Examine the influence of tectonic activity on the development of the Irish landscape. - Leaving Cert Geography - Question C - 2015
Question C
Examine the influence of tectonic activity on the development of the Irish landscape.
Worked Solution & Example Answer:Examine the influence of tectonic activity on the development of the Irish landscape. - Leaving Cert Geography - Question C - 2015
Step 1
Identify Tectonic Activity
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Answer
Tectonic activity refers to the movements and interactions of the Earth's plates, which include processes like earthquakes, volcanic eruptions, and the formation of mountains. In Ireland's context, significant tectonic activities include the divergence of the Eurasian and North American plates and the historical impacts of the Caledonian Orogeny.
Step 2
Discuss the Caledonian Orogeny
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The Caledonian Orogeny, occurring approximately 400 million years ago, played a foundational role in shaping the Irish landscape. It formed the mountainous regions in western Ireland, particularly in areas like the Macgillycuddy's Reekes and the Mourne Mountains, due to the collision of tectonic plates.
Step 3
Provide Examples of Named Landscapes
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Examples of landscapes formed by tectonic activity include the Antrim Plateau and the Giant's Causeway, which demonstrate features such as basalt columns resulting from volcanic activity linked to tectonic movements.
Step 4
Reference to Volcanism
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Volcanic activity, a result of tectonic movements, has influenced features such as the extensive lava flows seen in places like the Skellig Islands, creating unique ecosystems and geological formations.
Step 5
Impact of Earthquakes
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Although Ireland experiences fewer earthquakes compared to other regions, its tectonic history has resulted in occasional seismic events that contribute to the overall geomorphological development of the landscape.
Step 6
Labelled Diagram
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A labelled diagram illustrating the tectonic plate movements affecting the Irish landscape can enhance understanding. This may include markings for major geological features and their relation to tectonic boundaries.
Step 7
Summary of Relevant Landscapes
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Answer
In summary, the influence of tectonic activity on the Irish landscape is evident through its mountainous regions, unique geological formations, and occasional seismic events that shape both the physical and ecological characteristics of the country.
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