How can we say that the mantle plumes are extremely strong?

The mantle plumes are considered very strong as they can even cause rifting and the formation of plates within the Earth’s crust . What’s more, they lead to widespread volcanic activity on the surface of the earth, which is above the plume.

Can we say that mantle plumes are responsible for the widespread volcanic activity on Earth?

Yes, mantle plumes play a large role in the occurrence of volcanic activity on Earth’s surface . This is because the extremely hot magma leads to the thinning and melting of the rocky crust of the earth. As a result, there is volcanic activity on the surface.

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What is a Mantle Plume?

Q: What is a Mantle Plume?

A mantle plume is a thin column of hot magma that flows toward the Earth’s crust , where the magma is considerably hotter than the magma that surrounds the Earth’s surface. The heat from the magma causes thinning and melting of the crust, leading to volcanic activity.

By BYJU'S Exam Prep

Updated on: September 11th, 2023

A Mantle Plume is a hot rock that moves as a narrow column towards the Earth’s crust, where the magma is much hotter than the magma that surrounds the Earth’s surface. Mantle plumes of this type can be found beneath the continental or oceanic crust or along the plate boundaries.

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1. Mantle Plume Definition

Mantle Plume Definition

Mantle plumes also, in a way, contribute to the volcanic activity on the Earth’s surface. These mantle plumes are considered extremely strong, so much so that they can even cause rifting and formation of plates within the Earth’s crust.

When a plume head collides with the lithosphere’s base, it is predicted to flatten down and undergo extensive decompression melting, resulting in huge amounts of basalt magma.
It may then erupt onto the surface.
Flood basalts have been related to these eruptions.
The eruption of continental flood basalts is frequently connected with continental rifting and breakdown, giving rise to the theory that mantle plumes contribute to continental rifting and ocean basin formation. However, this is still a hypothesis.

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