Coastal Landforms and Processes
The Coastal Landscapes of Jeju Island...now and in the future;
Shown above is a littoral zone found in Jeju Island that perfectly depicts the already well-known Hallasan Mountain. As I have labeled, the picture shows a few coastal forms and processes. In the backround, you can spot what looks to be a piece of land stretched out vertically into the water; this is called a tombolo which is a depositional landform; a landform created by material deposited by the water due the environment. To the right of the tombolo is an isolated pool of water called a lagoon and the stretch of sand seperating the lagoon from the body of water is called a bay barrier also formed by deposition.
Sanbang, Jeju Island |
Sunrise Peak, Jeju Island **Picture shows projected sea cliff to the left and back/sea cliff off of the beach to the right and front |
Diagram showing the process of the formation of a wave-cut notch |
In a 100 years, those wave-cut notches can eventually form erosional landforms called sea caves. In the picture below you can see the formation of a sea-cave to the right of the landscape.
As shown in the landscape above, the erosional coastal landscape in Jeju is completely diverse due to the frequent rain they recieve year-round that causes the tide to rise and damage the coast. The picture above proves that formations such as sea caves will begin to form over time and in Sunrise Peak’s case the notch’s that will begin to appear in 10 years should and will begin to develop into sea caves 100 years from now
Image of a sea cave on a coastal landscape in Jeju |
1000 years from now, if the tide hits hard enough on the sea cliff shown in Sunrise Peak that is directly projected into the water (labeled beneath the image), the cliff could eventually break off completely and form a sea stack. Due to the weight of the cliff above the developing notch, the rock will detatch itself and become a completely separate entity. The picture below shows a sea stack on Udo-Island in Jeju.
Udo-Island Sea Stack |
Images taken from:
http://nature.new7wonders.com/archives/wonder/jeju-island
http://geobytesgcse.blogspot.com/2007/08/coastal-erosion-landforms-features-and.html
http://geobytesgcse.blogspot.com/2007/08/coastal-erosion-landforms-features-and.html
Information taken from:
http://clasfaculty.ucdenver.edu/callen/1202/Landscapes/KarCoast/KarCoast.html