Intrusive igneous (plutonic) rocks:
A) solidify below the surface of the ground.
B) solidify above the surface of the ground.
C) form by crystallization of magmas intruded into surrounding rocks.
D) solidify below the ground AND form by crystallization and intrusion of magma into surrounding rocks
E) solidify above the ground AND form by crystallization and intrusion of magma into surrounding rocks

Question

Quizplus · Accepted Answer

Intrusive igneous rocks, also known as plutonic rocks, solidify below the Earth's surface and form by the crystallization of magma that intrudes into surrounding rocks. This process allows them to cool slowly, resulting in the formation of large crystals.

Intrusive Igneous (Plutonic) Rocks