3 years ago

Why are the crystals of intrusive igneous rock typically larger than those of extrusive igenous rock?

2 answers:

3 0

Intrusive rocks come from magma. They cool slowly deep in Earth's crust. When magma cools underground, the crust acts like a blanket, insulating it, keeping it warm longer. Because the magma cools slowly, crystals of different minerals have time to grow.

lidiya [134]3 years ago

3 0

The correct answer is (B. because the magma cools much slower

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