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Select any one of the following surface processes: - Sea/marine action - River action - Glacial action - Mass movement - Leaving Cert Geography - Question Select any one of the following surface processes: - 2008
Question Select any one of the following surface processes:
Select any one of the following surface processes: - Sea/marine action - River action - Glacial action - Mass movement. And explain the formation of any two Irish l... show full transcript
Worked Solution & Example Answer:Select any one of the following surface processes: - Sea/marine action - River action - Glacial action - Mass movement - Leaving Cert Geography - Question Select any one of the following surface processes: - 2008
Step 1
Formation of Landform 1: Coastal Cliffs
Answer
Coastal cliffs are formed primarily through sea/marine action. The process begins with wave action, where the energy of the waves erodes the coastline. This erosion occurs at different rates depending on the rock type and structure, leading to the formation of notches at the base of the cliffs.
As the notches grow larger, overhanging portions of the cliff can collapse due to gravity, causing the cliff to retreat inland over time.
Diagram: (Insert a diagram illustrating wave action eroding the cliff base and the subsequent collapse of the overhanging section.)
Step 2
Formation of Landform 2: Sea Stacks
Answer
Sea stacks are another landform that occurs due to marine erosion. Initially, waves erode headlands and create arches by exploiting weaknesses in the rock layers. Eventually, as the arch becomes wider and more unstable, it collapses, leaving isolated vertical columns of rocks known as sea stacks. This process illustrates the power of marine action in shaping the coastal landscape.
Diagram: (Insert a diagram demonstrating the erosion process leading to the formation of arches and sea stacks.)