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Ad libitum [116K]
3 years ago
8

Which type of volcanism formed the Andes in South America?

Geography
1 answer:
nadezda [96]3 years ago
5 0

<em>The convergence between a continental plate and an oceanic plate</em><em> is subduction process where the denser oceanic plate force the </em><em>thinner continental plate to sink into the mantle.</em>

<u>Answer:</u><em> Option (D)</em>

<u>Explanation:</u>

The<em> type of volcanism formed the Andean Mountains in South America</em> is due to subduction process.  It is due to the converging of Nazca Plate over Antarctic Plate due to gravity and made them to sink below the <em>South American Plate. </em>

This process still continues today and due to the activity, it causes volcanic eruptions and earthquakes in that region. It was reported about <em>150 - 160 (approx.) active volcanoes in the Volcanic Belt of Andes.</em>

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Due to their connection to accretive and destructive plate boundaries, the horizontal widths of the convection cells causing mantle drag would be projected to be around half an ocean's breadth, or 3000 km.

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