PRESENTATION OUTLINE
Barrier islands are long, narrow, offshore deposits of sand or sediments that run parallel to the coast line.
Barrier islands are often found in chains along the coast line and are separated from each other by narrow tidal inlets, such as the Outer Banks of North Carolina.
The Outer Banks Was formed by glaciers melting and recededing . sea levels began to rise, and flooded areas behind the beach ridges at that time. The rising waters carried sediments from those beach ridges and deposited them along shallow areas just off the new coast lines. Waves and currents continued to bring in sediments that built up, forming the barrier islands.
