Origin of Magma:
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4 Terms
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What is partial melting?
The process where only part of the rock melts to form magma, leading to a semi-solid state known as "crystal mush."
2
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How do pressure and temperature influence magma formation?
Increased pressure raises the melting point, while reduced pressure (decompression melting) lowers the melting point.
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What role do volatiles (primarily water) play in magma formation?
Volatiles lower the melting temperature of rocks, facilitating magma formation.
4
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What is the role of mantle plumes?
Mantle plumes are hot columns of mantle material that rise and generate large volumes of magma.
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