(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.
Coastal deposition is the laying down of material on the coast by the sea. It occurs when waves lose energy or when large inputs of sediment are made into the coastal system - perhaps due to the arrival of fluvial sediment at a river estuary. Wave refraction in bays also encourages deposition due to the dispersal of wave energy.