredetailthespecificrolesandimpactsofthesegeodynamicprocessesintheformationandevolutionofthebasin,providingnewperspectivesandideasforgeoscienceresearch.二連盆地侏羅紀—白堊紀原型盆地恢復研究具有重要的地質意義，它不僅有助于指導油氣資源勘探和開發(fā)，還為區(qū)域地質學和地球科學研究提供了新的數據和理論支持。未來隨著研究的深入和技術的進步，我們有望對二連盆地的地質歷史和演化過程獲得更加全面和深入的認識。TherestorationresearchoftheJurassicCretaceousprototypebasinintheErlianBasinhasimportantgeologicalsignificance.Itnotonlyhelpsguidetheexplorationanddevelopmentofoilandgasresources,butalsoprovidesnewdataandtheoreticalsupportforregionalgeologyandearthscienceresearch.Inthefuture,withthedeepeningofresearchandtechnologicalprogress,weareexpectedtogainamorecomprehensiveandin-depthunderstandingofthegeologicalhistoryandevolutionaryprocessoftheErlianBasin.六、結論Conclusion本研究對二連盆地侏羅紀至白堊紀的原型盆地恢復進行了深入的分析和研究，通過綜合地質、地球物理和地球化學等多方面的數據，揭示了該時期盆地的演化歷程和特征。Thisstudyconductedin-depthanalysisandresearchontherestorationoftheprototypebasinoftheErlianBasinfromtheJurassictotheCretaceous.Throughcomprehensivegeological,geophysical,andgeochemicaldata,theevolutionprocessandcharacteristicsofthebasinduringthisperiodwererevealed.在侏羅紀時期，二連盆地主要表現為一個大型內陸湖盆，沉積環(huán)境多樣，包括河流、湖泊、三角洲等。隨著地殼運動和氣候變化的影響，白堊紀時期盆地的沉積環(huán)境發(fā)生了顯著的變化，湖泊面積縮小，河流作用增強，同時出現了沼澤等新的沉積環(huán)境。這些變化不僅反映了盆地在不同時期的沉積特征，也為我們理解盆地的形成和演化提供了重要的線索。DuringtheJurassicperiod,theErlianBasinwasmainlycharacterizedbyalargei