沉积在深槽（曲流河中靠近凹岸一侧水最深的部位，水流流速大）的较粗的砂和砾石沉积物。它在横剖面上呈透镜状，具大型槽状交错层理。沙漠中由于细粒物质被搬走而残留下的粗粒沉积物。
河流携带的部分粗砂砾在河床上形成滞留沉积。
Some coarse gravel loaded by the river deposited in the river channel.
国内外相关研究集中于沉积对入渗的影响，忽略了入渗滞留的作用。
The study on this problem is concentrated on the effect of sediment and neglect that of detention.
主要储层沉积相为河道滞留与边滩组成的河道充填。
The main reservoir sedimentary facies is channel fill formed by channel detention and marginal bank.
应用推荐