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文章简要阐述了我国东部第三纪油气分布特点及第三纪沉积作用的关系,指出第三纪的沉积作用主要受盆地性质,盆地发育史,盆地结构及断层活动的影响所控制。表现出近物源,短距离搬运沉积物及洪水作用的浊流水动力特征比较突出,局部地区有泻湖生物礁及粒屑灰岩体的沉积形成。文中对目前勘探已证实的第三纪含油砂体作简要描述,其砂体类型包括有:水下冲积扇)或称近岸水下扇),近源三角洲,浊流水道砂,水下漫流(片流)湖棚砂,河流砂,礁灰岩—粒屑灰岩体及其他小型沿岸砂坝等。
In this paper, the relationship between Tertiary oil and gas distribution and Tertiary sedimentation in eastern China is briefly described. It is pointed out that the sedimentation of Tertiary is mainly controlled by the nature of the basin, the basin development history, basin structure and fault activity. The hydrodynamic characteristics of turbidity current which are near provenance, sediment and flood are transported in a short distance are prominent. In some areas, lacustrine reefs and granulite-limestone bodies are formed. In this paper, the current exploration proven Tertiary oil-bearing sand bodies are briefly described. The sand body types include subaqueous alluvial fans, or nearshore subaqueous fans, near-source delta, turbid water channel sand, (Sheet flow) lake shed sand, river sand, reef limestone - gravel limestone body and other small coastal sand dam.