GEOLOGY

Detailed explanation-1: -The larger, heavier particles settle out first, followed by small grains of sediment.

Detailed explanation-2: -Sediment in rivers gets deposited as the river slows down. Larger, heavier particles like pebbles and sand are deposited first, whilst the lighter silt and clay only settle if the water is almost still.

Detailed explanation-3: -Particle Deposition 1) Size – The smaller the particle (clay, silt) the slower it will settle out. Larger sediments (cobbles, boulders) will settle quickly. As the stream slows down, the larger particles settle first…

Detailed explanation-4: -However, general usage is as follows ranging from largest to smallest: boulders, cobbles, gravel, sand, silt, and clays. Sediments form from the disintegration of rocks.

Detailed explanation-5: -Particles become sorted on the basis of density, because of the energy of the transporting medium. High energy currents can carry larger fragments. As the energy decreases, heavier particles are deposited and lighter fragments continue to be transported.