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B. Plate Tectonics – Volcanoes (i) Name one example of a volcano - Junior Cycle Geography - Question B - 2012
Question B
B. Plate Tectonics – Volcanoes (i) Name one example of a volcano. (ii) With reference to the diagram above explain how volcanoes occur.
Worked Solution & Example Answer:B. Plate Tectonics – Volcanoes (i) Name one example of a volcano - Junior Cycle Geography - Question B - 2012
Step 1
Step 2
With reference to the diagram above explain how volcanoes occur.
Answer
Volcanoes occur as a result of tectonic plate movements. In the diagram, we can see two tectonic plates moving apart from each other.
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As the plates diverge, magma from the mantle rises to fill the gap. This magma is less dense than the surrounding rock, causing it to ascend towards the Earth's surface.
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Eventually, the magma breaks through the surface, resulting in a volcanic eruption. This process is often accompanied by the formation of new crust and the release of gases, leading to explosive volcanic activity. Furthermore, the diagram shows the location of the magma chamber below the surface, which plays a crucial role in the formations and eruptions of volcanoes.