Pockets of Magmas Can Be Formed by the Melting of Deep

question 28

Multiple Choice

Pockets of magmas can be formed by the melting of deep continental crust heated by the intrusion of other magmas. Which of the following correctly describes this process?

• A)Intrusion of diorite magma causes basalt magma to melt from peridotite.
• B)Intruded rhyolite magma causes basalt magma to form by melting of granite.
• C)Intrusion of basaltic magma causes deep crustal rocks to melt, producing andesitic or rhyolitic magmas.
• D)All of the above correctly describe the process.

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