Describe and explain the cause and effects of sea level change on coastal landforms

The main effect of rising and lowering of ocean train is the movement of the position of the coast. As ocean level rises, the coastline is travel toward the fine-tune. Geologists refer to this movement as a transgression. Conversely, if the sea level drops, the coastline moves appear toward the sea, or a regression. The effect of transgressions is most readily seen as the sea floods, river or glacial valleys, forming drowned valleys or fjords, respectively.Although not prominent on our coasts, this is a common feature on the East Coast of the United States. on that point are two classes of sea level movement, localized or eustatic. place sea level changes only affect a limited electron orbit of coastline and can be pass waterd by tectonic movements or rapid inflow (or removal) of sediment. Eustatic changes refer to the removal or addition of piddle to the entire globular ocean system, thus lowering or raising sea levels worldwide.Eustatic changes are brought on by the remo val and locking up of ocean water in glaciers, or by major plate tectonic movements cause changes in the saturation of the ocean basins. One example of the latter is that during clipping of rapid sea-floor spreading, the spreading centers become warmer and rise, thus lowering the volume of the oceans. The reasons for sea levels change usually come after an ice age, as the temperature rises, snow and ice begin to melt globally.This affects different areas differently, as the thawing of the ice can cause either transgression or regression. In Scotland where the ice during the ice age produced a lot of pressure and pushed the land down, the land was now free to move back up, causing landforms such(prenominal) as embossed beaches. The south of England during this time will sink slightly, referable to Scotland rising. This coupled with the sea level rising means that features such as dalmatian coasts and rias, in other countries such as Norway, this can cause Fjords.Raised beaches, as the land rose, former wave cut platforms and their beaches were move out of reach from the beach. Raised beaches can be found on the west coast of Scotland and are characterised by a line of cliffs merchantman a formally wave cut platform. Along these cliffs you may take in old landforms such as wave cut notches, caves and arches, the fact that these landforms populate show that isostatic uplift could not have been constant, and so the land raised and there was a pause between the first uplift and a second uplift.During the ice age some rivers continued to flow, and these cut their valleys downwardly to the lower base level, as the ice melted the sea level rose, this caused the flooding of the lower parts of the valley and its tributaries to produce sheltered, winding inlets called rias. carriage dog coasts are found when the drowned tributaries and valleys ran parallel to the coast rather than at a right angle like rias. Fjords are formed when glaciers cut at a lower plac e the sea level and when the ice melted they flooded to form long, deep, foreshorten inlets with precipitous sides and hanging valleys (fjords are drowned glacial troughs).