東海盆地福州凹陷中生界地層厘定及其油氣地質(zhì)意義

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中圖分類號：P736.22 文獻標(biāo)志碼：A 文章編號：2095-1329（2025）02-0072-08

Abstract：Integratedaalyssofostratigraphicronostratigraphc，ithostratigrapicndesmicstratigraphcatarecoducted to investigate theMesozoic stratigraphicframeworkandbasin evolutionoftheFuzhousag.Theresultsshow：（1）Jurassicstrataare identifedinteprCeoicsucesnasdoologialassblages，cofoilcodsdiesckgeolog; （2）Seismicintepretatioandblancedcro-sectionrestorationindicateteFuzhouandDiaobeisagsforedaunifedJurassicbasin witheast-thickegadutegsdimetarypckag，dsdstatigrapictetureddepoeereo sector;（3）DuringCretaceous，thebasinshoscontiuousdevelopmentwithortheast-tickeningstrataandnortheastwardmigrationof depocenter; （4）CenoziciftingseparatedthesagsbytheYudongLowUplift，disruptingMesozoiccontiuityTheJurassicsourerocks arewidelydistributedinFuzousagithminalaterationbylateCenozic tectonsmandvolanism，sugestingfavorablecoditions forhydrocarbonaccumulation.Thesefindings providenew insightsintothepetroleumpotentialofthiscontinentalmarginbasin.

Keywords：fuzhousag;themesooic;stratigraphicagedetermination;sporopollnsassemblage;petroleumgeologicalsignfance

分布范圍還存在諸多爭議，這已成為制約區(qū)域內(nèi)下一步油氣勘探的關(guān)鍵地質(zhì)問題[16-17]。（剩余10312字）