A(n)________texture would be most unlikely to occur in an extrusive igneous rock.
A)pyroclastic
B)aphanitic
C)glassy
D)phaneritic

Question

Quizplus · Accepted Answer

Phaneritic texture is characterized by large, visible mineral grains that have had time to grow slowly within the magma chamber before solidifying into rock. This texture is only typically found in intrusive igneous rocks since they have had time to cool and crystallize slowly beneath the Earth's surface. Extrusive igneous rocks, on the other hand, cool and solidify quickly on or near the Earth's surface, making it unlikely for phaneritic texture to occur in these types of rocks. Choices A, B, and C are all textures that can occur in extrusive igneous rocks.

A(n)________texture Would Be Most Unlikely to Occur in an Extrusive