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Why do the magma move?

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Why do the magma move?
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Meghna Thapar 4 years, 5 months ago

Differences in temperature, pressure, and structural formations in the mantle and crust cause magma to form in different ways. Decompression melting involves the upward movement of Earth's mostly-solid mantle. This reduction in overlying pressure, or decompression, enables the mantle rock to melt and form magma. Volcanoes on Earth form from rising magma. Magma rises in three different ways. Magma can rise when pieces of Earth's crust called tectonic plates slowly move away from each other. ... The high heat and pressure cause the crust to melt and rise as magma.

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