rudaceous sediment

例句：

1. 1. The river flows through a landscape of sandstone sediment and rocks.
   这条河流流经一片由砂岩沉积物和岩石构成的景观。
2. 2.The study focused on the impact of sandstone sediment on the environment.
   该研究专注于砂岩沉积物对环境的影响。
3. 3.The erosion process is responsible for the formation of sandstone sediment in riverbeds.
   侵蚀过程负责河流床中砂岩沉积物的形成。