(Solved): III. Features of Erosional and Depositional Coastlines (Exercise from Baldwin et al., 1994, "Oceano ...

III. Features of Erosional and Depositional Coastlines (Exercise from Baldwin et al., 1994, "Oceanography 10 Laboratory Manual", El Camino College) Defined below are typical features of erosional and depositional coastlines. a. Lagoon: shallow body of seawater generally isolated from the ocean by a barrier island. b. Barrier island: a long, narrow, wave-built island lying parallel to the mainland and separated from it by a lagoon or bay. c. Bay: an area of water bordered by land on three sides. Bays are formed as soft rocks are eroded by waves. d. Beach: a zone of loose sediment extending from below the water level to the edge of the coast. e. Sea cliff: a cliff marking the limit of marine erosion along an erosional coast. r. Headland: an area of land bordered by water on three sides. A large headland may also be called a peninsula. Headlands are shaped by erosion. The opposite of a headland is a bay. g. Sand spit: a accumulation of sand or gravel deposited down- current from a headland. Sand spots often curl at their tips. h. Marine terrace (or wave-cut terrace): narrow flat area often seen at the base of a sea cliff, caused by wave erosion