Extrusive igneous rocks often have air pockets, but intrusive igneous rocks never do. Why do you think this is

Question

Extrusive igneous rocks often have air pockets, but intrusive igneous rocks never do. Why do you think this is the case. in 1-2 sentences

GPT-5 mini · Accepted Answer

Extrusive rocks cool quickly at or near the surface where the pressure drop lets dissolved gases exsolve and form bubbles that get trapped as vesicles. Intrusive rocks crystallize slowly deep underground under high pressure, so gases stay dissolved or escape gradually and no air pockets form.

Extrusive igneous rocks often have air pockets, but intrusive igneous rocks never do. Why do you think this is the case. in 1-2 sentences

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