(ËÊÉÊldÉ) n. 1. (Anatomy) the part of the vertebrate body where the arm or a corresponding forelimb joins the trunk: the pectoral girdle and associated structures. 2. (Anatomy) the joint at the junction of the forelimb with the pectoral girdle.
â¢ Erosion and deposition are continuous geological processes that are natural and result in relief features seen over the surface of the earth. â¢ If erosion is seen as a sequence of events, deposition takes place at last when the rock particles finally settle down on the surface of earth.
Of course, all that rock and silt, or sediment, has to go somewhere. Sometimes deposition is as dramatic as the creation of a new island, but it often affects much smaller, incremental changes in land that, over time, can become new landforms like mountains and river deltas.