中文摘要：

详细在在北方江苏盆的 Gaoyou 消沉的 Paleogene Dainan 形成的沉积外形的这份报纸，类型，垂直进化，和分发模式被学习。结果显示出那个扇子三角洲，三角洲， nearshore 在 Dainan 形成时期和他们的分发模式期间开发的水下的扇子，和湖的外形被 tectonics 和 paleogeography 主要控制。扇子三角洲和 nearshore 水下的扇子外形主要在导致差错的沉淀被认为创造了实质的住所的南部的陡峭的斜坡区域发生，而三角洲外形开是分布式的，被认为到的北轻轻的斜坡经历了更少的沉淀。最后，湖的外形被显示在消沉的中心发展了，以及在扇子三角洲，三角洲，和 nearshore 的胁腹上水下的扇子外形。垂直地， Dainan 形成代表一个综合 transgressive 回归的周期，与 E ₂ d ₁ transgressive 顺序和 E ₂ d ₂ 正在是回归的顺序。沉积外形的这个分发模型在在 Gaoyou 消沉和类似的区域为 Dainan 形成预言有利水库带起一个重要作用。在 Gaoyou 消沉，在扇子三角洲的水下的支流隧道和在三角洲的水下的分支隧道的沙岩被为水库形成有利的物理性质描绘。

英文摘要：

In this paper,the type,vertical evolution,and distribution pattern of sedimentary facies of the Paleogene Dainan Formation in the Gaoyou Depression of the North Jiangsu Basin are studied in detail.Results show that fan delta,delta,nearshore subaqueous fan,and lacustrine facies developed during the Dainan Formation period and their distribution pattern was mainly controlled by tectonics and paleogeography.The fan delta and nearshore subaqueous fan facies predominantly occur in the southern steep slope region where fault-induced subsidence is thought to have created substantial accommodation,whereas the delta facies are distributed on the northern gentle slope which is thought to have experienced less subsidence.Finally,the lacustrine facies is shown to have developed in the center of the depression,as well as on the flanks of the fan delta,delta,and nearshore subaqueous fan facies.Vertically,the Dainan Formation represents an integrated transgressiveregressive cycle,with the E_2d_1 being the transgressive sequence and the E_2d_2 being the regressive sequence.This distribution model of sedimentary facies plays an important role in predicting favorable reservoir belts for the Dainan Formation in the Gaoyou Depression and similar areas.In the Gaoyou Depression,sandstones of the subaqueous distributary channels in the fan delta and the subaqueous branch channels in the delta are characterized by physical properties favorable for reservoir formation.