Across the silty bed is a thick carpet of grass and plankton.

在沙覆盖的海床上，铺展着一层厚厚的海草和浮游生物地毯。

Possibly due to silty deposits brought on by flooding.

于洪水带来的沉积所致。

The tunnel was mainly in silty clay (III).

隧道主要质粘土(III)构成。

Long and strong toe bones, similar  to those found in modern shorebirds, suggested they have the ability  to walk in muddy or silty soil.

长而强壮的脚趾骨，类似于现代滨鸟的脚趾骨，表明它们有力在泞或土壤中行走。