What is silt

A sedimentary material consisting of very fine particles intermediate in size between sand and clay.Sediment particles 0.00016 – 0.0024 in. (0.004 – 0.06 mm) in diameter, regardless of mineral type. Silt is easily transported by moving currents but settles in still water.

Fine grains of soil minerals ranging between clay and sand in size. Silts are often laid down by rivers when the flood water is quiet. The diameter of silt particles ranges from 0.002 mm to 0.06 mm.

Silt is granular material of a grain size between sand and clay derived from soil or rock. Silt may occur as a soil or as suspended sediment (also known as suspended load) in a surface water body. It may also exist as soil deposited at the bottom of a water body.