Almost all the sediments on the continental shelf from the land-based sediment brought by rivers, while the ocean so much as.
大陆架上的沉积物几乎都是由陆地上的江河带来的泥沙，而海洋的成分很少。
2
In East China Sea shelf basin, the Mesozoic relict sediments are distributed in some central-south areas, such as Fuzhou sag, Minjiang sag and Yushan lower uplift.
东海陆架盆地中生界主要分布于盆地中南部的福州凹陷、闽江凹陷和渔山低隆起地区。
3
Since Quaternary, abundant sediments from the Pearl River in the north would be transported via shelf to slope and basinfloor, supplying the sufficient sediments for slope-confined submarine canyons.