The present barrier bar was preceded by similar trending bars in the past and will be succeeded by more barrier bars in the future . 当前的堰堤砂洲是继生于过去类似走向的砂洲上的，而在以后必将有更多的堰堤砂洲相继生成。
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Barrier bar - lagoon system 障壁沙坝
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Under the guidance of theories of sedimentology , petroleum geology and sequence stratigraphy , and through the comprehensive analysis of outcropsrock , cores , well logs and testing outcomes of rock gas , this paper studies the depositional systems of neopaleozoic and the character of aeration zone in tabamiao area of ordos basin . the result indicates that the object layers are divided into two depositional systems , the barrier seacoast depositional systems are recognized on upper carboniferous taiyuan phase with tidal flat , lagoon and barrier bar sedimentary deposit 本文根据沉积学、石油地质学和层序地层学理论，综合利用地表露头、钻井岩芯、测井曲线资料和试气成果资料，对鄂尔多斯盆地塔巴庙区块晚古生代沉积体系及含气层特征进行了研究。结果表明，研究区内目的层段可以划分为2个沉积体系： ( 1 )上石炭统太原期为有障壁海岸沉积体系，发育潮坪?泻湖?障壁砂坝沉积。
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