CAJ | 학술논문

在岩芯观察的基础上,通过对钻井沉积环境的分析,结合其岩性剖面和沉积构造等资料,详细分析了天津地区黄骅坳陷全新世的沉积环境特征、类型及其展布;认为该区主要有冲积、湖沼沉积、河口湾沉积、滨浅海沉积等4种主要沉积环境.全新世为一套松散堆积层,其岩性组合和生物化石组合特征及其变化,反映了天津地区黄骅坳陷全新世以来沉积环境由滨海-近岸浅海至河口湾、潟湖、滨海平原再至冲积平原的演变.
재암심관찰적기출상,통과대찬정침적배경적분석,결합기암성부면화침적구조등자료,상세분석료천진지구황화요함전신세적침적배경특정、류형급기전포;인위해구주요유충적、호소침적、하구만침적、빈천해침적등4충주요침적배경.전신세위일투송산퇴적층,기암성조합화생물화석조합특정급기변화,반영료천진지구황화요함전신세이래침적배경유빈해-근안천해지하구만、석호、빈해평원재지충적평원적연변.
On the basis of a large volume of geological data from drill core observation and sedimentary a-nalysis, the types, features and spatial distribution of the sedimentary environment of the Holocene in the Huanghua Depression of Tianjin area are analyzed in detail. Our study shows that the depositional environment of the Holocene in this area is represented 4 different sediment types: alluvial deposits, lacustrine and palatal deposits, estuarine deposits, and shallow deposits. The holocene loose deposits and fossil assemblages contained in the deposits reflect environmental changes in Huanghua depression from coastal environment, through shallow coastal estuaries, lagoons and coastal plains, and finally to the evolution of alluvial plains.