The Features and Processes Associated with Sea Level Change

3530 Words15 Pages
The Features and Processes Associated with Sea Level Change Water is the most powerful, destructive and creative force in the world in which we live. Over 60% of the total area of the earth in covered by water and as such has the largest effect on the shape of the land and the carving of new features. The changes that come about through the movement and change of state of water are various and encapsulate a multitude of factors. In this essay I am going to focus upon landforms that have been altered or changed through the process of water. In particular costal landforms. Costal landforms can be affected by three factors. Sea level change, land movement and glacial movement. Thee these factors can be indexed into two categories Isostatic and Eusostatic. Eusostatic movements are the global effects such as sea level change and the creation of gondwana and other such global continental movements. Isostatic movements are on a local scale and are land based or to do with ice caps. Although this is a certain crossover point here with global warming and large scale tectonic movements that can affect the world on both a global and local scale and therefore cross the boundaries between Isostatic and eusostatic. I will concentrate on explaining the 8 different land types that have been created. Though isostatic and eusostatic changes. Firstly there are two types of drowned river valleys. Rias are found in highland areas whereas estuaries are found in low lying areas. Rias are largely classed as long narrow inlets that gradually decrease in depth from mouth to head of the river whereas estuaries are classed generally as large bodies of water at the mouth of a river where large mud flats form due to a process where salt water and fresh water mixes and deposits sediment. There are two types of glaciated valleys, fjords are highland glaciated valleys and fiards are lowland glaciated valleys. Fjords are over deepened u shaped valleys caused when glaciers meet the sea and cause large amounts of vertical erosion.

More about The Features and Processes Associated with Sea Level Change

Open Document