结果在凹陷内圈定了与主河口有关的扇三角洲前缘、水下扇等骨架砂体的展布，识别出了构造、岩性及复合等多种可能的有利圈闭。
ResultsSand architecture of fan delta, subaqueous fan associated with main mass sources are outlined, helping to identify potential structural, lithologic and composite traps.
该三角洲复合体由100多个沉积单元组成。每一个扇三角洲单元，可分出平原相，前缘相。
The delta complex is composed of over100sedimentary units each of which can be divided into a plain facies and a frontier facies.
该区北部形成纵向三角洲，东部形成扇三角洲，西部形成斜坡前积复合体。
Longitudinal delta is developed in the north, fan-delta in the east, and slope progradation complex in the west.
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