Costal Features Along Maracas Bay

Tides ofttimes determine the range over which sediment is deposited or eroded. Areas with high tidal ranges allow waves to reach farther up the shore, and areas with lower tidal ranges produce deprossosition at a smaller elevation interval. The tidal range is influenced by the coat and shape of the coastline. Tides do not typically cause erosion by themselves however, tidal bores can erode as the waves surge up river estuaries from the ocean. 3 Waves erode coastline as they break on shore releasing their energy the larger the wave the more energy it releases and the more sediment it moves.Coastlines with longer shores have more style for the waves to disperse their energy, while coasts with cliffs and short shore faces give little room for the wave energy to be dispersed. In these areas the wave energy breaking against the cliffs is higher, and phone line and water are compressed into cracks in the rock, forcing the rock apart, breaking it down. Sediment deposited by waves comes f rom eroded cliff faces and is moved along the coastline by the waves. This forms an abrasion or cliffed coast. Sediment deposited by rivers is the dominant influence on the amount of sediment located on a coastline. 4 Today riverine deposition at the coast is often blocked by dams and other human regulatory devices, which remove the sediment from the stream by causing it to be deposited inland. Like the ocean which shapes them, coasts are a dynamic environment with constant change. The Earths natural processes, particularly sea level rises, waves and various weather phenomena, have resulted in the erosion, accretion and reshaping of coasts as well as flooding and creation of continental shelves and drowned river valleys