【摘要】 合肥盆地安参1井的钻探,发现了既不同于北淮阳型,也不同于淮南型的石炭-二叠系。通过对安参1井石炭-二叠系的研究,认为是一套斜坡相-三角洲前缘沉积。结合北淮阳型石炭系和淮南型石炭-二叠系的沉积特征研究,提出了石炭-二叠纪沉积期在华北地台南缘存在完整的沟-弧-盆体系的认识;同时根据安参1井石炭-二叠系类型,结合地震、电法和平衡剖面恢复,认为合肥盆地的基底应该属于统一的华北型。更多还原

【Abstract】 The new type of Permo-Carboniferous strata is different from the northern Huaiyang type and Huainan type.It has been discovered through the drilling of Well Ancan-1.The Permo-Carboniferous strata in Well Ancan-1 are the slope-delta front deposit.There is a complete trench-arc-basin system in the south margin of North China platform based on the research of the three types of Permo-Carboniferous strata.Besides,the basement of Hefei basin belongs to a unique North China type according to the analysis of Permo-Carboniferous strata of Well Ancan-1 combined with the research of seismic,electricity and profile of equilibrium recovery.更多还原