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Discuss the theory of plate tectonics (the plate tectonics model). - Leaving Cert Geography - Question 3C - 2019
Question 3C
Discuss the theory of plate tectonics (the plate tectonics model).
Worked Solution & Example Answer:Discuss the theory of plate tectonics (the plate tectonics model). - Leaving Cert Geography - Question 3C - 2019
Step 1
Introduction to the Plate Tectonics Model
Answer
The theory of plate tectonics explains the movement of the Earth's lithosphere, which is divided into tectonic plates. These plates float on the semi-fluid asthenosphere beneath them and are responsible for various geological phenomena such as earthquakes, volcanic activity, and mountain building.
Step 2
Key Theorists and Contributions
Answer
One prominent theorist associated with the development of this model is Alfred Wegener, who proposed the concept of continental drift. Although his ideas were initially met with skepticism, they laid the groundwork for the plate tectonics theory, which was further developed by scientists like Harry Hess, who introduced the concept of sea-floor spreading.
Step 3
Geographical Locations Relevant to Plate Tectonics
Answer
The Pacific Ring of Fire is a key geographical location where numerous tectonic activities occur, including volcanic eruptions and earthquakes. This area encircles the Pacific Ocean and is home to a significant number of tectonic plate boundaries.
Step 4
Movement of Tectonic Plates
Answer
Tectonic plates can move in several ways: they can collide (convergent boundaries), move apart (divergent boundaries), or slide past each other (transform boundaries). These movements not only shape the Earth's surface but also contribute to seismic activities.
Step 5
Diagrams and Additional Information
Answer
To better understand the interactions between tectonic plates, diagrams illustrating the plate boundaries and the types of movements should be utilized. An appropriate diagram may include labels for each boundary type (convergent, divergent, and transform). It will visually represent the dynamics of plate interactions.