决口扇沉积

三角洲平原以分流河道形成骨架砂体，在分流河道之间，发育泥炭沼泽和洼地，以及天然堤和决口扇沉积。

On delta plain , distributary channel forms framework sand bodies . Between distributary channel , peat swamp and pit , as well as natural levee and crevasse splay are developed .

致密砂岩段沉积环境主要以扇三角洲前缘水下分流河道和扇三角洲泛滥平原辫状河道为主，夹有分流河口砂坝和远砂坝及决口扇等沉积环境。

Remote Sensing Explanation and Discussion on Genesis of Crevasse Fan in Jingjiang River Sedimentary environment of the fine sandstone main includes the underwater distributary 's channel of delta frontier , braid channel of flood plain in fan-delta , estuary dam , distal bar and crevasse fan .

鱼台组为黄河古决口扇前缘洼地沉积，岩性为一套棕红色粘土，局部夹粉砂土。

Yutai formation is frontal depression sedimentary of Yellow river old crevasse splay , and its property is brown-red clay , accompanying with silt .

陕西省榆林地区延安组湖滨下三角洲平原沉积中的决口扇三角洲沉积及其意义

The characteristics and significance of the splay delta deposits in lower lacustrine delta plain , Yanan Formation ( middle jurassic ), Yulin district , shaanxi Province