CAJ | 학술논문

通过开展二维地震资料调查和重处理，结合钻井、重磁、海陆对比等新老资料开展联合解释认为：东海陆架盆地南部中生界具有分布广、厚度大、沉积中心位于东部，新生界则呈现东西厚中间薄，新生代构造单元中的台北凸起、观音凸起和雁荡凸起上均有中生界分布；白垩系较侏罗系分布更为广泛，侏罗系西部边界为雁荡凸起东侧，白垩系西部边界以瓯江凹陷西侧为界；中生界三口钻井分析结果发现了确凿的海相标志，证实了中生界东海陆架盆地发生多次海侵，结合围区沉积特征认为侏罗纪存在南北向和东西向的海侵，白垩纪主要体现为东西向的海侵；研究区中生界发育中下侏罗统、下白垩统两套烃源岩，新生界发育古新统、始新统、渐新统和中新统四套烃源岩，具有较好的油气资源前景。
통과개전이유지진자료조사화중처리，결합찬정、중자、해륙대비등신로자료개전연합해석인위：동해륙가분지남부중생계구유분포엄、후도대、침적중심위우동부，신생계칙정현동서후중간박，신생대구조단원중적태북철기、관음철기화안탕철기상균유중생계분포；백성계교주라계분포경위엄범，주라계서부변계위안탕철기동측，백성계서부변계이구강요함서측위계；중생계삼구찬정분석결과발현료학착적해상표지，증실료중생계동해륙가분지발생다차해침，결합위구침적특정인위주라기존재남북향화동서향적해침，백성기주요체현위동서향적해침；연구구중생계발육중하주라통、하백성통량투경원암，신생계발육고신통、시신통、점신통화중신통사투경원암，구유교호적유기자원전경。
Based on the newly acquired and reprocessed seismic data, in combination with drilling data, gravity and magnet inversion and onshore and offshore correlation, the authors studied the geological characteristics of Mesozoic and Cenozoic strata in southern East China Sea Shelf Basin. With sedimentary center in the east, the Mesozoic strata of great thickness are distributed extensively over such uplift areas as Taibei, Guanyin and Yandang. The Cenozoic strata are thicker in the east and west than in the <br> central part in the study area. The southern East China Basin was a marginal depression basin in Mesozoic, with a western boundary of Jurassic on the east side of Yandang uplift, and that of Cretaceous on the west side of Oujiang Sag. More marine facies marks were found in drilling analysis, which shows that the transgression from south to north and from east to west happened in Jurassic, and that from east to west occurred in Cretaceous, in consideration of surrounding sedimentary environments. Source rocks of Lower Jurassic, Lower Cretaceous, Paleocene, Eocene, Oligocene and Miocene are well developed in the study area, so there exists a great hydrocarbon potential in the study area.