Xihu depression is situated at the middle of the Donghai shelf basin.
西湖凹陷位于东海陆架盆地中部。
Through comprehensive application of cores, logs and seismic data, tidal sand ridges are discovered in Pinghu Formation, Xihu Depression.
综合运用地震、测井、岩芯及分析化验资料，在西湖凹陷平湖组发现潮汐砂脊沉积体系。
The study of computer simulation showed that the migration directions of hydrocarbon in the Xihu Depression were mainly the west slope zone and the central anticline zone.
计算机模拟研究表明，西湖凹陷的油气运移方向主要是西部斜坡带和中央背斜带。
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