GENERAL GEOLOGY

Detailed explanation-1: -SALTATION. Wind moves large grains of soil, sand, and rock by sal-tation. Saltation happens when sand-sized particles skip and bounce along in the direction that the wind is mov-ing.

Detailed explanation-2: -The movement of dunes is called dune migration. If the wind. usually blows from the same direction, dunes will move down-wind. Dune migration occurs as sand is blown over the crest from.

Detailed explanation-3: -Saltation: Saltation refers to the processes when the sand grains are lifted up into the air and suspended for a short distance before falling back to the surface with a parabolic trajectory.

Detailed explanation-4: -A dune is a mound of sand formed by the wind, usually along the beach or in a desert. Dunes form when wind blows sand into a sheltered area behind an obstacle.

Detailed explanation-5: -SALTATION: Movement of particles by a series of short bounces along the surface of the ground, and dislodging additional particles with each impact. The bouncing particles ranging in size from 0.1 to 0.5 mm usually remain within 30 cm of the surface.